非谓语动词知识复习梳理一、动词不定式1
请认真讨论下列的句子,分析句中不定式的形式有何变化1) They invited us to go there this summer
2) She seemed to have heard about this matter
3) It’s nice of you to be helping us these days
4) He pretended to be listening to the teacher carefully
5) They are said to have been working in Tibet for 20 years
6) It’s a good thing for him to have been scolded by the teacher
7) He asked to be sent to work in the countryside
8) She was the last person to have been mentioned at the meeting
我们来自己归纳一下上面句子中不定式的形式(以 do 为例)不定式的时态和语态 形式主动式被动式 一般式to doto be done完成式to have doneto have been done进行式to be doing/完成进行式to have been doing/2
我们再来看下面一组句子,讨论不定式在句子中的使用(不定式的语法功能)1) To see once is better than to hear a hundred times
2) To master a foreign language is not an easy thing
3) To see is to believe