(非谓语动词)
I. 非谓语动词类别及特征
II. 非谓语动词的使用
III.非谓语动词的区别
I.非谓语动词的类别及特征
I)类别:
1. 动词不定式 (to do)
2.分词 (现在分词 doing 和过去分词 done)
3. 动名词 (doing)
II)特征
1.不能担任谓语动词
2.不随主语的人称和数的变化而变化
3.具有动词的一般特性,可以带有宾语或状语构成短语
II.非谓语动词的使用
I)动词不定式
1.句中功能及时态,语态
句中功能
相当于名词功能 主语 To say is one thing and to do is another.
宾语 He offered to help us.
相当于形容词
功能 表语 His great wish is to become a doctor and save others’ lives.
宾语补足语 Many people suppose him to be dead.
定语 I have a lot of work to do.
相当于副词功能 状语 To see better, he stood up.
He reached the station (only) to find the train had left.
时态和语态
形式 主动语态 被动语态
一般式 (not)to do (not) to be done
进行式 (not) to be doing /
完成式 (not) to have done (not) to have been done
完成进行式 (not) to have been doing /
e.g. (1) He seemed to be tired.
We expect her not to come.
He had to shout loud to be heard
(2) They happened not to be doing their business.
He pretended to be doing homework when his mother came in.
(3) He is said not to have handed in today’s homework
The 68-old patient is reported to have been killed by SARS in Shanghai.
(4) She seems to have been working on the project for quite some time.
* 注意选用正确的时态:
Nice to meet you.
Nice to have met you.
2. 动词不定式的运用
1)主语
To go swimming in the sea in summer is great fun.
It is great fun to go swimming in the sea in summer.
It takes me some time to get the point across.
2)表语
The next step is to find a medicine to cure SARS.
(*主语为step, aim, duty, hope, wish, idea, plan, job, problem, purpose, thing, function等时用to do 作表语)
A number of problems remain to be solved.
What I like to do now is (to) have a good sleep.
(当主语中出现do的任何形式时,表语中的to可省去)
3)宾语
四大句型:
a.动词 + to do: long, want, expect, hope, wish, desire, refuse, agree, pretend, promise, aim, choose, decide, claim, demand, learn, manage, try, afford, happen, fail, seem, appear, intend …
b.动词+ 疑问词+ to do: know, decide, learn, remember, see, understand, explain, ask, find out, wonder, think…
c.动词+ 间接宾语 + 疑问词 + to do: show, teach, advise, tell, inform …
d.动词+ it +补足语(adj./n.) + to do(真正宾语):
find, think, consider, make, feel…
* 介词but, except后接不定式时,若上文含有do的各种形式,或出现can, can’t, could, couldn’t时,则不定式省to
(即 do nothing except/ but do, can’t do anything but/ except do,
cannot help but do, cannot but do)
e.g. When the enemy surrounded the house, she had no choice but to swallow the letter.
They could do nothing but wait for the doctors to come.
4) 宾语补足语
四个句型:
a. 动词+宾语+ to do: wish, get, cause, enable, ask, beg, mean, expect, force, invite, permit, urge, remind, persuade, want, warn, allow, encourage, advise, prepare…
