Unit 7Grammar Focus----4c.pptx

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1、Unit7Teenagers should be allowed to choose their own clothes.Section A Grammar Focus4c 东东五五家子中学家子中学 张宁宁张宁宁 He cleans his bedroom every day.动作执行者动作执行者 谓语动词谓语动词 动作承受动作承受者者 其他成分其他成分His bedroom is cleaned by him every day.被动语态 主动语态 动作动作承受者承受者谓语动词谓语动词 动作执行者动作执行者其他成分其他成分被被动语态在英语中，动词有两种语态，即在英语中，动词有两种语态，即主动

2、语态主动语态和和被动语态被动语态。主动语态表示。主动语态表示主语主语是动作的是动作的执行者执行者，被动语态表示，被动语态表示主语主语是动作的是动作的承受承受者者。在前面两个单元我们已经学习了一般。在前面两个单元我们已经学习了一般现在时和一般过去时的被动语态，他们的现在时和一般过去时的被动语态，他们的结构为：结构为：is/are+及物动词的过去分词，及物动词的过去分词，was/were+及物动词的过去分词及物动词的过去分词Teenagers should（not）be allowed to get their ears pierced.Teenagers should be allowed to

3、 choose their own clothes.Teenagers should not be allowed to smoke.Sixteen-year-olds should not be allowed to drive.Teenagers should be allowed to have part-time jobs.根据课本内容，完成下列句子。根据课本内容，完成下列句子。1.我认为不应该允许岁的青少年开车。I dont think sixteen-year-olds to drive.2.我同意。他们还不够严谨。I agree.They arent 3.你认为应该鼓励青少年去自

4、己做决定吗？Do you think teenagers to make their own decisions?4不，我不认同这个，青少年还太小不能自己做决定。No,I dont agree with this.Teenagers are make theirowndecisions.decisions.should beallowedserious enoughshould be encouragedtoo young to5.不应该允许青少年去做兼职Teenagers_tohavepart-timejobs.6.我不同意，他们可以在工作中学到很多。Idisagree.Theycan_al

5、ot_working.7.你认为不用闪光灯的话可以允许我们拍照吗？Doyouthinkwe_totakephotosifwedontuseaflash.8.如果不用闪光灯的话拍照是可以的。Ifyoudontuseaflash,thenitOK.should not be allowedlearnfrommay be allowedmay be思考思考1：含有情态动词的被动语态的构成含有情态动词的被动语态的构成：思考2含有情态动词的被动语态的否定句和疑问句 的构成？否定句：一般疑问句：情态动词情态动词+be+动词的过去动词的过去分词分词 +其他其他情态动词后情态动词后+not将句子中的情态动词提

6、前将句子中的情态动词提前1.You must clean your bedroom every day.Your bedroom_2.Parents should encourage teenagers to do social work for their community.Teenagers _ _must be cleaned every day.should be encouraged to do social work for their community 4.Parents should give teenagers chances to make their own deci

7、sions.Teenagers_ _ 5.Do you think we must keep teenagers away from the Internet?Do you think teenagers_ _ should be given chances(by their parents)to make their own decisions.must be kept away from the Internet(by us)?知识拓展知识拓展思考思考1：如何将下列的主动句变为被动语态1.We gave him some books.Some books _ _ _him(by us).注

8、意注意问题问题1：带有双宾语（宾语即有人又有物）的被动结构是：将直接宾语（物）变为主语，一般要在间接宾语（人）前加介词to 或for.were taken to 思考思考2.Great changes()in the past ten years in China.A.took place B.have been taken place C.were taken place D.have taken place 判断下列句子的正误(1)It will happen in 50 years.()(2)It will be happened in 50 years.()注意问题注意问题2：不及物动

9、词：take place,happen，begin,become，come out，disappear等 无被动无被动 Dx 思考思考3：选择1.The pen _well.A.is written B.writes2.The music _nice.A.sounds B.is sounded注意问题注意问题3：有些动词的主动形式表示被动含义 如read,sell,last,wash,write等带状语 (well,easily）时。e g:Her books sells well.BA思考思考4：把主动语态变为被动语态：把主动语态变为被动语态 I saw him fall off the t

10、ree.He _ _ _fall off the tree.注意问题注意问题4：一些动词如：make,see,hear,watch 等，后接宾语补足语为不带“to”的不定式时，变被动语态时要加上“to”was seen to1,What are teenagers allowed to do in Western countries when they are eighteen?2,Do teenagers move out in most Asian societies?3,What do Chinese parents think about it?4,What is common for

11、 adults in China?Why?In many Western countries,teenagers are allowed to move out at eighteen.No,they dont.Chinese parents believe that it is better for children to live with parents who can take care of them.Many adults continue to live with their parents is commonin China.Because the young should t

12、hen look after their parents as they get older.Should teenagers_(ask)to move out when they start working?In many western countries,teenagers_(allow)to move out at eighteen.Their parents believe that they should _(educate)to take care of themselves from a young age.This way,when they_(start)working t

13、hey can manage their own lives.However,in most Asian societies,it is not common for teenagers to _(move)out.be askedare allowedbe educatedstartmoveChinese parents believe that it is better for children to live with parents who can _(take)care of them.But the young should then look after their parents as they get older.That is why many Chinese adults _(continue)to live with their parents.takecontinue