《9A Unit6 Grammar》由会员分享，可在线阅读，更多相关《9A Unit6 Grammar（34页珍藏版）》请在金锄头文库上搜索。
1、Tolearntouse if andunlessObjectivesPlease read the following sentences and try to translate them into Chinese1. I will ask the teacher for help if I dont understand. 2. She will be happy if she joins the party.3. If you copy homework, you will start a bad habit.Weuseiftotalkabouttheresultofapossible
2、action.Wemakesentenceswithiflikethis:If-clause(simplepresenttense)Mainclause(will/may/might/+infinitive)Ifyouareafootballfan,youwillnotwanttomissthisweeksprogramme.Ifyouareananimal-lover,youmayfeelsadaboutit.Pay attention:Weputacommaaftertheif-clausewhenitisthefirstpartofasentence.If-clause(simplepr
3、esenttense)Mainclause(will/may/might/+infinitive)Ifyouenjoysolvingmysteries,youmightlikethisfilm.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)acar
4、accident,they(willcall/call/calls)110forhelpatonce.Choose the proper words.What will happen if . ?Millieisthinkingaboutherself,herfriendsandTVprogrammes.Completethesentenceswiththecorrectformsoftheverbsinbrackets.1.IfI_(go,willgo)totheReadingClubthisafternoon,I_(donothave,maynothave)anytimetowatchTV
5、.2.IfSimon_(gets,willget)homelate,he_(misses,willmiss)hisfavouritecartoon.gomay not havegetswill miss3.IfAmy_(completes,willcomplete)allherhomeworkquickly,she_(watches,willwatch)pleteswill watch4.IfDaniel_(takes,willtake)partinthegameshow,he_(wins,mightwin)aprize.takesmight win5.IfSandy_(finds,willf
6、ind)aprogrammeinteresting,she_(introduces,willintroduce)ittous.findswill introduceWork out the rule!Weoftenusethesimple_(future,present)tenseintheif-clause.Weneeda_(comma,fullstop)aftertheif-clausewhenitisthefirstpartofasentence.presentcommaAsking about animalsMilliewatchedadocumentaryaboutanimals.H
7、elpMillieanswerherfathersquestionswiththehelpofthewordsinthebox.Dad:Whatwillabeardoifitsindanger?Millie:Ifabear(1)_,it(2)_people.Dad:Whatwillapolarbeardoifitshungry?Millie:Ifapolar bear(3)_,it(4)_fishfromthewater.attack catchhuntliveprotectwalkis in dangerwill attackis hungrywill catchvt./vi.攻击，进攻攻击
8、，进攻n.北极熊北极熊Dad:Whatwillelephantsdoiftheyrethirsty?Millie:Ifelephants(5)_,they(6)_untiltheyfindariver.Dad:Whatwilltigersdoiftheyliveinthewild?Millie:Tigers(7)_fortheirownfoodifthey(8)_.attackcatchhuntliveprotectwalkare thirstywill walkwill huntlive in the wildDad:Whatwilltigersdoiftheyhavebabies?Mill
9、ie:Tigers(9)_asafamilyifthey(10)_.Dad:Whatwillmalewolvesdoiftheresdanger?Millie:Malewolves(11)_theirfamiliesifthere(12)_.attackcatchhuntliveprotectwalkwill livehave babieswill protectis dangeradj.雄性的雄性的Please read Part B on page 85Pay attention to the use of unless.Using unlessWecanuseunlesstosaytha
10、tsomethingcanonlyhappenorbetrueinaparticularsituation.e.g.Hewontcometothepartyunlessyouinvitehim.Sometimeswecanuseif.nottoreplaceunless.e.g.Thesituationwillcontinueunlesshumansstophuntingthemfortheirfurandbones.Thesituationwillcontinueifhumansdonotstophuntingthemfortheirfurandbones.e.g.Unlessitrains
11、tomorrow,wearegoingtoplayfootballinthepark.Ifitdoesnotraintomorrow,wearegoingtoplayfootballinthepark.Theunless-clausecancomefirstorafterthemainclause.e.g.Unlessyoutryyourbest,youwillnotrealizeyourdream.Youwillbelateunlessyouleaverightnow.A trip to a film and TV studioSandyhaspreparedsometipsforascho
12、oltriptoafilmandTVstudio.However,shetorethetipsbyaccident.Helpherputthetipsbacktogether.Matchthetwopartsofthesentencesandwritethecorrectlettersintheblanks.1Unlesstheweatherreportsaysitisgoingtorain,_2Wewillarriveatthestudioaround9:30a.m.,_cyouwillnothavetotakeanumbrellawithyou.dunlessthetrafficisver
13、yheavy.cd3Unlessyoualreadyknowthestudioverywell,_4Youwillbuyyourlunchattherestaurantsinthestudio,_aunlessyoutakeyourownfoodwithyou.fyouwilltravelarounditwithatourguide.fa5Unlessyouaretired,_6YouwillhaveachancetoseehowaTVprogrammeisrecorded,_bebyouwillnotneedtotaketheminibusinthestudio.eunlessyouhave
14、littleinterestinit.Work out the rule!Weusethesimple_(future,present)tenseintheunless-clause.present条件状条件状语从句从句条件状条件状语从句主要由从句主要由if或或unless引引导：if条件句条件句1)if条件句：条件句用于条件句：条件句用于陈述述语气，表示气，表示假假设的情况可能的情况可能发生，其中生，其中if是是“如果如果”的意思。的意思。e.g.Ifitrains,wewillstayathome.如果下雨我如果下雨我们就待在家里。就待在家里。Summary2)用法：用法：(1)条件状条件
15、状语从句通常由从句通常由连词if引引导，意，意为“如如果、假如果、假如”，主句不能用，主句不能用begoingto表示将表示将来，而来，而应该用用shall,will。e.g.Ifyouleavenow,youwillneverregretit.如果你如果你现在离开，你永在离开，你永远都不会后悔。都不会后悔。(2)if“如果如果”，引，引导条件状条件状语从句，主句用一般从句，主句用一般将来将来时，从句，从句则用一般用一般现在在时。e.g.Ifitrainstomorrow,Ishantclimbthehills.如果明天下雨，我就不爬山了。如果明天下雨，我就不爬山了。(3)主句是祈使句或含有情
16、态动词，从句也用主句是祈使句或含有情态动词，从句也用一一般现在时。般现在时。e.g.PleasecallmeifhecomesnextSunday.如果他下周日过来请打电话给我。如果他下周日过来请打电话给我。注意注意:宾语从句中的宾语从句中的if与条件状语从句与条件状语从句if的区的区别。宾语从句中的别。宾语从句中的if“是否是否”相当于相当于whether,引导宾语从句引导宾语从句,时态需根据语境确定。如果主时态需根据语境确定。如果主句用一般现在时句用一般现在时,从句可以根据具体情况选用从句可以根据具体情况选用时态时态,如果主句用一般过去时如果主句用一般过去时,从句必须用过去从句必须用过去时
17、时的某种形式。的某种形式。unless条件句条件句unless引导的条件句，表示强烈的否定。翻引导的条件句，表示强烈的否定。翻译为译为“除非除非”“非非不可不可”。e.g.Youwillfailunlessyouworkharder.你不努力就会失败的。你不努力就会失败的。=Youwillfailifyoudonotworkharder.注意注意:unless从句里的谓语只能是肯定从句里的谓语只能是肯定式式,因为本身因为本身unless表示否定。表示否定。单项选择。单项选择。1.Ifthere_nobuyingandsellingofanimals,there_nokillinginnatur
18、e.A.is;willbeB.willbe;willbeC.is;isD.willbe;isA2.Imwaitingformyfriend._,Illgoshoppingalone.A.IfshecomesB.IfshewontcomeC.IfshedoesntcomeC3.Wearegoingtoplaybasketball_itrains.A.ifnotB.whenC.exceptthatD.unlessD4.Eatlessfood_youwanttoputonweight.A.ifB.unlessC.untilD.assoonasB1.Memorizethenewwords,expressionsandpatterns.2.Finishoffsomeexercises.3.PrepareIntegratedskills.
