精选优质文档-倾情为你奉上非谓语动词知识复习梳理一、动词不定式1. 请仔细研究下列的句子，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) Its 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) Its 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 t
