情态动词被动语态

1、关于情态动词的被动语态第一张，PPT共十一页，创作于2022年6月 语态的种类： 和 。主动语态：表示主语是 。 被动语态：表示主语是 。被动语态结构：be+p.p.(动词的过去分词)情态动词的被动语态：情态动词+ be+p.p问题：情态动词+ be+p.p. 这一结构怎么进行句型转换？主动语态被动语态 情态动词被动语态动作的执行者动作的承受者第二张，PPT共十一页，创作于2022年6月含有情态动词的句子进行句型转换时只针对 ，要么在后 , 把 提前。例子:1We should allow teenagers to watch 主语 谓语动词 宾语Tv on the weekend . 2教室

2、必须天天打扫Classroom every day .情态动词Teenagers should be allowed to watch Tvon Sunday( by us) .must be cleaned加not情态动词第三张，PPT共十一页，创作于2022年6月3稻谷不应该种在山上Rice on the hill.4.You must not take these magazines out of the reading-room. These magazines out ofthe reading-room.5.We should plant many trees on the mou

3、ntains. shouldnt be plantedmust not be taken第四张，PPT共十一页，创作于2022年6月Many trees on the mountains. 6.应该允许青少年和朋友们一起出去。Teenagers to go out with their friends.7.孩子们应当被允许星期五晚上和朋友们一起去看电影。 The children to go to the movies with friends on Friday nights. should be plantedshould be allowedshould be allowed第五张，PP

4、T共十一页，创作于2022年6月8.木头能做桌子吗？是的，能。 tables of wood ? Yes , they of wood.9.废纸不应该扔在这里。 Waste paper here. 10.这件事应该是李明干吗？ the thing by Li Ming？ Can be madecan be madeshould not be thrownShouldbe done第六张，PPT共十一页，创作于2022年6月11.Parents should allow fourteen-year-olds to choose their own clothes. Fourteen-year-o

5、lds to choose their own clothes （by parents）12.Teachers can use cartoons to give examples in class about aids.Kartoons to give examples in class about aids.should be allowedcan be used第七张，PPT共十一页，创作于2022年6月13.He can fix the computer. The computer by him.14.Students may use the computers here. The co

6、mputers by students.15. You must water the flower now.The flower by you now.can be fixedmay be usedmust be watered第八张，PPT共十一页，创作于2022年6月16. You should water the flower now.The flower by you now17.Wecanrepairthiswatchintwo.18.We should do the work as soon as possible. The work as soon as possible.This watch can be repaired in two daysshould be wateredshould be done第九张，PPT共十一页，创作于2022年6月19.You must pay attention to your pronunciationYour pronunciation attention to (by you).20. We can finish the work in two days. The work in two days 21.You can dig a hole in the earth