3 . 根据语境，选择下框中的单词或短语，必要时用正确的形式填空。框中有两个单词为多余单词。

sharp       hesitate       precious       otherwise       earn a living recycle       select       assist       carry on       indeed

1. During the gold rush, ________, some Chinese opened up shops and restaurants in Chinatown in San Francisco.
2. As the first woman ________ to make a trip into space, Tereshkova felt lucky and proud.
3. Despite the difficult situation, Dr Bethune did whatever he could ________ the Chinese people.
4. Astronauts have to use tape to stick everything down while working in space because everything would float off ________.
5. In space, astronauts collect all dirty water so that it can ________ for later use.
6. Many Americans complained about the ________ increase in the cost of health care and health insurance recently.
7. After ________ for several moments, Gary finally went into the expensive tailor’s shop and asked to see the suit in the window.
8. To a person nothing is ________ than their life.

4 . They turned their horses’ heads homewards, and reached the Chase at about eleven o'clock, dead tired and ________（几乎心碎了）. （根据汉语提示完成句子）

6 . 根据句意内容，从方框中选出正确的选项，完成下列句子。

A. folding     B. attempt     C. otherwise     D. generous     E. have yet to

1. You’d better go now, ________ you’ll miss the train.
2. His first unsuccessful ________ didn’t stop him moving forward.
3. My deskmate is always ________ with his time when I turn to him for help.
4. Follow the instructions and you can make the shape of a fish by ________ the paper.
5. The details of the contract ________ be corrected and need to be fully discussed later.

7 . There are many factors that can contribute to a puffy face, but ________ (一般来说), weight gain in the face is caused by weight gain overall.   (根据汉语提示完成句子)

8 . 阅读并修改下列各句子，每句中只有一处错误，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
1. One reason was because he painted very slowly, and sometimes did not finish his work.
2. These smart homes will provide a more comfortable environment to live.
3. He discovered that in two particular streets the cholera outbreak was very severe that more than 500 people died in ten days.
4. I bought some books, five of them were English novels.
5. When you reach the other end of the bridge, I will be waited right there to show you the way.
6. Accompany by six strong bodyguards, the president appeared.
7. There is a growing tend to regard quality of life more highly than money.
8. I had to admit that it was entire my fault.
9. Of the two possible plans I am in the favor of the former one.
10. Be with friends and family plays a big part in experiencing happiness.