九年級(jí)上冊(cè)英語人教版SectionA第3課時(shí)Unit7Teenagersshouldbeallowedtochoosetheirownclothes.Thefloormustbeswept.Thefacemustbewashed.Thebedmustbemade.Whatmustbedoneathomeasachild?Leadin

Theteethmustbebrushed.Studentsshouldn’tbeallowedtoruninthehallways.Studentsshouldn’tbeallowedtoeatintheclassroomStudentsshouldn’tbeallowedtofightwithothers.Whatshouldn’tbeallowedtodoasastudent?SchoolRulesStudentsshouldn’tbeallowedtoarrivelateforschool.一般現(xiàn)在時(shí)的被動(dòng)語態(tài)含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)一般過去時(shí)的被動(dòng)語態(tài)am/is/are+動(dòng)詞的過去分詞was/were+動(dòng)詞的過去分詞Review?被動(dòng)語態(tài)(passivevoice)Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?No,Idon’tagreewiththis.Teenagersaretooyoungtomaketheirowndecisions.Teenagersshouldnotbeallowedtohavepart-timejobs.Idisagree.Theycanlearnalotfromworking.Doyouthinkwemaybeallowedtotakephotosifwedon’tuseaflash?Ifyoudon’tuseaflash,thenitmaybeOK.Idon’tthinksixteen-year-oldsshouldbeallowedtodrive.Iagree.Theyaren’tseriousenough.GrammarFocus含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)：情態(tài)動(dòng)詞+be+動(dòng)詞的過區(qū)分詞Findthepassivevoicefindoutthecommonfeatures.Presentation情態(tài)動(dòng)詞can/couldmay/mightwill/wouldshall/shouldmustoughtto1.情態(tài)動(dòng)詞無時(shí)態(tài)和人稱的變化；2.情態(tài)動(dòng)詞后加動(dòng)詞原形Presentation含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)的句式結(jié)構(gòu)1.Teenagersshouldbeallowedtobuytheirownclothes.2.Teenagersshouldbeallowedtogooutwithfriends.3.Teenagersshouldnotbeallowedtogettheirearspierced.4.Teenagersshouldnotbeallowedtohavepart-timejobs.5.Shouldwebeallowedtoeatintheclass?6.Shouldwebeallowedtoruninthehallways?先把下列句子分類，總結(jié)句型結(jié)構(gòu)肯定句：

+

+

+

+其他內(nèi)容否定句：

+

+

+

+

+其他內(nèi)容.一般疑問句：

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+

+

+其他內(nèi)容？主語情態(tài)動(dòng)詞bedone主語情態(tài)動(dòng)詞notbedone情態(tài)動(dòng)詞主語bedone肯定句否定句一般疑問句Presentation易錯(cuò)點(diǎn)一Paperandwater

wastedbypeople.A.willbenot B.willnotbe C.shouldbenot D.shouldnotbe2.In2050,2G

usedintheworld. A.willbenot B.willnotbe C.shouldbenot D.shouldnotbe表達(dá)否定時(shí)，“not”接在情態(tài)動(dòng)詞后。否定句:主語+情態(tài)動(dòng)詞+not+be+動(dòng)詞過去分詞1.Shouldclassroombecleanedbystudents?2.Mustbemyroomcleanedbymyselfnow?3.Shouldbefoodwastedbypeople? 4.Canthehomeworkbefinishedtomorrow?5.Canbemoonseenatnight?疑問句中，情態(tài)動(dòng)詞后緊跟主語。TureorFalsemyroombefoodbemoonbe易錯(cuò)點(diǎn)二一般疑問句:情態(tài)動(dòng)詞+主語+be+動(dòng)詞過去分詞？句式結(jié)構(gòu)示例肯定句主語+情態(tài)動(dòng)詞+be+及物動(dòng)詞的過去分詞Teenagersshouldbeallowedtogoshopping.否定句主語+情態(tài)動(dòng)詞+not+be+及物動(dòng)詞的過去分詞Thewordcan’tbeusedinthissentence.一般疑問句情態(tài)動(dòng)詞+主語+be+及物動(dòng)詞的過去分詞?Musttheworkbefinishedtoday?特殊疑問句Whoshouldbeaskedforhelp?特殊疑問詞+被動(dòng)語態(tài)的一般疑問句？ConclusionHecleanshisbedroomeveryday.Hisbedroomiscleanedbyhimeveryday.動(dòng)作執(zhí)行者謂語動(dòng)詞動(dòng)作承受者其他成分其他成分動(dòng)作執(zhí)行者動(dòng)作承受者謂語動(dòng)詞主動(dòng)語態(tài)被動(dòng)語態(tài)主動(dòng)語態(tài)轉(zhuǎn)換為被動(dòng)語態(tài)用被動(dòng)語態(tài)改寫下面\三個(gè)句子。1.Hecleanshisbedroomeveryday.2.Hecleanedhisbedroomyesterday.3.Heshouldcleanhisbedroominthemorning.Hisbedroomiscleanedbyhimeveryday.Hisbedroomwascleanedbyhimyesterday.Hisbedroomshouldbecleanedbyhiminthemorning.__________________________________________________________________________________________________________Exercise含有情態(tài)動(dòng)詞的主動(dòng)句變?yōu)楸粍?dòng)句時(shí)，有如下步驟：（1）把主動(dòng)句的賓語變?yōu)楸粍?dòng)句的主語；（2）主動(dòng)句中的謂語變?yōu)椤扒閼B(tài)動(dòng)詞+be+及物動(dòng)詞的過去分詞”；（3）主動(dòng)句的主語在被動(dòng)句中變?yōu)閎y的賓語；（4）其他成分不變。主動(dòng)句：Weshouldplanttreesinspring.被動(dòng)句：Treesshouldbeplantedinspring.含有情態(tài)動(dòng)詞的主動(dòng)句與被動(dòng)句之間的轉(zhuǎn)換Youmustcleanyourbedroomeveryday.

Yourbedroom____________________________.Iwilldothehouseworkintheafternoon.

Thehouseworkwill________________________.3.Parentswillencouragetheirchildrentodosocialworkfortheircommunity.Children___________________________________________________________________.mustbecleanedeverydayshouldbeencouraged(bytheirparents)todosocialworkforbedoneintheafternoontheircommunity4aRewritethesentencesaccordingtotheexamples.4.Doyouthinkwemustkeepteenagersaway

fromtheInternet?Doyouthinkteenagers___________________________?5.Parentsshouldgiveteenagerschancestomaketheirowndecisions.Teenagers_______________________________________.mustbekeptawayfromtheInternet

shouldbegivenchancestomaketheirowndecisionskeepsb./sth.awayfrom“使某人/某物遠(yuǎn)離······”chancen.

機(jī)會(huì)；可能性Rewritethesentencesaccordingtotheexamples.4aShouldteenagers__________(ask)tomoveoutwhentheystartworking?InmanyWesterncountries,teenagers_____________(allow)tomoveoutateighteen.Theirparentsbelievethattheyshouldbeeducatedtotakecareofthemselvesfromayoungage.Thisway,whenthey_________(start)workingtheycanmanagetheirownlives.

beasked

areallowed

startHowever,inmostAsiansocieties,itisnotcommonforteenagersto________(move)out.Chineseparentsbelievethatitisbetterforchildrentolivewithparentswhocan_________(take)careofthem.Buttheyoungshouldthenlookaftertheirparentsastheygetolder.ThatiswhymanyChineseadults______________(continue)tolivewiththeirparents.

continue

move

takev.完成（困難的事）；應(yīng)付（困難局面）4bFillintheblankswiththecorrectformsofthewordsinbrackets.YouandyourfriendarestartinganEnglishclub.Makealistofrulesaboutwhatshouldandshouldnotbeallowed.4cMembersshouldbeallowedtousedictionaries.Yes,buttheyshouldonlyuseEnglish-Englishdictionaries.YouandyourfriendarestartinganEnglishclub.Makealistofrulesaboutwhatshouldandshouldnotbeallowed.4cMembersshouldn’tbeallowedtospeakChinese.Iagree.Onlyinthiswaycanyouimprove

yourEnglish.YouandyourfriendarestartinganEnglishclub.Makealistofrulesaboutwhatshouldandshouldnotbeallowed.4cKeywordscommunity,chance,educate,manage,societyUsefulexpressionsSentences①Idon'tthinksxitee-year-oldsshouldbeallowedtodrive.②Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?keep...awayfrom,makeone'sowndecisionGrammar

含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)SummaryC

1.Weshouldmanage___________ourhouse.A.do B.did C.todo D.doing2.Duringthewintervacation,hewasn’tallowed__________TVeveryday.A.watching B.towatch C.watches D.watch3.Teenagersare_________young_________maketheirowndecisions.A.so;that B.too;to C.such;thatD.so;toB

B

一、單項(xiàng)選擇。Exercise二、

用所給詞的適當(dāng)形式填空。1.Theirworkmust____________(finish)byfouro’clock.2.Yourhomeworkshould__________(do)byyourself.3.Thesebooksmustn’t__________(take)outofthereadingroom.4.Shouldthesefood_________(keep)dry?befinishedbedonebetakenbekeptExercise三.

按要求完成下列各句每空一詞含縮寫。1.

Wemustdotheworkrightnow.(改為被動(dòng)語態(tài))___________________________________rightnow.2.Teenagersshouldbeallowedtogooutwiththeirf