1. You shouldnt have laughed at his mistakes.
2. You could have told us earlier.
3. I ought to have bought that dictionary last week.
4. You ought not to have spent so much time in reading novels.
5. We need not have been in a tearing hurry to catch the train.
6. They would like to have seen that film last film.
7. If he had given me his number, I could have telephoned him.
8. They might have been frozen to death but for the rescue in time.
知识难点:
某些情态动词的特殊用法:
need 和dare 的两种形式的用法
need 和dare可以用做实义动词,后面接不定式(to do)结构,在疑问句和否定句中,加助动词do/does/did/或dont/doesnt/didnt。作为情态动词使用时,主要用于疑问句和否定句中。情态动词neednt(没有必要,不必)相当于dont have to
例句:
1. It is cold, you need to wear some warm clothes.
2. Need I stay here with you for a while ? Thank you, you neednt.
3. How dare you speak to parents like that ?
注意:
句型I dare say+从句。 意思是:我肯定 = Im sure或There is no doubt that+从句。
例句:
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2016-02-29
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