文档介绍：关于非谓语动词精讲
第一页，本课件共有48页
1．性质：它具有动词的特点，但在句子中起着名词、形容词、副词的作用，充当主语、表语、定语、宾语、宾语补足语、状语的作用，即：除谓语以外的一切成分。
非谓语动词
2．形式
不定式 相当于名词、形容词、副词。充当主语、宾语、定语、表语、宾语补足语、状语。
动名词 相当于名词充当主语、表语、定语、宾语.
分词 相当于形容词、副词。作表语、定语、宾语补足语、状语。
第二页，本课件共有48页
一 动词不定式
The Infinitive
(to do ……)
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不定式的作用
不定式的时态
不定式的语态
不定式
1. 主语
2. 宾语
3. 宾语补足语
4. 表语
5. 定语
6. 状语
第四页，本课件共有48页
1. ______( talk ) with him is a great pleasure.
2. ______( help ) others is our duty.
To talk
To help
3. 如果要说明不定式表示的动作是谁做的，可以在不定式前加一个由 for 引起的短语,构成不定式的复合结构。
2. 不定式作主语时,可以用it作形式主语.
It is our duty to help others
4. It is+adj+for sb to do ……
It is+adj+ of sb to do………
4. It is important ______ Tom to get that job.
It is kind ______ you to help me with my
for
of
1．不定式作主语：
is easy____________ __________ (学生读)
(adj: kind, good, nice, wise, unwise, clever, silly, stupid, foolish,
careless, rude, polite,naughty
（修饰人的形容词）
（修饰物的形容词）
，谓语动词单数
for the students to read.
第五页，本课件共有48页
1. Her work is ______( look ) after the children.
2. My aim is ______( go ) to TsingHuaUniversity.
3. She seemed ______( think ) about the problem.
4. They appeared _______( agree ) with what we said.
to look
to go
to think
to agree
2．不定式作表语
不定式作be动词的表语时可以和主语部分调换，
说明主语的内容。
第六页，本课件共有48页
：want, demand, hope, wish, expect,fail, help, offer, manage, pretend, promise, prepare, learn, agree, plan, determine, prefer, intend.
1. They wanted ________( get ) on the bus, didn’t they?
2. He said he wished __________( be ) a professor.
3. I agreed__________ ( go ) there with the doctor.
4. He had promised ________ ( give ) me a hand.
to get
to be
to go
to give
3．不定式作宾语：
found _______________Russian.(study/important)
computer makes____________________
(possible/ calculate faster)
如作宾语的不定式有自己的补语，须用先行词 it作 形式宾语，
而将真正的宾语不定式后置。
有些及物动词常用不定式作宾语。常见的动词有
it important to study
it possible to calculate faster.
句式：Subject+v+it+adj/n+to