2023学年完整公开课版九年级Unit7Teenagersshouldbeallowedtochoo

Tounderstandthegrammarshouldbeallowedtodo.Topracticethepassivevoice.Ifyoulike,youcandomoreexercises.Objectivescryallnightstaybyone’ssidesleepinwarmarmsrunthroughthefieldmakesurekeepsb.fromdangergivesb.ahugliftuptalkback整夜哭待在某人身边睡在温暖的臂弯里穿过田野确定；确保使某人远离危险拥抱某人举起，提起回嘴；顶嘴Translatethephrases.Reviewwatchscarymoviesgivesb.awfuldreamsbebackbytenthinkbacktothosetimescoughfordayshavescarydreamsbelateforschoolstayoutregretdoingsth.看恐怖电影带给某人恶梦在10点前回来回想那些时光咳嗽好几天做可怕的梦上学迟到待在外面；不回家后悔做过某事Whatcanyoudoatschool?Whatcan’tyoudoatschool?Doyouagreeordisagree?FreetalkIthinkstudentsshouldbeallowedtodohomeworkwithfriends.Sixteen-year-oldsshouldnotbeallowedtodrive.Doyouthinksixteen-year-oldsshouldbeallowedtochoosetheirownclothes?Lookatthesesentences.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.疑问句:情态动词+主语+be+动词过去分词?(一)将主动语态的宾语变成被动语态的主语。(二)将含情态动词的主动句式变成被动句式，即：“情态动词+动词原形”变成“情态动词+be+过去分词”，然后再在其后加“by+主动句中的主语(人称代词用宾格)”。by短语也可省略。请看下列各句：转变方法1.Youshouldfinishyourhomeworkfirst.Yourhomeworkshouldbefinished(byyou)first.2.Youcantakethismagazinehome.Thismagazinecanbetakenhome(byyou).GrammarFocusIdon'tthink16-year-oldsshouldbeallowedtodrive.Iagree.Theyaren'tseriousenough.Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?No,Idon'tagreewiththis.Teenagersaretooyoungtomaketheirowndecisions.Teenagersshouldnotbeallowedtohavepart-timejobs.Idisagree.Theycanlearnalotfromworking.Doyouthinkwemaybeallowedtotakephotosifwedon'tuseaflash?Ifyoudon'tuseaflash,thenitmaybeokay.1.Idon'tthink16-year-oldsshouldbeallowedtodrive.2.Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?3.Teenagersshouldnotbeallowedtohavepart-timejobs.4.Doyouthinkwemaybeallowedtotakephotosifwedon'tuseaflash?A.Idisagree.Theycanlearnalotfromworking.B.Ifyoudon'tuseaflash,thenitmaybeokay.C.Iagree.Theyaren'tseriousenough.D.No,Idon'tagreewiththis.Teenagersaretooyoungtomaketheirowndecisions.C

D

AB

Practicethegrammar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),will;would(愿意)haveto(必须；不得不),hadbetter(最好)1.含情态动词should的被动语态结构式：

should+be+及物动词的过去分词。

(1)肯定句结构为：主语+shouldbe+及物动词的过去分词+(by+宾语)。

eg:你应该自己完成作业。

Yourhomeworkshouldbefinishedby

yourself.含情态动词should的被动语态

(2)否定结构为：主语+should+not+be+及物动词的过去分词+(by+宾语)。

eg：不应该允许青少年晚上外出。

Teenagersshouldnotbeallowedtogooutatnight.

(3)特殊疑问句结构为:疑问词+一般疑问句？

eg：应该允许学生们做什么？

Whatshouldstudentsbeallowedtodo?

(4)一般疑问句结构为:Should+主语+be+及物动词的过去分词+(by+宾语)？回答:Yes，主语+should./No，主语+shouldn’t.

eg:这些小树应该每天浇水吗？

Shouldtheseyoungtreesbewateredeveryday?

Yes,theyshould./No,theyshouldn’t.对，应该。/不，不应该。主动句变被动句的步骤与其它情况相同。WeshouldallowteenagerstowatchTVonSunday.TeenagersshouldbeallowedtowatchTVonSunday(byus).Peoplemaycatchfishintheriver.Fishmaybecaughtintheriver(bypeople).1.Icanfinishthework.Theworkcanbefinishedbyme.一般问句：

Cantheworkbefinishedbyyou?2.We

shouldplantmanymoretrees.Manymoretreesshouldbeplantedbyus.一般问句：

Shouldmanymoretreesbeplantedbyus?Teenagers

shouldbeallowed

todrivethecar.3.Parentsshouldallowteenagerstodrivethecar.一般问句：

Should

teenagers

beallowed

todrivethecar?Trees

mustbewatered

everyday.4.Theymustwatertreeseveryday.一般问句：

Must

trees

bewatered

everyday?1.Sixteen-year-oldsshouldbeallowedtodrive.(改为否定句)Sixteen-year-oldsshouldn’tbeallowedtodrive.2.Ithinktheworkshouldbedoneatonce.(改为否定句)Idon’tthinktheworkshouldbedoneatonce.►Teenagers

shouldbeallowedtochoosetheirownclothes.

应该允许青少年选择他们自己的服装。►Students

shouldnotbeallowedtohavepart-timejobs.

不应该允许学生们做兼职工作。►Can

thesebooks

betakenoutofthereadingroom?

可以把这些书带出阅览室吗？►When

must

thework

befinished?

这些工作必须什么时候完成？1.Youmustcleanyourbedroomeveryday.

Yourbedroommustbecleanedeveryday.2.Parentsshouldencourageteenagerstodosocialworkfortheircommunity.3.CanLucydoherhomeworktomorrowinstead?Teenagersshouldbeencouraged(bytheirparents)todosocialworkfortheircommunity.Canthehomeworkbedone(byLucy)tomorrowinstead?4a

Rewritethesentencesaccordingtotheexample.4.DoyouthinkwemustkeepteenagersawayfromtheInternet?5.Parentsshouldgiveteenagerschancestomaketheirowndecisions.DoyouthinkteenagersmustbekeptawayfromtheInternet?Teenagersshouldbegivenchancestomaketheirowndecisions.Thekeysbeaskedareallowed4b

Fillintheblankswiththecorrectformsofthewordsinbrackets.beeducatedstartmovetakecontinue4cYouandyourfriendarestartinganEnglishClub.Makealistofrulesaboutwhatshouldandshouldnotbeallowed.SampleDialogue1

A:Membersshouldbeallowedtousedictionaries.B:Yes,buttheyshouldonlyuseEnglish-Englishdictionaries.MembersareallowedtouseEnglish-Englishdictionaries.A:Membersshouldn’tbeallowedtospeakChinese.B:Iagree.OnlyinthiswaycanyouimproveyourEnglish.SampleDialogue2Ⅰ.按要求完成下列各句。1.Wemustdotheworkrightnow.(改为被动语态)____________________________rightnow.TheworkmustbedoneExercises2.Teenagersshouldbeallowedtogooutwiththeirfriendsonschoolnights.(改为否定句)Teenagers_____________________togooutwiththeirfriendsonschoolnights.3.Abookshouldbereadeachmonth.(改为一般疑问句)

___________________________________eachmonth?shouldn’tbeallowedShouldabookberead4.你可以稍后考试。Youcan_____________________later.5.这项工作必须按时完成。Theworkmust______________ontime.6.应允许青少年培养自己的爱好。Teenagers_____________________todeveloptheirownhobbies.takethetestbefinishedshouldbeallowed1.Theirworkmust____________(finish)byfouro’clock.2.Yourhomeworkshould__________(do)byyourself.3.Thesebooksmustn’t__________(take)outofthereadingroom.4.Shouldthesefood_________(keep)dry?befinishedbedonebetakenbekeptII.用所给词的适当形式填空。Ⅲ.句型转换。1.Youshouldmakeupthebedeveryday.(改为被动语态)Thebed_____________________upeveryday.2.Wecan’tseestarsinthedaytime.(改为被动语态)Stars_____________________inthedaytime.3.Youmustreturnthebookontime.(改为被动语态的一般疑问句形式)_______thebook______________ontime?should