9A Unit6 Grammarppt课件.ppt

Unit6TVprogrammes Grammar Tolearntouseifandunless PleasereadthefollowingsentencesandtrytotranslatethemintoChinese 1 IwillasktheteacherforhelpifIdon tunderstand 2 Shewillbehappyifshejoinstheparty 3 Ifyoucopyhomework youwillstartabadhabit Weuseiftotalkabouttheresultofapossibleaction Wemakesentenceswithiflikethis Payattention Weputacommaaftertheif clausewhenitisthefirstpartofasentence 1 Diana willgo go goes toEuropeifshe willpass pass passes theexams 2 Thegraduates willteach teach teaches inthepoorvillageiftheMinistryofEducation willagree agree agrees soon 3 Ifthere willbe are is acaraccident they willcall call calls 110forhelpatonce Choosetheproperwords Whatwillhappenif Millieisthinkingaboutherself herfriendsandTVprogrammes Completethesentenceswiththecorrectformsoftheverbsinbrackets IfI go willgo totheReadingClubthisafternoon I donothave maynothave anytimetowatchTV 2 IfSimon gets willget homelate he misses willmiss hisfavouritecartoon go maynothave gets willmiss 3 IfAmy completes willcomplete allherhomeworkquickly she watches willwatch thechatshow completes willwatch 4 IfDaniel takes willtake partinthegameshow he wins mightwin aprize takes mightwin 5 IfSandy finds willfind aprogrammeinteresting she introduces willintroduce ittous finds willintroduce Workouttherule Weoftenusethesimple future present tenseintheif clause Weneeda comma fullstop aftertheif clausewhenitisthefirstpartofasentence present comma AskingaboutanimalsMilliewatchedadocumentaryaboutanimals HelpMillieanswerherfather squestionswiththehelpofthewordsinthebox Dad Whatwillabeardoifit sindanger Millie Ifabear 1 it 2 people Dad Whatwillapolarbeardoifit shungry Millie Ifapolarbear 3 it 4 fishfromthewater attackcatchhuntliveprotectwalk isindanger willattack ishungry willcatch vt vi 攻击 进攻 n 北极熊 Dad Whatwillelephantsdoifthey rethirsty Millie Ifelephants 5 they 6 untiltheyfindariver Dad Whatwilltigersdoiftheyliveinthewild Millie Tigers 7 fortheirownfoodifthey 8 attackcatchhuntliveprotectwalk arethirsty willwalk willhunt liveinthewild Dad Whatwilltigersdoiftheyhavebabies Millie Tigers 9 asafamilyifthey 10 Dad Whatwillmalewolvesdoifthere sdanger Millie Malewolves 11 theirfamiliesifthere 12 attackcatchhuntliveprotectwalk willlive havebabies willprotect isdanger adj 雄性的 PleasereadPartBonpage85 Payattentiontotheuseofunless UsingunlessWecanuseunlesstosaythatsomethingcanonlyhappenorbetrueinaparticularsituation e g Hewon tcometothepartyunlessyouinvitehim Sometimeswecanuseif nottoreplaceunless e g Thesituationwillcontinueunlesshumansstophuntingthemfortheirfurandbones Thesituationwillcontinueifhumansdonotstophuntingthemfortheirfurandbones e g Unlessitrainstomorrow wearegoingtoplayfootballinthepark Ifitdoesnotraintomorrow wearegoingtoplayfootballinthepark Theunless clausecancomefirstorafterthemainclause e g Unlessyoutryyourbest youwillnotrealizeyourdream Youwillbelateunlessyouleaverightnow AtriptoafilmandTVstudioSandyhaspreparedsometipsforaschooltriptoafilmandTVstudio However shetorethetipsbyaccident Helpherputthetipsbacktogether Matchthetwopartsofthesentencesandwritethecorrectlettersintheblanks Unlesstheweatherreportsaysitisgoingtorain 2Wewillarriveatthestudioaround9 30a m cyouwillnothavetotakeanumbrellawithyou dunlessthetrafficisveryheavy c d Unlessyoualreadyknowthestudioverywell 4Youwillbuyyourlunchattherestaurantsinthestudio aunlessyoutakeyourownfoodwithyou fyouwilltravelarounditwithatourguide f a 5Unlessyouaretired YouwillhaveachancetoseehowaTVprogrammeisrecorded b e byouwillnotneedtotaketheminibusinthestudio eunlessyouhavelittleinterestinit Workouttherule Weusethesimple future present tenseintheunless clause present 条件状语从句条件状语从句主要由if或unless引导 if条件句1 if条件句 条件句用于陈述语气 表示假设的情况可能发生 其中if是 如果 的意思 e g Ifitrains wewillstayathome 如果下雨我们就待在家里 Grammar Summary 2 用法 1 条件状语从句通常由连词if引导 意为 如果 假如 主句不能用begoingto表示将来 而应该用shall will e g Ifyouleavenow youwillneverregretit 如果你现在离开 你永远都不会后悔 2 if 如果 引导条件状语从句 主句用一般将来时 从句则用一般现在时 e g Ifitrainstomorrow Ishan tclimbthehills 如果明天下雨 我就不爬山了 3 主句是祈使句或含有情态动词 从句也用一般现在时 e g PleasecallmeifhecomesnextSunday 如果他下周日过来请打电话给我 注意 宾语从句中的if与条件状语从句if的区别 宾语从句中的if 是否 相当于whether 引导宾语从句 时态需根据语境确定 如果主句用一般现在时 从句可以根据具体情况选用时态 如果主句用一般过去时 从句必须用过去时的某种形式 unless条件句unless引导的条件句 表示强烈的否定 翻译为 除非 非 不可 e g Youwillfailunlessyouworkharder 你不努力就会失败的 Youwillfailifyoudonotworkharder 注意 unless从句里的谓语只能是肯定式 因为本身unless表示否定 单项选择 1 Ifthere nobuyingandsellingofanimals there nokillinginnature A is willbeB willbe willbeC is isD willbe is A Exercises 2 I mwaitingformyfriend I llgoshoppingalone A IfshecomesB Ifshewon tcomeC Ifshedoesn tcome C 3 Wearegoingtoplaybasketball itrains