还剩7页未读,继续阅读
文本内容:
2019-2020年高中英语Unit3tomorrowsworldGrammarandusage教案牛津译林版必修4一.【设计思想】以实际运用为主,让学生在语言交际中运用语法规则,在运用中逐步掌握语法规则二.【教学目标】
1.知识目标
(1)了解被动语态的动词基本形式和一些特殊的被动用法2学会怎样在被动语态中使用情态动词3学习经常用于被动语态的动词
2.能力目标能够准确地运用不同时态中的被动语态的动词形式三.【教学重难点】了解被动语态的一些特殊用法【课堂导入】Step1用动词的被动语态填空1Theman_________call“Goodhusband”.2Thepetdog__________treatbyveterinary.3Afrog__________catchbyabigbirdjustnow.总结被动语态的基本形式是______________________【课堂教与学】Step2帮助学生复习不同时态的被动语态1一般现在时:am/is/are+done2现在进行时:am/is/arebeing+done3现在完成时:have/has+done4一般将来时:shall/will+done5一般过去时:was/were+done6过去进行时:was/werebeing+done7过去完成时:hadbeen+done8过去将来时:wouldbe+done
1.Askstudentshowwecanchangeasentenceintothepassivevoice.Remindstudentsthatweshouldpayattentiontothefollowing:Findouttheobjectofthesentenceanduseitasthesubjectofthesentencewiththepassivevoice.1Decidethetenseofthesentenceandusetherelatedformofitspassive.2Ifnecessaryuse“by”tojointheformersubjectwhichshouldbeputintoitsobjectform.
2.Askstudentswhenweusethepassivevoice.AskthemtoreadPoint3onpage48tofindtheanswer.Andgivethemthefollowingsentencesasexamples:1不知道或没必要指出动作的执行者Manyhouseswillbebuilthere.2强调动作的承受者Thesong“TheEastisRed”waswrittenbyapoorpeasant.3动作的执行者有较长的修饰语TheplanwassupportedbythosewhowishedtohavemorechancestospeakEnglish.4出于礼貌,不愿意说出动作的执行者Youarerequestedtoattendthemeeting.
3.AskstudentstoreadPoint3and4onpage48carefullyandpletethefollowingpractice.Changethefollowingsentencesintothepassivevoice:1Allofuslikeher._______________________________________________________2Wearediscussingthequestion._______________________________________________________3Wehaveputoffthemeeting._______________________________________________________4Iwilldevelopmypicturenextweek._______________________________________________________Fillintheblankswiththerightformofthewordsgiven:1I___________giveanewbookbymyfatheronmybirthday.2English___________findveryuseful.3Thework______________finishtomorrow.4Theflowers______________waterbythemnow.5Therailway________________buildthistimelastyear.6Thenewway_______already_________build.7Thenewrailway___________buildbytheendoflastyear.8Hetoldmethesportsmeeting____________holdthenextmonth.9Rice___________growinthesouthoftheStates.
4.Askstudentstoreadthefourpiecesofinformationaboutthetopfourexhibitsonpage49andunderlinethesentencesthatcanbechangedintopassivevoice.Askstudentstopletethereport.Remindthemofthedifferenttensesofpassivevoice.Step3Modalverbsandthepassivevoice
1.Askstudentshowtoformthepassivevoicewithmodalverbs.AskthemtoreadtheexamplesentencesinPart2andshowthemthepattern:Modalverb+be+doneAskstudentstodothefollowingpracticetounderstandthepatternbetter.Changethefollowingsentencesintothepassivevoice:1Theviewercantouchtheobjectsinthefilm._______________________________________________________2Theviewermayfeelarealsenseofachievementandhappiness._______________________________________________________3RealCinemightnotimpresssomeviewers._______________________________________________________4TeacherscoulduseRealCineintheclassroomtoo._______________________________________________________5Film-makersshoulduseRealCineforallfilms._______________________________________________________6ScientistsoughttodevelopRealCinefurther._______________________________________________________7Theviewermustwearspecialgloves._______________________________________________________
2.Askstudentstoreadthefirstreportintheexercise.Thenaskthemtopletethesecondreportbyreferringtotheinformationinthefirstone.Step4VerbsoftenusedinthepassivevoiceAskstudentstoreadtheinstructionsoftheexerciseonpage51andthetimeline.Thentheyshouldpletethearticlewithsuitableverbsintheirproperforms.【课堂巩固】
1.Cotton____inthesoutheastofChina.A.isgrownB.aregrownC.growsD.grow
2.Who_____thisbook_____A.did;writtenB.was;writtenbyC.did;writtenD.was;written
3.Themonkeywasseen_____offthetree.A.jumpB.jumpsC.jumpedD.tojump
4.Cansuchathing_____happeningagainA.preventfromB.preventedfromC.bepreventedfromD.topreventfrom
5.Ican’tusemybikebecauseit_______.A.isrepairingB.isbeingrepairedC.willrepairD.wasrepairing
6.Bytheendoflastyearanothernewgymnasium_______inBeijing.A.wouldbepletedB.wasbeingpletedC.hasbeenpletedD.hadbeenpleted
7.Attheendofthemeetingitwasannouncedthatanagreement________.A.hasbeenreachedB.hadbeenreachedC.hasreachedD.hadreached
8.---Doyouhaveanyproblemsifyou______thisjob----WellI’mthinkingaboutthesalary…A.offerB.willofferC.areofferedD.willbeoffered
9.---Haveyouhandedinyourschoolworkyet---YesIhave.Iguessit______now.A.hasgradedB.isgradedC.isbeinggradedD.isgrading
10.You_______paytoomuchattentiontoyourreadingskillasitissoimportant.A.cannotB.shouldn’tC.mustn’tD.needn’t
11.ItisusuallywarminmyhometowninMarchbutit____berathercoldsometimes.A.mustB.canC.shouldD.would
12.“Doyouthinkheislazy?”“I_____sooncebutIdon’tnow.”A.mayhavethoughtB.canhavethoughtC.maythinkD.mightthink
13.______youhaveahappylife!A.CanB.MayC.CouldD.Should
14.—Theworkwilltakemeanotherweek.I’mreallybusy.—Ithinkyou_____aswellturntoanexperiencedworker.A.mayB.canC.mustD.need
15.—Mikeisoftenabsentfromclass.—Tellhimhe_____answerforitifhegoesonbehavinglikethat.A.shallB.willC.wouldD.can
16.“Ithoughtyouwouldn’tmind.”“WellasamatteroffactIdon’tbutyou_____mefirst.”A.shouldaskB.shouldhaveaskedC.mustaskD.musthaveasked
17.There_____beanydifficultyaboutpassingtheroadtestsinceyouhavepracticedalotinthedrivingschool.A.mustn’tB.shan’tC.shouldn’tD.needn’t
18.I’msurprisedthatyournovel_______havewonthefirstprize.A.wouldB.shouldC.mustD.could
19.Ifyou______waitamomentI’llgoandfindourmanager.A.canB.shouldC.willD.must
20.Withoutelectricityhumanlife___quitedifferenttoday. A.isB.willbe C.wouldhavebeenD.wouldbeStep5被动语态用法小结1)It+be+动词的过去分词+that从句常用于这一结构的动词有sayreportexpectprovesuppose等,该结构通常可转化为“be+过去分词+不定式”例如1)ItisreportedthattheyaresailinginthePacific.-----TheyarereportedtobesailinginthePacific.2ItissaidthatMr.Bellinventedthefirsttelephone.-----Mr.Bellissaidtohaveinventedthefirsttelephone.当不定式to后的动作早于不定式to前的动作发生,不定式to后的动作应用现在完成时,表示动作的完成又如Theoldbridgeissaidtohavebeenbuiltintheearly1930s.Itissaidthat…Itisreportedthat…Itishopedthat…Itiswellknownthat…Itisbelievedthat…Itmustbepointedoutthat…二)情态动词的被动语态情态动词被动语态的结构为一般式情态动词(cancouldmaymightmustshouldneed等)+be+过去分词.完成式情态动词(cancouldmaymightmustshouldneed等)+have+been+过去分词例如1)Youneedn’tmentionhisplaninyourspeech.----Hisplanneedn’tbementionedinyourspeech.2)Youmighthavepletedyourtaskaheadoftime.----Yourtaskmighthavebeenpletedaheadoftime.三被动语态的特殊情况
1.含有动词短语的主动句变为被动句时,不要漏掉其后的介词或副词例如Wemusttakegoodcareofthechildren.-------Thechildrenmustbetakengoodcareof.
2.被动语态常在不知道动作的执行者或者是要强调动作的承受者时才用助动词be有时可被系动词get替换,即“get+过去分词”,也可表示被动概念例如Youarewantedonthephone.
3.固定结构begoingtousedtohavetohadbetter等在变为被动句时,只需将其后的动词变为被动形式即可例如Thelittleboyusedtosendnewspapershere.-------Newspapersusedtobesentherebythelittleboy.
4.“宾语+补语”又叫复合宾语,变被动语态时,只将宾语变为被动句的主语,补语位置保持不动,但是已经变为主语补足语了例如;Someonecaughttheboysmokingacigaretteinthetoilet.------Theboywascaughtsmokingacigaretteinthetoilet.5在使役动词havemake以及感官动词seewatchnoticehearfeelobserve等后面用动词不定式作宾语补足语时,主动结构中不定式符号to要省略,但变为被动结构时,要加to.例如Someonesawastrangerwalkintothebuilding.-----Astrangerwasseentowalkintothebuilding.6主动语态表示被动意义的词1感官动词和系动词如looksmellfeelprovehearsoundtasteTheclothfeelsverysoftIlikeitverymuch2某些行为动词也可表示被动意义常见的有washwritesellread例如
1.Thatkindofdresswasheswell.
2.Thistypeofputersellswellamongteenagers.
3.Thenovelreadswell.Itissuitableforchildren.3wantneedrequireworth等词的后面可以用动名词的主动形式表示被动意义例如
1.Sheboughtmeabookwhichisworthreading.
2.Allthewindowsinthemeetingroomneedwashing.
4.某些作表语的形容词后用不定式的主动形式表示被动意义例如
1.Shetoldmethatthefishwasnotfittoeat.
2.Heistheonewhoishardtoplease.
7.不及物动词或其构成的一些短语动词不能用于被动语态例如appearrisehappenliearriveexistbelongtotakeplacesetsailforconsistof等都属于此类动词或短语例如
1.Themitteeconsistsofsixmembers.
2.Youshouldn’ttakewhatdoesn’tbelongtoyou.
3.Ihappenedtoseemyprofessorinthesupermarketyesterday.
8.表示状态的动词不能用于被动语态英语中有些动词表示某种状态或情况这类动词不能用于被动语态常见的有fitmeanhaveholdcostcontainbeelastfail等例如
1.TheflatcosthimaroundonemillionRMB.
2.Thisbookcontainsallthephrasesyouhavelearnt.【提升与拓展】
1.—Youdidn’twaitforMr.Blacklastnightdidyou—Nobutwe______.Hedidn’treturnhomeatall.A.couldn’thaveB.needn’thaveC.didn’tneedtoD.shouldhavewaited
2.Yououghttokeepthesethreeroomsclean.----Thesethreerooms______byyou.A.areoughtedtokeepcleanB.oughttokeptcleanC.oughttobekeptcleanD.oughttohavebeenkeptclean
3.Shehadbetterleaveanotetohim.----Anote_____tohimbyher.A.hadbetterleftB.hadbebetterleftC.hadbetterbeleftD.hadbetterbeenleft
4.Weelectedherleader.----Shebyus.A.iselectedleaderB.wasleaderelectedC.waselectedleaderD.leaderwaselected
5.Howsweetthemusic______!A.soundstobeB.issoundedC.issoundedtobeD.sounds
6.Inwarmweatherfruitandmeat______long.A.dontkeepB.cannotbekeptC.arenotkeptD.arenotkeeping
7.Hereceivedatelegram___MotherSick.A.writtenB.saidC.readingD.writing
8.Theclassroom______30feetlong.A.measuresB.ismeasuredC.hasD.haslength
9.Goodmedicine______tothemouth.A.tastesbitterB.tastesbitterlyC.istastedbitterD.istastedbitterly
10.I__________youbecauseIthoughtImustbewrong.A.darenotaskB.darenottoaskC.darenotaskingD.daretonotask
11.Itsnearlysevenoclock.Jack__________behereatanymoment.A.mustB.needC.shouldD.can
12.Liza___wellnotwanttogoonthetrip—shehatestraveling.A.willB.canC.mustD.may
13.NaturallyafterItoldherwhattodomydaughtergoanddotheopposite.A.mayB.canC.mustD.should
14.”HowaboutthedishesDear”“Thebeefdidn’ttasteverygood.It______toolong.”A.cookedB.hadbeencookedC.wascookedD.hadcooked
15.---Mom’sgiftShe_______havechosenabetteroneforme.---She_______beveryhappytoknowit.A.should;mustB.might;wouldn’tC.couldn’t;mustD.mustn’t;can’t
16.Iwasonthehighwaywhenthiscarwentpastfollowedbyapolicecar.They_______atleast150kilometersanhour.A.shouldhavebeendoingB.musthavebeendoingC.couldhavedoneD.wouldhavedone
17.Thewetweatherwillcontinuetomorrowwhenacoldfront______toarrive.A.isexpectedB.isexpectingC.expectsD.willbeexpected
18.Ihearthey’vepromotedTombuthedidn’tmention_____whenwetalkedonthephone.A.topromoteB.havingbeenpromotedC.havingpromotedD.tobepromoted
19.---Doyouthinkweshouldacceptthatoffer---Yesweshouldforwe_____suchbadluckuptillnowandtime_____out.A.havehad;isrunningB.had;isrunningC.have;hasbeenrunD.havehad;hasbeenrun
20.Wetriedmanytimesbuttheenginejust_________.A.wouldn’tstartB.wasn’tstartedC.wasn’tstartingD.wouldn’tbestarted四.【课后预习】预习课本P52-57的内容,熟悉下节课的任务内容五.【板书设计】Step6【家庭作业】
1.复习本节课的内容,熟记被动语态的基本概念及用法
2.教师根据教辅资料自行安排家庭作业(可适当安排被动语态的练习,资源包的练习可参考)。