新课标人教版选修七Book7 Unit2 Grammar.ppt

5.____late in the afternoon, Bob turned off the alarm. (2001年北京春季高考)?A. To sleep? B. Sleeping? C. Sleep? D. Having sleep 6.With a lot of difficult problems ____,the newly-elected president is having a hard time.(2002年上海春季高考) A. settled B. settling C. to settle D. being settled 7. She will tell us why she feels so strongly that each of us has a role ___in making the earth a better place to live. (2003上海春季高考) A. to have played B. to play C. to be played D. to be playing 8. In order to gain a bigger share in the international market, many state run companies are trying ___their products more competitive. ( 2002上海春季高考) A. to make B. making C. to have made D. having made Revision of  The passive Infinitive 不定式语法? 不定式的时态和语态 不定式有时态和语态的变化，时态共四种，即一般式、完成式、进行式和完成进行式。语态分为主动语态和被动语态，如下表所示。 语态 时态 主动语态 被动语态 一般式 to do to be done 完成式 to have done to have been done 进行式 to be doing / 完成进行式 to have been doing / 当动词不定式的逻辑主语是动词不定式所表示的动作的执行者时用主动语态；当动词不定式的逻辑主语是动词不定式所表达的动作的承受者时用被动语态。进行式和完成进行式没有被动语态。 ???一、 不定式的被动形式有下列用法 1．作主语： It is an honour for me to be asked to speak here. 2．作宾语： She asked to be sent to work in Xinjiang. 一 当不定式的逻辑主语是不定式所表示的动作的承受者时，不定式一般要采用被动形式。 ． 3．构成复合宾语： He wanted the letter to be typed at once. She didn’t like herself to be praised like that. 4．构成复合谓语： The books are not allowed to be taken out of the room. 5．作定语： Are you going to the meeting to be held in the teachers’ office? 6．作状语： She was too young to be assigned such work. 二、不定式有时还可以有完成式的被动式，在句中作主语、宾语、定语，或者构成复合宾语、复合谓语等，如： It is a good thing for him to have been criticized.（主语） She preferred to have been given heavier work to do. (宾语)） He thought it an honour to have been invited to the party. （复合宾语） The book is said to have been translated into many language