don't need 等不等于 needn't
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/10 14:04:02
don't need 等不等于 needn't
意思和翻译是一样的,但语法和意思不一样的
need既可用作情态动词,也可用作实义动词.当need作情态动词时,意思是“必要,必须”,主要用于否定句(needn't)和疑问句,第三人称单数不加s,过去式不加ed;当need作实义动词时,意思是“需要,想要”,可用于肯定句,否定句(don't need)和疑问句中,第三人称单数要加s,过去时要加ed,其后接的不定式要加to.
例:I want to go to the dentist,but you needn't go with me..
我要去看牙科医生,但你不必跟我一起去.( need作情态动词)
例:I don't need to buy a new pair of shoes.
我不需要买一双新鞋子.(need作实义动词)
need既可用作情态动词,也可用作实义动词.当need作情态动词时,意思是“必要,必须”,主要用于否定句(needn't)和疑问句,第三人称单数不加s,过去式不加ed;当need作实义动词时,意思是“需要,想要”,可用于肯定句,否定句(don't need)和疑问句中,第三人称单数要加s,过去时要加ed,其后接的不定式要加to.
例:I want to go to the dentist,but you needn't go with me..
我要去看牙科医生,但你不必跟我一起去.( need作情态动词)
例:I don't need to buy a new pair of shoes.
我不需要买一双新鞋子.(need作实义动词)
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