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必修4《Grammar Summary》优质课PPT课件下载
Infinitive
一. 结构 : to do
(否定) not to do
二. 用法/ 功能
To see is to believe.
It’s important to learn .
(1). 主语Subject
不定式作主语时,往往放在谓语之后,
用it作形式主语.
My job to help the patient.
Your task to clean the classroom.
is
is
(2). 表语Predicative
I want to go home.
The workers demanded to get better pay.
I found it necessary to talk to him again.
(3) 宾语Object
make/think/ consider/ find it + adj.+ to do
常用动词不定式作宾语的动词有：
hope, refuse, learn, set out
choose, decide, agree, manage,
pretend, plan.
The teacher told me to clean the blackboard.
I expect you to give me some help.