2 . Complete the dialogue with the correct form of the words and phrases below.

downtown	jam	suit	greenhouse gases
public transport	complain	anger	get stuck in traffic

Martin: Good morning, Mary. How do you always manage to the office before me?
Mary: Morning, Martin. Well, I cycle so I don’t     1    .
Martin: Well, I don’t cycle but I do take     2    . It’s not quite as fast as cycling but it gets me     3     much quicker than if I take my car.
Mary: Public transport is also a good way to help reduce the level of     4     in our atmosphere. If more people take the bus and train, it would be better for us all.
Martin: I know so many people who     5     about traffic     6     and air pollution, but     7     cannot solve the problems.
Mary. That kind of attitude is common but I think more and more people are beginning to do something which     8     them and protect the environment.

6 . 词性转换
1. ________ vt. 帮助；援助→________ n．助手；助理→________ n．帮助
2. ________ vi.&vt. 抱怨；发牢骚→________ n．抱怨
3. ________ vt. 回答；回复　vi. 做出反应；回应→________ n. 反应；回答；回复
4. ________ vt. 任命；委派→________ n．任命；约定→________ adj. 约定的；指定的
5. ________ vt. 接替；取代；更换→________ n．取代
6. ________ vt. 选举；推选→________ n. 选举；推选；当选
7. ________ vt. 惊吓；使害怕　vi. 受惊吓→________ adj. 害怕的；对……感到惊慌或恐惧的→________ adj. 令人害怕的
8. ________ vt. 拒绝接受；不录用→________ n. 拒绝接受；否决
9. ________ vi.&vt. 退休；退职；退出→________ n. 退休→________ adj. 退休的
10. ________ adj. 精力充沛的；充满活力的→________ adv. 精力充沛地→________ n．精力

10 . “我以为我们可以成为朋友，”他抱怨道。（汉译英）