结构 : to do (否定 ) not to do 二
时态与语态主动语态被动语态一般式进行式完成式完成进行式不定式 to do to be done to be doing to have done to have been done to have been doing--------------------1
作宾语补足语4
作独立成分8
与疑问词等连用三
用法 / 功能To see is to believe
It’s important to learn
主语不定式作主语时 , 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
isis(2)
表语I want to go home
The workers demanded to get better pay
I found it necessary to talk to him again
(3) 宾语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 outChoose, decide, agree, manage, pretend, plan
The teacher told me to clean the blackboard
I expect you to give me some help
宾补五看 watch see look at observe notice三使 let make have 二听 listen to hear一感觉 : feelWarn, tell, allow,