牛津譯林版九年級英語上冊Unit6TVprogrammesPeriod3Grammar課件

Unit6TVprogrammesPeriod3Grammar課文呈現(xiàn)A.UsingifWeuseiftotalkabouttheresultofapossibleaction.Wemakesentenceswithiflikethis:我們用if來談?wù)撘粋€可能的行動的結(jié)果。我們用if造句，如下所示：if的應(yīng)用If-clause(simple

presenttense)Mainclause(will/may/might/...+infinitive)Ifyouareafootballfan,youwillnotwanttomissthisweek’sprogramme.Ifyouareananimal-lover,youmayfeelsadaboutit.Ifyouenjoysolvingmysteries,youmightlikethisfilm.Whatwillhappenif...?如果…會發(fā)生什么。。。？A1.Millieisthinkingaboutherself,herfriendsandTVprogrammes.Helpherchoosethecorrectformsoftheverbsinbracketstocompletethesentences.米莉在想著自己、她的朋友和電視節(jié)目。幫助她選擇括號中動詞的正確形式來完成句子。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.AskingaboutanimalsA2.Milliewatchedadocumentaryaboutanimals.HelpMillieanswerherfather’squestionswiththehelpofthewordsinthebox.attackcatchhuntliveprotectwalkDad:Whatwillabeardoifit’sindanger?Millie:Ifabear（1）__________,it（2）__________people.Dad:Whatwillapolarbeardoifit’shungry?isindangerwillattackMillie:Ifapolarbear（3）__________,it（4）__________fishfromthewater.Dad:Whatwillelephantsdoifthey’rethirsty?ishungrywillcatchMillie:Ifelephants（5）__________,they（6）__________untiltheyfindariver.Dad:Whatwilltigersdoiftheyliveinthewild?Millie:Tigers（7）__________fortheirownfoodifthey（8）_______________.arethirstywillwalkwillhuntliveinthewildDad:Whatwilltigersdoiftheyhavebabies?Millie:Tigers（9）__________asafamilyifthey（10）_____________.Dad:Whatwillmalewolvesdoifthere’sdanger?Millie:Malewolves（11）__________theirfamiliesifthere（12）__________.willlivehavebabieswillprotectisdangerB.UsingunlessWecanuseunlesstosaythatsomethingcanonlyhappenorbetrueinaparticularsituation.Thesituationwillcontinueunlesshumansstophuntingthemfortheirfurandbones.Sometimeswecanuseif...nottoreplaceunless.Thesituationwillcontinueunlesshumansstophuntingthemfortheirfurandbones.→Thesituationwillcontinueifhumansdonotstophuntingthemfortheirfurandbones.Unlessitrainstomorrow,wearegoingtoplayfootballinthepark.→Ifitdoesnotraintomorrow,wearegoingtoplayfootballinthepark.除非子句可以在主子句之前或之后。Unlessyoutryyourbest,youwillnotrealizeyourdream.除非你盡力，否則你將無法實現(xiàn)你的夢想。Youwillbelateunlessyouleaverightnow.除非你現(xiàn)在就走，否則你會遲到的。AtriptoafilmandTVstudio電影和電視工作室之旅SandyhaspreparedsometipsforaschooltriptoafilmandTVstudio.桑迪為去電影和電視工作室的學(xué)校旅行準備了一些建議。However,shetorethetipsbyaccident.然而，她不小心把小費撕了。Helpherputthetipsbacktogether.Matchthetwopartsofthesentencesandwritethecorrectlettersintheblanks.幫她把小費重新組合起來。將句子的兩個部分和在空白處寫正確的字母。a.unlessyoutakeyourownfoodwithyou.b.youwillnotneedtotaketheminibusinthestudio.c.youwillnothavetotakeanumbrellawithyou.d.unlessthetrafficisveryheavy.e.unlessyouhavelittleinterestinit.f.youwilltravelarounditwithatourguide.cdbafe1.Unlesstheweatherreportsaysitisgoingtorain,________2.Wewillarriveatthestudioaround9:30a.m._______3.Unlessyoualreadyknowthestudioverywell,_______4.Youwillbuyyourlunchattherestaurantsinthestudio____5.Unlessyouaretired,_______6.YouwillhaveachancetoseehowaTVprogrammeisrecorded_______考點精講①attackvt.&vi.攻擊，進攻Ifyouarenotcareful,atigerwillattackyou.你如果不小心,老虎會攻擊你?？键c1中考在線1：人不犯我，我不犯人。Wewillnot_________othersunlesswe___________.【點撥】本題用詞語運用法。attack意為“攻擊，進攻”，從句主語we和attack有被動關(guān)系，應(yīng)用被動語態(tài)。attackareattacked②unlessyoutakeyourownfoodwithyou.takesth.withsb.某人隨身攜帶某物辨析:take，bring，carry與fetchtake指從這里拿走,即把某人或某物從說話人處帶到別處,

包含有away的含義。bring指從別處拿到這里來,或指拿到說話人所在的地方。carry表示“攜帶；運載”等,具有負重的含義,不表示固定方向。fetch“去拿來”，是去某處將某物拿回來或?qū)⒛橙私踊貋??？键c2Pleasetakeamapwithyouwhenyoutravel.當你旅行的時候,請隨身攜帶一張地圖。Couldyouhelpmetotaketheboxtotheclassroom?你能幫我把這個盒子拿到教室嗎？Bringmeacupoftea,please.請給我拿杯茶。Letmecarrythisbagforyou.讓我替你扛這只袋子吧。She’sgonetofetchthekidsfromschool.她去學(xué)校接孩子了。中考在線2：AstrongwindwillarriveinHarbin.Itwill_________muchrainhere.A.bringB.takeC.catchD.fetch【點撥】bring帶來；take帶去；catch抓?。籪etch去拿來。A中考在線3：—Tom,________theumbrellawithyou.Lookatthedarksky.It’sgoingtorain.—Thankyou,Dad.takeB.wearC.useD.makeA返回【點撥】考查動詞辨析。句意：—湯姆，你帶著把雨傘吧?？纯催@陰暗的天空。要下雨了?！x謝你，爸爸。take拿，買，花費；wear穿，戴；use使用；make制作，使。takesth.withsb.“某人隨身攜帶某物”，為固定搭配，故選A。語法講解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”。Pleasecallmeifheisathome.假如他在家的話,請給我打電話。if引導(dǎo)的條件狀語從句［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。Iwon’tgotherewithyouifitrainstomorrow.如果明天下雨的話,我就不和你一起去那兒了?？键c1中考在線1：Ifyoutakethistrain,you______inShanghaiinfivehours.A.arriveB.willarriveC.arrivedD.havearrived【點撥】本題用語法判定法?？疾閯釉~時態(tài)。句意：如果你坐這班火車，你將在五小時內(nèi)到達上海。分析句子結(jié)構(gòu)可知，本題是含有if引導(dǎo)條件狀語從句的復(fù)合句，時態(tài)上遵循“主將從現(xiàn)”的原則。故選B。B主從句的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。Pleasetellmeifhecomesback.=Ifhecomesback,pleasetellme.如果他回來了,請告訴我一聲。語法講解考點2［易錯點］if的兩面性if引導(dǎo)條件狀語從句時意為“如果”,如果引導(dǎo)賓語從句則意為“是否”。請比較:（1）Wewillgooutifitisfinetomorrow.（2）Idon’tknowifthetrainhasarrived.考點3中考在線2：—Wouldyouliketogohikingifit________finethisSaturday?—I’dloveto.Butnobodyknowsifit_______.A.is;willrain B.is;rainsC.willbe;willrain D.willbe;rainsA【點撥】本題用語法判定法?？疾閯釉~時態(tài)。第一個if意為“如果”，引導(dǎo)條件狀語從句，從句中應(yīng)用一般現(xiàn)在時表示將要發(fā)生的動作；第二個if意為“是否”，引導(dǎo)賓語從句，主句中的謂語動詞用一般現(xiàn)在時，賓語從句中可根據(jù)需要用任何時態(tài)，此處指這個星期六的天氣，用一般將來時，故選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+簡單句”。其中and表示句意順承；or則表示轉(zhuǎn)折，意為“否則”。拓展Ifyouworkharder,you’llpasstheexam.=Workharder,andyou’llpasstheexam.如果你再努力些，你就會通過考試。中考在線3：Keepworkinghard,andyouwillachievesuccess.(保持句意不變)_____________________keepworkinghard,youwillachievesuccess.[上海]【點撥】原句意為“繼續(xù)努力，你就會成功的”，由句意可知，成功的條件是“繼續(xù)努力”，將其轉(zhuǎn)化為if引導(dǎo)的條件狀語從句，人稱保持一致。if放在前，后加you。故填I(lǐng)fyou。Ifyouunless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”。unless引導(dǎo)的條件狀語從句含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)”?？键c1中考在線4：Shesaysthatshe’llhavetoclosetherestaurant________businessimproves.A.ifB.afterC.unlessD.when【點撥】本題用句意理解法。考查連詞的用法。句意：她說除非生意好轉(zhuǎn)，否則她將不得不關(guān)閉這家餐館。if如果；after在……之后；unless除非；when當……時候。由句意可知選C。C考點2“祈使句(肯定式)+or+陳述句”與“unless條件句+主句”有時可以相互轉(zhuǎn)換。Putonyourraincoat,oryou’llgetwet.=Unlessyouputonyourraincoat,you’llgetwet.=Ifyoudon’tputonyourraincoat,you’llgetwet.穿上雨衣，否則你會淋濕的。中考在線5：Youneedn’ttakeanumbrellaunlessitrainstomorrow.（同義句轉(zhuǎn)換）Youneedn’ttakeanumbrella__________it__________raintomorrow.【點撥】本題用句式分析法。unless意為“除非”，相當于if…not。ifdoesn’t拓展（1）unless引導(dǎo)出補充前言的句子，即對剛說過的話進行補充。Let’splaychess—unlessyoureallyhavesomethingurgenttodo.咱們下國際象棋吧—除非你真有急事要辦。（2）unless在以下情況不能與if...not替換。①當某種條件所引起的結(jié)果是一種情緒或想法時，不能使用unless，只能用if...not。IwillbeangryifIamnotinvitedtotheparty.如果我不被邀請參加這個聚會的話，我將會生氣。②if...not可以引導(dǎo)一個虛擬條件句，unless一般不引導(dǎo)虛擬條件句。Ifsheweren’tsosilly,shewouldunderstandit.如果她不那么傻，她就會明白它的。課堂練習(xí)一、用所給單詞的適當形式填空1.Workoutwhatyouneed___________(do)first,andgoforittoday.2.Wedon’thaveanotherchance___________________(take)aholidaythisyear.3.Asastudent,Ihavelittletime___________(watch)newsprogrammesonTV.todototake/oftakingtowatch4.Nobodycanbesuccessfulunlesshe__________(love)hiswork.5.IfIhaveagoodday,I___________(be)proudofmyself.loveswillbe二、單項選擇6.Vivianwilltakeherdaughtertotheamusementpark________shegetsthetickets.ifB.untilC.althoughD.unlessA【點撥】本題用句意理解法?？疾檫B詞辨析。句意：如果維維安弄到票，她會帶她的女兒去游樂園。if如果，引導(dǎo)條件狀語從句；until直到……為止，引導(dǎo)時間狀語從句；although盡管，引導(dǎo)讓步狀語從句；unless除非，如果不，引導(dǎo)條件狀語從句。由句意可知選A。7.Kitty,you’llfailtheEnglishexam________youstudyhard.becauseB.whenC.ifD.unless【點撥】考查連詞的用法。句意：基蒂，如果你不努力學(xué)習(xí)，你英語考試就會不及格。表示“如果不”用連詞unless，故選D。D8.—Jeff,couldyoutellmeifit________tomorrow?Ifit________tomorrow,Iwillstayathome.—It’sreportedthatitwillbesunny.Let’sgocampingontheFenghuangMountain.A.rain;rainB.rains;rainC.willrain;rainsD.willrain;willrainC【點撥】本題用語法判定法?？疾閯釉~時態(tài)。句意：——杰夫，你能告訴我明天有雨嗎？如果有雨，我就待在家里。—據(jù)報道天氣晴朗。我們?nèi)P凰山露營吧。第一句if引導(dǎo)賓語從句，由tomorrow可知，用將來時；后句if引導(dǎo)條件狀語從句，要用一般現(xiàn)在時表示將來，故選C。9.—WillyougotoLisa’shouse-warmingpartynextSunday?—Well,ifI________,Iwillgoontime.A.inviteB.willinviteC.aminvitedD.willbeinvitedC【點撥】本題用語法判定法。句意：—下星期天你會去麗莎的喬遷派對嗎？—唔，如果我被邀請，我會準時去的。由語境可知，主語I和動詞invite之間是被動關(guān)系，表示“被邀請”，因此用被動語態(tài)；if引導(dǎo)的條件狀語從句，遵循主將從現(xiàn)的原則，主句為一般將來時，從句為一般現(xiàn)在時，因此從句用一般現(xiàn)在時的被動語態(tài)。故選C。10.—I’mafraidwecan’tworkoutthemathproblem________theteacherhelpsus.—That’strue.It’stoodifficult.ifB.unlessC.becauseD.assoonasB【點撥】本題用句意理解法。if如果；是否；unless除非，如果不；because因為；assoonas一……就。由答語中“It’stoodifficult(它很難)”可知，老師幫助我們是計算出數(shù)學(xué)題的條件。由空格前“不能計算出那道數(shù)學(xué)題”可推知，空格處表達的是“如果不”。