教育精品：U4P3Grammar.ppt

《教育精品：U4P3Grammar.ppt》由会员分享，可在线阅读，更多相关《教育精品：U4P3Grammar.ppt（18页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、Unit 4The Present Progressive Passive Voice 现在进行时的被动语态现在进行时的被动语态 The present progressive passive voice 1)表示表示“某人某人/事此时此刻正在事此时此刻正在 被被”,主语是动作的承受者。主语是动作的承受者。2)现在进行时的被动语态形式：现在进行时的被动语态形式：am/is/arebeing过去分词。过去分词。它的否定形式是把它的否定形式是把not放在第一个助放在第一个助动词之后动词之后,即即am/is/arenotbeing过去分词。过去分词。疑问形式是把第一个助动词放到句疑问形式是把第一个助

2、动词放到句首，句末改为问号，即首，句末改为问号，即Am/Is/Are主主语语being过去分词？过去分词？特殊疑问句的形式特殊疑问句的形式:把特殊疑问词把特殊疑问词放在一般疑问句前面。放在一般疑问句前面。What is being done on the new medicine.How many bridges are being built in the village?“三变三变”:原句主语变为原句主语变为by短语短语,宾语宾语变为主语变为主语,谓语由主动变为被动；谓语由主动变为被动；“三不变三不变”:原句意思不变原句意思不变,原句时态原句时态不变不变,原句主谓宾以外成分不变。原句主谓宾

3、以外成分不变。They are building nine parks.Nine parks are being built.How many parks are being built?主动语态变被动语态主动语态变被动语态:现在进行时的被动语态现在进行时的被动语态基本用法：基本用法：1.表示现在正在进行的被动动作。表示现在正在进行的被动动作。e.g.Mary is being interviewed now.My car is being repaired now.Whats the matter?2.表现阶段正在进行的被动动作。表现阶段正在进行的被动动作。The disease is be

4、ing studied at present by scientist.The life of the panda is being studied at present.现在正在研究熊现在正在研究熊猫的生活环境。猫的生活环境。3.少数及物动词的进行时表示按少数及物动词的进行时表示按计划、安排将要承受某个动作。计划、安排将要承受某个动作。Some rock music is being played by them next.下面将由他们演奏一些摇滚音乐。下面将由他们演奏一些摇滚音乐。An party is being held tonight.今晚将要举办一场晚会。今晚将要举办一场晚会。4.

5、有些动词进行时的主动形式就有些动词进行时的主动形式就可以表示被动的意思可以表示被动的意思,常见的这常见的这些动词有些动词有:print,cook,fry,bake,burn,hang.e.g.The house is burning.The meat is cooking.5.在某些在某些“介词介词+名词名词”的短语也可以表的短语也可以表示正在进行着的被动示正在进行着的被动,常见的这些介词有常见的这些介词有:on,undere.g.Many new cars are on show.=Many new cars are being showed.Your questions are under

6、 discussion.=Your questions are being discussed.6.有些表有些表“状态状态,心理活动心理活动,情感情感”等等的动词的动词,常用一般现在时的被动语态表常用一般现在时的被动语态表示示“正在进行正在进行”。e.g.You are wanted on the phone.MP3 is becoming more and more popular.In other words,it is loved by more and more people.请找出下列各句中的错误并改正。请找出下列各句中的错误并改正。1.Look!A frog is swallowe

7、d by a snake over there.2.These animals are hunting at such a speed that they will disappear soon.beingbeing hunted3.Will you go with me to see the film that is shown tonight?4.The man has killed his wife.Now he is being wanted by the police.being5.Thousands of families are fleeing their homes because their country is under attacked.beingDiscuss what you should do in the following situations.More situations:What should you do if you are being stared by a pretty girl?What should do if your friend is being sent to work in Tibet?What should you do if you are being given a large sum of money?