2 . 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的符号（∧），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. The teacher made the request that we finished our homework at once.
2. If he adopted a proper attitude at that time, he would not have made the terrible mistake.
3. Among all the goods, I was interested in the cotton piece in particularly.
4. Growing up in the country, he is accustomed to get up early every day.
5. In the spite of all the problems, several players produced excellent performances.
6. Nowadays a great number of women are addicting to online shopping.
7. Once you get on a bad habit, you will find it hard to get rid of it.
8. The reason why he wants to sell his house is because he needs a lot of money for his operation.
9. With storm disasters happening so often, there is obvious that global warming has become a serious problem.
10. Smoking cigarettes, drinking alcohol or taking other drugs produce many harmful effect and have no real benefits.

3 . 单句改错
增加：在缺词处加一个漏字的符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意： 每处错误及其修改均仅限一词。
1. It was not until the war was over when he returned home.
2. I wish he has helped me when I was in trouble.
3. The books were all neatly in a place, carefully arranged.
4. It is suggested that enough money collected to fund the project.
5. Though tiring, Professor Wang still kept giving the students a lecture.
6. Doing some exercise every day contributes to keep you healthy.
7. Among the goods is Christmas trees, flowers, candles and toys.
8. If I am you, I wouldn’t answer the call.
9. Without any possession, he is having a hard time.
10. The singer sang a song called Don’t Cry, makes the audience on the spot burst into tears.

4 . 假定英语课上老师要求同桌之间交换修改句子，请你修改你同桌写的以下句子。每个句子都有一处错误，错误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(Λ)，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。
注意：每处错误及其修改均仅限一词
1. It seems amazed that at my age I am still fit enough to cycle 20 kilometers in an afternoon.
2. This means that after a while your body becomes accustomed to have nicotine in it.
3. It might help you to stop and strength your resolve.
4. There is no use crying over spilt milk.
5. It is the burning of more and more fossil fuels which has resulted in the increase in carbon dioxide.
6. There is a natural phenomenon in which scientists call the “greenhouse effect”.
7. When boiling rock erupts from a volcano and crashes back to earth, it is an absolute fantastic sight.
8. Linda acts as if she were the boss, order people around.
9. You may depend on that they will look after your daughter when you are away.
10. It is time that he goes to bed but he is still watching TV.