非谓语动词专题二 第三讲 随遇而安“不定式” （2）
（3）作宾语：
- 动词+to do
He managed to escape from the fire.
I find it hard to get along with him.（it 作形式宾语）
下列动词通常用不定式作宾语：
want, hope, wish, offer, fail, plan, learn, pretend, refuse,
manage, help, promise, prefer, like , begin , try , need , forget , agree , know , teach ,
help , arrange , dare , decide , determine , prepare , continue , ask , mean , choose ,
expect ，choose, get等。
注意：
有的动词后面可以加doing，也可以加to do，意思略有不同。
try to do 努力做某事
try doing 尝试做某事
mean to do 有意做某事
mean doing 意味着
2.动词+疑问词+to 特殊疑问句+不定式”相当于名词，作宾语。
I don’t know what to do next/ how to do it next.
I can’t decide when to go there.
【考点1】
用it 作形式宾语。
I find it necessary to learn a foreign language.
We think it important to obey the laws .
【考点2】
口诀：but 前面有实义动词do，but 后面省略 to
He did nothing last Sunday but repair his bike. 他上周日除了修他的自行车什么也没干。
I have no choice but to stay here. 我只能留在这里，别无选择。
（4）作宾语补足语：
1.动词+宾语+to do
He warned me to be careful.
I want you to speak to Tom.
What makes you think so?（不带to的不定式）
【考点1】
用动词不定式做宾补的动词有：
ask, tell, order ,want ,get, would like, like, advise, invite, allow, help, wish,warn, expect,
prefer, encourage，beg, permit, persuade,prepare, cause, force, call on, wait for, invite.
【考点2】
介词与这种复合宾语连用:
With a lot of work to do, he didn’t go to the cinema．
他有很多工作要做，所以没去电影院。
2.表示见解、看法的动词结构：动词+宾语+to be
We consider Tom to be one of the best students in our class.
The book is believed to be useful.（被动语态）
3.there +to do
We didn’t expect there to be so many people there.我们没料到会有那么多人在那里。
【考点1】
（1）regard, think, believe, take, consider + as
We regard Tom as our best teacher. 我们认为汤姆是我们最好的老师。
Mary took him as her father. 玛丽把他当作自己的父亲。
（2）在动词feel （一感），hear, listen to（二听），have, let, make（三让），notice,
see, watch, observe, look at（五看）
(即：吾看三室两厅一感觉)等后面的补足语中，不定式不带to，但变为被动语态后，必须带to。
They saw the boy fall off the tree.
The boy was seen to fall off the tree.
(3)help后面作宾语补足语的不定式可以带to,也可以不带to.
I often help him （to）clean the room.
