大学体验英语3 第三版 课后答案

Unit 1

4. Fill each of the blanks with an appropriate word.

I found a tree frog in my studio some months ago. I took it to my greenhouse , as I thought it would be a better place for the frog.But it came back and insisted taking the residence in the studio. Why? I couldn’t get an idea. Then, after five months of being together, we seemed to be able to communicate with each other. It may sound wired , but I did feel I came to understand what it wanted me to do. The frog came to me probably attracted by the humming tone of my

computer, which sounded like that of other tree frogs, or with a message to tell me that frogs were dying around the world because of their sensitivity to the pollution and global climate change. As frogs are an“ indicator species”, what has happened to them may happen to us, if we sit back and do nothing. We must act now, or it would be too late.

六、

1.The

2. The stockbrokers Tuesday.

have estimated that there are

around one million animal and plant

and growing in the rainforests. 生物学家估计，有大约一百万的动物和植物物种生活在热带雨林增长。

4 在过去的十年美国的生活消费稳定的上涨。

growing company has ambitious plans to expand beyond national

software; let’s go and have a look.

电脑商店正在出售的音频软件;

into your eyes. 为了安全起见,你可以戴上你的墨镜避免阳光直射你的眼睛。

8. When the kitchen is finished, I’m going to

9. In a serious

10. She her hands around the mug of hot coffee to warm them.

她双手呈杯状捧起热咖啡来温暖它们。

七、Complete the following sentences with phrases or expressions from the passage. Change the form where necessary.

1the task will be finished ahead of schedule. 我没想到你会这么高效,

safety, you must keep all medicines away from children.

them.

当我们能够更好地了解这些新员工，我们将指派更适合任务给他们每个人。

4. This evening dress is rather expensive since it is made

这晚礼服是相当昂贵的，因为它是由手工制作。

5.In the World Cup, rival Argentina and qualify from the

“Group of Death” and

Unit2

3. Fill each of the blanks with an appropriate word.

It seems the young Albert Einstein was never exactly an ordinary child. When he was given a compass at the age of five, it ignited his inspiration . Not only was the young Albert passionately curious , he was also remarkably persistent and would not easily give up on a problem. Albert’s development was also stimulated by the company of intelligent adults such as an uncle of his who was an engineer and a medical student who was a friend of the family. Einstein was inspired to take up mathematics by Euclidean geometry. His true genius lay in his ability to express complex ideas in simple language. By the age of twenty-six Einstein had already produced his most famous work,