摘要:3. B.固定搭配not only-but - 意思是“不但--而且-- .所以答案是B.

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阅读理解

   These are useful to man in three important ways:they supply us with wood and other products,they give us shade,and they help to prevent droughts and floods. Unfortunately,man has not realized that the third of these services is the most important.Eager to make money from trees,man has cut them down in a large number.And besides, man is usually too careless to plant and look after mew trees,so the forests slowly disappear.This does not only mean that man will have fewer trees.The results are even more serious:for where there are trees,their roots break up soil ,allowing the rain to sink in;and also bind soilndline, thus preventing it from being washed away. And where there are no trees,the rain falls on hard ground and flows away,causing floods and carrying away the rich top soil. With the top soil gone,nothing remains but worthless desert.

(1)

The most important service of to man is ______.

  A.to help him to make money

  B.to give him shade and cool

  C.to help him to prevent droughts and floods

  D.to give him wood and other products

[  ]

(2)

In many places forests slowly disappear because ______.

  A.many trees have been cut down

  B.man has not paid enough attention to planting trees

  C.new trees have been cut down

  D.all the above

[  ]

(3)

Land becomes desert after all trees are cut down because ______.

  A.no trees bind soil

  B.there is too much rain falling on the ground

  C.rain can cause floods and carry away the rich top soil

  D.all the above

[  ]

(4)

The underlined words “bind soil” in the passage “______”in Chinese.

  A.干燥土壤

B.湿润土壤

c.疏松土壤

D.固定土壤

[  ]

(5)

The writer tries to let us know ______.

  A.the importance of trees to man

  B.the usage of wood

  C.the function of tree roots

  D.the close relation between trees and top soil

[  ]
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阅读理解

Ask three people to look out the same window at a busy street corner and tell you what they see. Chances are you will receive three different answers. Each person sees the same scene(场景), but each perceives(察觉)something different about it.

   Perceiving goes on in our minds. Of the three people who look out the window, one may say that he sees a policeman giving a motorist a ticket(罚单). Another may say that he sees a rush-hour traffic jam at the intersection. The third may tell you that he sees a woman trying to cross the street with four children in tow(拉着). For perception(感知) is the mind’s interpretation of what the senses—in this case our eyes—tell us.

   Many psychologists(心理学家) today are working to try to determine just how a person experiences or perceives the world around him. Using a scientific approach, these psychologists set up experiments in which they can control all of the factors. By measuring and charting the results of many experiments, they are trying to find out what makes different people perceive totally different things about the same scene.

1.Perceiving is an action that takes place _____.

A.in our eyes

B.only when we think very hard about something

C.only under the direction of a psychologist

D.in every person’s mind

2. People perceive different things about the same scene because ____.

A.they see different things. 

B.they can not agree about things

C.some have better eyesight

D.none of these

3. Psychologists study perception by _____.

A.setting up many experiments. 

B.asking each other what they see.

C.looking out of windows.

D.Studying people’s eyes.

4. The best title for this article is _____.

A.How We See

B.Learning About Our Minds Through Science

C.What Psychologists Perceive

D.How To Become An Experimental Psychologist

 

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