Unit7SectionAGrammarfocus-4c課件人教版九年級(jí)英語全冊(cè)

Unit7Teenagersshouldbeallowedtochoosetheirownclothes.SectionA(GrammarFocus~4c)FreetalkWhatcanyoudoatschool?Whatcan’tyoudoatschool?Doyouagreeordisagree?社區(qū)；社團(tuán)避免接近；遠(yuǎn)離機(jī)會(huì)；可能性自己做決定教育；教導(dǎo)完成（困難的事）；應(yīng)付（困難局面）社會(huì)Lookattheserules,use“Ithink…”,“Idon’tthink…”,“Iagree/disagree”and“should/shouldn’tbeallowedto”toexpressyourownideas.RulesforTeenagers1.Don’tsmoke!2.Don’tdrive!3.Getearspierced!4.Haveapart-timejob!Idon’tthinksixteen-year-oldsshouldbeallowedtodrive.Iagree.Theyaren’tseriousenough.Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?No,Idon’tagreewiththis.Teenagersaretooyoungtomaketheirowndecisions.Teenagersshouldnotbeallowedtohavepart-timejobs.Idisagree.Theycanlearnalotfromworking.Doyouthinkwemaybeallowedtotakesomephotosifwedon’tuseaflash?Ifyoudon’tuseaflash,thenitmaybeOK.ReadthefollowingsentencesandfindoutthePassiveVoice.GrammarFocus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Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?No,Idon’tagreewiththis.Teenagersaretooyoungtomaketheirowndecisions.Readandobservethecoloredwordsandsentences.Teenagersshouldnotbeallowedtohavepart-timejobs.Doyouthinkwemaybeallowedtotakephotosifwedon’tuseaflash?Idisagree.Theycanlearnalotfromworking.Ifyoudon’tuseaflash,thenitmaybeOK.Idon’tthinksixteen-year-oldsshouldbeallowedtodrive.Iagree.Theyaren’tseriousenough.usedtoexpressouropinions帶有情態(tài)動(dòng)詞的被動(dòng)語態(tài)結(jié)構(gòu)：情態(tài)動(dòng)詞+be+V-ed情態(tài)動(dòng)詞canmaymustshould可以也許必須應(yīng)該含有情態(tài)動(dòng)詞被動(dòng)語態(tài)的結(jié)構(gòu)情態(tài)動(dòng)詞+be+過去分詞Hecleanshisbedroomeveryday.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)1.

將含有情態(tài)動(dòng)詞的主動(dòng)語態(tài)變?yōu)楸粍?dòng)語態(tài)的方法：1)

將主動(dòng)語態(tài)的賓語變成被動(dòng)語態(tài)的主語；2)

將“情態(tài)動(dòng)詞

+

動(dòng)詞原形”變成“情態(tài)動(dòng)詞

+be+

及物動(dòng)詞的過去分詞”。2.

含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)的句式結(jié)構(gòu)：1)

肯定式：主語

+

情態(tài)動(dòng)詞

+be+

及物動(dòng)詞的過去分詞

+

其他

2)

否定式：主語

+

情態(tài)動(dòng)詞

+not+be+

及物動(dòng)詞的過去分詞

+

其他3)

疑問式：情態(tài)動(dòng)詞

+

主語

+be+

及物動(dòng)詞的過去分詞

+

其他？主語+情態(tài)動(dòng)詞+not+be+done+其他內(nèi)容.易錯(cuò)點(diǎn)一：表達(dá)否定時(shí)，“not”接在情態(tài)動(dòng)詞后。Paperandwater

wastedbypeople.A.willbenotB.willnotbeC.shouldbenotD.shouldnotbe2.In2050,2G

usedintheworld.A.willbenotB.willnotbeC.shouldbenotD.shouldnotbe易錯(cuò)點(diǎn)二：情態(tài)動(dòng)詞+

主語+be+done+其他內(nèi)容?疑問句中，情態(tài)動(dòng)詞后緊跟主語。判斷下列句子是否正確？正確（T）錯(cuò)誤（F）Shouldclassroombecleanedbystudents?Mustbemyroomcleanedbymyselfnow?Shouldbefoodwastedbypeople?Canthehomeworkbefinishedtomorrow?Canbemoonseenatnight?TFFTF妙指津含有情態(tài)動(dòng)詞的主動(dòng)句變被動(dòng)句時(shí)，謂語動(dòng)詞部分改為“情態(tài)動(dòng)詞+be+及物動(dòng)詞的過去分詞”。e.g.WecanwritelettersinEnglish.改為被動(dòng)語態(tài)LetterscanbewritteninEnglishbyus.—Thetrafficistoobusy.Wehavetodriveslowly.—Ithinkmorenewroads________inourcity.A．shouldbebuiltB．shouldbuilt

C．havebuilt

D．build可用語法判斷法解答本題。主語roads與動(dòng)詞build構(gòu)成被動(dòng)關(guān)系，所以應(yīng)用被動(dòng)語態(tài)。從句為含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)。故選A項(xiàng)。

典例點(diǎn)撥含有情態(tài)動(dòng)詞的被動(dòng)語態(tài)A1．DoyouthinkwemustkeepteenagersawayfromtheInternet?

你認(rèn)為我們必須讓青少年遠(yuǎn)離網(wǎng)絡(luò)嗎？keep...awayfrom意為“避免接近；使……

遠(yuǎn)離”

。e.g.Weadviseparentsnottoleavetheirchildrenathomealoneinordertokeep

themawayfromdanger.為了讓孩子們遠(yuǎn)離危險(xiǎn)，我們建議父母不要把他們獨(dú)自留在家。拓展keepawayfrom意為“不接近；遠(yuǎn)離”

。e.g.Junkfoodtastesdelicious,butitisn’thealthy.Soweshouldkeepawayfromit.垃圾食品吃起來可口，但不健康。所以我們應(yīng)該遠(yuǎn)離它。2．

Parentsshouldgiveteenagerschancestomaketheirowndecisions.父母應(yīng)該給青少年自己做決定的機(jī)會(huì)。(1)chance（asuitabletimeorsituationwhenyouhavetheopportunitytodosth.）可數(shù)名詞，意為“機(jī)會(huì)；機(jī)遇”，其后可接todosth.或of（doing）sth.。若表示“做某事對(duì)某人來說是一次機(jī)會(huì)”，其后可接forsb.todosth.。e.g.Inevermissachancetoplayfootball.我從不錯(cuò)過踢足球的機(jī)會(huì)。Wouldthisbeachanceformetoachievemylifelongdream?這會(huì)是成為我實(shí)現(xiàn)一生夢(mèng)想的機(jī)會(huì)嗎？(2)makeone’sowndecision意為“自己做決定”，相當(dāng)于makeadecisionforoneself。e.g.Ijustwanttobeabletomakemyowndecision.我只想能夠自己做決定。1.Youmustcleanyourbedroomeveryday.

Yourbedroom

mustbecleanedeveryday.2.Iwilldo

thehouseworkintheafternoon.

Thehouseworkwillbedoneintheafternoon.4a.Rewritethesentencesaccordingtotheexample.YourbedroomwillbeencouragedLucy’shomeworkbedonebyhertomorrowinsteadawayfromtheInternetmustbekeptchancestomaketheirowndecisionsshouldbegiven社區(qū)保持

keep-kept-kept給

give-gave-givenFillintheblankswiththecorrectformsofthewordsinbrackets.Shouldteenagers__________(ask)tomoveoutwhentheystartworking?InmanyWesterncountries,teenagers_____________(allow)tomoveoutateighteen.Theirparentsbelievethattheyshouldbeeducatedtotakecareofthemselvesfromayoungage.Thisway,whenthey_________(start)workingtheycanmanagetheirownlives.

beasked

areallowed

start

continue

move

takev.完成（困難的事）；應(yīng)付（困難局面）4bYouandyourfriendarestartinganEnglishclub.Makealistofrulesaboutwhatshouldandshouldnotbeallowed.A:Membersshouldbeallowedtousedictionaries.B:Yes,buttheyshouldonlyuseEnglish-Englishdictionaries.英語中表示同意和不同意的表達(dá)Sure.Certainly.Ofcourse.Allright.Iagree(withyou).Noproblem.Youareright.That’sagoodidea.Yes,Ithinkso.Ofcoursenot.Idon’tagree(withyou).Idisagree(withyou).Idon’tthink…I’mafraidnot.Noway!Exercise1.Theyoungtreesmustbeplantednow.(改成否定句)Theyoungtrees__________________now.2.Nobodycananswerthequestion.(改成同義句)Thequestion___________________byanybody.3.Weshouldcleanourclassroomeveryday.(改成被動(dòng)語態(tài))Ourclassroomshould___________everyday4.Canthekids_______afterwellbythenurse?(同上）

mustn’tbeplantedcan’tbeansweredbe

cleanedbelookedCanthenurseslookafter

thekidswell?

一.單選C

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

二.

用所給詞的