I never use plastics bag和I never used plastics bag两种句型哪种正确
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无敌小娟娟 共回答了22个问题
|采纳率90.9%- 第一种.如果动词是过去分词,你就要用I have never used plastic bags.(s 不加在plastic后,在bag后)
- 1年前
工238 共回答了13个问题
|采纳率- 第一句
由句意 :我从来不用塑料袋 得
应用一般现在时态。 - 1年前
flylei009 共回答了564个问题
|采纳率- 第一种,这是一般现在时的句子
- 1年前
zhang07140 共回答了85个问题
|采纳率- 语法上都没有错误, 只是在时态上不一样, 一个用了现在时, 一个用了过去时。
我从来不用塑料袋
我过去从来没用过塑料袋。呵呵 我s最后放错位置了 应该放在bag后 我也知道是第一种 但总觉得念起来没有used那么顺口 你英语成绩好吗??你说的是哪个s, 不是很明白你的问题plastic后的啊 加了s就是个错单词了plastics 也有“塑料, 塑料学”的意思。 在我看来... - 1年前
mgpig 共回答了4个问题
|采纳率- 都对//如果说差别, 前者是“我从来不用”, 有延续的意思, 以后也不会用。
后者“我从来没用过/从不曾用过”,这是有两种可能:1. 以后也不会用
2. 也许以后 会尝试。谢谢 你英语好像蛮好耶 你是老师吗?你过奖了! 我不是英语老师, 就是平时工作用的多了,稍有点感觉吧。那你是学生?我已经上班了:-)... - 1年前
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易于理解的回答,小女子给高分相谢~
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B acted as 这里act as是一个词组表示“担当”,“起.作用”
原句意思是“当一个条形铁块吸引其它铁片,它就起一个磁铁的作用,同时这用吸引作用被称为带磁性”
显然这里没有被动意味,故用主动时态.
D when heated=when it is heated 这里是when引导的一个时间状语从句.英语中在时间和条件状语从句中用一般现在时代替一般将来时.故这里用is.进行时态being heated表示动作正在进行即“正在被加热”,而题意是要说明一个条件,即“一旦被加热,木头会很快燃烧起来产生火焰.”
A let 请参阅以下[考查热点9]
主动形式表示被动含义的用法归纳:
主动语态表示被动含义是学习语态的难点,也是高考考查的热点.现归纳如下:
[考查热点1]
感官动词常用作系动词(如taste,feel,smell ,sound,look,smell等),常用主动形式表示被动含义.例如:
How sweet the music sounds!
The flowers smell sweet.
That sounds very reasonable.
[考查热点2]
某些动词如cut,drive,pay,write,read,sell,keep,prove,weigh,number,drink,wear,pay,wash,open,cost,lock,last等常用主动形式表被动含义,这时常和well,easily,perfectly,badly,slowly等方式副词连用,这种用法多用来说明主语的特征、性质或所处的状态等.例如:
The pen writes quite smoothly.
The book sells well.
[考查热点3] 在too…to结构中常用不定式的主动形式表示被动含义.例如:
It's too good a chance to miss.
[考查热点4]
有些及物动词如cook,burn,print,prepare等有时会用进行时态表示被动含义.例如:
The potatoes are cooking.
The dictionary is printing.
[考查热点5]
在“need/want/require+V-ing”及“bear/stand+V-ing”结构中用动名词的主动形式表示被动含义,这时相当于不定式的被动式.例如:
My car needs/wants/requires repairing.=My car needs/wants/requires to be repaired.
[考查热点6] 在There be句型中,something,anything,nothing等不定代词以及名词之后的不定式往往用主动形式表示被动含义.例如:
There is nothing to do — I'm bored.
There are six letters to write tonight.
[考查热点7] be+to blame/to
seek等结构具有的特点是作表语的不定式与句子的主语有逻辑上的动宾关系,因而用主动形式表被动含义.例如:
A better way is to seek.
Nobody is to blame for the accident.
[考查热点8]
当不定式所修饰的名词或代词是及物动词的直接宾语,而间接宾语是不定式的逻辑主语时,可以用不定式的主动式代替不定式的被动式.例如:
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[考查热点9]
当不定式所修饰的名词或代词是动词的宾语,而句子的主语也是不定式的逻辑主语时,可以用不定式的主动式代替不定式的被动式.若不定式与句子主语或宾语不存在逻辑上的主谓关系,只与所修饰的词有动宾关系时,即只有动作的承受者,没有动作的执行者时,不定式应用被动式.例如:
I have six letters to write today.(write的逻辑主语为I)
This letter is to be written today.
We have a house to let.(let 的宾语是 house)
[考查热点10]
在句型“主语+be+形容词+todo”中,当不定式用在作表语的形容词后作状语,而句中的主语又是不定式的逻辑宾语时,通常用不定式的主动形式表示被动含义.这类形容词有:easy,difficult,heavy,hard,nice,bitter,dangerous,light,interesting.important,expensive,fit,comfortable,pleasant,impossible等.例如:
The picture is pleasant to look at.
The chair looks rather hard,but in fact it is very comfortable to sit on.
注意:当不定式中的动词是不及物动词时,要根据需要补充相应的介词.
[考查热点11]一些介词加具有动作意义的名词构成的介词短语常用来表示被动含义.如:on show/on exhibition,on sale,on fire,out of sight,in sight,under construction,in the charge of,in the posses sion of,under repair,under consideration,under development,under discussion等.例如:
The project is under construction.
His car is under repair.
[考查热点12] 有些不及物动词和词组只有主动形式,常视为用主动形式表被动含义.如:take place,happen,break out,belong to,come out,come about,go up,go out,grow up,consist of,add up to,come into being,come into use,give out,come true,run out,turn up等.例如:
His whole school education added up to no more than one year.
The fire also destroyed cars which belonged to people who worked in the building.
[考查热点13] 形容词worth后用V-ing形式表被动,不可接不定式,但可用be worthy to be done或be worthy of being done形式.例如:
These places of interest are well worth visiting.
These places of interest are worthy of being visited.
=These places of interest are worthy to be visited.
=These places of interest are worthy of a visit.
欢迎探讨词法语法问题.1年前查看全部
- 英语翻译Plastics are polymers,molecules formed of many identical
英语翻译
Plastics are polymers,molecules formed of many identical units bound to each other Iike pearls in a necklace.For a polvmer t0 be electricallY conductive it must”imitate”a metal-the electrons in the bonds must be freely mobile and not bound fast to the atoms.One condition for this is that the polymer consists of alternate single and double bonds,termed conjugates double bonds.Ployacetylene is the simplest possible conjugated polymer.It is obtained by polymerization of acety lene,shown to the left.
At the beginning of the 1970s Shirakawa was studying the polYmerisation of acetylene.in his reaction vessel polyacetylene appeared in the form of an unremarkable black powder.On one occasion a visiting researCher accidentallY added one thousand times more catalyst than usual.Imagine the researchers surprise When a beautiful silvery film formed on the surface of the liquid in the vessel.the obvious question was:”if the Plastic fiIm shines like a metal,can it conduct electricity,too?”
Although the polyacetylene film shone like Silver,it was not an electrical Conductor.CoUld it perhaps be modified in some way?In the mid-1970s the three Laureates began Co-operating to investigate this and results were quick to come.When they caUsed the films tO react with iodine vapour.The conductivity increased by as much as ten million times-a discovery that was eventually to give them a Nobel Prize in Chemistry.
By analogy With semiconductor technology one speaks of doping the polymer when it iS SUbjected to oxidation with iodine vapour.The more electrons are removed,the higher the degree of doping and the greater the conductivity.星星9191年前2
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华南路人甲 共回答了17个问题
|采纳率82.4%可以hi我,给你满意答案1年前查看全部
- A bag made of plastics is much more durable than_______made
A bag made of plastics is much more durable than_______made of paper.
A.one B.that C.the one D.that onepdslzf1年前1
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jun34125135 共回答了24个问题
|采纳率83.3%选a,A泛指,bcd特指,由题意应选个泛指的.1年前查看全部
- Now plastics can ___ steel in many ways of our life.
Now plastics can ___ steel in many ways of our life.
a.take place b.take the place of c.instead of d.be taken place大天使4XL1年前1
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在mm抽了一夜 共回答了15个问题
|采纳率93.3%选 B take the place of 代替
现在塑料能在我们生活的很多方便代替钢.
保证准确率~1年前查看全部
- 1.Modern plastics can ( )very high and very low temperatures
1.Modern plastics can ( )very high and very low temperatures.
A.stand b.hold c.carry d.support
请翻译句子,并作出讲解烟缸里的鱼鱼1年前1
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玲珑一颗心 共回答了17个问题
|采纳率100%A 这里stand作及物动词“经得起”解释.
现代的塑料能够经得起很高和很低的温度.1年前查看全部
- we use plastics ______ wood and metal now
we use plastics ______ wood and metal now
为什么选 in place of我爱丽1年前1
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当归1 共回答了12个问题
|采纳率100%取代.塑料取代了木质产品和金属产品1年前查看全部
- ________ of plastics, the machines are light in w
________ of plastics,the machines are light in weight. [ ]A.To make
B.Having made
C.Being made
D.Made是啥说啥1年前1
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pkeer20 共回答了15个问题
|采纳率86.7%D1年前查看全部
- 英语翻译Blow molding is the third largest plastics processing te
英语翻译
Blow molding is the third largest plastics processing technique worldwide and is generally recognized to be one of the fastest growing areas in the plastics industry[1].One of the essential steps which constitutes the blow molding cycle is the inflation of the parison.The entire process of parison inflation occurs in two successive stages,namely,free inflation followed by confined inflation.The parison inflation process is highly complex,involving the interaction of several process variables,such as the inflation pressure,material characteristics,parison thickness distribution,and parison temperature profile.
There have been quite a few reports in the existing literaturre on the simulation of parison inflation[2--9].Ryan and Dutta[3] made an analytical treatment of the free inflation of a viscoelastic parison by assuming a one-dimensional isothermal deformation.This simplified analyses cannot be used to predict realistic shapes of the parison during its inflation.
The finite element method (FEM) has been used to simulate the inflation of parison over the last decade[4--9].However,modeling blow molding inflation process with the FEM requires that many of the most difficult aspects of the FEM be addtessed in the analysis.These difficulties arise because of large strains,large deformations,nonlinear material behavior and so on during the inflation of parison.
In this paper,a mathematical model has been derived for simulating the parison free inflation in the plastics extrusion blow molding.In order to evaluate the predictive capabilities of the model,the instantaneous images of parison inflation within a mold epuipped with glass side windowa have been obtained by using a video capture technique.
1 Theoretical Analysis
Consider the free inflation of an isotropic and incompressible annular parison with an uniform radius and thickness,and length 2L in the initial state,as shown in Fig.1.The parison is assumed to be treated as a membrane (with thickness much less than any radius of curvature) so that any change in the deformation variables across the thickness may be neglected.Gravity and surface tension effects are neglected.Cylindrical polar coordinate system(r,r,x) is taken and all puantities are independent of r because of symmetry.Amaterial particle that locates at (r,r,x) during inflation is originally at (r,r,x).The ends of the parison are at x=0 and x=2L,and there is symmetry about the plane x=L.cwhsb1年前1
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口圭口牙 共回答了20个问题
|采纳率90%铸造打击并且一般地被认出是塑料工业[构成铸造周期的打击的十分重要的步骤的1].One是parison的通货膨胀.中的最快的日益增长区域之一在世界范围处理技术的第三大塑料parison通货膨胀的整个的过程在两个连续的阶段中发...1年前查看全部
- plastic和plastics区别
plastic和plastics区别
塑料的单词有2种写法,如题,如何分辨,有何区别
塑胶原料有限公司 这句该怎么翻译 用哪个词呢?
plastics ['plæstiks] n. 塑料;整形外科;外科修补术
. 展开《21世纪大英汉词典》
. 折叠《21世纪大英汉词典》
plastics ['plæstiks] n.【材料学】塑料adj.塑料的
回复1楼,plastic也有塑料的意思啊米奇爱1年前4
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11真的还是假的 共回答了17个问题
|采纳率88.2%在“塑胶原料有限公司”这个语境下,个人认为用plastics and rubber比较合适,翻译时,可以不翻原料两个字,因为塑胶本身就代表原料了.可以翻译成"XX Plastics & Rubber Co.,Ltd."
来看看一些原文网站的搜索结果吧:
Plastics & Rubber Weekly
Plastics and Rubber field
Plastics and Rubber Products Manufacturing
International Plastics and Rubber Trade Fair
我想这可能是一种通用说法吧,因为塑料的种类非常的多.另外,从中文的角度去辨别两个英文单词,不是一种很好的方法哦.1年前查看全部
- plastics是复数形式但用作单数的词,真的么?
lovepp05261年前3
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吹吧吹吧 共回答了21个问题
|采纳率90.5%你说的plastics不是plastic的复数,他是一个不可数名词,指塑胶业1年前查看全部
- As we know,plastics and chemicals will not_______ for hundre
As we know,plastics and chemicals will not_______ for hundreds of years.(appearance)翻译并回答.
hh军事迷1年前1
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蜗牛在三亚 共回答了21个问题
|采纳率66.7%As we know,plastics and chemicals will not__disappear_____ for hundreds of years
翻译为:正如我们所知道的,塑料和化学品数百年都不会消失的
这里需要动词,appearance的动词是appear出现,但是这里还需要变为否定,disappear消失1年前查看全部
- Ps :写上理由 1.______plastics,the washing machine is light in we
Ps :写上理由
1.______plastics,the washing machine is light in weight.
A.made of B.making at C.to making of D.To be made of
2.______from the hill,the town looks magnificent.
A.seeing B.having seen C.seen D.to see
3.______that we were late,we began to run.
A.knowing B.to know C.we knew D.as knowing
4.______for nearly seven years in African forest,he decided to return home.
A.worked B.working C.having worked D.being worked
5.______our football ream won in the 12th Asia Games made us very.happy.
A.if B.what C.whether D.thatwjflrq011年前1
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倾城温柔 共回答了22个问题
|采纳率77.3%1. ___A___plastics,the washing machine is light in weight.
A.made of B.making at C.to making of D. To be made of
选项应该和the washing machine 是主谓关系,所以选A
2. __C____from the hill,the town looks magnificent.
A.seeing B.having seen C.seen D.to see
主语是the town,和see这个词应该是被动的关系,所以选C
3. _A_____that we were late,we began to run.
A.knowing B.to know C.we knew D.as knowing
know发出这个动作的主语是we,独立主格,所以选ing形式.
4. __C____for nearly seven years in African forest,he decided to return home.
A.worked B.working C.having worked D.being worked
主句里decided是过去时,所以前面的从句应该是完成时,而且有标志词for,所以选C
5. ___D___our football ream won in the 12th Asia Games made us very.happy.
A.if B.what C.whether D.that
赢得足球比赛这件事总体做主语,先行词只能是that.所以选D1年前查看全部
大家在问
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- 2三氧化硫与氢氧化钠反映的方程式是什么?
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- 8have no choice do还是have no choice to do对?
- 9函数y=-x^2+(X的绝对值)的单调区间
- 10英语词组 看图 怎么翻译
- 11在变化磁场中有一静止导线,导线没有闭合.那么会产生感应电动势么?如果会,应该怎么计算呢?
- 12三线合一的证明方法
- 13读,《细米》一句话的感想
- 14现实生活中的问题,只有网友才能帮忙解决.(辨析题)
- 15乘法 如果两个数的乘积是1,那么我们称其中一个数是另一个数的( ).五分之一的倒数是()