文档介绍：非谓语动词
1. to do 2.-ing
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非谓语
不定式(to do)
V-ing
V-ed
as a noun
as adj. or adv.
现在分词
动名词
过去分词
非谓语动词的分类
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使用条件
一个句子当中,已经存在一个主句(谓语动词),又没有连词的情况下, 还有别的动词出现时,这些动词就充当了非谓语动词.
非谓语动词的
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Smoking is bad for health.
2. His hobby is swimming.
3. I heard the girl singing in the classroom.
4. The man talking with my father is Mr. Wang.
5. He decided to try again.
找出下列句子中的非谓语动词(含短语)
is
is
heard
is
decided
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非谓语动词的句法作用
非谓语
动词
主语
宾语
表语
定语
宾补
状语
不定式
√
√
√
√
√
√
动名词
√
√
√
√
现在分词
√
√
√
√
过去分词
√
√
√
√
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一、考查非谓语动词作主语
能作主语的非谓语动词有不定式和动名词。二者的
区别是:表示某一具体的动作时,多用不定式;表示比
较抽象的一般行为倾向的,多用动名词。动名词作主语
时通常位于句首;不定式作主语时常置于句末,用it
作形式主语放在句首。
1) Smoking is prohibited(禁止)here.
2) It is not very good for you to smoke so much.

3) Collecting information is very important to
business men.
4) Driving a car during the rush hour is tiring.
(抽象)
(具体)
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It+be+名词/形容词+to do
It+be+形容词 for sb /of sb+to do
It takes/took sb +时间+to do
It is necessary ____________(spend) enough time on English if you want to learn it well.
to spend
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1). To make a plan first is a good idea.
= It is a good idea to make a plan first.
2). It takes three hours to walk there.
It is possible for him to master the art of speaking.
It was careless of him to break the coffee cup.
= He was careless to break the coffee cup.
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2. 动名词或不定式都可以在句中作主语,但在下列句型中常用动名词作主语。
It is/was
no use/good
not any use/good
of little use/good
useless
+doing sth.
It is no use crying over spilt milk.
It is of little good staying up too late ever