人教版英语选修7Unit 2 Grammar.ppt

2. I’ve worked with children before, so I know what ______ in my new job. (MET2000) A. Expected B. to expect C. to be expecting D. expects 3. Having a trip abroad is certainly good for the old couples but it remains ______ whether they will enjoy it. (MET2001) A. to see B. seen C. seeing D. to be seen 4. Allen had to call a taxi because the box was _______ to carry all the way home. (MET2003) A. much too heavy B. too much heavy C. heavy too much D. too heavy much 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 The passive Infinitive 语态当主语是动作的执行者时，动词用主动语态；如果主语是动作的承受者，动词便用被动语态。 We cleaned the classroom yesterday.昨天我们打扫了教室。 The classroom was cleaned by us yesterday. 昨天教室被我们打扫了。 一、被动语态： 被动语态 ｛ 主动语态 被动语态 当主动句变为被动句时，原来的宾语变成了主语，原来的主语变成了介词by 的宾语。 二、被动语态的一般结构： 即：be+ done (+ by) “be+及物动词的过去分词” 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