join

join the Party join us in doing sth

join是指加入某个group、club或者organization或者其他的团体或者协会，强调“个人加入到集体中”。join in是指参与某个活动，等于take part in。 join和join in区别 （1）join 是指加入某个group、club或者organization或者其他的团体或者协会，强调“个人加入到集体中”；我们还可以说：join up. 例句：She joined a dance company which took her around the world. 她加入了一个舞蹈团，到世界各地去演出。 （2）join in 是指参与某个活动，等于take part in。 例句：He started to sing and I joined in. 他开始唱起歌来，然后我也跟着唱起来。 如果说"与某人一起做某事"、"和……在一起"则用 join sb.in sth./doing sth… 例句： Would you join me in a walk? 和我一起去散步好吗? Will you join us in a game of cards? 你愿意和我们一起玩牌吗?

1. join in后面的宾语必须是表示具体活动的名词，如party/meeting/ceremony等，类似于take part in和participate in。如：join in a party 参加晚会join in the sports meeting 参加校运会2. 而join后面的宾语必须是sb（某人）或表示团队组织的名词。如：join us 加入我们join the army 参军join the WTO 参加世贸组织3. 有时候，可以把两者合并为：join sb in (doing) sth，意思是“加入某人去做某事”如：Why not join us in playing soccer?为什么不加入我们，一起来踢足球呢？

join/ join in/ take part in/attend这三个词组在汉语中都表示“参加”，但在英语使用中是有区别的：(1)join通常指参加某种固定的组织、团队、军队等，强调成为其中一员。He joined the party in 1927.他1927年入党。(2)join sb. (in) doing sth.“和某人一起干某事”。Why not join us in buying Susan gift?为什么不和我们一起去给苏珊买礼物呢？(3)join in表示“参加某项活动”时，和take part in 可换用，但前者侧重娱乐、欣赏，而后者更侧重身体力行，参加在其中。例：She has never joined/ taken part in such an interesting game.她从未参加过这么有趣的游戏。(4)take part in 指参加各种活动，包括文娱、体育、比赛、斗争、罢工等。如：Are you going to take part in/ join in the discussion?你要参加讨论吗？(5)这几组词都是瞬间动词（终止性动词），用于完成时的句子时不能跟延续的时间状语连用。如：He has joined the league for five years. (×)He has been a league member for five years. (√)他入团已经有5年了。(6)attend原意指出席，即出席会议：attend the meeting

engage in是从事于，参加，进行，engage sb in让某人从事于，engage oneself in正做着。。， join in也是参加某项活动 join是加入什么组织，团体或加入别人一起去做什么事

join in the interviewparticipate in the interviewattend the interview

一个句子不是不能有两个动词，而是不能有两个非并列关系的谓语动词。“A new girl came to join the class.”中，came是谓语动词，to join是不定式，而不定式是非谓语动词的一种。所以这个句子是成立的。

把group by后面的b.category改成a.id

请让我加入你们吧，和你们一起玩我会很开心。

It should be derived demand. Firstly, you should know the definitions of both derived demand and joint demand. Derived demand refers to the demand for factors of production such as houses and cement. Joint demand me o goods are used together to satisfy human wants such as DVDs and DVD player. In this case, the taxi is the factor of the production of taxi service by the taxi driver. Your demand for taxi service is derived from your demand for taxi. It is not joint demand because when 2 goods A and B are in joint demand, A cannot be used to produce B and vice versa. Just like the example of DVDs and DVD player. Can you use DVDs to produce DVD player? Hence it is derived demand. Hope it helps.,参考: My Economics Knowledge,Joint demand is the wer. 对生产资料 (factor of production) 的需求是一种引申需求。 For example: 电脑硬件需要适当的电脑软件才能使用, however they are not derived demand but joint demand. For 引申需求，一件是 final good (最终物品)，另一件为该 final good 的生产资料；For 辅助品 joint demand，两者都是 final good。 Taxi and Taxi driver are derived demand for Taxi service. We can view Taxi and Taxi driver as another sample of DVD and DVD player, i.e. bining it we can watch DVD or have taxi service. If DVD and DVD player are joint demand,why should we said Taxi and Taxi driver is derived demand?,I don"t agree with the wer above. For taxi SERVICE and taxi driver, they are in derived demand. People demand for taxi service. In order to provide taxi service we demand taxi drivers. That"s why the demand for taxi service derives the demand for taxi drivers. For taxi (the VEHICLE itself) and taxi driver, they must be USED TOGETHER to provide taxi SERVICE to satisfy wants, while either one of them cannot. So they are in joint demand instead. Joint demand does not mean that one good produces another!!!!,

第一个：用Thread.join只能部分的实现CountDownLatch的功能. 这个看看CountDownLatch的java doc就可以了.第二个：Thread.join用了Object.wait/notify机制. java.lang.Thread.join(long millis) java doc里写道:This implementation uses a loop of this.wait calls conditioned onthis.isAlive. As a thread terminates the this.notifyAll method isinvoked. It is recommended that applications not use wait, notify,or notifyAll on Thread instances.Effective Java第二版里说的很好, wait/nofify 和java.util.concurrent提供的功能比起来, 就好像是 并发汇编语言(concurrency assembly language) 一样. 更难用而且也更容易出bug.

1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.满意请采纳，谢谢，不懂可以继续问

take part in 和join 都有“参加”的意思，但它们之间还是有不小的区别： 1. take part in take part in 意为“参加、参与（某事物或某活动，如movement, revolution, meeting, conference, conversation, war等）“。例如： Switzerland didn"t take part in this war. 瑞士没有参加这次战争。 How many countries will take part in the World Cup? 有多少国家要参加世界杯？ 2. join join意为“参加（某组织），加入（某处任职），参加到某个人群中去，从而成为其中一员”。例如： She joined a health club. 她参加了一个健身俱乐部。 We both joined the Labor Party. 我们俩都加入了工党。

join+sbjoin in +sth(某些组织）

解答： join,join in和take part in 1)加入某党派、某组织或某社会团体，用join，不可用join in。如： ①He will never forget the day when he joined the Party. 他永远也忘不了他入党的那一天。 ②His brother joined the army three years ago. 他哥哥是三年前参军的。 join还可解释为“连接”。如： ①The railway joined the two cities. 铁路把两个城市连接起来了。 ②The two clauses are joined by a conjunction. 两个分句由一个连词连接起来。 2)说参加某种活动用join in，如说“与其人一起做某事”，则用join sb. in sth. / doing sth. 。如： ①May I join in the game? 我可以参加这个游戏吗？ ②Come and join us in the discussion. 来和我们一起讨论吧！ ③We are having supper now.Would you like to join us? 我们正在吃晚饭，你也来和我们一起吃好吗？ join in多指参加小规模的活动如“球赛、游戏”等，常用于日常口语。如：①Come along, and join in the ball game. 快，来参加球赛。②Why didn"t you join in the talk last night? 昨晚你为什么没参加座谈？3)take part in参加(群众性活动、会议等)，往往指参加者持积极态度．起一份作用。如： ①A great number of students took part in May 4 Movement. 大批学生参加了五四运动。 ②We are going to have an English evening. Do you want to take part? 我们准备举办一个英语晚会，你想参加吗？ ③How many of you are going to take part? 你们多少人准备参加？ ④All the students took an active part in the thorough cleaning. 所有的学生都积极参加了大扫除。【注意】take part in是惯用词组，part前一般不用冠词，但part前有形容词修饰时，要用不定冠词。如：Lincoln took an active part in polities and was strongly against slavery. 林肯积极参加政治活动，强烈反对奴隶制。enjoy--get pleasure from;take delight in. “享受...之乐趣；乐于”。例如： I"ve enjoyed talking to you about old times. 我很高兴曾经和你叙旧。 like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗？ I like to read in bed but I don"t like having meals in bed. 我喜欢躺在床上看书，但我不喜欢在床上吃饭。 at the end of“在……末端（尽头）；在……末（底）”可表示时间，也可表示地点。 后面可以跟名词或相当于名词的词。在句中作时间状语，可以放在句子开头，也可以放在句子末尾。 例如：There is a post office at the end of the road. 在路的尽头有一家邮局。 At the end of last week,we had a class meeting. 到上个星期末，我们开了一次班会。 at last=in the end=finally“最后；终于”，后面不接任何单词，在句中作时间状语，一般放在句子开头。 例如：At last/Finally,they won the football match. 他们终于赢了这场足球比赛。 We walked three hours.At last/In the end,we got to the park. 我们走了三个小时。最后我们终于到达了公园。

join,ue80bjoin in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.attend主要用于参加比较重要的场合与会议

都是短暂加入

join,ue80bjoin in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.

答：join,ue80bjoin in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.attend主要用于参加比较重要的场合与会议

join,ue80bjoin in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.attend主要用于参加比较重要的场合与会议

Take part in a partyJoin us Join in army

答：join,ue80bjoin in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.attend主要用于参加比较重要的场合与会议

combine是联合的意思，侧重指某物与其他事物联成一体，consolidate指整合，侧重指整体consolidate[英][ku0259nu02c8su0252lu026adeu026at][美][ku0259nu02c8sɑ:lu026adeu026at]vt.统一;把…合成一体，合并;巩固，加强zd;合计金额;vi.合并;统一;联合;第三人称单数：consolidates过去分词：consolidated现在进行时：consolidating过去式：consolidated

join,?join in和take part in 1)加入某党派、某组织或某社会团体，用join，不可用join in。如： ①He will never forget the day when he joined the Party. 他永远也忘不了他入党的那一天。 ②His brother joined the army three years ago. 他哥哥是三年前参军的。 join还可解释为“连接”。如： ①The railway joined the two cities. 铁路把两个城市连接起来了。 ②The two clauses are joined by a conjunction. 两个分句由一个连词连接起来。 2)说参加某种活动用join in，如说“与其人一起做某事”，则用join sb. in sth. / doing sth. 。如： ①May I join in the game? 我可以参加这个游戏吗？ ②Come and join us in the discussion. 来和我们一起讨论吧！ ③We are having supper now.?Would you like to join us? 我们正在吃晚饭，你也来和我们一起吃好吗？ join in多指参加小规模的活动如“球赛、游戏”等，常用于日常口语。如： ①Come along, and join in the ball game. 快，来参加球赛。 ②Why didn"t you join in the talk last night? 昨晚你为什么没参加座谈？ 3)take part in参加(群众性活动、会议等)，往往指参加者持积极态度．起一份作用。如： ①A great number of students took part in May 4 Movement. 大批学生参加了五四运动。 ②We are going to have an English evening. Do you want to take part? 我们准备举办一个英语晚会，你想参加吗？ ③How many of you are going to take part? 你们多少人准备参加？ ④All the students took an active part in the thorough cleaning. 所有的学生都积极参加了大扫除。 【注意】take part in是惯用词组，part前一般不用冠词，但part前有形容词修饰时，要用不定冠词。如： Lincoln took an active part in polities and was strongly against slavery. 林肯积极参加政治活动，强烈反对奴隶制。 enjoy--get pleasure from;take delight in. “享受...之乐趣；乐于”。例如： I"ve enjoyed talking to you about old times. 我很高兴曾经和你叙旧。 like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗？ I like to read in bed but I don"t like having meals in bed. 我喜欢躺在床上看书，但我不喜欢在床上吃饭。 at the end of“在……末端（尽头）；在……末（底）”可表示时间，也可表示地点。 后面可以跟名词或相当于名词的词。在句中作时间状语，可以放在句子开头，也可以放在句子末尾。 例如：There is a post office at the end of the road. 在路的尽头有一家邮局。 At the end of last week,we had a class meeting. 到上个星期末，我们开了一次班会。 at last=in the end=finally“最后；终于”，后面不接任何单词，在句中作时间状语，一般放在句子开头。 例如：At last/Finally,they won the football match. 他们终于赢了这场足球比赛。 We walked three hours.At last/In the end,we got to the park. 我们走了三个小时。最后我们终于到达了公园。 及物动词 vt. 1.出席,参加He did not attend the meeting yesterday. 昨天他没有参加会议。 2.上(大学等),前往The school was attended almost entirely by local children. 上这个学校读书的几乎全是当地的孩子。 3.照料;护理;侍候There was no one to attend him but Tina. 除了蒂娜,再无人照顾他了。 4.伴随,带有5.陪同,护送不及物动词 vi. 1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter. 我来处理此事。 3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying. 她并不注意听我所说的话。 attend主要用于参加比较重要的场合与会议

答：join,ue80bjoin in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.attend主要用于参加比较重要的场合与会议

join,join in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.Would you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.attend主要用于参加比较重要的场合与会议

join become a member of an organization or start work in an organization 加入党派组织或团体，后面可跟团体等作宾语；也可跟人作宾语，表示参与某种活动。 join the army Party, League, team, club, sb in sthjoin in to take part in an activity as part of a group of two or more people 参加某种活动，通常指参加正在进行着的活动，尤其指和其他人一起参加某项活动。 join in the game, singing, dancing, work, talk, matchtake part in be involved in an activity, sport, event etc. together with other people 参加活动，参加者持积极态度并起到一定的作用。 take part in a discussion, game, fight, celebration 有时与join in可互换attend To go to an event such as a meeting or a class 正式用语，一般指参加会议、典礼、婚礼、葬礼及去听课、听报告等 attend school, wedding, meeting

join,ue80bjoin in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.attend主要用于参加比较重要的场合与会议来自百度作业帮

take part in——参与（活动）join——参加（组织）attend——出席（会议）sign up for——签约参加工作

答：join,ue80bjoin in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.attend主要用于参加比较重要的场合与会议

答：join,ue80bjoin in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.attend主要用于参加比较重要的场合与会议

加入我们!

welcomewelcome 英[ˈwelkəm] 美[ˈwɛlkəm] vt. 欢迎; 乐于接受; adj. 受欢迎的; 令人愉悦的; 表示感谢的; n. 欢迎，迎接; [例句]Several people came by to welcome me.有几个人过来迎接我。[其他] 比较级：welcomer 最高级：welcomest 第三人称单数：welcomes复数：welcomes 现在分词：welcoming 过去式：welcomed过去分词：welcomed 形近词： helcoma 双语例句 柯林斯词典 英英释义 百度百科

join us,中间不跟to. 一般这样写：You are welcome to contact us and join us.

及物动词

当然有的。join sb. in sth./doing sth"与某人一起做某事"、"和……在一起"join sb"表示参加某种组织或加入某人的活动中去"如：Would you join me in a walk?=Would you join me in taking a walk?和我一起去散步好吗？Welcome to join us.欢迎加入我们！

加入，welcome to join usjoin in加入，，， 例 could you join in our club?

Warmly welcome to join our family.中文意思：热烈欢迎成为我们家庭的成员.

应该是welcomed 被动形式

这个吧。。。同学。。。肯定是假的啊。。。你百度一下这个题目 就能看到07年就有人发了 而且这个难度。。。反正在我看来太简单了。。。说是四级还差不多。。。另外你说如果有人知道了他会公布出来嘛？当然是自己抄或者卖掉了 不然知道的人多了大家都写一样的 那这次考试肯定也就作废了。。。快去背背作文模板吧~

ty

是的

We,English Club,are recruiting new members.Those with a keen love for English may joinus on great trip to the world of English.Our Club is a 20 years old student organization in our school,which has been very popularamong students.It provide a good environmentfor students with common interest in English speaking,writing and other related areas.Our Club center on improving our members" English skills and promoting friendship andfun among our members.The Club is most famed for its traditional activity—English Corner heldevery Thursday,where English lovers gather together,making friends,exchanging ideas and mostimportantly improving their oral English.We also play classical English movies free of chargeto our members,and put on English dramas acted by our members,just to name a few.Welcome to join us.If you interest in English studies and want to have fun as well,please don"thesitate Interested students please call 55884 or send an email to EnglishClub@soso.com.

join动词不定式真不用加ingwele to 的to是介词还是不定式 就是wele to后面+ING还是原型？？ 别误人子弟~最好写个例句 匿名网友 2010年02月 满意答案 后接地点是介词，如 wele to my school 后接动作是不定式，如 wele to join us不是说介词后面都要加吗不是都要加喔喔、行，我明白了，谢谢哦...,3,嗯,2,joining,1,不用加ing,1,是的,0,是的,0,

Welcome to join us这句正确。翻译：欢迎加入我们。

参加 比如：I joined in the conversation. 我参入了这个话题。

我在市区一家快餐连锁店前巧遇了他。

For each person campaign is very important. As the saying goes: Life is movement. For example on me, and I like movement from childhood and I often run, but I love playing soccer very much, untill today I played football for more than 10 years. I join the school team, although I"m very confident individual skills, but after a lot of market failure, I began to realize that football is a collective movement, we need to meet to obtain the final victory. Although some people think that playing soccer is to play football, but I understand it from a lot of life philosophy, really, I love football.

join in the English corner 去参加英语角

go to 就行了。take part in一般用于某种event，是那种比较大型的集会、仪式，比如什么游-行啊，节日庆典啊，比赛啊之类的。而英语角大多数是一周一次甚至几次的，算不上event。如果英语角某天有什么特殊活动，你可以用take part in那个活动。join是加入某团体，a group，the army, the navy, a league什么的，一般是有正式加入仪式或者正式挂名的团体，总之是加入一群人或一群人的某种活动中。英语角不是一群人，而是一个平台，当join的宾语不是特别合适。你可以说join them in the English Corner，也就是在英语角加入大家伙(的谈话、交流中）。非要在take part in和join里挑的话，join好一点点。

inner join = join 内连接。表中至少有1个匹配时，才返回行。举个例子吧。表Aid name 1 张2 李3 王表Bid address A_id1 北京 12 上海 3SQL语句如下：select A.name,B.address fromA inner join Bon A.id = B.A_id查询结果为：张 北京王 上海

一样的。省略写法

MS SQL Server中 join 等效于inner join相关知识点延伸，MS SQL Server中四种join方式：JION（inner join）(等值连接)：只返回两个表中联结字段相等的行；left join(左联接)：返回包括左表中的所有记录和右表中联结字段相等的记录；right join(右联接)：返回包括右表中的所有记录和左表中联结字段相等的记录。FULL JOIN （全联接）：某个表存在匹配，FULL JOIN 关键字就会返回行。

inner join on, left join on, right join on讲解(转载) 1.理论只要两个表的公共字段有匹配值，就将这两个表中的记录组合起来。个人理解：以一个共同的字段求两个表中符合要求的交集，并将每个表符合要求的记录以共同的字段为牵引合并起来。语法FROM table1 INNER JOIN table2 ON table1 . field1 compopr table2 . field2INNER JOIN 操作包含以下部分：部分 说明table1, table2 要组合其中的记录的表的名称。field1，field2 要联接的字段的名称。如果它们不是数字，则这些字段的数据类型必须相同，并且包含同类数据，但是，它们不必具有相同的名称。compopr 任何关系比较运算符：“=”、“<”、“>”、“<=”、“>=”或者“<>”。说明可以在任何 FROM 子句中使用 INNER JOIN 操作。这是最常用的联接类型。只要两个表的公共字段上存在相匹配的值，Inner 联接就会组合这些表中的记录。可以将 INNER JOIN 用于 Departments 及 Employees 表，以选择出每个部门的所有雇员。而要选择所有部分（即使某些部门中并没有被分配雇员）或者所有雇员（即使某些雇员没有分配到任何部门），则可以通过 LEFT JOIN 或者 RIGHT JOIN 操作来创建外部联接。如果试图联接包含备注或 OLE 对象数据的字段，将发生错误。可以联接任何两个相似类型的数字字段。例如，可以联接自动编号和长整型字段，因为它们均是相似类型。然而，不能联接单精度型和双精度型类型字段。下例展示了如何通过 CategoryID 字段联接 Categories 和 Products 表：SELECT CategoryName, ProductNameFROM Categories INNER JOIN ProductsON Categories.CategoryID = Products.CategoryID;在前面的示例中，CategoryID 是被联接字段，但是它不包含在查询输出中，因为它不包含在 SELECT 语句中。若要包含被联接字段，请在 SELECT 语句中包含该字段名，在本例中是指 Categories.CategoryID。也可以在 JOIN 语句中链接多个 ON 子句，请使用如下语法：SELECT fieldsFROM table1 INNER JOIN table2ON table1.field1 compopr table2.field1 ANDON table1.field2 compopr table2.field2) ORON table1.field3 compopr table2.field3)];也可以通过如下语法嵌套 JOIN 语句：SELECT fieldsFROM table1 INNER JOIN(table2 INNER JOIN [( ]table3[INNER JOIN [( ]tablex [INNER JOIN ...)] ON table3.field3 compopr tablex.fieldx)]ON table2.field2 compopr table3.field3) ON table1.field1 compopr table2.field2;LEFT JOIN 或 RIGHT JOIN 可以嵌套在 INNER JOIN 之中，但是 INNER JOIN 不能嵌套于 LEFT JOIN 或 RIGHT JOIN 之中。2.操作实例表A记录如下：aID aNum1 a200501112 a200501123 a200501134 a200501145 a20050115表B记录如下:bID bName1 20060324012 20060324023 20060324034 20060324048 2006032408实验如下:1.left joinsql语句如下: select * from Aleft join B on A.aID = B.bID结果如下:aID aNum bID bName1 a20050111 1 20060324012 a20050112 2 20060324023 a20050113 3 20060324034 a20050114 4 20060324045 a20050115 NULL NULL（所影响的行数为 5 行）结果说明: left join是以A表的记录为基础的,A可以看成左表,B可以看成右表,left join是以左表为准的.换句话说,左表(A)的记录将会全部表示出来,而右表(B)只会显示符合搜索条件的记录(例子中为: A.aID = B.bID).B表记录不足的地方均为NULL.2.right joinsql语句如下: select * from Aright join B on A.aID = B.bID结果如下:aID aNum bID bName1 a20050111 1 20060324012 a20050112 2 20060324023 a20050113 3 20060324034 a20050114 4 2006032404NULL NULL 8 2006032408（所影响的行数为 5 行）结果说明: 仔细观察一下,就会发现,和left join的结果刚好相反,这次是以右表(B)为基础的,A表不足的地方用NULL填充.3.inner joinsql语句如下: select * from Ainnerjoin B on A.aID = B.bID结果如下:aID aNum bID bName1 a20050111 1 20060324012 a20050112 2 20060324023 a20050113 3 20060324034 a20050114 4 2006032404结果说明: 很明显,这里只显示出了 A.aID = B.bID的记录.这说明inner join并不以谁为基础,它只显示符合条件的记录.

在进行海量查询的时候INNER JOIN 效率要高于IN

但的确是等价的哦，没对比一下结果集中的记录是一样的吗？只是记录的顺序不一样哦。join是自然连接，对两张表中字段名和数据类型都相同的字段进行等值连接，并返回符合条件的结果，而inner join是内连接,显示符合连接条件的记录，连接条件已经指明了。这里需要注意join的时候和inner join连接时使用的连接条件是不一样的，所以在结果中记录出现的顺序会有所不同，但两个结果结合是一样的。

介绍 Inner Join 及 Outer Join 以及其应用 Inner Join Inner Join 应该是最常用的 Join 方式, 它只会传回符合 Join 规则的纪录, 还是先来看看语法 Select From [On ] 现在我们利用 MS SQL 内建的北风数据库来实际练习一下! 想多了解 MS SQL 的内建数据库, 你可以看看 SQL Server 的内建数据库 这篇文章 请打开 QA (Query Analyzer), 为了使用北风数据库, 请先执行 Use Northwind, 然后执行 Select ProductId, ProductName, SupplierId From Products 从 Products 产品资料表中取出三个字段, 分别是产品代码, 产品名称, 供货商代码, 但查询出来的结果保证让你的老板很不满意, 因为供货商代码对于人类实在是无虾米意义, 这个时候 Join 就可以帮上忙了, 藉由 Join Suppliers 这个资料表我们便可以查询到供货商名称 Select ProductId, ProductName, Suppliers.SupplierId From Products Inner Join Suppliers Products.Suppliers = Suppliers.SupplierId 这款的查询结果是不是卡清楚呢! Inner Join 的主要精神就是 exclusive , 叫它做排他性吧! 就是讲 Join 规则不相符的资料就会被排除掉, 譬如讲在 Product 中有一项产品的供货商代码 (SupplierId), 没有出现在 Suppliers 资料表中, 那么这笔记录便会被排除掉 Outer Join 这款的 Join 方式是一般人比较少用到的, 甚至有些 SQL 的管理者也从未用过, 这真是一件悲哀的代志, 因为善用 Outer Join 是可以简化一些查询的工作的, 先来看看 Outer Join 的语法 Select From [Outer] Join On 语法中的 Outer 是可以省略的, 例如你可以用 Left Join 或是 Right Join, 在本质上, Outer Join 是 inclusive, 叫它做包容性吧! 不同于 Inner Join 的排他性, 因此在 Left Outer Join 的查询结果会包含所有 Left 资料表的资料, 颠倒过来讲, Right Outer Join 的查询就会包含所有 Right 资料表的资料, 接下来我们还是来做些实际操作, 仍然是使用北风数据库, 但要先做一些小小的修改, 才能达到我们要的结果 首先要拿掉 Products 资料表的 Foreign Key, 否则没有法度在 Products 资料表新增一笔 SupplierId 没有对映到 Suppliers 资料表的纪录, 要知影一个资料表的 Constraint 你可以执行 SQL 内建的 sp_helpconstraint , 在 QA 执行 sp_helpconstraint Products 接下来删除 FK_Products_Suppliers 这个 Foreign Key Alter Table Products Drop Constraint FK_Products_Suppliers 再来新增一笔纪录于 Products 资料表, SupplierId 使用 50 是因为它并没有对映到 Suppliers 资料表中的记录 Insert Into Products (ProductName,SupplierId,CategoryId) values ("Test Product","50","1") 现在我们再执行头前的查询, 只是将 Inner Join 改为 Left Outer Join Select ProductId, ProductName, Suppliers.SupplierId From Products Left Outer Join Suppliers Products.Suppliers = Suppliers.SupplierId 比较一下两种 Join 方式的查询结果, 你应该就会知影其中的差别! 再来看看 Right Outer Join, 请新增下底这笔记录 Insert Into Suppliers (CompanyName) values ("LearnASP") 现在请使用 Right Out Join 来作查询, 比较看看查询的结果和 Inner Join 有什么不同! 寻找不相符纪录 这里我们来看看如何使用 Out Join 来找不相符纪录, 可能是有子纪录却没有父纪录或是颠倒过来 Select Suppliers.CompanyName From Products Right Join Suppliers On Products.SupplierId = Suppliers.SupplierId Where Products.SupplierId is Null 执行结果你会找到一笔资料为 LearnASP, 该笔供货商资料存在, 但基本上已经没有产品是来自这个供货商, 想象一下如果不用 Outer Join 你要怎么以一个 SQL 指令完成同一查询结果! 知道 Outer Join 的好用了吧! 再执行 Select Products.ProductName From Products Left Join Suppliers On Products.SupplierId = Suppliers.SupplierId Where Suppliers.SupplierId is Null 这个查询结果你会发现 Test Product 这项产品竟然找不到供货商的资料!

inner join on, left join on, right join on讲解(转载) 1.理论只要两个表的公共字段有匹配值，就将这两个表中的记录组合起来。个人理解：以一个共同的字段求两个表中符合要求的交集，并将每个表符合要求的记录以共同的字段为牵引合并起来。语法FROM table1 INNER JOIN table2 ON table1 . field1 compopr table2 . field2INNER JOIN 操作包含以下部分：部分说明table1, table2要组合其中的记录的表的名称。field1，field2要联接的字段的名称。如果它们不是数字，则这些字段的数据类型必须相同，并且包含同类数据，但是，它们不必具有相同的名称。compopr任何关系比较运算符：“=”、“<”、“>”、“<=”、“>=”或者“<>”。说明可以在任何 FROM 子句中使用 INNER JOIN 操作。这是最常用的联接类型。只要两个表的公共字段上存在相匹配的值，Inner 联接就会组合这些表中的记录。可以将 INNER JOIN 用于 Departments 及 Employees 表，以选择出每个部门的所有雇员。而要选择所有部分（即使某些部门中并没有被分配雇员）或者所有雇员（即使某些雇员没有分配到任何部门），则可以通过 LEFT JOIN 或者 RIGHT JOIN 操作来创建外部联接。如果试图联接包含备注或 OLE 对象数据的字段，将发生错误。可以联接任何两个相似类型的数字字段。例如，可以联接自动编号和长整型字段，因为它们均是相似类型。然而，不能联接单精度型和双精度型类型字段。下例展示了如何通过 CategoryID 字段联接 Categories 和 Procts 表：SELECT , ProctNameFROM Categories INNER JOIN ProctsON Categories.CategoryID = Procts.CategoryID;在前面的示例中，CategoryID 是被联接字段，但是它不包含在查询输出中，因为它不包含在 SELECT 语句中。若要包含被联接字段，请在 SELECT 语句中包含该字段名，在本例中是指 Categories.CategoryID。也可以在 JOIN 语句中链接多个 ON 子句，请使用如下语法：SELECT fieldsFROM table1 INNER JOIN table2ON table1.field1 compopr table2.field1 ANDON table1.field2 compopr table2.field2) ORON table1.field3 compopr table2.field3)];也可以通过如下语法嵌套 JOIN 语句：SELECT fieldsFROM table1 INNER JOIN(table2 INNER JOIN [( ]table3[INNER JOIN [( ]tablex [INNER JOIN ...)] ON table3.field3 compopr tablex.fieldx)]ON table2.field2 compopr table3.field3) ON table1.field1 compopr table2.field2;LEFT JOIN 或 RIGHT JOIN 可以嵌套在 INNER JOIN 之中，但是 INNER JOIN 不能嵌套于 LEFT JOIN 或 RIGHT JOIN 之中。2.操作实例表A记录如下：aIDaNum1a200501112a200501123a200501134a200501145a20050115表B记录如下:bIDbName1 2006032401、22006032402、32006032403、42006032404、82006032408、实验如下:1.left joinsql语句如下: select * from Aleft join B on A.aID = B.bID结果如下:aIDaNumbIDbName1 a20050111 1 2006032401、2 a20050112 22006032402、3 a20050113 32006032403、4 a20050114 42006032404、5 a20050115 NULLNULL（所影响的行数为 5 行）结果说明:left join是以A表的记录为基础的,A可以看成左表,B可以看成右表,left join是以左表为准的.换句话说,左表(A)的记录将会全部表示出来,而右表(B)只会显示符合搜索条件的记录(例子中为: A.aID = B.bID).B表记录不足的地方均为NULL.2.right joinsql语句如下: select * from Aright join B on A.aID = B.bID结果如下:aIDaNumbIDbName1 a20050111 1 2006032401、2 a20050112 22006032402、3 a20050113 32006032403、4 a20050114 42006032404、NULLNULL82006032408、（所影响的行数为 5 行）结果说明:仔细观察一下,就会发现,和left join的结果刚好相反,这次是以右表(B)为基础的,A表不足的地方用NULL填充.3.inner joinsql语句如下: select * from Ainnerjoin B on A.aID = B.bID结果如下:aIDaNumbIDbName1 a20050111 1 2006032401、2 a20050112 22006032402、3 a20050113 32006032403、4 a20050114 42006032404、结果说明:很明显,这里只显示出了 A.aID = B.bID的记录.这说明inner join并不以谁为基础,它只显示符合条件的记录.

Want to improve your English？Come and join us！ A lecture on“English learning ”is to be held in our school hall from 2:00 to 4:00 next Tuesday afternoon.The lecture will share his learning experience with us.In addition，he will introduc...想提高你的英语吗？快来加入我们吧！一个“英语学习”是被关押在我们学校的礼堂从下星期二下午2:00到4:00讲座。讲座将与我们分享他的学习经验。此外，他将介绍…

join表示参加某一团体、组织、机构，并作为其中一员（如：入党、入团、入会、参军等）e.g.He joined the Labour Party/this company in 1999.他1999年加入了工党/这家公司。join in: to take part in an activity 参加(活动)e.g.We all joined in the singing.我们大家一起唱歌。另外：join也有to take part in an activity的意思但join后接的名词似乎更加抽象e.g.Come on in and join the fun!快进来一起完吧！enter for 是报名参加的意思。（enter这个词有登记的意思）e.g.He entered himself for the exam. attend:正式用词，一般用于指参加会议、出席典礼或招待会等，也可以指上学、听课、听演讲或讲座等He did not attend the meeting yesterday. 昨天他没有参加会议。

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join和 join in 二者都有“参加”的意思，但用法有所不同。join多指参加某组织，成为其中的一个成员。而join in指参加活动。take part in=join intake part in指参加群众性活动、会议等，往往指参加者持有积极的态度，起一份作用。join in通常指参加某种活动，尤其指和其他人一起参加某项活动。这两者一般可以互。attend常指参加或出席正式的活动或场合，如婚礼，会议等。

join,join in,take part in和attend的用法比较 (take part 只有加in 的时候才能跟宾语,不单独用）这几个词或短语都有“参加”的意思,但用法不同.一 ,join有两个用法：(1)指加入某个党派,团体组织等,成为其成员之一,意为：“参军、入团、入党”等.如：When did your brother join the army?你哥哥什么时候参军的?She joined the Young Pioneers.她加入了少先队.(2)和某人一道做某事,其结构为：join sb.In (doing) sth.,根据上下文,in (doing) sth.也可以省去Will you join us in the discussion?你参加我们的讨论吗?He"ll join us in singing the song.他将和我们一道唱歌.We"re going to the East Lake Park on Sunday.Will you join us?我们打算星期天去东湖公园.你跟我们一道去好吗?二 ,join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：Come along,and join in the ball game.快,来参加球赛.Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?三 ,take part in 指参加会议或群众性活动等,着重说明句子主语参加该项活动并在活动中发挥作用.We"ll take part in social practice during the summer vacation.暑假期间我们将参加社会实践.We often take part in physical labor.我们经常参加体力劳动.take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.四 ,attend是正式用语,及物动词,指参加会议,婚礼,葬礼,典礼；去上课,上学,听报告等.句子的主语只是去听,去看,自己不一定起积极作用.如：He"ll attend an important meeting tomorrow.他明天要参加一个重要的会议.I attended his lecture.我听了他的讲课

"Attend" 和 "take part in" 都表示参加某个活动或事件，但是它们的用法略有不同。"Attend" 通常用于指出某人参加了一个正式的活动或会议，如 "I will attend the conference next week"（我下周会参加会议）。"Take part in" 则更广泛地用于描述参加任何类型的活动，包括比赛、游戏、聚会等等，如 "I will take part in the charity run this weekend"（我这个周末会参加慈善跑）。因此，"attend" 更加正式和专业，而 "take part in" 则更加通用和灵活

这几个词或短语都有“参加”的意思，但用法不同。 一 ，join有两个用法： (1)指加入某个党派，团体组织等，成为其成员之一，意为：“参军、入团、入党”等。如： When did your brother join the army? 你哥哥什么时候参军的？ She joined the Young Pioneers. 她加入了少先队。 (2)和某人一道做某事，其结构为：join sb. in (doing) sth.，根据上下文，in (doing) sth. 也可以省去 Will you join us in the discussion? 你参加我们的讨论吗？ He"ll join us in singing the song. 他将和我们一道唱歌。 We"re going to the East Lake Park on Sunday. Will you join us? 我们打算星期天去东湖公园。你跟我们一道去好吗？ 二 ， join in多指参加小规模的活动如“球赛、游戏”等，常用于日常口语。如： Come along, and join in the ball game. 快，来参加球赛。 Why didn"t you join in the talk last night? 昨晚你为什么没参加座谈？ 三 ， take part in 指参加会议或群众性活动等，着重说明句子主语参加该项活动并在活动中发挥积极作用。 We"ll take part in social practice during the summer vacation. 暑假期间我们将参加社会实践。 We often take part in physical labor. 我们经常参加体力劳动。 take part in是惯用词组，part前一般不用冠词，但part前有形容词修饰时，要用不定冠词。 var script = document.createElement("script"); script.src = "http://static.pay.baidu.com/resource/baichuan/ns.js"; document.body.appendChild(script); void function(e,t){for(var n=t.getElementsByTagName("img"),a=+new Date,i=[],o=function(){this.removeEventListener&&this.removeEventListener("load",o,!1),i.push({img:this,time:+new Date})},s=0;s< n.length;s++)!function(){var e=n[s];e.addEventListener?!e.complete&&e.addEventListener("load",o,!1):e.attachEvent&&e.attachEvent("onreadystatechange",function(){"complete"==e.readyState&&o.call(e,o)})}();alog("speed.set",{fsItems:i,fs:a})}(window,document);2 Lincoln took an active part in polities and was strongly against slavery. 林肯积极参加政治活动，强烈反对奴隶制。 四 ，attend是正式用语，及物动词，指参加会议，婚礼，葬礼，典礼；去上课，上学，听报告等。句子的主语只是去听，去看，自己不一定起积极作用。如： He"ll attend an important meeting tomorrow. 他明天要参加一个重要的会议。 I attended his lecture. 我听了他的讲课。

hold没有“参加”意思。join一般是参加一种组织take part in 一般是活动，相当于join inattend后面接会议或课程等

这几个词或短语都有“参加”的意思，但用法不同。1)join有两个用法：(1)指加入某个党派，团体组织等，成为其成员之一，意为：“参军、入团、入党”等。如：①When did your brother join the army? 你哥哥什么时候参军的？②She joined the Young Pioneers. 她加入了少先队。(2)和某人一道做某事，其结构为：join sb. in (doing) sth.，根据上下文，in (doing) sth. 也可以省去。如：①Will you join us in the discussion? 你参加我们的讨论吗？②He"ll join us in singing the song. 他将和我们一道唱歌。③We"re going to the East Lake Park on Sunday. Will you join us?我们打算星期天去东湖公园。你跟我们一道去好吗？2)join in多指参加小规模的活动如“球赛、游戏”等，常用于日常口语。如：①Come along, and join in the ball game. 快，来参加球赛。②Why didn"t you join in the talk last night? 昨晚你为什么没参加座谈？3)take part in 指参加会议或群众性活动等，着重说明句子主语参加该项活动并在活动中发挥作用。如：①We"ll take part in social practice during the summer vacation.暑假期间我们将参加社会实践。②We often take part in physical labour. 我们经常参加体力劳动。【注意】take part in是惯用词组，part前一般不用冠词，但part前有形容词修饰时，要用不定冠词。如：①Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动，强烈反对奴隶制。4)attend是正式用语，及物动词，指参加会议，婚礼，葬礼，典礼；去上课，上学，听报告等。句子的主语只是去听，去看，自己不一定起积极作用。如：①He"ll attend an important meeting tomorrow.他明天要参加一个重要的会议。②I attended his lecture. 我听了他的讲课。

这几个词或短语都有“参加”的意思，但具体用法不同，需要多加注意。 一 ，join有两个用法： (1)指加入某个党派，团体组织等，成为其成员之一，意为：“参军、入团、入党”等。如： When did your brother join the army? 你哥哥什么时候参军的？ She joined the Young Pioneers. 她加入了少先队。 (2)和某人一道做某事，其结构为：join sb. in (doing) sth.，根据上下文，in (doing) sth. 也可以省去 Will you join us in the discussion? 你参加我们的讨论吗？ He"ll join us in singing the song. 他将和我们一道唱歌。 We"re going to the East Lake Park on Sunday. Will you join us? 我们打算星期天去东湖公园。你跟我们一道去好吗？ 二 ， join in多指参加小规模的活动如“球赛、游戏”等，常用于日常口语。如： Come along, and join in the ball game. 快，来参加球赛。 Why didn"t you join in the talk last night? 昨晚你为什么没参加座谈？ 三 ， take part in 指参加会议或群众性活动等，着重说明句子主语参加该项活动并在活动中发挥积极作用。 We"ll take part in social practice during the summer vacation. 暑假期间我们将参加社会实践。 We often take part in physical labor. 我们经常参加体力劳动。 take part in是惯用词组，part前一般不用冠词，但part前有形容词修饰时，要用不定冠词。 Lincoln took an active part in polities and was strongly against slavery. 林肯积极参加政治活动，强烈反对奴隶制。 四 ，attend是正式用语，及物动词，指参加会议，婚礼，葬礼，典礼；去上课，上学，听报告等。句子的主语只是去听，去看，自己不一定起积极作用。如： He"ll attend an important meeting tomorrow. 他明天要参加一个重要的会议。 I attended his lecture. 我听了他的讲课。

join和 join in 二者都有“参加”的意思，但用法有所不同。join多指参加某组织，成为其中的一个成员。而join in指参加活动。take part in=join intake part in指参加群众性活动、会议等，往往指参加者持有积极的态度，起一份作用join in通常指参加某种活动，尤其指和其他人一起参加某项活动这两者一般可以互换attend常指参加或出席正式的活动或场合，如婚礼，会议等join 例句：①I will never forget the day when I joined the Party. 我永远也忘不了入党的那一天。②Will you join us for dinner? 请你和我们一起吃饭好吗？take part in 例句：①Will you take part in the English evening? 同我们一起参加英语晚会好吗？②All the students took an active part in the thorough cleaning. 所有的学生都积极参加了大扫除。③We should take an active part in school activities. 我们应该积极参加学校的活动。join in 例句：①May I join in the game? 我可以参加这个比赛吗？②I hope you”ll all join in the discussion. 我希望你们大家都参加讨论。如果说"与某人一起做某事"、"和……在一起"则用join sb. in sth./doing sth. ①Would you join me in a walk? 和我一起去散步好吗？②Will you join us in a game of cards? 你愿意和我们一起玩牌吗？③I”ll join you in a few minutes. 我过几分钟将和你在一起。

一、意思不同1、attend：出席，参加。2、join in：加入。3、join：接合，联结。4、take part in：参与。二、用法不同1、attend：attend的本意是指心里经常性地想着〔做〕某事，现代英语中主要用于表示“参加(会议、集会、典礼、婚礼、追悼会等)”，有时也指上学、听课、听报告等。它强调的是动作，即听或看，为正式书面用语。2、join in：join的现在进行时可表示按计划安排或打算将要发生的动作，这时通常要和表示将来的时间状语连用。3、join：join作“连接”解时，其含义是把两个独立的客体通过机械性的方法(如黏合、捆绑、焊接)或者交通线路等连接起来，这客体可以是一般的物体(包括建筑物)，也可以是地域(包括居民点)等。4、take part in：take part in侧重参加某项群众性、集体性的事业、工作或活动，突出参加者在其中发挥一定的作用。三、侧重点不同1、attend：attend常指参加或出席正式的活动或场合，如婚礼，会议等。2、join in：join in指参加活动。3、join：join多指参加某组织，成为其中的一个成员。4、take part in：take part in指参加者持有积极的态度。

join,join in,take part in和attend的用法比较 (take part 只有加in 的时候才能跟宾语,不单独用）这几个词或短语都有“参加”的意思,但用法不同.一 ,join有两个用法：(1)指加入某个党派,团体组织等,成为其成员之一,意为：“参军、入团、入党”等.如：When did your brother join the army?你哥哥什么时候参军的?She joined the Young Pioneers.她加入了少先队.(2)和某人一道做某事,其结构为：join sb.In (doing) sth.,根据上下文,in (doing) sth.也可以省去Will you join us in the discussion?你参加我们的讨论吗?He"ll join us in singing the song.他将和我们一道唱歌.We"re going to the East Lake Park on Sunday.Will you join us?我们打算星期天去东湖公园.你跟我们一道去好吗?二 ,join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：Come along,and join in the ball game.快,来参加球赛.Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?三 ,take part in 指参加会议或群众性活动等,着重说明句子主语参加该项活动并在活动中发挥作用.We"ll take part in social practice during the summer vacation.暑假期间我们将参加社会实践.We often take part in physical labor.我们经常参加体力劳动.take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.四 ,attend是正式用语,及物动词,指参加会议,婚礼,葬礼,典礼；去上课,上学,听报告等.句子的主语只是去听,去看,自己不一定起积极作用.如：He"ll attend an important meeting tomorrow.他明天要参加一个重要的会议.I attended his lecture.我听了他的讲课

take part in意思：参加attend、join in、join、take part in的区别：含义不同、用法不同、侧重点不同一、含义不同1、attendv. 出席；照料；注意；专心于2、join in加入3、joinv. 连接；加入；参与；和...一起4、take part in参加二、用法不同1、attendattend的本意是指心里经常性地想着〔做〕某事，现代英语中主要用于表示“参加(会议、集会、典礼、婚礼、追悼会等)”，有时也指上学、听课、听报告等。它强调的是动作，即听或看，为正式书面用语。attend作“专心，注意”解时，多指对书本、图表、课业、命令、事物、事件等的注意。其后常接to。He had to attend a wedding.他要参加一个婚礼。2、join in说参加某种活动用join in，如说“与其人一起做某事”，则用join sb insth./doing sth.。join in多指参加小规模的活动如“球赛、游戏”等，常用于日常口语。They are going to join in the singing.他们将参加唱歌。3、joinjoin作“连接”解时，其含义是把两个独立的客体通过机械性的方法(如黏合、捆绑、焊接)或者交通线路等连接起来，这客体可以是一般的物体(包括建筑物)，也可以是地域(包括居民点)等。join所表示的“连接”的特点在于其客体仍然不同程度地保留其独立性，即其个体形象尚存。The island is joined to the mainland by a bridge.岛上有座桥与大陆相连。4、take part intake part in参加(群众性活动、会议等)，往往指参加者持积极态度，起一份作用。take part in是惯用词组，part前一般不用冠词，但part前有形容词修饰时，要用不定冠词。She went to the party in her silk dress and pumps.她穿着绸的连衫裙和浅口轻便鞋参加宴会。三、侧重点不同1、attend作动词含“参加，加入”之意，attend侧重参加或出席会议或学术活动等。可作“参加”解，attend主要指“到场”或“出席”会议、宴会、典礼、仪式等。2、join injoin in意思是“参加某项运动或活动”，例如参加讨论、游行、罢工等。3、join作动词含“参加，加入”之意，join普通用词，指加入党派、团体或游戏活动等。可作“参加”解，join指参加某团体或组织成为其中一员或参加活动，是非正式用语。4、take part in含“参加，加入”之意，take part in侧重参加某项群众性、集体性的事业、工作或活动，突出参加者在其中发挥一定的作用。可作“参加”解，take part in指参加一项工作，在其中分担一部分，也指参加活动并积极工作。

1. join 的主要用法如下：　　(1) 表示参加或加入某团体、党派、组织等，并成为其中的一个成员。如：　　join the Party 入党 join the League 入团　　　注：join 是终止性动词，不能与时间段状语连用。如：　　他入党 10 年了。　　误：He has joined the Party for 10 years.　　正：He has been in the Party for 10 years.　　(2) 表示与某人在一起或伴随某人做某事，通常用 join sb 或 join sb in (doing) sth。如：　　You go ahead. I"ll join you shortly. 你们先开始,我一会就来(一起干)。　　　注：若表示直接参加某项活动(即不具体说出与某人在一起)，以上各句式中可以不出现 sb。如：　　I joined in rowing. 我参加一起划船。　　　2. attend 表示“出席”、“参加”，主要用于参加会议等。如：　　attend a meeting 参加会议 attend a lecture 参加演讲会　　　　注：这样用的 attend 主要指参加去听演讲或去听报告等，而不是自己做演讲或作报告等。　　3. take part in 的主要用法：　　(1) 表示参加某项工作或事业，并在其中起一定作用。如：　　take part in the sports meet 参加运动会　　　　注：有时也用于参加某一活动，此时的 take part in可与 join in 换用。如：　　He took part in the discussion. 他参加了讨论会。　　(2) 表示参加会议(可与 attend 互换)。如：　　Did you take part in [attend] the meeting yesterday? 你参加了昨天的会议吗?　

"Attend"、"join in"、"join"和"take part in"都与参加活动或事件有关，但它们的意义和上下文有所不同。"Attend"意味着出席活动或聚会。它意味着你在场，但不一定参与活动。例如，"我明天会参加会议"意味着你会在会议上亲自出席。"Join in"和"join"都意味着积极参与活动或事件。"Join in"通常意味着活动已经开始，而你要加入已经在参与活动的其他人。例如，"我能加入这个游戏吗？"意味着你要积极参与正在进行的游戏。"Join"也可以以类似的方式使用，但它也可以表示成为一个团体或组织的成员。例如，"我想加入这个俱乐部"意味着你要成为俱乐部的成员。"Take part in"也意味着积极参与，但它强调你积极参与活动或事件。例如，"我想参与这个项目"意味着你要积极为这个项目做出贡献。"attend"意味着物理上的出席，而"join in"和"join"意味着积极参与。"Take part in"强调你积极参与活动或事件

join/ join in/ take part in/attend这三个词组在汉语中都表示“参加”，但在英语使用中是有区别的：(1)join通常指参加某种固定的组织、团队、军队等，强调成为其中一员。He joined the party in 1927.他1927年入党。(2)join sb. (in) doing sth.“和某人一起干某事”。Why not join us in buying Susan gift?为什么不和我们一起去给苏珊买礼物呢？(3)join in表示“参加某项活动”时，和take part in 可换用，但前者侧重娱乐、欣赏，而后者更侧重身体力行，参加在其中。例：She has never joined/ taken part in such an interesting game.她从未参加过这么有趣的游戏。(4)take part in 指参加各种活动，包括文娱、体育、比赛、斗争、罢工等。如：Are you going to take part in/ join in the discussion?你要参加讨论吗？(5)这几组词都是瞬间动词（终止性动词），用于完成时的句子时不能跟延续的时间状语连用。如：He has joined the league for five years. (×)He has been a league member for five years. (√)他入团已经有5年了。(6)attend原意指出席，即出席会议：attend the meeting

join和 join in 二者都有“参加”的意思，但用法有所不同。 join多指参加某组织，成为其中的一个成员。而join in指参加活动。take part in=join in take part in指参加群众性活动、会议等,往往指参加者持有积极的态度，起一份作用join in通常指参加某种活动，尤其指和其他人一起参加某项活动这两者一般可以互换attend常指参加或出席正式的活动或场合，如婚礼，会议等join 例句：①I will never forget the day when I joined the Party.我永远也忘不了入党的那一天。 ②Will you join us for dinner?请你和我们一起吃饭好吗？take part in 例句：①Will you take part in the English evening?同我们一起参加英语晚会好吗？ ②All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除。 ③We should take an active part in school activities.我们应该积极参加学校的活动。 join in 例句：①May I join in the game?我可以参加这个比赛吗？ ②I hope you”ll all join in the discussion.我希望你们大家都参加讨论。 如果说"与某人一起做某事"、"和……在一起"则用join sb. in sth./doing sth.。例句： ①Would you join me in a walk?和我一起去散步好吗？ ②Will you join us in a game of cards?你愿意和我们一起玩牌吗？ ③I”ll join you in a few minutes.我过几分钟将和你在一起

join后加组织 表示加入某个团体，组织 join the army参军take part in 参加+活动 attend 强调 出席参加 比如校运会 学生是take part in 而校长是 attend出席参加 并不是真的去比赛

答：join,ue80bjoin in和take part in 1)加入某党派、某组织或某社会团体,用join,不可用join in.如：①He will never forget the day when he joined the Party.他永远也忘不了他入党的那一天.②His brother joined the army three years ago.他哥哥是三年前参军的.join还可解释为“连接”.如：①The railway joined the two cities.铁路把两个城市连接起来了.②The two clauses are joined by a conjunction.两个分句由一个连词连接起来.2)说参加某种活动用join in,如说“与其人一起做某事”,则用join sb.in sth./ doing sth..如：①May I join in the game?我可以参加这个游戏吗?②Come and join us in the discussion.来和我们一起讨论吧!③We are having supper now.ue80bWould you like to join us?我们正在吃晚饭,你也来和我们一起吃好吗?join in多指参加小规模的活动如“球赛、游戏”等,常用于日常口语.如：①Come along,and join in the ball game.快,来参加球赛.②Why didn"t you join in the talk last night?昨晚你为什么没参加座谈?3)take part in参加(群众性活动、会议等),往往指参加者持积极态度．起一份作用.如：①A great number of students took part in May 4 Movement.大批学生参加了五四运动.②We are going to have an English evening.Do you want to take part?我们准备举办一个英语晚会,你想参加吗?③How many of you are going to take part?你们多少人准备参加?④All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除.【注意】take part in是惯用词组,part前一般不用冠词,但part前有形容词修饰时,要用不定冠词.如：Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动,强烈反对奴隶制.enjoy--get pleasure from;take delight in.“享受...之乐趣；乐于”.例如：I"ve enjoyed talking to you about old times.我很高兴曾经和你叙旧.like(vt.vi.)--be fond of;have a taste for; find satisfactory or agreeable.“喜欢；喜爱；爱好” 例如：Do you like fish?你喜欢鱼吗?I like to read in bed but I don"t like having meals in bed.我喜欢躺在床上看书,但我不喜欢在床上吃饭.at the end of“在……末端（尽头）；在……末（底）”可表示时间,也可表示地点.后面可以跟名词或相当于名词的词.在句中作时间状语,可以放在句子开头,也可以放在句子末尾.例如：There is a post office at the end of the road.在路的尽头有一家邮局.At the end of last week,we had a class meeting.到上个星期末,我们开了一次班会.at last=in the end=finally“最后；终于”,后面不接任何单词,在句中作时间状语,一般放在句子开头.例如：At last/Finally,they won the football match.他们终于赢了这场足球比赛.We walked three hours.At last/In the end,we got to the park.我们走了三个小时.最后我们终于到达了公园.及物动词 vt.1.出席,参加He did not attend the meeting yesterday.昨天他没有参加会议.2.上(大学等),前往The school was attended almost entirely by local children.上这个学校读书的几乎全是当地的孩子.3.照料;护理;侍候There was no one to attend him but Tina.除了蒂娜,再无人照顾他了.4.伴随,带有5.陪同,护送不及物动词 vi.1.出席,参加[(+at)]2.照料,处理[(+to)]I"ll attend to the matter.我来处理此事.3.护理;侍候[(+on/upon)]4.注意,倾听;致力(于)[(+to)]She didn"t attend to what I was saying.她并不注意听我所说的话.

　　join和 join in 二者都有“参加”的意思，但用法有所不同。　　join多指参加某组织，成为其中的一个成员。而join in指参加活动。　　take part in=join in　　take part in指参加群众性活动、会议等,往往指参加者持有积极的态度，起一份作用　　join in通常指参加某种活动，尤其指和其他人一起参加某项活动　　这两者一般可以互换　　attend常指参加或出席正式的活动或场合，如婚礼，会议等　　join 例句：①I will never forget the day when I joined the Party.我永远也忘不了入党的那一天。　　②Will you join us for dinner?请你和我们一起吃饭好吗？　　take part in 例句：①Will you take part in the English evening?同我们一起参加英语晚会好吗？　　②All the students took an active part in the thorough cleaning.所有的学生都积极参加了大扫除。　　③We should take an active part in school activities.我们应该积极参加学校的活动。　　join in 例句：①May I join in the game?我可以参加这个比赛吗？　　②I hope you”ll all join in the discussion.我希望你们大家都参加讨论。　　如果说"与某人一起做某事"、"和……在一起"则用join sb. in sth./doing sth.。例句：　　①Would you join me in a walk?和我一起去散步好吗？　　②Will you join us in a game of cards?你愿意和我们一起玩牌吗？　　③I”ll join you in a few minutes.我过几分钟将和你在一起

这几个词或短语都有“参加”的意思，但用法不同。1)join有两个用法：(1)指加入某个党派，团体组织等，成为其成员之一，意为：“参军、入团、入党”等。如：①When did your brother join the army? 你哥哥什么时候参军的？②She joined the Young Pioneers. 她加入了少先队。(2)和某人一道做某事，其结构为：join sb. in (doing) sth.，根据上下文，in (doing) sth. 也可以省去。如：①Will you join us in the discussion? 你参加我们的讨论吗？②He"ll join us in singing the song. 他将和我们一道唱歌。③We"re going to the East Lake Park on Sunday. Will you join us?我们打算星期天去东湖公园。你跟我们一道去好吗？2)join in多指参加小规模的活动如“球赛、游戏”等，常用于日常口语。如：①Come along, and join in the ball game. 快，来参加球赛。②Why didn"t you join in the talk last night? 昨晚你为什么没参加座谈？3)take part in 指参加会议或群众性活动等，着重说明句子主语参加该项活动并在活动中发挥作用。如：①We"ll take part in social practice during the summer vacation.暑假期间我们将参加社会实践。②We often take part in physical labour. 我们经常参加体力劳动。【注意】take part in是惯用词组，part前一般不用冠词，但part前有形容词修饰时，要用不定冠词。如：①Lincoln took an active part in polities and was strongly against slavery.林肯积极参加政治活动，强烈反对奴隶制。4)attend是正式用语，及物动词，指参加会议，婚礼，葬礼，典礼；去上课，上学，听报告等。句子的主语只是去听，去看，自己不一定起积极作用。如：①He"ll attend an important meeting tomorrow.他明天要参加一个重要的会议。②I attended his lecture. 我听了他的讲课。