SectionAGrammarFocus-4cTosummarizethepassivevoicewiththemodalverbs.Tolearntousethegrammarproperly.Tolearnsomeforeignculturesandlearn

tomakerules.Objectivescryallnightstaybyone’ssidesleepinwarmarmsrunthroughthefieldmakesurekeepsb.fromdangergivesb.ahugliftuptalkback整夜哭待在某人身邊睡在溫暖的臂彎里穿過田野確定；確保使某人遠(yuǎn)離危險(xiǎn)擁抱某人舉起，提起回嘴；頂嘴Translatethephrases.Reviewwatchscarymoviesgivesb.awfuldreamsbebackbytenthinkbacktothosetimescoughfordayshavescarydreamsbelateforschoolstayoutregretdoingsth.看恐怖電影帶給某人惡夢在10點(diǎn)前回來回想那些時(shí)光咳嗽好幾天做可怕的夢上學(xué)遲到待在外面；不回家后悔做過某事Whatcanyoudoatschool?Whatcan’tyoudoatschool?Doyouagreeordisagree?FreetalkIthinkstudentsshouldbeallowedtodohomeworkwithfriends.Sixteen-year-oldsshouldnotbeallowedtodrive.Doyouthinksixteen-year-oldsshouldbeallowedtochoosetheirownclothes?Lookatthesesentences.含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)肯定句：主語+情態(tài)動(dòng)詞+be+動(dòng)詞過去分詞.否定句：主語+情態(tài)動(dòng)詞+not+be+動(dòng)詞過去分詞.疑問句：情態(tài)動(dòng)詞+主語+be+動(dòng)詞過去分詞?(一)將主動(dòng)語態(tài)的賓語變成被動(dòng)語態(tài)的主語。(二)將含情態(tài)動(dòng)詞的主動(dòng)句式變成被動(dòng)句式，即：“情態(tài)動(dòng)詞+動(dòng)詞原形”變成“情態(tài)動(dòng)詞+be+過去分詞”，然后再在其后加“by+主動(dòng)句中的主語(人稱代詞用賓格)”。by短語也可省略。請看下列各句：轉(zhuǎn)變方法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含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)常用的情態(tài)動(dòng)詞有：can,could(能；會(huì)),may;might(可以)

must(必須),should(應(yīng)該),will;would(愿意)haveto(必須；不得不),hadbetter(最好)1.含有情態(tài)動(dòng)詞should的被動(dòng)語態(tài)結(jié)構(gòu)式：

should+be+及物動(dòng)詞的過去分詞。

(1)肯定句結(jié)構(gòu)為：主語+shouldbe+及物動(dòng)詞

的過去分詞+(by+賓語)。

eg:你應(yīng)該自己完成作業(yè)。

Yourhomeworkshouldbefinishedby

yourself.含有情態(tài)動(dòng)詞should的被動(dòng)語態(tài)

(2)否定結(jié)構(gòu)為：主語+should+not+be+及物動(dòng)詞

的過去分詞+(by+賓語)。

eg：不應(yīng)該允許青少年晚上外出。

Teenagersshouldnotbeallowedtogooutatnight.

(3)特殊疑問句結(jié)構(gòu)為：疑問詞+一般疑問句？

eg：應(yīng)該允許學(xué)生們做什么？

Whatshouldstudentsbeallowedtodo?

(4)一般疑問句結(jié)構(gòu)為：Should+主語+be+及物動(dòng)詞

的過去分詞+(by+賓語)？回答：Yes,主語+should./No,主語+shouldn’t.

eg:這些小樹應(yīng)該每天澆水嗎？

Shouldtheseyoungtreesbewateredeveryday?

Yes,theyshould./No,theyshouldn’t.對(duì)，應(yīng)該。/不，不應(yīng)該。主動(dòng)句變被動(dòng)句的步驟與其它情況相同。WeshouldallowteenagerstowatchTVonSunday.TeenagersshouldbeallowedtowatchTVonSunday(byus).Peoplemaycatchfishintheriver.Fishmaybecaughtintheriver(bypeople).1.Icanfinishthework.Theworkcanbefinishedbyme.一般疑問句：

Cantheworkbefinishedbyyou?2.We

shouldplantmanymoretrees.Manymoretreesshouldbeplantedbyus.一般疑問句：

Shouldmanymoretreesbeplantedbyus?Teenagers

shouldbeallowed

todrivethecar.3.Parentsshouldallowteenagerstodrivethecar.一般疑問句：

Should

teenagers

beallowed

todrivethecar?Trees

mustbewatered

everyday.4.Theymustwatertreeseveryday.一般疑問句：

Must

trees

bewatered

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

shouldbeallowedtochoosetheirownclothes.

應(yīng)該允許青少年選擇他們自己的服裝。?Students

shouldnotbeallowedtohavepart-timejobs.

不應(yīng)該允許學(xué)生們做兼職工作。?Can

thesebooks

betakenoutofthereadingroom?

可以把這些書帶出閱覽室嗎？?When

must

thework

befinished?

這些工作必須什么時(shí)候完成？1.Youmustcleanyourbedroomeveryday.Yourbedroommustbecleanedeveryday.2.Parentsshouldencourageteenagerstodosocialworkfortheircommunity.3.CanLucydoherhomeworktomorrowinstead?Teenagersshouldbeencouraged(bytheirparents)todosocialworkfortheircommunity.Canthehomeworkbedone(byLucy)tomorrowinstead?4a

Rewritethesentencesaccordingtotheexample.4.DoyouthinkwemustkeepteenagersawayfromtheInternet?5.Parentsshouldgiveteenagerschancestomaketheirowndecisions.DoyouthinkteenagersmustbekeptawayfromtheInternet?Teenagersshouldbegivenchancestomaketheirowndecisions.Shouldteenagers________(ask)tomoveoutwhentheystartworking?InmanyWesterncountries,teenagers__________(allow)tomoveoutateighteen.Theirparentsbelievethattheyshould___________(educate)totakecareofthemselvesfromayoungage.Thisway,whenthey_________(start)workingtheycanmanagetheirownlives.4b

Fillintheblankswiththecorrectformsofthewordsinbrackets.beaskedareallowedbeeducatedstartHowever,inmostAsiansocieties,itisnotcommonforteenagersto_______(move)out.Chineseparentsbelievethatitisbetterforchildrentolivewithparentswhocan______(take)careofthem.Buttheyoungshouldthenlookaftertheirparentsastheygetolder.ThatiswhymanyChineseadults__________(continue)tolivewiththeirparents.movetakecontinue4cYouandyourfriendarestartinganEnglishClub.Makealistofrulesaboutwhatshouldandshouldnotbeallowed.SampleDialogue1

A:Membersshouldbeallowedtousedictionaries.B:Yes,buttheyshouldonlyuseEnglish-Englishdictionaries.MembersareallowedtouseEnglish-Englishdictionaries.A:Membersshouldn’tbeallowedtospeakChinese.B:Iagree.OnlyinthiswaycanyouimproveyourEnglish.SampleDialogue21.Theirworkmust__________(finish)byfouro’clock.2.Yourhomeworkshould________(do)byyourself.3.Thesebooksmustn’t__________(take)outofthereadingroom.4.Shouldthesefood_________(keep)dry?befinishedbedonebetakenbekeptⅠ.用所給詞的適當(dāng)形式填空。ExercisesⅡ.按要求完成下列各句。1.Wemustdotheworkrightnow.(改為被動(dòng)語態(tài))____________________________rightnow.Theworkmustbedone2.Teenagersshouldbeallowedtogooutwiththeirfriendsonschoolnights.(改為否定句)Teenagers_____________________togooutwiththeirfriendsonschoolnights.3.Abookshouldbereadeachmonth.(改為一般疑問句)

_____________________________eachmonth?shouldn’tbeallowedShouldabookbereadⅢ.翻譯下列句子。1.需要好好地教育青少年。_____________________________________2.這輛小汽車不能修了。____________________________________3.這封信必須現(xiàn)在寄出去嗎？____________________________________4.會(huì)議應(yīng)該在哪舉行？_________________________________