Ⅰ. Read Section B and underline the following language chunks. After that, translate and use them to complete the sentences. 阅读 Section B 并将下列语块在课本上画出来，翻译这些语块，然后选用语块完成下列句子。
1. by mistake
2. make sb. happy
3. for a long time
4. put...on...
5. think of
6. divide...into...
7. at the same time
8. stop sb. from doing sth.
9. dream of
10. not only...but also...
11. the number of
12. look up to sb.
13. encourage sb. to do sth.
14. achieve one's dream
15. In order to , you should study hard and get into a good university.
16. The street is so wide that many people can walk .
17. When he was a child, he becoming an excellent teacher.
18. Lily is warm - hearted, hard - working. We all like her very much.
19. As a teacher, I often my students be active in class.
20. — Do you know the students in your school?
— About 2,000.
21. Tom's parents try to him playing computer games every day.

Ⅰ .1. 错误地 2. 使某人高兴 3. 长期 4. 把……放在上面 5. 考虑 6. 把……分成…… 7. 同时 8. 阻止某人做某事 9. 梦想 10. 不但……而且…… 11. ……的数量 12. 钦佩(仰慕)某人 13. 鼓励某人做某事 14. 实现某人的梦想 15. achieve your dream 16. at the same time 17. dreamed of 18. not only, but also 19. encourage, to 20. the number of 21. stop, from

Ⅱ. Rewrite the following sentences as required.
按要求转换下列句子，每空一词。
1. They use pens to write. (改为被动语态)
Pens writing.
2. She was given a new coat by her mother. (改为主动语态)
Her mother a new coat.
3. This book was written by Lu Xun. (改为否定句)
This book by Lu Xun.
4. Potato chips were invented by mistake.(改为同义句)
Potato chips were invented .
5. He left the classroom after the bell rang. (改为同义句)
He the classroom the bell rang.

II . 1. are used for 2. gave her 3. wasn’t written 4. by accident 5. didn’t leave, until