《英语九年级上册Unit7 Section A （Grammar Focus-4c）》课件

Unit7Teenagersshouldbeallowedtochoosetheirownclothes.SectionA(GrammarFocus-4c)Thefloormustbeswept.Thefacemustbewashed.Thebedmustbemade.Theteethmustbebrushed.Whatmustbedoneathomeasachild?Leadin

Studentsshouldn’tbeallowedtoruninthehallways.Studentsshouldn’tbeallowedtoeatintheclassroomStudentsshouldn’tbeallowedtofightwithothers.Studentsshouldn’tbeallowedtoarrivelateforschool.Whatshouldn’tbeallowedtodoasastudent?SchoolRules被动语态(passivevoice)一般现在时的被动语态含有情态动词的被动语态一般过去时的被动语态am/is/are+动词的过去分词was/were+动词的过去分词Review?Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?No,Idon’tagreewiththis.Teenagersaretooyoungtomaketheirowndecisions.Teenagersshouldnotbeallowedtohavepart-timejobs.Idisagree.Theycanlearnalotfromworking.Doyouthinkwemaybeallowedtotakephotosifwedon’tuseaflash?Ifyoudon’tuseaflash,thenitmaybeOK.Idon’tthinksixteen-year-oldsshouldbeallowedtodrive.Iagree.Theyaren’tseriousenough.GrammarFocus含有情态动词的被动语态：情态动词+be+动词的过区分词Findthepassivevoicefindoutthecommonfeatures.Presentation情态动词can/couldmay/mightwill/wouldshall/shouldmustoughtto1.情态动词无时态和人称的变化；2.情态动词后加动词原形Presentation含有情态动词的被动语态的句式结构1.Teenagersshouldbeallowedtobuytheirownclothes.2.Teenagersshouldbeallowedtogooutwithfriends.3.Teenagersshouldnotbeallowedtogettheirearspierced.4.Teenagersshouldnotbeallowedtohavepart-timejobs.5.Shouldwebeallowedtoeatintheclass?6.Shouldwebeallowedtoruninthehallways?先把下列句子分类，总结句型结构肯定句：

+

+

+

+其他内容否定句：

+

+

+

+

+其他内容.一般疑问句：

+

+

+

+其他内容？主语情态动词bedone主语情态动词notbedone情态动词主语bedone肯定句否定句一般疑问句Presentation易错点一否定句:主语+情态动词+not+be+动词过去分词Paperandwater

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

usedintheworld. A.willbenot B.willnotbe C.shouldbenot D.shouldnotbe表达否定时，“not”接在情态动词后。1.Shouldclassroombecleanedbystudents?2.Mustbemyroomcleanedbymyselfnow?3.Shouldbefoodwastedbypeople? 4.Canthehomeworkbefinishedtomorrow?5.Canbemoonseenatnight?一般疑问句:情态动词+主语+be+动词过去分词？疑问句中，情态动词后紧跟主语。TureorFalsemyroombefoodbemoonbe易错点二句式结构示例肯定句主语+情态动词+be+及物动词的过去分词Teenagersshouldbeallowedtogo

shopping.否定句主语+情态动词+not+be+及物动词的过去分词Thewordcan’tbeused

inthissentence.一般疑问句情态动词+主语+be+及物动词的过去分词?Musttheworkbefinished

today?特殊疑问句Who

shouldbeasked

forhelp?特殊疑问词+被动语态的一般疑问句？ConclusionHecleanshisbedroomeveryday.Hisbedroomiscleanedbyhimeveryday.动作执行者谓语动词动作承受者其他成分其他成分动作执行者动作承受者谓语动词主动语态被动语态主动语态转换为被动语态用被动语态改写下面\三个句子。1.Hecleanshisbedroomeveryday.2.Hecleanedhisbedroomyesterday.3.Heshouldcleanhisbedroominthemorning.Hisbedroomiscleanedbyhimeveryday.Hisbedroomwascleanedbyhimyesterday.Hisbedroomshouldbecleanedbyhiminthemorning.__________________________________________________________________________________________________________Exercise含有情态动词的主动句变为被动句时，有如下步骤：（1）把主动句的宾语变为被动句的主语；（2）主动句中的谓语变为“情态动词+be+及物动词的过去分词”；（3）主动句的主语在被动句中变为by的宾语；（4）其他成分不变。主动句：Weshouldplanttreesinspring.被动句：Treesshouldbeplantedinspring.含有情态动词的主动句与被动句之间的转换Rewritethesentencesaccordingtotheexamples.Youmustcleanyourbedroomeveryday.

Yourbedroom____________________________.Iwilldothehouseworkintheafternoon.

Thehouseworkwill________________________.3.Parentswillencouragetheirchildrentodosocialworkfortheircommunity.Children___________________________________________________________________.mustbecleanedeverydayshouldbeencouraged(bytheirparents)todosocialworkforbedoneintheafternoontheircommunity4a4.Doyouthinkwemustkeepteenagersaway

fromtheInternet?Doyouthinkteenagers___________________________?5.Parentsshouldgiveteenagerschancestomaketheirowndecisions.Teenagers_______________________________________.mustbekeptawayfromtheInternet

shouldbegivenchancestomaketheirowndecisionskeepsb./sth.awayfrom“使某人/某物远离······”chancen.

机会；可能性Rewritethesentencesaccordingtotheexamples.4aFillintheblankswiththecorrectformsofthewordsinbrackets.Shouldteenagers__________(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（困难的事）；应付（困难局面）4bYouandyourfriendarestartinganEnglishclub.Makealistofrulesaboutwhatshouldandshouldnotbeallowed.4cMembersshouldbeallowedtousedictionaries.Yes,buttheyshouldonlyuseEnglish-Englishdictionaries.YouandyourfriendarestartinganEnglishclub.Makealistofrulesaboutwhatshouldandshouldnotbeallowed.4cMembersshouldn’tbeallowedtospeakChinese.Iagree.Onlyinthiswaycanyouimprove

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

含有情态动词的被动语态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

一、单项选择。Exercise二、

用所给词的适当形式填空。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词含缩写。1.

Wemustdotheworkrightnow.(改为被动语态)___________________________________rightnow.2.Teenagersshouldbeallowedtogooutwiththeirfriendsonschoolnights.(改为否定句)Teenagers_____________________togooutwiththeirfriendsonschoolnights.3.Abookshouldbereadeachmonth.(改为一般疑问句)

___________________________________eachmonth?shouldn’tbeallowedShouldabookbereadTheworkmustbedoneExercise4.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.takethetestbefinishedshouldbeallowedExercise

一、按要求完成句子，每空一词1.Teachersshouldencourageteenagerstospeakouttheirownthoughts.

(改为被动语态)Teenagers

⁠speakouttheir

thoughtsbytheirteachers.should

be

encouraged

to

一二2.Parentsmuststopchildrenfromplayingcomputergamestoomuch.

(改为被动语态)Children

⁠playingcomputer

gamestoomuchbyparents.3.Shopscan’tsellwinetoteenagers.(改为被动语态)Wine

⁠toteenagersbyshops.4.Ididn’tbuyanythingformyself.(改为被动语态)

Nothing

⁠formyself.must

be

stopped

from

can’t

be

sold

was

bought

一二

二、短文填空Peterusedtobeaproblemchild.Hewasalwaysabsentfromschool

andfailedhisexaminations.Hedyed(染色)hishair，gothisears

5.

(pierce)andusedto6.

(smoke)withthosebad

boys.Heeventalkedbackloudlytohisparents.Allhisteachersthought

thathewasan7.a

dream，andtheyadvisedhisparentstotalk

tohim.pierced

smoke

wful

一二Afteralongtalkwithhisparents，heknewthathisparentscared

abouthim