1、语法学习,含情态动词的被动语态,Grammatical Study,Passive Voice with Modal Verbs,By Sonny Wong,含情态动词的被动语态,常用的情态动词有：,can,could(能；会),may;might(可以)must(必须),should(应该),would(愿意)have to(必须；不得不),had better(最好做),主动句变被动句的步骤与其它情况相同。,1.We should allow teenagers to watch TV on Sunday.,Teenagers should be allowed to watch TV o
2、n Sunday(by us).,2.My mother can cook delicious meals.Delicious meals can be cooked(by my mother).,3.People may catch fish in the river.,Fish may be caught in the river(by people).,4.we must keep teenagers away from the Internet?Teenagers must be kept away from the Internet.,can/could must should ma
3、y/might had better have to,情态动词+be+过去分词,be done,结构,1.The flowers _often.A.must be water B.must be watered C.must watered D.must water2.The books may_ for two weeks.A.be kept B.be borrowed C.keep D.borrow3 The broken bike_ here by Mr Smith.A.can mend B.can mended C.can be mend D.can be mended4.Young
4、trees should _ every year.A.be plantedB.planted C.plant D.are planted,1.Your homework should be finished first.Your homework shouldnt be finished first.Should your homework be finished first?2.This magazine can be taken home.This magazine cant be taken home.Can this magazine be taken home?,3.Trees m
5、ust be watered every day.Trees mustnt be watered every day.Must trees be watered every day?,情态动词+not+be+过去分词,can/could must should may/might had better,not be done,否定式,情态动词+主语+be+过去分词,Can/Could Must Should May,+主语 be done？,一般疑问式,疑问词+情态动词+主语+be+过去分词,can/could must should may/might,+主语 be done？,疑问词,特殊疑问式,When must this task be finished?这项任务必须在什么时候完成？,含情态动词的被动语态,肯定句:主语+情态动词+be+动词过去分词.否定句:主语+情态动词+not+be+动词过去分词.一般疑问句:情态动词+主语+be+动词过去分词?,特殊疑问句：特殊疑问词+情态动词+主语+be+过去分词？,Thanks for your Review!,
