专升本英语非谓语动词
逻辑主语:
是非谓语动词动作的执行者或承受者;它们在逻辑上存在着主谓关系或动宾关系,但不能直接作非谓语动词的主语,因此叫逻辑主语。
He likes helping others.
It is impossible for you to finish so much work in so short a time.
The teacher asked me to answer his question.
I saw him playing at the river side.
不定式
(一)如果不定式所表示的动作与主要谓语的动作(状态)同时(或几乎同时)发生 或 发生在主要谓语的动作之后,那用一般时。
Suddenly she began to sob.
People are waiting to welcome him.
His family had flown there to meet him.
(二)如发生在主要谓语的动作或特定的某时间之前,用完成时。
The Vikings are believed ________America. (discover)
(三) 如主要谓语的动作(情况)发生时,不定式动作正在发生时用进行时。
When he came in, l happened to be doing my experiment in the lab.
Why do you stand here? You are supposed to be working in the workshop.
(四) 完成进行体在主要谓语的动作之前一直在进行。
The students are said to have been investigating the possibility of the plan. (feasible)
不定式的句法作用
1.主语
It is not easy to learn English well.
2.宾语
He decided to give up the job.
3。表语
My job is to look after the baby.
4.定语
l have a lot of things to do.
5.状语
a.表目的
He went out to buy a paper.
To succeed, we must make good preparation.
b.表结果
He left, never to return.
What have I said to make you so angry?
c.表原因
I am sorry to hear it.
She is surprised to see him.
d.伴随状况。在下列表示能力、愿望、倾向等语义的形容词后:able, anxious, eager, inclined, liable, likely, pleased, ready等。
She is always ready to help others.
We are eager to take part in the work.
Be careful not to catch a cold.
6.复合宾语/宾补
She told me not to go out.
I saw a man enter the room.
-ing 分词
1、We think that Mr. Lin didn’t come yesterday strange. (划出宾语/ 改用it)
We think it strange that Mr. Lin didn’t come yesterday.
2、每人都要写一篇作文这一点她已经讲得很清楚了.
She has made it clear that everyone should write a composition.
3、我们觉得互相帮助是我们的责任.
We feel it our duty that we should help each other.
4、我们认为他们在渡船上吸烟是不对的.
We don’t think it right that they smoke on the ferry.
5、我们认为他们不可能的懂得怎么操作电脑.
We consider it impossible that they could know how to operate a computer.
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