跟踪导练（一）5

选词填空

用方框里单词的正确形式填空，使其句意完整。每空一词，有两个词是多余的。

rust form react electricity facility aim

float liquid lecture contract boil flame

1. Be careful when using ____ equipment.

2. If you add too much ____ ， the mixture will not be thick enough.

3. I saw some fallen leaves ____ in the river.

4. Youd better keep the iron away from the water to avoid ____ .

5. What was your mothers ____ to the news？

6. The ____ were growing higher and higher.

7. Professor Wang will give us two ____ tomorrow morning.

8. Ice ____ at the temperature of 0℃.

9. Its a very high office building with modern ____ .

10. Do you want a（n） ____ egg for breakfast？

句子翻译

1. 知道金属如何与不同物质反应是很重要的。（react with）

2. 将来人类能住到月球上吗？现在下结论过早。（too … to）

3. 他为自己没有放弃而感到骄傲。（be proud of）

4. 他过去住在巴黎，但现在住在北京。（used to）

5. 你应当在4点前完成家庭作业。（be supposed to）

阅读理解

When I was seven years old， my family made me an ant farm. First， we put clean sand in a thin glass box. Then we waited for the ants to arrive.

After the ants were in the glass farm， they started to make tunnels （隧道）. I was amazed that each one knew exactly what to do. Each had its own job.

On the fifth day a tragedy happened. I put my face so close to the glass farm that I knocked it over.

All the tunnels fell down. Although the ants remained alive after their earthquake， one by one they began to die. I was scared as I watched them give up building their tunnels to carry the bodies to a corner of the farm.

My mother said that the ants were dying of sadness. They simply could not stand that their tunnels were gone.

Although much time has passed， I still think of that ant farm. Mom had hoped it would teach me about the natural world， but it taught me much more.

Over the years， I came to realize the importance of teamwork. Working together， the ants were able to make an amazing world for themselves. I also learned that they should be admired for their hard word.

But there was an even larger lesson that I did not realize until recently： adversity （苦难） is a natural part of life， and must be accepted. Unlike the ants， we cannot give up when we are sad. We have to realize that if a tunnel is gone， we must build another.

Giving up， I say， is not a good choice.

1. What did the writers family do for him when he was seven？

A. They built a farm of ants. B. They bought a few ants.

C. They caught a lot of ants. D. They found an ant city.

2. Which is the correct order of the events in the story？

a. All the tunnels fell down.

b. The ants died one by one.

c. The ants got into the glass box.

d. The ants began making tunnels.

A. a-b-c-d B. a-c-d-b

C. c-d-a-b D. c-a-d-b

3. What did the writer come to realize a few years later？

A. Working together will waste time.

B. Teamwork is important.

C. He cant accept adversity.

D. Working alone is amazing.

4. What should be the best title for the passage？

A. Ants Fear Adversity B. My Family and Ant

C. Giving up in Adversity D. A Lesson from Ants