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1、The Passive Voice被动态被动态 英语中动词有英语中动词有主动语态主动语态和和被动语态被动语态两种两种语态。主动语态表示主语是动作的执行者语态。主动语态表示主语是动作的执行者,被被动语态表示主语是动作的承受者动语态表示主语是动作的承受者, 在被动语态在被动语态中动作的执行者有时用中动作的执行者有时用by短语表示出来短语表示出来.一般现在时一般现在时(simple present)： S(主语主语)+am/is/are +过去分词过去分词(done)一般过去时一般过去时(simple past)： S(主语主语)+was/were +过去分词过去分词(done)She waters
2、 the flowers every day.The flowersevery day.are watered (by her)They do their homework after school.Their homework is done (by them) after school.He plays basketball every week. Basketball is played (by him) every week.My mother sweeps the floor every day.The floor is swept (by my mother) every day.
3、2. I bought a computer last term A computer was bought (by me) last term.The light was invented (by Thomas Edison).inventThomas Edison invented the light. Jim rode the motorbike to his factory yesterday.The motorbike was ridden (by Jim ) to his factory yesterday. They had an evening party last week.
4、An evening party was had (by them )last week.The students planted many trees yesterday.Many trees were planted (by the students) yesterday. Ann can take good care of the cats The cats can be taken good care of by Ann.情态动词情态动词(model verb)： S+ can/must/should等情态动词等情态动词 + be+过去分词过去分词 He can carry the b
5、asket. The basket can be carried (by him).They can sing some beautiful songs.Some beautiful songs can be sung by them.We should clean the classroom every day.The classroom should be cleaned by us every day.1.People use knives for cutting things.2.The students clean the windows of their classroom twi
6、ce a month.The windows of their classroom twice a month.knives are used for cutting thingsarecleaned(变被动语态）变被动语态）七嘴八舌3. We found the ticket on the floor .The ticket was found on the floor.4.I told her to return the book in time.She to return the book was told5. Last year we built a library in our sc
7、hool.A library in our school last year.was builtwas built 6. Now people can use computers to help them. Now computers to help them. can be used 7. Did you plant many trees at this time last year? Were many trees planted at this time last time?8.Must we finish our work today? Must our work be finishe
8、d today? 9. The foreign friends gave us some wonderful stamps.1) We were given some wonderful stamps.2) Some wonderful stamps were given to usHave a try1. The emperor invented tea by accident.2. Many Chinese can speak English.3. They dont wash their clothes every day.4. The boy broke the door of the
9、 class.Tea was invented by the emperor by accident.English can be spoken by many Chinese.Their clothes arent washed by them every day.The door of the class was broken by the boy.5. We didnt solve the problem.6. Did Mary finish the work?7. His mother shouldnt allow him to wear earrings.8. Should we water the trees every day?9. We must stop people walking on the grass.The problem wasnt solved by us.Was the work finished by Mary?He shouldnt be allowed to wear earrings by his mother.Should the trees be watered by us every day?People must be stopped walking on the grass.
