中考英语语法大全情动与完成精品教案

这是一份中考英语语法大全情动与完成精品教案，共24页。

①She must have gne thrugh a lt.
He must have visited the White Huse during his stay in the United States.
2. may have dne/ might have dne
① 表示对过去已发生行为的推测，意为“也许/或许已经（没有）„„”
② 一般用于肯定句或否定句中，不用于疑问句
③ 用might则表示语气更加不肯定
①Yu may have learnt the news. ②He may nt have heard his name called.
③Srry I’m late. I might have turned ff the alarm clck and gne back t sleep again.
might have dne
① 表示“本来可能„„，但实际上没有发生的事情”即，推测过去有可能发生但已确
知并为发生的事情may have dne 没有此用法
② 另外，还可以表示“本来应该或可以做某事”之意，含有轻微的责备语气；有时也表劝告
Yu shuld nt swim in that sea; yu might have been eaten by a shark.
② He might have given him mre help, thught he was busy.
3. can„have dne/ cannt have dne
① 只用在否定句和疑问句中 ① 表示对过去发生的行为的怀疑和不肯定
③ can换成culd时语气委婉
① Where can she have gne? ② Culd he have dne such a flish thing?
③ The by can’t have finished reading the bk s sn because it is difficult even t an adult.
culd have dne
① 可用在肯定句、否定句和疑问句中
② 表示“可能已经„„” ② 还可以表示过去能做而没 做的事，有一种对过去为付诸实施的事情的惋惜
① He culd have killed himself
driving at a dangerus speed. ②Yu culd have been mre cnsiderate.
③Yu culd have dne better, but yu were t careless.
4.shuld/ught t have dne
① 用于肯定句时，表示本该做某事，而实际上未做
①He shuld have knwn that the plice wuld never allw this srt f thing.
② 用于否定句时，则表示不该做的事反而做了
②Yu shuldn’t have dne it s carelessly.
③Yu ught t have returned the bk earlier.
④Yu ught nt t have refused his ffer.
5.needn’t have dne
① 表示做了本来不必去做的事 ② 注意：didn’t need t d表示
“没必要做而实际上也没有做某事”
①Yu needn’t have watered the plants, fr it is ging t rain.
②I didn’t need t buy the dictinary. I had a cpy at hme.
6. had better have dne
用于事后的建议，含轻微责备的口吻，意为“当时最好做了某
事”，其否定式had better nt have dne表示相反的含义
①Yu had better have started earlier.
②Yu had better nt have sclded her.
7. wuld rather have dne
表示“当时宁愿做了某事”，其否定式wuld rather nt have
dne表示相反的含义，两者都表示“后悔”之意
①I wuld rather have taken his advice.
②I wuld rather nt have tld him the truth. was(were) t have dne sth
过去未曾实现的计划或愿望
①The meeting was t have been held at 10 yesterday mrning. ②He was t have attended the cnference, but he fell ill.