人教版选修7：Unit+2+Robots+Grammar(共64张)综述.ppt

Learning about  language Period 4 My mother felt alarmed when I had my hair coloured purple. My mother was alarmed when I had my hair coloured purple. Discovering useful structures Go over the passive voice 1. be+ V+-ed/-en/-t My homework was eaten by the dog. The toy is made by hand. The functions of the infinitive. Except predicate, the infinitive can function as subject, object, predicative, attribute, adverbial and object compliment. to be + past participle 当不定式动词与其逻辑主语之间是被动关系时，不定式要用被动语态。其构成形式如：to be given, to be shut, to be opened For example: She hates to be laughed at. (others laugh at her. ? She is laughed at by others) 2. I am expecting to be given a pay-rise next month. (give me a pay rise ? I will be given a pay rise.) Examples: be to + passive infinitive (to be + past participle) is often used in notices and instructions. 9. I hurried to the meeting hall, only____ that the meeting had been put off. A. to tell B. to be told C. telling D. told 10. Do let your mother know all the truth, she appears____ everything. A. to tell B. to be told C. to be telling D. to have been told 4. Little Tom should love____ to the theater this evening. A. to be taken B. to take C. being taken D. taking 5. It is said that plastics can be used to____ many things. Now people are used to____ plastics products. A. make; using B. making; using C. making; use D. make; use 7. He___ and was made to repeat it. A. didn’t understand B. didn’t be understood C. wasn’t understand D. wasn’t understood 8. The pupils here____ all kinds of exercises every day in the past four weeks. A. kept busy doing B. keep on doing C. have kept busy doing D. have been ke