1 . Dark thoughts about your physical appearance can ________ over you all the time like a rain cloud. （用适当的词填空）

3 . You'd better not r________ to your material when giving a speech. （根据首字母单词拼写）

4 . Although she didn’t mention any name , everyone knew who she was ______.

A．referring to	B．talking to
C．turning to	D．responding to

5 .
1. He felt ________(失望的) when he heard his low mark in the exam.
2. Her ________(态度) towards learning Chinese has changed a lot.
3. My daughters ________(欣赏) my telling stories every night.
4. A shark can smell blood at a ________(距离) of half of a kilometre.
5. He found a knife in an ________(被遗弃的) house.
6. F_______(幸运地), he was admitted into the university after hard work.
7. At the end of the game players traditionally ________(交换) shirts with each other.
8. We need to keep the ________(平衡) of nature.
9. I intend to take full ________(优势) of this trip to buy the things we need.
10. It’s ________(正常的) to feel nervous before an exam.
11. He told Wang Lin addiction to drug is sure to ________(影响) his health.
12. Smog is a ________(混合物) of smoke and fog.
13. The old couple decided to ________(收养) a boy and a girl though they had three of their own.
14. I can’t ________(忍受) any more. I’m going to run away.
15. He has broken two world records in one day, which is quite a(n) ________(成就).