高中语法_不定式1[精选].ppt

不定式的 时态 一般式：时间性不强或表即将发生的 事儿 eg1:Im pleased to see you here. eg2:Im expecting to hear from you. eg3:The meeting to be held is about protecting environment. 完成式：表示动作已经发生或完成 eg1:Im sorry to have kept you waiting so long. eg2:She is said to have studied abroad last year. eg3:The boy pretended to have known the answer. 不定式的进行式：表动作正在进行 eg1:Mary seems to be thinking deeply. eg2:The children pretended to be reading aloud when the teacher came in. eg3:I happened to be watching TV when she called. 主被动的选择 1.I have decided ________(study) engineering. 2.She promised ______(come) at nine oclock. 3.She asked_______(treat) equally. 4.The radio needs______(repair). 5.Im looking for a room_____(live). 6.Id like something ______(drink). 7.The meeting________(hold) is very important. 8.My wish is______(have) a job in an office. 9.Your assignment is______(hand in) tomorrow. 主被动的选择 1.I have decided to study engineering. 2.She promised to come at nine oclock. 3.She asked to be treated equally. 4.The radio needs to be repaired. 5.Im looking for a room to live in. 6.Id like something to drink. 7.The meeting to be held is very important. 8.My wish is to have a job in an office. 9.Your assignment is to be handed in tomorrow. 主被动的选择 总结：一般来说，不定式主被动的选择要和它的逻辑主语保持一致，逻辑主语一般就是整个句子的主语。 有没有特殊情况呢？ 1.I allow him______(smoke) here. 2.They dont allow these book______(take out of) the reading room. 3.I dont believe he is a man ______(depend on). 4.It is important for you ____(learn)English well. 5.It was kind of you____(help) us. Q:下面几个句子的“逻辑主语”是什么呢？ 1.I allow him to smoke here. 2.They dont allow these book to be taken out of the reading room. 3.I dont believe he is a man to be depended on. 4.It is important for you to learn English well. 5.It was kind of you tohelp us. 主被动：当不定式的 逻辑主语是不定式动作的承受者时，一般要用其被动形式 eg1:She asked to be treated equally. eg2:The radio needs to be repaired. eg3:The room seems to have been broken in. 主动形式表示被动 The work is easy to do. These signs are hard to see cleary. 答语中的省略情况 ——Woul