北境漫步-
At the beginning of last century, medical scientists made an interesting discovery that we are built of not just of flesh and blood but also of time. They were able to show that we all have a “body clock” __31__ us, which controls the __32__ and fall of our body energies, making us different from one day from the next.
The __33__ of the “body clock” should not be too surprising since the lives of most living things are controlled by the 24-hour night-and-day cycle(周期). We feel __34__and fall asleep at night and become __35__ and energetic during the day. If the 24-hour cycle is disturbed, most people will experience unpleasant feeling. For example, people who are not__36__ to working at night can find that lack of sleep causes them to perform badly at work..
Besides the __37__ cycle of sleeping and waking, we also have other cycles which __38__ longer than one day. Most of us would __39__ that we feel good on some days and not so good on __40__; sometimes our ideas seem to flow and at other times, they just do not exist.
31. A. inside B. around C. between D. on
32. A. movement B. supply C. use D. rise
33.A. invention B. problem C. story D. idea
34.A. hungry B. tired C. dreamy D. happy
35.A. sad B. excited C. lively D. sleepy
36. A. made B. allowed C. expected D. used
37.A. daily B. weekly C. monthly D. yearly
38.A. live B. last C. stay D. keep
39. A. agree B. believe C. realize D. understand
40.A. other B. the other C. others D. another
Japan has a new craze: the virtual pet” Tamagocchi. The new object of consumer desire is the latest in high-tech — an electronic bird creature, the size of an egg that has been sold everywhere and is now only available on the streets at more than 20 times its original (原来的)price of 11,980 yen or $16.
You can feed it, stroke (抚摸) it, carry it in your pocket and even take it to the bathroom—all with a push of a button. But be aware of that if you don"t take care of your Tamagocchi—Japanese word for “lovely egg”— your pet will die before your eyes and before its time.
The Tamagocchi starts life as a bird-like image on the screen of an egg-shaped key-ring device. It changes from a chick to a fully grown adult in around 10 days. However, the owner must feed, clean and calm the digital(数字的) creature by pushing the proper buttons to prevent it from dying from neglect(忽视). The owner may choose to feed the creature digital sweets and enjoy its sound of delight by pressing buttons in response to the creature"s movements.
41. What"s the meaning of “ the latest in high-tech” according to the passage?
A. A bird creature fed by a child.
B. A bird creature controlled by electricity.
C. A bird creature controlled by electron.
D. A bird creature fed with sweets.
42. What is the present price of Tamagocchi?
A. About 180 dollars B. 60 dollars C. About 320 dollars D. 1,200 dollars
43. Which of the following statements is NOT true about Tamagochi?
A. It can grow up in around 10 days.
B. It has to be fed, cleaned and calmed in case it might die.
C. It can produce a sound of delight.
D. It can be bought everywhere now.
44. What is the best title for the passage?
A. A New Type of Pet.
B. Take Good Care of the Tamagocchi.
C. The Popularity of the Tamagocchi in Japan.
D. A Newly Found Bird—the Tamagocchi.
Some scientists say that animals in the ocean are increasingly threatened(威胁)by noise pollution caused by human beings..
The noise that affects（影响） sea creatures comes from a number of human activities. It is caused mainly by industrial underwater explosions（爆炸）, ocean drilling, and ship engines. Such noises are added to natural sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.
Decibels (分贝 measured in water are different those measure on land. A noise of one hundred and twenty decibels on land causes pain to human ears. In water, a decibels level of one hundred and ninety-five would have the same effect.
Some scientists have proposed（提议）setting a noise limit of one hundred and twenty decibels in oceans. They have observed that noises at that level can frighten and confuse whales（鲸鱼）.
A team of American and Canadian scientists discovered that louder noises can seriously injure some animals. The research team found that powerful underwater explosion were causing whales in the area to lose their hearing. This seriously affected the whales" ability to exchange information and find their way. Some of the whales even died. The explosion had caused their ears to bleed（流血）and become infected（感染）.
Many researchers whose work depends on ocean sounds object to(反对) to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial and scientific research.
Scientists do not know how much and what kind of noises are harmful to ocean animals. However, many scientists suspect(认为，怀疑) that noise is a greater danger than they believed. They want to prevent noises from harming creatures in the ocean.
52.According to the passage , which of the following is increasingly dangerous to sea creatures?
A. The man-made noises.
B. The noises made by themselves.
C. The sound of earthquakes.
D. The sound of the ice- breaking.
53. Which of the following is discussed in the third paragraph?
A. Different places with different types of noises.
B. The very human ears sensitive to all types of noises.
C. The same noise measured differently on land and in the ocean.
D. The animal"s reaction(反应) to noises.
54. As to the influence (影响)of noises on whales, which of the following statements is true?
A. They are deaf to noises.
B. Noises at a certain level may hurt them.
C. They are easily confused by noises.
D. Noises will limit their ability to reproduce.
55. According to the passage, what will scientists most probably do in the future?
A. They will try their best to decrease(减小)noise.
B. They will work hard to cut down noise pollution.
C. They will study the effect of different noises.
D. They will protect animals from harmful noises.
第一个答案 ADDBC DABAC
第二个答案 CCDA
第三个答案 CACBD
绝对正确．
里论外几-
As we know, it is not easy to build a satellite. Building a traditional normally takes years. The costs can be as high as $250 million or more. Most members of the design reams have worked in the field for a long time. They hold advanced degrees in math, science, or engineering.
But things are changing. High costs, unusual educational requirements and long start-up times are no longer an obstacle to space exploration. The scientists at Stanford University have developed a new type of tiny inexpensive earth-orbiting satellites that go from ideas to launch （发射）in a year.
So far, college student have built and launched several cube-shaped satellites, or CubeSats. At least 15 more are ready to go. Those already in orbit （轨道）take pictures, collect information and send it back to the earth, just as regular satellites do.
But you might not even have to wait until you get to college to start designing and building your own satellite. A new program called KatySat aims to get teenagers to take part. Once kids understand what satellites can do, says Ben Yuan, an engineer at Lockheed Martin in Menlo Park, Calif, the kinds of applications they"ll come up with may be countless.
“We"d like to put this technology（技术）in your hands,” he tells kids. “We"re going to teach you how to operate a satellite. Then we want to turn it over to you as a sandbox for you to play in. We want you to take the technology into new directions that we haven"t thought of yet.”
Education isn"t the only goal of CubeSats. Because these tiny, technology-filled boxes are relatively inexpensive to build and can be put together quickly, they"re perfect for testing new technologies that might one day be used on major space tasks.
Nowadays, college and high school students are getting a chance to learn what it takes to explore in space. Someday- perhaps a lot sooner than you imagine- you might get to design, build and launch your own satellite. If you do, you"re sure to have fun. And you might also get crazy about science for life.
1. Compared with the traditional ones, the new satellites ____.
A. need long start-up times B. are low-cost and small-sized
C. are very hard to operate D. collect more information in orbit
2. What does the underlined word “obstacle” probably mean?
A. An aim to achieve in the near future.
B. An imagination that kids usually have.
C. Something dangerous to terrify people.
D. Something difficult that stands in the way.
3. According to the passage, which of the following is true?
A. CubeSats could possibly cause pollution in space.
B. A few kids will send applications for the project.
C. Scientists designed CubeSats for kids to play with.
D. Students can"t design satellites without college education.
4. What"s the purpose of the author writing the passage?
A. To show that high technology brings a big change in kid"s life.
B. To show that kids lead the space research into a new direction.
C. To tell us that satellite technology can also be learned by kids.
D. To tell us that kids must study hard to learn satellite technology.
答案: 1.B 2.D 3.A 4.C
我不懂运营-
Japan has a new craze: the virtual pet” Tamagocchi. The new object of consumer desire is the latest in high-tech — an electronic bird creature, the size of an egg that has been sold everywhere and is now only available on the streets at more than 20 times its original (原来的)price of 11,980 yen or $16.
You can feed it, stroke (抚摸) it, carry it in your pocket and even take it to the bathroom—all with a push of a button. But be aware of that if you don"t take care of your Tamagocchi—Japanese word for “lovely egg”— your pet will die before your eyes and before its time.
The Tamagocchi starts life as a bird-like image on the screen of an egg-shaped key-ring device. It changes from a chick to a fully grown adult in around 10 days. However, the owner must feed, clean and calm the digital(数字的) creature by pushing the proper buttons to prevent it from dying from neglect(忽视). The owner may choose to feed the creature digital sweets and enjoy its sound of delight by pressing buttons in response to the creature"s movements.
41. What"s the meaning of “ the latest in high-tech” according to the passage?
A. A bird creature fed by a child.
B. A bird creature controlled by electricity.
C. A bird creature controlled by electron.
D. A bird creature fed with sweets.
42. What is the present price of Tamagocchi?
A. About 180 dollars B. 60 dollars C. About 320 dollars D. 1,200 dollars
43. Which of the following statements is NOT true about Tamagochi?
A. It can grow up in around 10 days.
B. It has to be fed, cleaned and calmed in case it might die.
C. It can produce a sound of delight.
D. It can be bought everywhere now.
44. What is the best title for the passage?
A. A New Type of Pet.
B. Take Good Care of the Tamagocchi.
C. The Popularity of the Tamagocchi in Japan.
D. A Newly Found Bird—the Tamagocchi.
答案: 1.B 2.D 3.A 4.C
康康map-
gteat