module4 sandstorms in Asia-grammar课件（外研版必修3）.ppt

5. Her wish is ______ a doctor. A. becoming B. become C. to become D. being come 形式 时间概念 语态 to do /do 与谓语动词同时发生或发生在谓语动词之后 主动 to be doing 与谓语动词同时发生，动作在进行 主动 to have done 发生在谓语动词之前 主动 to be done 与谓语动词同时发生或发生在谓语动词之后，与逻辑主语呈动宾关系。 被动 to have been done 发生在谓语动词之前，与逻辑主语呈动宾关系。 被动 1. 不定式的一般形式所表示的动作通常与谓语的动作(状态)同时(或几乎同时)发生, 或是在它之后发生。 e.g.: I saw him go out.(同时） I plan to attend the meeting.(之后） 不定式的时态和语态 2. 如果谓语表示的动作发生时, 不定式表示的动作正在进行, 这时要用进行时。 e.g.: I am very glad to be working with you. They seem to be talking about something important. (不定式的动作与谓语动词的动作总是同时发生的） 3. 如果不定式的动作发生在谓语动词之前, 就要用完成时。 e.g.: I’m sorry to have kept you waiting so long. He seems to have seen the film. (不定式的动作在前） 4. 当不定式逻辑上的主语是这个不定式所表示的动作的承受者时, 不定式一般要用被动形式。 e.g.: He asked to be sent to work in the countryside. This book was said to have been translated into many languages. 1. Tom ____ when they spoke ill of him. A. happened to be passed B. happened to be passing by C. happened passing by D. happened to passed Have a try 2. All the rooms in the house require ______. A. being cleaned B. to clean C. cleaning D. cleaned 3. The news reporters hurried to the airport, only ___the film stars had left. A. to tell B. to be told C. telling D. told 1. 不定式在介词 but, except, besides, other than 后面时, 如果这些介词之前有行为动词do (非助动词)的各种形式时, 那么这些介词后面的不定式不带to,否则带to。 but+不定式的用法 e.g.: She could do nothing but cry. There was nothing for me to do other than（but) wait until