.Its tiny eyes_____the cabbage,_____the creature’s interest in the vegetable.
A.are fixed on,show B.are fixed upon,showing
C.fix on,showing D.fix upon,showing
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
A Battery’s Nightmare
Portable electronics that can be carried about easily are only as good as their batteries (電池) and, let’s face it, batteries aren’t very good, especially when compared with, say, petrol, which packs 100 times a battery’s energy into an equal space. That’s why a large group of mechanical engineers (centered at the Massachusetts Institute of Technology, but with partners at other universities and companies) are hard at work in an effort to replace batteries with a tiny engine that runs on fuel. Imagine a battery-free life! When the fuel runs out in your mobile phone, you just fill up and go.
The engine---about the size of a ten-cent coin---starts with a combustion chamber (燃燒室) that burns hydrogen. Its tiny parts are etched (蝕刻) onto silicon wafers (硅片) in the same manner that computer parts are etched onto integrated circuits (集成電路). The first engine is made up of five wafers. And since these wafers could be produced in much the same way as computer chips, they could probably be produced quite cheaply.
But the devil in all this nice detail is efficiency. Tiny engine parts don’t always behave like the bigger parts of the first engine. Something between the parts can slow down the works, according to Columbia University Professor LucFrechette, one of the engine’s designers. Extreme heat from the combustion chamber is also a problem, often leaking to other parts of the engine.
The scientists’ goal is to create an engine that will operate 10 times better than batteries operate. Frechette says that a complete system, with all parts in place and working, will be set up in the next couple of years, but commercial models aren’t likely until at least the end of the next ten years.
According to the passage, the title suggests that _______ .
A. batteries should be greatly improved
B. petrol will be used instead of batteries
C. the time of batteries will be gone forever
D. pollution problems caused by batteries must be solved
What’s the meaning of the underlined word “devil” in paragraph 3?
A. Problem B. Advantage C. Invention D. Technique
What can we infer from the passage?
A. The new invention doesn’t need any fuel.
B. The new engine has been produced in large quantities.
C. The new invention is much cheaper than the battery.
D. The new engine needs to be improved before it’s on sale.
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
For years scientists have been worried about the effects of air pollution on the earth’s natural conditions. Some believe the air inside many houses may be more dangerous than the air outside. It may be one hundred times worse.
Indoor air pollution can cause a person to feel tired, to suffer eye-pain, headache and other problems. Some pollutants( 污染 物) can cause breathing disorders, diseases of blood and even cancer, Most scientists agree that every modern house has some kind of indoor pollution. People began to notice the problem in the early 1970s. It is that when builders began making houses and offices they did not waste energy. To do this they built buildings that limited the flow of air between inside and outside. They also began using manmade building materials. These materials are now known to let out harmful gases. As the problem became more serious, scientists began searching for a way to deal with it. They discovered a natural pollution control system for building— green plants. Scientists do not really know how plants control air pollution. They believe that a plant’s leaves absorb or take in the pollutants. In exchange the plant lets out oxygen through its leaves and through its tiny organizations on its roots. Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square metres of space. Studies of different plants show that each absorbs different chemicals. So the most effective way to clean the air is to use different kinds of plants. Having green plants inside your house can make it a prettier and more healthy place.
Generally speaking, indoor air pollution may be more harmful than the air outside because ________.
A. the man - made building materials let out dangerous gases inside houses
B. there may be more harmful gases outside houses
C. the flow of air indoors is limited
D. indoor air pollution can make a person seriously ill
The most effective way to clean the air is to use different kinds of plants because________.
A. they may let out more oxygen which people need
B. they can absorb different kinds of the harmful indoor chemicals
C. they can take in all kinds of indoor pollutants
D. they can make your house prettier and more healthy
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科目:高中英語(yǔ) 來(lái)源: 題型:閱讀理解
Yesterday, after telling my brother, Rhys, and me to stop playing like wild animals, Mom went to take a bath. We were having a pillow fight when 36 one hit a vase. Mom 37 the loud crash. Wasting no time, she came 38 into the room. I was sure that she was going to shout at us, but instead she just knelt by the 39 and began to cry.
This made Rhys and me feel pretty 40 . We went over and put our arms around her, and she explained to us why she was so upset. In the pieces 41 a broken glass rose, one petal (花瓣)gone, which was given by Dad on their first wedding anniversary. Dad had said that if he ever forgot to bring flowers home 42 an anniversary in the future, Mom was to look at that one. It was like their love—it would last a 43 .
We began crying, and 44 to glue it. But Mom said that wouldn’t really fix it. 45 it had been broken, the 46 of the “l(fā)imited edition” had reduced. As Mom 47 began to pick up the mess, we tried everything we could think of to 48 her up, but even our best funny faces didn’t 49 . Tears kept coming down her cheeks. Everything was picked up. Seeing Mom going back to the bath, I 50 her and put both hands on her shoulders, saying, “All things can be 51 ,Mom. The only thing that cannot be broken is our 52 . It’s the only thing that can never be broken. ”
Mom hugged me very tightly and 53 smiled. After dinner that night, Mom glued the petal back onto the rose. Then she softly said, “My rose is truly unique. Its tiny damage reminds me of 54 more important:the realization that love 55 forever. ”
36. A. gradually B. suddenly
C. surprisingly D. immediately
37. A. caused B. witnessed
C. heard D. ignored
38. A. dressing B. shouting
C. flying D. crying
39. A. pieces B. vase C. pillow D. ground
40. A. disappointed B. angry
C. awful D. sensitive
41. A. grew B. lay C. stood D. existed
42. A. for B. in C. from D. by
43. A. decade B. year C. season D. lifetime
44. A. offered B. supported
C. pretended D. agreed
45. A. Just as B. In case
C. Now that D. Even though
46. A. price B. wealth C. value D. treasure
47. A. skillfully B. hopefully C. kindly D. slowly
48. A. cheer B. make C. light D. get
49. A. smile B. work C. show D. say
50. A. prevented B. stopped
C. kept D. followed
51. A. destroyed B. mended
C. improved D. broken
52. A. friendship B. honesty
C. love D. happiness
53. A. finally B. quickly
C. confidently D. immediately
54. A. anything B. something
C. nothing D. everything
55. A. changes B. appears C. lasts D. keeps
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科目:高中英語(yǔ) 來(lái)源:上海市松江二中2009-2010學(xué)年高二5月月考英語(yǔ)試題 題型:完型填空
Section B
Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need
A. agree B. suffer C. system D. notice AB. through
AC. dangerous AD. space BC. limited BD. absorbs CD. let out
For years scientist have been worried about the effects of air pollution on the earth’s natural conditions. Some believe the air inside many houses may be more 41 than the air outside. It may be one hundred times worse.
Indoor air pollution can cause a person to feel tired, to 42 eye-pain, headache and other problems. Some pollutants can cause breathing disorders, diseases of blood and even cancer. Most scientists 43 that every modern house has some kind of indoor pollution. People began to 44 the problem in the early 1970s, when it was that builders began making houses and offices which did not waste energy. To do this they built buildings that 45 the flow of air between inside and outside. They also began using man-made building materials. These materials are now known to 46 harmful gases. As the problem became more serious, scientists began searching for a way to deal with it. They discovered a natural pollution control 47 for building green plants. Scientist do not really know how plants control air pollution. They believe that a plant’s leaves take in the pollutants. In exchange the plant produces oxygen 48 its leaves and through its tiny organizations on its roots. Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square meters of space. Studies of different plants show that each 49 different chemicals. So the most effective way to clean the air is to use different kinds of plants. Having green plants inside your house can make it a prettier and healthier place.
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科目:高中英語(yǔ) 來(lái)源:09-10年福建省高一上學(xué)期期末考試 題型:單項(xiàng)填空
.Its tiny eyes_____the cabbage,_____the creature’s interest in the vegetable.
A.are fixed on,show B.are fixed upon,showing
C.fix on,showing D.fix upon,showing
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