被動語態(tài)導(dǎo)學(xué)案

1、被動語態(tài)(ThePassiveVoice)Step1.Leadin:Play a guessing game.Step2.PresentationPart1.Whatisthepassivevoice?主動語態(tài)與被動語態(tài)： 英語中有兩種語態(tài),即主動語態(tài)(The Active Voice)與被動語態(tài)（The Passive Voice)。a.主動語態(tài)表示主語是動作的執(zhí)行者;b.被動語態(tài)表示主語是動作的承受者。判斷下面兩組句子的語態(tài)：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(總結(jié))the structure（結(jié)構(gòu)）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. 被動語態(tài)的結(jié)構(gòu)： Part2.How to change the active voice into the passive voice.1.把原來的賓語提到前面作被動語態(tài)的主語;2.把動詞變成“be+過去分詞”注意人稱，時態(tài)和數(shù)的變化;3.主動語態(tài)中的主語變?yōu)榻樵~by的賓語Part3.Thepassivevoiceindifferenttenses一般現(xiàn)在時：am/are/is+及物動詞過去分詞Practice: 1.They play football on Sunday.2.They often use computers in class. 3.Lucy does

4、 the homework in the evening.一般過去時的被動語態(tài)：was/were+及物動詞過去分詞Practice1.They built the tall building last year. 2.We cleaned our classroom yesterday. 3.I watered the trees last week. 含有情態(tài)動詞的被動語態(tài)：情態(tài)動詞+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