第一、二条件句

FirstConditional&SecondConditional第一、二条件句Readthefollowingsentences.Whichsituationsarethesentencesusedtotalkabout:a)Unlikelysituationsinthefuture?b)Possiblesituationsinthefuture?1.IfIdon’tfinishmyprojectonthehistoryoftheInternetfornextMonday’slesson,thescienceteacherwillbeangry.2.Ifit’sgood,Dad,MumandIwillprobablygocamping.3.Wewon’tgoifitrains.bbb4.IfIstayhome,I’llhelpyouwithyourprojectifyoulike.5.Ifyoutellmesometitles,I’lllookfortheminthelibrary.6.IfyougototheScienceMuseumwebsite,you’llfindlotsofgoodinformation.bbbThe6sentencesarealltalkingabout:Possiblesituationsinthefuture(将来可能发生的情形）Let’sreadthesentencesagainandsummarizethesentencepattern:Ifclause:If+PresentSimple（一般现在时）mainclause:will/won’t+do(infinitivewithoutto)（不带to的不定式）Hereweintroduceanewterm:FirstConditional（第一条件句）WeusetheabovementionedsentencepatterntoexpressFirstConditional.（我们用上面提到的句型来表达第一条件句）WeuseFirstConditionaltotalkaboutpossiblesituationsinthefuture.（我们用第一条件句来表达将来的可能发生的情形）Part1FirstConditional（第一条件句）WeuseFirstConditional:1.Totalkaboutpossiblefutureeventswhichdependonotherfutureevents;（根据其他将来事件，将来有可能发生的事件）Tobebrief,possiblesituationsinthefuture.ThepatternisIfclause:If+PresentSimple（一般现在时）mainclause:will/won’t+doinfinitivewithoutto（不带to的不定式Let’spractise•1.Ifitrains,•2.IfIpasstheexamination,•3.IfIdon’tfinishmyhomework,•4.Iftheweatherisgood,Youareaskedtocompletetheconditionalsentencesbytalkingaboutyourselves.Let’sdomoreexercisesonp13E6.WritethesesentencesasFirstConditionals.Puttheverbsinbracketsinthecorrectform.（写出括号中单词的正确形式）1.What(do)ifyourcomputer(notwork)?Whatwillyoudoifyourcomputerdoesn’twork?2.(Yougo)outwithmeonSaturdaynightifyou(finish)theproject?WillyougooutwithmeonSaturdaynightifyoufinishheproject?3.Ifyou(go)tothatwebsite,you(find)someinterestingimformation.Ifyougotothatwebsite,you’llfindsomeinterestinginformation.4.(Yougo)tothatconcertifit(rain)?Willyougotothatconcertifitrains?5.She(buy)acomputerifshe(get)thatjob.She’llbuyacomputerifshegetsthatjob.6.I(give)youtheinformationifyou(telephone)metomorrow.I’llgiveyoutheinformationifyoutelephonemetomorrow.7.What(youdo)iftheweather(notbe)goodtomorrow?Whatwillyoudoiftheweatherisn’tgoodtomorrow?8.Mysister(notgo)toLondonifshe(notpass)herexam.Mysisterwon’tgotoLondonifshedoesn’tpassherexams.Otherpatternsarepossible,especiallyusingmodalverbs（情态动词）besidestheabovepattern:（除了上面的句型外，也可用其他句型特别是使用情态动词）eg.Ifyouhavetime,wecangoforawalkthisevening.注：WealsouseFirstConditional:•2.togivesomeoneadviceoranorder,andtomakeasuggestionorarequest（建议或命令某人做某事，提出建议或请求）:Examples:1.Ifyoufeelsleepy,gotobed.2.Ifshecomes,phoneme.3.Ifyouwantaninterestingdayout,visittheScienceMuseum.Thepatternis:IfclauseIf+PrensentSimplemainclauseImperative(祈使句）Part2Hereisasituation:Dan:WouldyouliketohavedinnerwithmeatMcDonald’?Julia:IfIhadtime,Iwouldgowithyou.Toanswerthequestioncorrectly,weneedtolearntheSecondConditional.WillJuliagowithDanfordinneratMcDonald’?WeusetheSecondConditional:•1.totalkaboutimagined,impossibleorunlikelyeventsinthefuture:(想象的、将来不可能发生的事）12Examples:•1)Ifthesunstoppedshining,plantswoulddisappear.theeventisunlikely,andthesentenceisaboutthefuture此事不可能发生，句子是关于将来的•2)IfIbecameaMP（国会议员）,Iwouldfightforanimalrights.WealsousetheSecondConditional:•2.totalkaboutimpossiblepresentsituations:（现在不可能存在的状态）Examples:•1)IfIlivedclosertoschool,Iwouldn’thavetogetupsoearly.thesituationisimpossibletofulfill实现now,andthesentencereferstothepresent.此状态现在不可能实现，句子指的是现在2)IfIhadmoretime,Iwouldn’teatfastfood.ThepatternoftheSecondConditionalis:IfclauseIf+PastSimplemainclausewould/could/might+infinitivewithoutto（不带to的不定式)Besides‘would’,wecanalsouse‘could’and‘might’inmainclause.Attention:•1)IfIwereyou,Iwouldnotdoit.•2)Ifitwerefinetomorrow,Iwouldgoshopping.1)UnrealConditional(真实条件句）2)IntheSecondConditional,“be”shouldbewrittenas“were”regardlessofthesubject.（be动词通常在第二条件句中用were的形式）Let’sdotheexerciseof9onP13•Usethecues线索，提示belowtowriteSecondConditionalsentences:•1.IfIsurfedtheInternet,Iwouldfindinformation.•2.IfIdidnothaveatry,youwouldlaughatme.•3.IfItookpartinthegame,Iwouldwin.•4.IfItoldthepolice,theywouldhelpyougetoutofthetrouble.•5.IwouldmakenewfriendsifIusedtheInternet.Canyouanswerthequestion?•Willthegirlgowiththeboyfordinner?Let’sdotheexerciseof8：•Whowillsaythesethings,aorb?Comparision:条件从句If从句的谓语式主句的谓语形式FirstConditionalPresentSimple1)will/won’t+do2)Imperative（祈使句）SecondConditionalPastSimplewould/could/might+doHomeworktime•1、2、3onP58