1 . Predators have been observed ________ (avoid) attacking brightly coloured species. (所给词的适当形式填空)

2 . We should try to ______ making the same mistake again.

A．delay

B．avoid

C．imagine

D．admit

3 . It often gets angry and will ________ anyone who goes close to it.

A．attract

B．attach

C．attack

D．avoid

4 . 单词拼写
1. 热心的 adj. ________
2. 信息 n._________
3. 指示，说明 n._________
4. 方法 n._________
5. 态度 n._________
6. 行为 n._________
7. 记述，描述 n._________
8. 使印象深刻v._________
9. 制度，体系 n._________
10. 消失v.________
11. 鼓励，激励 n._______
12. 精力充沛的adj.   ____
13. 紧张的，焦虑的adj. ________
14. 耐心的adj. ________
15. 严肃的adj. ________
16. 避开，避免v._________
17. 感激v._________
18. 承认v._________
19. 尊敬v&n.________
20. 正式的 adj. ________

5 .

A. avoid 　　　B. ban 　　　C. exchange 　　　D. affect

1. Canada will ______ smoking in all offices later this year.
2. The two businessmen planned to have a meeting in order to _______ ideas.
3. Your disagreement will not __________my decision.
4. The pilot took emergency action to_________ a disaster.