根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Without plants, people could not live. We eat plants. ____56____  And we need plants for another reason: we need them because they are beautiful.

___57____  Imagine no flowers with their sweet smell, their beautiful colors and their lovely shapes. Imagine, when the wind blows, we’re not able to hear the leaves in the trees or watch the branches swing from side to side.

___58____  That is why we have parks full of trees and flowers. That is why people always like houses with room for some grass or a garden.

Do you talk to your plants?  ___59____  Peter Tompking and Christopher Bird wrote a book called The Secret Life Of Plants, telling of an experiment in which two seeds were planted in different places. While the plants were growing, one plant was given love and hopeful ideas. The other plant was given only hopeless ideas.  ___60____  Under the earth it had more and longer roots; above the earth, it had a thicker stem and more leaves. While the other one nearly stopped growing.

E. We take in oxygen that plants make.

F. Everywhere people need beautiful plants.

G. Imagine a world with no plants.

根据句意及首字母或汉语提示，写出各句中所缺单词的正确形式。（每空一词，共10分）

1.As you go up a mountain, you have to overcome the earth’s g           which pulls you down.

2.The m             leaf has become the most important symbol of Canada since the national flag was introduced in 1965.

3.The little girl was t          at the thought of being left alone at home and cried.

4.He went to the United States in the 1980s and s                down there.

5.Don’t leave matches or cigarettes on the table w              reach of little children.

6.How quickly a fuel burns depends on how well it is mixed with              (氧气) or air.

7.The policemen were sent to find the black box because it showed why the plane had           

(坠毁).

8.The idea                 (存在) only in the minds of us young people today.

9.This problem is only                 (稍微) difficult so I can work out.

10.They claimed that when they were               (包围) by the gang they acted in self-defense.

It is natural that children are curious (好奇的) about the world around them. For example, they want to know how their hearts beat. They want to know why the ocean water tastes salty.

　　As children grow up, they become curious about different kinds of things. When they are babies, they are interested in the parts of their bodies and in the smiles of their mothers. They become interested in the physical world around them: the plants, the animals, the sky. Later, they become interested in the things that people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career (生涯、职业) in science.

　　Scientists spend their lives trying to find out about the world．Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e. g. physics, chemistry .

　　These scientists have already discovered a lot about our world．For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too . So your brain sends a signal to the heart. The signal means that the muscles need more nutrition and oxygen. Then the heart beats fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.

　　Of course, scientists cannot answer all of our questions. If we ask, “Why does the ocean water taste salty” scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask , “What happens to the salt in the ocean? The ocean does not get saltier every year.” Scientists are not sure about the answer to this question.

　　We know a lot about our world, but there are still many answers that we do not have, and we are curious.

1.According to the passage, which of the following statements is true?

　 A. People are curious in the same way.

　 B. People in different countries are interested in different things.

　 C. Men and women are curious about different things.

　 D. People of different ages are interested in different things

2.Scientists who work with the biological sciences study____.

A. the earth , the oceans and the sky                 B. man-made things

C. plants and animals               D. ocean water

3.A rock cracks _____.

A. in wet regions                                     B. in dry regions

C. at very high or very low temperatures     D. when salty water falls in

4. People are always curious because ____.

A. they cannot explain many things B. they know nothing about the world

C. they know little about the world  D. they want to be scientists

一．根据首字母或中文完成句子：

1.At the museum, visitors are requested not to touch the e_______________.

2.The government yesterday ____(宣布) to the media that they would create some new jobs.

3.The IT i___________ is playing an important role in the development of economy.

4.Though caught in a snowstorm, the pilot g _________ the plane to a safe landing.

5.Three fourths of the earth’s s ________ is covered with water, our earth is an ocean planet.

6.I feel really happy to be e _________ in this famous university to teach advanced English.

7.He was too ____________ (没经验) for the job. He worked here no more than three days .

8.Many young soldiers helped to r ___________ people from the fire of the hotel. One of them was killed and some were injured.

9.Some students in our class are worried about their p _______ and want many people to like them.

10.He suddenly experienced a f ____ of shame when his name was mentioned at the meeting.

11.My computer c ______ suddenly last night and all of my documents I was working on got lost.

12.The child was t __________ at the piano his parents sent to him on his birthday.

13.This machine is used to ___________ (监测) a patient’s pulse.

14.The decision was c ________ by all the members.

15.He seems to be honest and trusted, but in r ________ he often tells lies.

16.He has an e __________ talent for music.

17.I think that we have many o __________ of meeting interesting people on the train when traveling.

18.Matter has three states . For example, water is ___________(液体).

19.A number of parents have v _______ concern about their children’s safety.

20.She d ________ a talk on philosophy during her visit to her mother school.

根据句意及首字母或汉语提示，写出各句中所缺单词的正确形式。（每空一词，共10分）
【小题1】As you go up a mountain, you have to overcome the earth’s g           which pulls you down.
【小题2】The m             leaf has become the most important symbol of Canada since the national flag was introduced in 1965.
【小题3】The little girl was t          at the thought of being left alone at home and cried.
【小题4】He went to the United States in the 1980s and s                down there.
【小题5】Don’t leave matches or cigarettes on the table w              reach of little children.
【小题6】How quickly a fuel burns depends on how well it is mixed with              (氧气) or air.
【小题7】The policemen were sent to find the black box because it showed why the plane had           
(坠毁).
【小题8】The idea                 (存在) only in the minds of us young people today.
【小题9】This problem is only                 (稍微) difficult so I can work out.
【小题10】They claimed that when they were               (包围) by the gang they acted in self-defense.