How dare you to say such a thing? He daren’t to speak English before such a

　　crowd, did he?

　　He daren’t speak English before such a

　　crowd, dare he? Nobody need to be afraid of catching the disease.

　　Nobody need be afraid of catching the disease. These dishes need be cleaned carefully.

　　These dishes need to be cleaned carefully.

　　These dishes need cleaning carefully. 注意对need问句的回答:

　　--Need I finish the work today?

　　--Yes, ________________.

　　No, ________________.

　　No, ________________. you must you needn’t you don’t have to needn’t 对其它情态动词的回答:

　　--Shall I tell John about it?

　　--No, you __________.

　　--Must we do it now?

　　--No, you __________.

　　needn’t

　　(don’t have to)

　　needn’t (don’t have to) 表示推测——情态动词的重要用法. 1. You must be Mr Smith----I was told to expect

　　you here. 2. He must have known what we wanted. 3. We may have read the same report. 4. He can’t have slept through all that noise. 5. There’s someone outside----who can it be? 6. What can they be doing? 7. These pills might help to cure your disease. 8. You could be right, I suppose. 表示推测——情态动词的重要用法. 肯定的推测

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