动词不定式.ppt

文档介绍：动词不定式
动词不定式的基本形式是“to+动词原形“, , 在句子中不能作谓语。在句中可以作主语、表语、宾语、宾语补足语、定语和状语。
不定式的形式
主动语态
被动语态
一般式
to write
to be written
完成式
to have written
to have been written
进行式
to be writing
完成进行式
to have been writing
用法:
1. 用作宾语(v. + to do )
I want to buy puter.
need to do learn to do agree to do
plan to do decide to do refuse to do
begin to do start to do try to do
forget to do remember to do like to do
Stop to do go on to do
to do
doing
forget
忘记要做某事
忘记曾经做过某事
remember
记得要去做某事
记得做过某事
stop
停下来去做另一件事
停止正在做的事
try
努力去做某事
试着去做某事
go on
接着做另外一件事
继续做同一件事
1. He wants ______ some vegetables.
A. buy B. buying C. to buy D. buys (山西省)
2. Don't forget ______ your homework with you when e to school.
A. to bring B. bringing C. to take D. taking (福建省)
3. He found it very difficult ______.
A. sleeping B. sleepsC. slept D. to fall asleep (湖南省)
. I found it very important to learn English well.
I feel it my duty to do so.
think, make, find, feel
+ it + adj. / n + to do sth.
2. 用作宾语补足语:(v. + sb. + to do )
She asked me to help her.
want sb. to do wish sb. to do
get sb. to do order sb. to do
find sb. to be like sb. to do
would like sb. to do help sb. to do
1. Robert often asks us ______ his Chinese, so his Chinese is much better than before.
A. help him B. to help him with C. to help with D. helps him with (江苏省)
2. Mr Li often teaches his Japanese friends ______ Chinese food.
A. cook B. cooks C. to cook D. cooked (甘肃省)
作宾语补足语不带to 的情况:
Let me do it.
I saw him cross the street.
常见动词有:
使役动词: let, make, have
感官动词: see, watch, hear, feel, listen to
注意:感官动词即可接to do,又可接doing,用不定式表示动作的全过程(动作已结束),用动词的-ing形式表示动作正在进行(动作尚未结束)。