如题所述
用于表示“需要,必要”之意。做情态动词时,仅用于否定句和疑问句,只有现在时,过去式要用needn't have,疑问式用need+人称?,否定式用need not(即needn't),
1.—Need we leave soon?
—Yes, you must.(No, you needn't)
2.You needn't have hurried.
(=It was not necessary for you to hurry,but you did).你当时不必这么匆忙。
3.He needs to see a doctor.(need to do)追问
1.—Need we leave soon?
—Yes, you must.(No, you needn't)
2.You needn't have hurried.
(=It was not necessary for you to hurry,but you did).你当时不必这么匆忙。
3.He needs to see a doctor.(need to do)追问
汉语
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第1个回答 2012-06-17
用于表示“需要,必要”之意。做情态动词时,仅用于否定句和疑问句,只有现在时,过去式要用needn't have,疑问式用need+人称?,否定式用need not(即needn't),
1.—Need we leave soon?
—Yes, you must.(No, you needn't)
2.You needn't have hurried.
(=It was not necessary for you to hurry,but you did).你当时不必这么匆忙。
3.He needs to see a doctor.(need to do)
1.—Need we leave soon?
—Yes, you must.(No, you needn't)
2.You needn't have hurried.
(=It was not necessary for you to hurry,but you did).你当时不必这么匆忙。
3.He needs to see a doctor.(need to do)
第2个回答 2012-05-27
在肯定句中need 不用作情态动词
You needn't go to school, for today is Sunday.
Need I finish the work today?追问
You needn't go to school, for today is Sunday.
Need I finish the work today?追问
汉语
追答你不必上学,因为今天是星期天
我今天需要完成这项工作吗?
否定句:needn't +动词原形
一般疑问句:Need+主语+动词原形...?