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The doctor said he _______ an operation yet.
A.needB.needn’t
C.needed notD.didn’t need
D

试题分析:根据语境可知此题重点考查动词need的用法,它有两个词性,作为情态动词时经常用在否定句中,并且后跟动词原形;作为实义动词时后可跟名词,动词不定式,动词的现在分词(表示被动意义)。此句的含义是医生说他没有必要做手术,因operation是名词,故need要用动词形式,又因主句的谓语动词是过去时,故need也要用过去时的形式,故选D。
点评:“需要”need 的用法一、作情态动词 1.need作情态动词无人称或数的变化,后接动词原形,多用于否定句和疑问句中。2.由need引出的一般疑问句,肯定回答常用must或have to;否定答语常用needn't. 3.由must引出的一般疑问句,肯定回答用must,否定答语用needn't或don't have to。二、作行为动词 need 作为行为动词有人称和数的变化,后面可接名词、代词、动名词及带to 的动词不定式;可用于肯定句、疑问句和否定句中,Need后跟动名词时表示被动意义相当于need to be done。
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