情態(tài)動詞的被動語態(tài)

情態(tài)動詞被動語態(tài)課件Unit7Teenagersshouldbeallowedtochoosetheirownclothes.SectionAGrammarFocusGrammarFocusIdon’tthinksixteen-year-oldsshouldbeallowedtodrive.Iagree.Theyaren’tserious

enough.Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?

Teenagersshouldnotbeallowedtohavepart-timejobs.No,Idon’tagreewiththis.Teenagersaretooyoungtomaketheirowndecisions.

Idisagree.Theycanlearnalotfromworking.

Ifyoudon’tuseaflash,thenitmaybeOK.Doyouthinkwemaybeallowedtotakephotosifwedon’tuseaflash?

1.含情態(tài)動詞should的被動語態(tài)結(jié)構(gòu)式：

should+be+及物動詞的過去分詞。

(1)肯定句結(jié)構(gòu)為：主語+shouldbe+及物動詞的過去分詞+(by+賓語）.

eg:你應(yīng)該自己完成作業(yè)。

Yourhomeworkshouldbefinishedbyyourself.

(2)否定結(jié)構(gòu)為：主語+should+not+be+及物動詞的過去分詞+(by+賓語).

eg：不應(yīng)該允許青少年晚上外出。

Teenagersshouldnotbeallowedtogooutatnight.語法焦點(diǎn)含情態(tài)動詞should的被動語態(tài)1.含情態(tài)動詞should的被動語態(tài)結(jié)構(gòu)式：

(3)一般疑問句結(jié)構(gòu)為:Should+主語+be+及物動詞的過去分詞+(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，應(yīng)該。/不，不應(yīng)該。

(4)特殊疑問句結(jié)構(gòu)為:疑問詞+should+主語+be+動詞的過去分詞+(by+賓語)

？

eg：應(yīng)該允許學(xué)生們做什么？

Whatshouldstudentsbeallowedtodo?語法焦點(diǎn)含情態(tài)動詞should的被動語態(tài)結(jié)構(gòu):肯定：情態(tài)動詞+be+動詞的過去分詞否定：情態(tài)動詞+not+be+動詞的過去分詞一般疑問句：情態(tài)動詞+主語+be+動詞的過去分詞？特殊疑問句：疑問詞+情態(tài)動詞+主語+be+動詞的過去分詞？情態(tài)動詞的被動語態(tài)WeshouldallowteenagerstowatchTVontheweekend.Studentsmayusethecomputershere.Youmustwatertheflowernow.Hecanfixthecomputer.1.Nobodycananswerthequestion.(同義句改寫）→Thequestion＿＿＿＿answeredbyanybody.2.Weshouldcleanourteethtwiceaday.(改為被動語態(tài)）→Ourteethshould＿＿＿＿＿twiceaday.3.Theyshouldbeallowedtotakepartinafter-schoolactivities.(變一般疑問句并作否定回答）→＿＿＿＿they＿＿＿＿＿＿＿takepartinafterschoolactivities?

No,they＿＿＿＿＿.一、按要求進(jìn)行句型轉(zhuǎn)換，每空一詞。can’tbe強(qiáng)化訓(xùn)練becleanedShouldbeallowedtoshouldn’t4.Youcan’tlendthemagazinetoothers.(改為被動語態(tài)）→Thebook＿＿＿＿＿＿toothers.5.Thelightsshouldbeturnedoffbeforeyouleavetheclassroom.(改為主動語態(tài)）→You＿＿＿＿＿＿offthelightsbeforeyouleavetheclassroom.一、按要求進(jìn)行句型轉(zhuǎn)換，每空一詞。can’tbelent強(qiáng)化訓(xùn)練shouldturnNomatterhowmanydifficultieswehave,Ibelieveallproblemscan_____________(solve)intheend.2.Mobilephonesshould___________(keep)offduringthemeeting.3.Teenagersundereighteenmust__________________(notallow)tosmokeordrink.4.Manyparentsthinkgoingtoschoolmust___________(put)first,soteenagersshould_____________________(notencourage)toworkpart-time.

Completethesentencesusingthecorrectformsofthewordsinbrackets.besolvedbekeptnotbeallowedbeputnotbeencouragedYoumustcleanyourbedroomeveryday.Yourbedroommustbecleanedeveryday.2.Parentsshouldencourageteenagerstodosocialworkfortheircommunity.Teenagers__________________________________________________________.3.CanLucydoherhomeworktomorrowinstead?Can__________________________________________shouldbeencouragedherhomeworkbedonetomorrowinstead?

4aRewritethesentencesaccordingtotheexample.todosocialworkfortheircommunity.4.DoyouthinkwemustkeepteenagersawayfromtheInternet?Doyouthinkteenagers_______________________________________?5.Parentsshouldgiveteenagerschancestomaketheirowndecisions.Teenagers_____________________________________________.mustbekeptawayfromshouldbegivenchancestomaketheirowndecisionstheInternet4bFillintheblankswiththecorrectformsofthewordsinbrackets.

Shouldteenagers___________(ask)tomoveoutwhentheystartworking?InmanyWesterncountries,teenagers___________(allow)tomoveoutateighteen.Theirparentsbelievethattheyshould___________(educate)totakecareofthemselvesfromayoungage.Thisway,whenthey_______(start)workingtheycanmanagetheirownlives.However,inmostAsiansocieties,itisnotcommonforteenagerstobeaskedareallowedbeeducatedstart_________(move)out.Chineseparentsbelievethatitisbetterforchildrentolive