牛津译林版九年级英语上册Unit6TVprogrammesPeriod3Grammar课件

Unit6TVprogrammesPeriod3Grammar课文呈现A.UsingifWeuseiftotalkabouttheresultofapossibleaction.Wemakesentenceswithiflikethis:我们用if来谈论一个可能的行动的结果。我们用if造句，如下所示：if的应用If-clause(simple

presenttense)Mainclause(will/may/might/...+infinitive)Ifyouareafootballfan,youwillnotwanttomissthisweek’sprogramme.Ifyouareananimal-lover,youmayfeelsadaboutit.Ifyouenjoysolvingmysteries,youmightlikethisfilm.Whatwillhappenif...?如果…会发生什么。。。？A1.Millieisthinkingaboutherself,herfriendsandTVprogrammes.Helpherchoosethecorrectformsoftheverbsinbracketstocompletethesentences.米莉在想着自己、她的朋友和电视节目。帮助她选择括号中动词的正确形式来完成句子。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.除非你尽力，否则你将无法实现你的梦想。Youwillbelateunlessyouleaverightnow.除非你现在就走，否则你会迟到的。AtriptoafilmandTVstudio电影和电视工作室之旅SandyhaspreparedsometipsforaschooltriptoafilmandTVstudio.桑迪为去电影和电视工作室的学校旅行准备了一些建议。However,shetorethetipsbyaccident.然而，她不小心把小费撕了。Helpherputthetipsbacktogether.Matchthetwopartsofthesentencesandwritethecorrectlettersintheblanks.帮她把小费重新组合起来。将句子的两个部分和在空白处写正确的字母。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_______考点精讲①attackvt.&vi.攻击，进攻Ifyouarenotcareful,atigerwillattackyou.你如果不小心,老虎会攻击你。考点1中考在线1：人不犯我，我不犯人。Wewillnot_________othersunlesswe___________.【点拨】本题用词语运用法。attack意为“攻击，进攻”，从句主语we和attack有被动关系，应用被动语态。attackareattacked②unlessyoutakeyourownfoodwithyou.takesth.withsb.某人随身携带某物辨析:take，bring，carry与fetchtake指从这里拿走,即把某人或某物从说话人处带到别处,

包含有away的含义。bring指从别处拿到这里来,或指拿到说话人所在的地方。carry表示“携带；运载”等,具有负重的含义,不表示固定方向。fetch“去拿来”，是去某处将某物拿回来或将某人接回来。考点2Pleasetakeamapwithyouwhenyoutravel.当你旅行的时候,请随身携带一张地图。Couldyouhelpmetotaketheboxtotheclassroom?你能帮我把这个盒子拿到教室吗？Bringmeacupoftea,please.请给我拿杯茶。Letmecarrythisbagforyou.让我替你扛这只袋子吧。She’sgonetofetchthekidsfromschool.她去学校接孩子了。中考在线2：AstrongwindwillarriveinHarbin.Itwill_________muchrainhere.A.bringB.takeC.catchD.fetch【点拨】bring带来；take带去；catch抓住；fetch去拿来。A中考在线3：—Tom,________theumbrellawithyou.Lookatthedarksky.It’sgoingtorain.—Thankyou,Dad.takeB.wearC.useD.makeA返回【点拨】考查动词辨析。句意：—汤姆，你带着把雨伞吧。看看这阴暗的天空。要下雨了。—谢谢你，爸爸。take拿，买，花费；wear穿，戴；use使用；make制作，使。takesth.withsb.“某人随身携带某物”，为固定搭配，故选A。语法讲解条件状语从句表示主句动作发生的条件,在初中阶段常由if(如果)引导,表示“假如有从句的动作发生，就会有主句的动作发生”。Pleasecallmeifheisathome.假如他在家的话,请给我打电话。if引导的条件状语从句［重点］时态如果主句是一般将来时,从句一般用一般现在时。Iwon’tgotherewithyouifitrainstomorrow.如果明天下雨的话,我就不和你一起去那儿了。考点1中考在线1：Ifyoutakethistrain,you______inShanghaiinfivehours.A.arriveB.willarriveC.arrivedD.havearrived【点拨】本题用语法判定法。考查动词时态。句意：如果你坐这班火车，你将在五小时内到达上海。分析句子结构可知，本题是含有if引导条件状语从句的复合句，时态上遵循“主将从现”的原则。故选B。B主从句的位置从句可以位于主句之前,也可以位于主句之后。不过从句在前时,主从句之间须用逗号隔开。Pleasetellmeifhecomesback.=Ifhecomesback,pleasetellme.如果他回来了,请告诉我一声。语法讲解考点2［易错点］if的两面性if引导条件状语从句时意为“如果”,如果引导宾语从句则意为“是否”。请比较:（1）Wewillgooutifitisfinetomorrow.（2）Idon’tknowifthetrainhasarrived.考点3中考在线2：—Wouldyouliketogohikingifit________finethisSaturday?—I’dloveto.Butnobodyknowsifit_______.A.is;willrain B.is;rainsC.willbe;willrain D.willbe;rainsA【点拨】本题用语法判定法。考查动词时态。第一个if意为“如果”，引导条件状语从句，从句中应用一般现在时表示将要发生的动作；第二个if意为“是否”，引导宾语从句，主句中的谓语动词用一般现在时，宾语从句中可根据需要用任何时态，此处指这个星期六的天气，用一般将来时，故选A。拓展：条件状语从句和主句还有一个共同的伙伴，有时它可以替代从句和主句，它就是“祈使句+and/or+简单句”。其中and表示句意顺承；or则表示转折，意为“否则”。拓展Ifyouworkharder,you’llpasstheexam.=Workharder,andyou’llpasstheexam.如果你再努力些，你就会通过考试。中考在线3：Keepworkinghard,andyouwillachievesuccess.(保持句意不变)_____________________keepworkinghard,youwillachievesuccess.[上海]【点拨】原句意为“继续努力，你就会成功的”，由句意可知，成功的条件是“继续努力”，将其转化为if引导的条件状语从句，人称保持一致。if放在前，后加you。故填Ifyou。Ifyouunless引导条件状语从句,相当于if引导的条件状语从句的否定形式,即unless=if...not。中文意为“如果不……；除非”。unless引导的条件状语从句含unless或if引导的条件状语从句的复合句中，主句用一般将来时，从句用一般现在时代替一般将来时。即所谓的“主将从现”。考点1中考在线4：Shesaysthatshe’llhavetoclosetherestaurant________businessimproves.A.ifB.afterC.unlessD.when【点拨】本题用句意理解法。考查连词的用法。句意：她说除非生意好转，否则她将不得不关闭这家餐馆。if如果；after在……之后；unless除非；when当……时候。由句意可知选C。C考点2“祈使句(肯定式)+or+陈述句”与“unless条件句+主句”有时可以相互转换。Putonyourraincoat,oryou’llgetwet.=Unlessyouputonyourraincoat,you’llgetwet.=Ifyoudon’tputonyourraincoat,you’llgetwet.穿上雨衣，否则你会淋湿的。中考在线5：Youneedn’ttakeanumbrellaunlessitrainstomorrow.（同义句转换）Youneedn’ttakeanumbrella__________it__________raintomorrow.【点拨】本题用句式分析法。unless意为“除非”，相当于if…not。ifdoesn’t拓展（1）unless引导出补充前言的句子，即对刚说过的话进行补充。Let’splaychess—unlessyoureallyhavesomethingurgenttodo.咱们下国际象棋吧—除非你真有急事要办。（2）unless在以下情况不能与if...not替换。①当某种条件所引起的结果是一种情绪或想法时，不能使用unless，只能用if...not。IwillbeangryifIamnotinvitedtotheparty.如果我不被邀请参加这个聚会的话，我将会生气。②if...not可以引导一个虚拟条件句，unless一般不引导虚拟条件句。Ifsheweren’tsosilly,shewouldunderstandit.如果她不那么傻，她就会明白它的。课堂练习一、用所给单词的适当形式填空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、单项选择6.Vivianwilltakeherdaughtertotheamusementpark________shegetsthetickets.ifB.untilC.althoughD.unlessA【点拨】本题用句意理解法。考查连词辨析。句意：如果维维安弄到票，她会带她的女儿去游乐园。if如果，引导条件状语从句；until直到……为止，引导时间状语从句；although尽管，引导让步状语从句；unless除非，如果不，引导条件状语从句。由句意可知选A。7.Kitty,you’llfailtheEnglishexam________youstudyhard.becauseB.whenC.ifD.unless【点拨】考查连词的用法。句意：基蒂，如果你不努力学习，你英语考试就会不及格。表示“如果不”用连词unless，故选D。D8.—Jeff,couldyoutellmeifit________tomorrow?Ifit________tomorrow,Iwillstayathome.—It’sreportedthatitwillbesunny.Let’sgocampingontheFenghuangMountain.A.rain;rainB.rains;rainC.willrain;rainsD.willrain;willrainC【点拨】本题用语法判定法。考查动词时态。句意：——杰夫，你能告诉我明天有雨吗？如果有雨，我就待在家里。—据报道天气晴朗。我们去凤凰山露营吧。第一句if引导宾语从句，由tomorrow可知，用将来时；后句if引导条件状语从句，要用一般现在时表示将来，故选C。9.—WillyougotoLisa’shouse-warmingpartynextSunday?—Well,ifI________,Iwillgoontime.A.inviteB.willinviteC.aminvitedD.willbeinvitedC【点拨】本题用语法判定法。句意：—下星期天你会去丽莎的乔迁派对吗？—唔，如果我被邀请，我会准时去的。由语境可知，主语I和动词invite之间是被动关系，表示“被邀请”，因此用被动语态；if引导的条件状语从句，遵循主将从现的原则，主句为一般将来时，从句为一般现在时，因此从句用一般现在时的被动语态。故选C。10.—I’mafraidwecan’tworkoutthemathproblem________theteacherhelpsus.—That’strue.It’stoodifficult.ifB.unlessC.becauseD.assoonasB【点拨】本题用句意理解法。if如果；是否；unless除非，如果不；because因为；assoonas一……就。由答语中“It’stoodifficult(它很难)”可知，老师帮助我们是计算出数学题的条件。由空格前“不能计算出那道数学题”可推知，空格处表达的是“如果不”。