47.How can birds sense the coming of a storm?　　　　　　　　　　　　　　　　　　　　　　

　　　 A.By feeling a drop in air temperature.

　　　 B.By noticing the change of wind directions.

　　　 C.By feeling a drop in air pressure.

　　　 D.By notieing the movements of other animals.

46.There will be a storm if birds　　　　　 .　　　　　　　　　　　　　　　　　　　　　　　　　　

　　　 A.make more noise than usual　　　　　　 　　　　 B.fly in different directions

　　　e down from tall trees　　　　　　　　 　　　　 D.share a piece of bread

45.The word“indicators”in paragraph I probably means　　　　 .　　　　　　　　　　　　　

　　　 A.maps　　　　　　　　 　　 B.services　　　　　　　　　　 C.signs　　　　　　　　　 　　 D.stations

70. Which of the following agrees with the writer's idea?

　　 A. The training methods work better for the old.

　　 B. People should use the brain to stop it from ageing.

　　 C. The training of the brain should start at an early age.

　　 D.　 It's necessary to take part in as many activities as possible.

答案　 67.A　 68.C　 69.D　 70.B

Passage 56

(07·陕西B篇)

When people want to know about the wcather, they usually go to there radios, TVs, pewspapers, or to the Internet. However, you can also find many weather signs among wildlife, because of their highly developed senses. Drops in air pressure(压力) produce an effect on small animals in many ways. Mice and deer are good weather indicators. People who spend a lot of time outdoors have observed that, before a storm, field mice come out of their holes and run around, Deer leave high ground and come down from the mountains.

　　　 Birds are especially good weather indicators because they also show the effect of a prcssure drop in many ways. For example, some birds become irritable(急躁的)and qusrrelsome and will fight over a picce of bread. Other birds chirp(叽叽喳喳)and sing just before a storm. It seems they know they won’t get snother chance for an bour on two. Birds also seek safe placcs before a storm, You will sometimes see birds settling in trees or gathering together on a wire close to a building. Pre-storm low pressure makes the are so thin that birds have difficulty flying.

　　　 It is unusual to see many birds flying overhead in the summertime, rather than during the periods in the spring or autumn. Watch for other weather signs if you see this. If they fly in the wrong direction,they may be flying abead of a storm.

　　　 By paying closer attention to some important signs in nature, we can become better prepared for any kind of weather.

69. What can we learn from the text?

　　 A. Practice makes a quick mind.

　　 B. Brain research started ten years ago.

　　 C. Dr. Merzenich is a scientist in computer,

　　 D. People believed nothing could stop the brain slowing down.

68. By saying "the brain at any age is highly plastic ", the writer probably means the brain can be______.

　　 A. used　　 　　　　 B. mastered　　 　　 C. developed　　 　　　　 D. researched

67. Dr. Merzenich’s training method mainly depends on ________.

A. speech training　　 　　　　　　　　　　　 B. computer languages

　 C. the activities one joins in　　 　　　　　 D. the information being dealt with

71.By saying “The only way to cure is to conquer.”Dr. Mootee suggests that an OCD sufferer　 .

　 A.has to be an extraordinary person

B.must cure his illness by himself

C.must overcome many physical illnesses

D.should have a right attitude towards the problem

答案　 68.B　 69.B　 70.C　 71.D

Passage 55

(07·四川D篇)

Sorry to say, our brains naturally start slowing down at the Cruelty young age of 30. It used to be thought that this couldn't be helped, but new studies show that people of any age can train their brains to work faster. "Your brain is a learning machine," says University of California scientist Dr. Michael Merzenich. Given the right tools, we can train our brains to act like they did when we were younger. All that's required is the practice designed just for the purpose: a few exercises for the mind.

Merzenich has developed a computer-based training method to speed up the process(过程)　　　　　　　　　　　　 in which the brain deals with information (). Since much of the data we receive comes through speech, the Brain Fitness Program works with language and hearing to better speed and accuracy (准确性).

Over the course of training, the program starts asking you to distinguish (辨别) sounds (between "dog" and "bog", for example) at an increasingly faster speed. It's a bit like tennis instructor, says Merzenich, hitting balls at you ~faster and faster to keep you challenged(受到挑战). You may start out slow, but before long you're pretty quick.

The biggest finding in brain research in the last ten years is that the brain at any age is highly plastic. If you ask your brain to learn, it will learn. And it may even speed up while in the process.

To keep your brain young and plastic you can do one of a million new activities that challenge and excite you: playing table tennis or bridge, doing crossword puzzles, learning a language.... "When it comes to preventing ageing, you really do 'use it or lose it' ," says Barbara Sahakian, professor at Cambridge University.

70.Dr. Mootee’s treating lechnique is based ont eh idea that　　 .

　 A.everyong has something different

B.people can put up with their problems

C.people can chag their way of thinking and action

D.people tend to repeat their obsessive actions

69.According to the passage, a person suffering from OCD　　 .

　 A.reduces his/her anxiety by taking drugs

B.gets into unwanted hagbits to relieve stress

C.has unwanted thoughts about habits

D.has unwanted thoughts because of illness