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It is a good example of a site that many people think to change. A. need B. to n

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It is a good example of a site that many people think to change. A. need B. to n

 Itis a good example of a site that many people think _____ to change.

A. need B. toneed C. needs       D. needing

 

试题答案

【答案】

 C

此题考查need的用法,还要理清句子结构。that前是个主句,that引导的是个定语从句,其先行词是a site,定语从句中谓语动词应该用单数needs,many people think是插入语,空格处是谓语部分。插入语经常被出题人放在题目中,使句子复杂化,增加句子的难度,做题时可以把插入语去掉,便于理解句子结构。

need既可用作情态动词也可用作行为动词,主要用法如下:

①作情态动词时表示“需要;必须”,后面当然跟动词原形,仅用于否定句或疑问句中,否定式是needn’t,在肯定句中一般用must, have to, ought to或should代替,如:

You needn’t buythe book.

—Need I finishthe work today?   —Yes, you must.

② 作行为动词时,有时态、人称和数的变化,后面跟to do,否定形式要用don’t/doesn’t/didn’t need,如:

He needs tofinish it this evening.

③ need用作行为动词时,后面还可以跟动名词或名词,此时含义跟need后面用不定式的含义不一样。“need +动名词”含有被动意义,类似这样的用法还有有want, require,如:

Our classroomneeds cleaning. = Our classroom needs to be cleaned.

既可用作情态动词也可用作行为动词的还有dare。