2024九年級英語上冊Unit6TVprogrammesPeriod3Grammar上課課件牛津譯林版

Unit6TVprogrammesPeriod3Grammar1課時導(dǎo)入2課文呈現(xiàn)3單元語法沙龍4課堂小結(jié)EnjoyasongA.UsingifWeuseiftotalkabouttheresultofapossibleaction.Wemakesentenceswithiflikethis:TIPWeputacommaaftertheif-clausewhenitisthefirstpartofasentence.If-clause(simple

presenttense)Mainclause(will/may/might/...+infinitive)Ifyouareafootballfan,youwillnotwanttomissthisweek’sprogramme.Ifyouareananimal-lover,youmayfeelsadaboutit.Ifyouenjoysolvingmysteries,youmightlikethisfilm.1.IfI(go,willgo)totheReadingClubthisafternoon,I(donothave,maynothave)anytimetowatchTV.2.IfSimon(gets,willget)hometoolate,he(misses,willmiss)hisfavouritecartoon.3.IfAmy(completes,willcomplete)allherhomeworkquickly,she(watches,willwatch)thechatshow.√√√√√√4.IfDaniel(takes,willtake)partinthegameshow,he(wins,mightwin)aprize.5.IfSandy(finds,willfind)aprogrammeinteresting,she(introduces,willintroduce)ittous.√√√√Dad:Whatwillabeardoifit’sindanger?Millie:Ifabear(1)___________

,it(2)_____________

people.Dad:Whatwillapolarbeardoifit’shungry?Millie:Ifapolarbear(3)____________

,it(4)__________

fishfromthewater.Dad:Whatwillelephantsdoifthey’rethirsty?attack

catch

hunt

live

protect

walkisindangerwillattackishungrywillcatchMillie:Ifelephants(5)__________

,

they(6)__________

untiltheyfindariver.Dad:Whatwilltigersdoiftheyliveinthewild?Millie:Tigers(7)__________

fortheirownfoodifthey(8)_______________.attack

catch

hunt

live

protect

walkarethirstywillwalkwillhuntliveinthewildDad:Whatwilltigersdoiftheyhavebabies?Millie:Tigers(9)__________

asafamilyifthey(10)_____________.Dad:Whatwillmalewolvesdoifthere’sdanger?Millie:Malewolves(11)_____________

theirfamiliesifthere(12)__________.attack

catch

hunt

live

protect

walkwilllivehavebabieswillprotectisdangerTIPWedonotuseacommaifthemainclausecomesfirst.B.UsingunlessWecanuseunlesstosaythatsomethingcanonlyhappenorbetrueinaparticularsituation.Thesituationwillcontinueunlesshumansstophuntingthemfortheirfurandbones.Sometimeswecanuseif...nottoreplaceunless.Thesituationwillcontinueunlesshumansstophuntingthemfortheirfurandbones.→Thesituationwillcontinueifhumansdonotstophuntingthemfortheirfurandbones.Unlessitrainstomorrow,wearegoingtoplayfootballinthepark.→Ifitdoesnotraintomorrow,wearegoingtoplayfootballinthepark.Theunless-clausecancomefirstorafterthemainclause.Unlessyoutryyourbest,youwillnotrealizeyourdream.Youwillbelateunlessyouleaverightnow.a.unlessyoutakeyourownfoodwithyou.b.youwillnotneedtotaketheminibusinthestudio.c.youwillnothavetotakeanumbrellawithyou.d.unlessthetrafficisveryheavy.e.unlessyouhavelittleinterestinit.f.youwilltravelarounditwithatourguide.1.Unlesstheweatherreportsaysitisgoingtorain,________2.Wewillarriveatthestudioaround9:30a.m._______3.Unlessyoualreadyknowthestudioverywell,_______4.Youwillbuyyourlunchattherestaurantsinthestudio____5.Unlessyouaretired,_______6.YouwillhaveachancetoseehowaTVprogrammeisrecorded_______cdbafeWorkouttherule!Weusethesimple(future,present)tenseintheunless-clause.if、unless引導(dǎo)的條件狀語從句if、unless引導(dǎo)的條件狀語從句概述條件狀語從句表示主句動作發(fā)生的條件,在初中階段常由if(如果)引導(dǎo),表示“假如有從句的動作發(fā)生,就會有主句的動作發(fā)生”。①if引導(dǎo)的條件狀語從句時態(tài)：主將從現(xiàn)、主祈從現(xiàn)、主情從現(xiàn)②位置：從句可以位于主句之前,也可以位于主句之后。不過從句在前時,主從句之間須用逗號隔開。③if還可引導(dǎo)賓語從句,意為“是否”。④if、unless引導(dǎo)的條件狀語從句unless引導(dǎo)的條件狀語從句unless引導(dǎo)條件狀語從句,相當于if引導(dǎo)的條件狀語從句的否定形式,即unless=if...not。中文意為“如果不……；除非”。⑤unless引導(dǎo)的條件狀語從句要用一般現(xiàn)在時表示將來。⑥

e.g.Pleasecallmeifheisathome.假如他在家的話,請給我打電話。考點1考題1：_______wealwayswaitforanotherday,fruitlesslyourlifewillpassaway.A.UntilB.IfC.AlthoughD.WhetherB【點撥】分析句意可知,逗號前“我們總是等待另一天”是逗號后“我們的生命將徒勞地逝去”發(fā)生的條件,故空格處用if引導(dǎo)條件狀語從句。返回溫馨提示：可返回原文[重點]時態(tài)如果主句是一般將來時,從句一般用一般現(xiàn)在時。e.g.Iwon’tgotherewithyouifitrainstomorrow.如果明天下雨的話,我就不和你一起去那兒了?？键c2考向1如果主句謂語含有must、may、can等情態(tài)動詞或主句是祈使句,從句也用一般現(xiàn)在時。e.g.Ifitisfinetomorrow,wecangoandflythekite.如果明天天氣好,我們可以去放風箏。Putyourhandupifyouneedmorepaper.若有人還要紙,請舉手?？枷?考題2：[北京]Don’tloseheart.Ifyoukeepworkinghard,you_______someday.A.willsucceed B.succeedC.succeeded D.havesucceededA返回e.g.Pleasetellmeifhecomesback.=Ifhecomesback,pleasetellme.如果他回來了,請告訴我一聲?？键c3返回請比較:(1)Wewillgooutifitisfinetomorrow.(2)Idon’tknowifthetrainhasarrived.句(1)中if引導(dǎo)的是狀語從句。這個從句表示“條件”,整個句子的意思是“如果明天天氣好,我們就出去”。句(2)中if引導(dǎo)的是賓語從句,充當謂語動詞know的賓語,整個句子的意思是“我不知道火車是否到了”。考點4考題3：[百色]Idon’tknowifit______tomorrow,butifit______,I’llstayathome.A.willrain;rains B.willrain;willrainC.rains;willrain D.rains;rains【點撥】本題用語法判定法。考查動詞時態(tài)。由句意“我不知道明天是否會下雨,但如果下雨,我會待在家里?！笨芍?第一個空格處所在句中if意為“是否”,引導(dǎo)賓語從句,主句為一般現(xiàn)在時,由tomorrow可知,從句應(yīng)用一般將來時,結(jié)構(gòu)為will+動詞原形；第二個空格所在句中if意為“如果”,引導(dǎo)條件狀語從句,主句為一般將來時,從句用一般現(xiàn)在時,故選A。A拓展：條件狀語從句和主句還有一個共同的伙伴,有時它可以替代從句和主句,它就是“祈使句+and/or+陳述句”。其中and表示句意順承；or則表示轉(zhuǎn)折,意為“否則”。e.g.Ifyouworkharder,you’llpasstheexam.=Workharder,andyou’llpasstheexam.如果你再努力些,你就會通過考試。考題4：[上海]Keepworkinghard,andyouwillachievesuccess.(保持句意不變)______________keepworkinghard,youwillachievesuccess.Ifyou返回e.g.You’llfailinFrenchunlessyouworkharder.=Ifyoudon’tworkharder,you’llfailinFrench.你要是不再加把勁兒,法語就考不及格了?？键c5返回e.g.Hecannotseeclearlyunlesshewearsglasses.他不戴眼鏡就看不清楚。注意:在含unless或if引導(dǎo)的條件狀語從句的復(fù)合句中,主句用一般將來時,從句用一般現(xiàn)在時代替一般將來時。即所謂的“主將從現(xiàn)”。考點6考題5：[盤錦]Thelittleboywon’tgotosleepunlesshismom_____himastory.A.tells B.toldC.istelling D.willtell【點撥】unless引導(dǎo)的條件狀語從句遵循“主將從現(xiàn)”的原則。故選A。A拓展：(1)“祈使句(肯定式)+or+陳述句”與“unless條件狀語從句+主句”有時可以相互轉(zhuǎn)換。e.g.Putonyourraincoat,oryou’llgetwet.=Unlessyouputonyourraincoat,you’llgetwet.=Ifyoudon’tputonyourraincoat,you’llgetwet.穿上你的雨衣,否則你會淋濕的。考題6：[啟東二模]Ifhedoesn’t