在英语中,如何知道什么时候用什么非谓语动词

如题所述

一个句子有且只有一个谓语动词,因此在句中充当除谓语以外的句子成分的动词形式叫做非谓语动词。非谓语动词分为三种形式:不定式、动名词和分词(分词包括现在分词和过去分词)。大体来说作状语的情况:主动doing,被动done,表目的to do;作宾语(包括介宾)主动doing,被动done,未做to do;having done表示非谓语动作先于谓语动词发生

Prices of daily goods ______ through a computer can be lower than store prices.
A are bought B bought C been bought D buying.
答案:B
When I got back home I saw a message pinned to the door ______ “Sorry to miss you; will call later.”
A read B reads C to read D reading
答案:D

The problems _ at the meeting
tomorrow are really hard to solve.
A. discussed B. to discuss
C. to be discussed D. discussing
答案:C
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第1个回答  2012-11-28
一个句子中已有一个谓语动词.因为一个句子只能有一个谓语!
第2个回答  2012-11-28
不是谓语动词
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