3.不定式和动名词作宾语的区别

(1)有少数动词只能用动名词作宾语

acknowledge，admit ，dislike， advocate，complete，appreciate ，avoid，enjoy，delay，escape，deny

例如：I appreciate having been given the opportunity to study abroad two years ago.

我很感激两年前给我出国学习的机会。

(2)有些动词后使用动名词和动词不定式作宾语的差别

1)forget to do 忘记要去做某事(此事未做)，forget doing忘记做过某事(此事已做过或已发生)

2)stop to do 停止、中断(某件事)，目的是去做另一件事。stop doing 停止正在或经常做的事

3)remember to do 记住去做某事(未做)，remember doing记得做过某事(已做)

4) regret to do对要做的事遗憾，regret doing对做过的事遗憾、后悔

5)try to do努力、企图做某事，try doing试验、试一试某种办法

6) mean to do打算，有意要…，mean doing意味着

4.不定式和分词作状语的区别

(1)现在分词与过去分词作状语的区别。

1)现在分词作状语时，现在分词的动作就是句子主语的动作，它们之间的关系是主动关系。

Not knowing what to do, he went to his parents for help.

2)过去分词作状语时，过去分词表示的动作是句子主语承受的动作，它们之间的关系是被动关系。

Given more attention, the trees could have grown better.

5.非谓语动词常考的其它结构

(1)疑问词+不定式结构

疑问词who，what，which，when，where和how后加不定式可构成一种特殊的不定式短语。它在句中可以用作主语、宾语、表语和双重宾语。

When to start has not been decided.何时动身尚未决定。(主语)

I don't know what to do.我不知道该怎么办。(宾语)

The difficulty was how to cross the river.困难在于如何过河。(表语)

I can tell you where to get this book.我可以告诉你哪里可以买到此书。(双重宾语)

(2)不带to的不定式

1)在表示生理感觉的动词后的不定式不带to。

这类词有： feel observe overhear watch listen to perceive notice see look at hear

On seeing the young child fell into the lake，Eric sprang to his feet，and went on the rescue.

2)另一类是某些使役动词，如make, let，have等。

I would have you know that I am ill.我想让你知道我病了。

上述感觉动词与使意动词转换为被动结构时.其后的不定式一般需带to，

The boy was made to go to bed early.

3)在do nothing/anything/everything but(except)结构中。

例如：Last night I did nothing but watch TV.

但是，如果谓语动词不是“do nothing，anything，everything”，那么but(except)所跟的不定式则仍须带to。

There was nothing for them to do but to remain silent.

以上就是我们整理的非谓语动词的语法知识，内容虽然有点多，但是讲解的十分清晰，大家复习时用起来是很方便的，希望考生能够好好利用考前剩下的这段时间，再辛苦一个多月，争取一次过关!