被动语态导学案

1、被动语态(ThePassiveVoice)Step1.Leadin:Play a guessing game.Step2.PresentationPart1.Whatisthepassivevoice?主动语态与被动语态： 英语中有两种语态,即主动语态(The Active Voice)与被动语态（The Passive Voice)。a.主动语态表示主语是动作的执行者;b.被动语态表示主语是动作的承受者。判断下面两组句子的语态：1.Manystudents study English . English is studied by many students. 2.They do their

2、 homework every day. Their homework is done by them every day.According to these sentences, please sum up(总结)the structure（结构）of the passive voice.Teenagersshould be allowedto choose their own clothes.English is spoken by many people . The telephonewas invented byBell. The classroom is cleanedby us

3、every day. 被动语态的结构： Part2.How to change the active voice into the passive voice.1.把原来的宾语提到前面作被动语态的主语;2.把动词变成“be+过去分词”注意人称，时态和数的变化;3.主动语态中的主语变为介词by的宾语Part3.Thepassivevoiceindifferenttenses一般现在时：am/are/is+及物动词过去分词Practice: 1.They play football on Sunday.2.They often use computers in class. 3.Lucy does

4、 the homework in the evening.一般过去时的被动语态：was/were+及物动词过去分词Practice1.They built the tall building last year. 2.We cleaned our classroom yesterday. 3.I watered the trees last week. 含有情态动词的被动语态：情态动词+be + donePractice:1.He can take care of the baby.2.Lucy may draw the pictures.3.You must turn off the lig

5、hts.Step3.Practice.Part1:Fill in the blanks.1.People use knives for cutting things. Knives for cutting things.2.The students clean the windows of their classroom twice a month.The windows of their classroomtwice a month.3.I found the ticket on the floor._ _ on the floor.4.I told her to return the bo

6、ok in time.She _ _ to return the book in time.5. Last year we built a library in ourschool.A library _ _ in our school last year.6.Now people can use computers to help them.Now computers _ _ _ to help them.7.The teacher asked Tom to turn on the computer.Tom _ _ to turn on the computer.8.In this fact

7、ory women do most of the work.Most of the work _ _ by women in this factory.9.He can repair the bike in two days.The bike _ _ in two days.10.You must take this medicine three times a day.This medicine _ _ _ three times a day.Part2 Have a try.1.He 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 class.5.We didnt work out the problem.6.Did Mary finish the work?7. His mother