1. 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 caused by batteries must be solved

57．According to the passage, all of the following are true except　　　　　　 .

　　　 A．moods can have an effect on people’s feelings

　　　 B．aerobic exercise can help people get rid of the bad moods.

　　　 C．scientists have provided people with many tranquilizers

　　　 D．swimming, or running is an effective cure for a bad mood

答案　 53.D　 54.B　 55.B　 56.A　 57.A

Passage 39

(江苏省启东中学2007高考最后冲刺练习A篇)

A Battery’s Worst Nightmare (噩梦)

Portable electronics that can be carried about easily are only as good as their batteries 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 laptop or mobile phone, you just fill up and go.

The engine-about the size of a ten-cent coin-starts with a combustion chamber (燃烧室) that burns hydrogen (氢) . Its tiny parts are etched onto silicon wafers (硅片) in the same manner that computer parts are imprinted onto integrated circuits (集成电路). 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(效率). Tiny engine parts don’t always behave like their scaled-up parts of the first engine. Something between the parts can slow down the works, according to Columbia University professor Luc Frechette, 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 at 10 percent efficiency -that is, 10 times better than batteries operate. Frechette says that a complete system, with all parts of place and working, will be set up in the next couple of years, but commercial models aren’t like until at least the end of the next ten years.

56．Which of the following best describes the organization of the this passage?

　　　 A．An exercise and its importance are explained.

　　　 B．A problem is examined and solutions are given.

　　　 C．Two different views of a problem are presented.

　　　 D．Recent developments in medicine are described.

55．The phrase “feel out of sorts”, could be best replaced by　　　　　　 .

　　　 A．put things in order　 B．are in a bad mood

　　　 C．search for tranquilizers　　 D．want a mood - raiser

54．It can be inferred from the passage that　　　　　　 .

　　　 A．when one is in a bad mood, he or she may not work very well

　　　 B．the best way to overcome a bad mood is to talk to oneself

　　　 C．some drugs are more effective than physical exercises

　　　 D．taking drugs is at risk of being poisonous

53．What is the main subject of the passage?

　　　 A．How to beat a bad mood B．How to talk bad moods out

　　　 C．How to do physical exercises　 D．How to do aerobic exercises

44．Interviews discover children like to send messages instead of　　　　　 .

　　　 A．calling each other　　　　　 B．writing to each other

　　　 C．playing games online　　　 D．greeting each other

答案　 41.C　 42.C　 43.D　 44.B

Passage 38

(吉林省实验中学2007届高三第四次模拟考试D篇)

Moods, say the experts, are feelings that tend to become fixed, influencing one’s outlook for hours, days or even weeks. That’s great if your mood is a pleasant one, but a problem if you are sad, anxious, angry or simply lonely.

Perhaps the best way to deal with such moods is to talk them out; sometimes, though, there is no one to listen. Modern pharmacology(药理学)offers a lot of tranquilizers(镇静剂). What many people don’t realize, however, is that scientists have discovered the effectiveness of several non – drug methods to set you loose from an unwanted mood. These can be just as useful as drugs, and have the added benefit of being nonpoisonous So next time you feel out of sorts, don’t head for the drug – store but try the following methods.

Of all the mood – altering self – help techniques, aerobic exercise(有氧运动)seems to be the most efficient cure for a bad mood. “If you could keep up the exercise you’d be in high spirits,” says Kathryn Lance, author of Running for Health and Beauty.

Researchers have explained biochemical an various other changes that make exercise compare favorable to drugs as a mood raiser. Physical work such as housework, however, does little. The key is aerobic exercise -running, cycling, walking, swimming or other repetitive and sustained activities that increase the heart rate, increase blood circulation and improve the body’s use of oxygen. Do some of the activities for at least 20 minutes a session three to five times a week.

43．The underlined word “eavesdrop” means　　　　　 .

　　　 A．join in actively　　　　 B．interrupt rudely

　　　 C．watch carefully　　　　 D．listen secretly

42．Which of the following statements is NOT　 true according to the passage?

　　　 A．People worry about the harm to the kids’ health by using mobile phone.

　　　 B．Teenagers want to have their own secret.

　　　 D．Teenagers like to send messages to each other

41．The story of Lucy is told to show us　　　　　 .

　　　 A．British parents always meet their children’s needs.

　　　 B．British kids have good relationship with their parents.

　　　 C．how British parents accept the truth of teenagers owning a mobile phone.

　　　 D．why every child gets a mobile phone as a birthday present in UK