5. “may/might+have+过去分词”结构用来表示对过去的事情所作的推测。(“可能已经……了”)
6. “must+have+过去分词”结构用来表示对过去的事情所作的肯定判断。(“……一定已经……了吧”)
7. “should/ought to+have+过去分词”结构用来表示过去应做而未做的事， 含有自责或责备的语气。(“本来应该……的”)
8. “need not+have+过去分词”结构用来表示过去做了没有必要做的事。(“本来不必……的”)
练 习
1. After they had chose the books they wished to read, the instructor told them the principal points he wanted them to note.
2. When I reach at the end of a cigarette, my money has gone up in smoke.
3. The island has little vegetation(植被)， it scarcely raises above the surrounding sea.
4. In our school the teachers would leave most students go out early on Friday afternoons before football games.
5. Ours was the first group of swimmers who had dove into the new pool.
6. I will like to know where you were born.
7. I would like you read it again.
8. What will you like to do when you finish your course at Leeds?
9. I hope you can visit my country soon, because I’d to show you some lf. the beautiful places near my home.
10. My father mustn’t have said such a thing.
注 释
1. had chose → had chosen.
2. reach at → reach, reach是及物动词。
3. raises above → rises above, raise是及物动词， rise是不及物动词。
资料来源：网络 责任编辑：caihz