牛津版 选修六 Unit 4 Helping people around the worldgrammar课件（共67张PPT）.ppt

unit4helpingpeoplearoundtheworldgrammarandusage unrealconditions revision would could might should 动词原形 do 1 如果现在不下雨的话 我们就出去野餐了 ifit notraining we forapicnic 2 如果他来这 他就能够帮助你了 ifhe here he abletohelpyou were shouldgo came mightbe 3 如果我是你的话 我就会带走他们 ifi you i themaway were wouldtake unrealconditions would could might should havedone 1 要是当初她被邀请的话 她就会参加这次聚会了 she tothepartyifshe 2 今天早上 她要是不叫我的话 我就会睡过头了 ifshe me i thismorning wouldhavegone hadbeeninvited hadn tcalled overslept wouldhave 3 如果你上个学期用功些 你就会在考试中过关了 ifyou harderlastterm you exam hadstudied couldhavepassed unrealconditions would could might should 动词原形 do 如果你成功 一切就好了 ifyou everythingwouldbeallright ifyou everythingwouldbeallright ifyou everythingwouldbeallright succeeded shouldsucceed weretosucceed 2 明年我要是二十岁 我就会学计算机课程 ifi twentyyearsoldnextyear i thecourseofcomputerscience weretobe wouldtake 1 如果你昨天问他 你现在就知道怎么办 ifyou himyesterday you whattodonow 2 如果昨晚下雨 今天会很冷 ifit lastnight it verycoldtoday hadasked wouldknow hadrained wouldbe completethefollowingsentences 3 如果我是你 我就不会错过昨天晚上的那部电影 ifi you i thefilmlastnight were wouldn thavemissed note whenthemainclauseisaboutthepresentandtheifclauserefersbacktothepast orviceversa weusemixedconditionals ifyouwereolder i youtogothereyesterday a willallowb shouldallowc wouldhaveallowedd hadallowed ifhe totheteacherattentively he theanswertotheproblemnow a hadlistened wouldhaveknownb listened wouldknowc listened wouldhaveknownd hadlistened wouldknow 1 我很忙 否则我可帮助你 iambusynow otherwisei youthefavor 2 要不是你的劝告 我是不会做这份工作的 butforyouradvice i abletodothiswork woulddo wouldnotbe completethefollowingsentences note inimpliedconditionals weuseotherwise or andphrasesbeginningwithwith withoutandbutforinplaceofif clauses 3 要不是你 我不会认识他 withoutyou i him wouldneverknow hewasverybusyyesterday otherwisehe tothemeeting a wouldcomeb camec wouldhavecomed hadcomewithoutelectricityhumanlife quitedifferenttoday a isb willbec wouldhavebeend wouldbe iwouldhavecomeearlier buti thatyouwerewaitingforme a didn tknowb hadn tknowc wouldhaveknownd haven tknown note wecanputshould were andhadatthebeginningofanunrealconditionalsentence inthiscase ifisnotneededanymore 1 iftheywereherenow theycouldhelpus weretheyherenow theycouldhelpus 2 ifyouhadcomeearlier youwouldhavemethim hadyoucomeearlier youwouldhavemethim completethefollowingbyomittingif 3 ifitshouldrain thecropswouldbesaved shoulditrain thecropswouldbesaved 1 mycatwouldn thavebittenthetoyfish itwasmadeofrubber a ifshehasknownb ifsheknewc sheshouldhaveknowd hadsheknown d 2 formyillnessiwouldhavelenthimahelpinghand a notbeingb haditnotbeenc withoutbeingd nothavingbeen b 3 beforewedepartthedayaftertomorrow weshouldhaveawonderfuldinnerparty a hadtheyarrivedb wouldtheyarrivec weretheyarrivingd weretheytoarrive d 4 rightnow shewouldgetthereonsunday a wouldsheleaveb ifsheleavec wereshetoleavec ifshehadleft c 5 hadheworkedharder he theexams a musthavegotthroughb wouldhavegotthroughc wouldgetthoughd couldgetthrough b 6 todothework ishoulddoitsomeotherday a ifwereib iwerec wereid wasi c 在suggest 建议 recommend 推荐 advise 劝告 propose 建议 insist 坚持 consent 允诺 decide 决定 order 命令 request 要求 demand 要求 desire 期望 ask 要求 后的宾语从句中谓语动词用should 动词原形 should可省略 subjunctivemoodinnounclause 1 isuggestedthatit quickertotravelbytrain be 2 heinsistedthatwe himthenews tell should be should tell subjunctivemoodinnounclause 3 heorderedthatthestudents theclotheseveryweekbythemselves wash 4 sherecommendedthatwe givingoffense avoid should wash should avoid 5 heinsistedthatallofus thereontimebyanymeans be 6 theteachersuggestedthatwe theblackboardafterclass clean should be should clean 7 idemandthatjohn thereatonce go 8 weareallforyourproposalthatthediscussion putoff be should be should go jane suncleinsisted inthishotelanylonger a notstayingb nottostayc thathenotstayd stayingnot subjunctivemoodinnounclause thesecretarysuggestedthatthey themeninatonce a hadbroughtb shouldhavebroughtc broughtd bring thejadeemperororderedthatthemonkeyking rightaway a wouldbearrestedb mustbearrestedc bearrestedd hadtobearrested irecommendedthatthestudent hiscompositionassoonaspossible a finishingwritingb shouldfinishthewritingc finishwritingd finishedwriting 当insist表示 坚持认为 suggest表示 表明 暗示 时 其后的从句中不用虚拟语气 例如 1 isuggestthatwe ameetingnextweek 2 yourpalefacesuggeststhatyou ill should hold are attention 4 heinsistedthathe sentthere 5 heinsistedthathe honest 6 sheinsistedthathe anything hadn tstolen was should be 在itisnecessary natural strange important that 结构中的主语从句的谓语动词要用should加动词原形 should可省略 itisnecessarythatwe awalknow have should have 2 itwasnecessarythatwe everythingreadyaheadoftime make 3 itisrequiredthatnobody here smoke should smoke should make 在itisapity ashame nowonder that 结构中的主语从句的谓语动词要用should加动词原形 should可省略 1 it sapitythatyou togososoon have should have 在由forfearthat incase lest等引导的状语从句中 用 should 动词原形 表示 惟恐 的意思 hehandledtheinstrumentwithcareforfearthatit damaged be should be itisrequiredthatyou atsix a willarriveb arrivec arrivedd wouldarriveitisreallystrangethatthegirl soearly a hasbeenmarriedb hasmarriedc bemarriedd wouldmarry itisstrangethatsuchathing inyourschool a willhappenb happensc shouldhappend happeneditisimportantthati withmr williamsimmediately a speakb spokec willspeakd tospeak 1 hepretendsasifhe thethingatall butinfactheknowsitverywell 他假装好象完全不懂那事 其实他对那事非常了解 didn tknow unrealsituationsintroducedbyevenif asif asthough ifonly whatif 2 theoldmanlookedatthepicture hefeltasthoughhe backtotime20yearsago 那老人看着照片 他觉得仿佛回到20年前的时光 3 theytalkedandtalkedasifthey again 他们谈了又谈 仿佛他们不会再相见的样子 hadgone wouldnevermeet 4 heordersmeaboutasifi hiswife 他对我指东指西的 就好像我是他的妻子似的 5 hetalksaboutromeasthoughhe therehimself 他谈论起罗马来就好像他去过那里似的 were hadbeen 6 hebehavesasifhe theplace 他的所作所为好像他是这个地方的主人 owned 1 我要是听取妈妈的建议就好了 ifonlyi mother sadvice 2 我要是能讲几种外语就好了 ifonlyi severalforeignlanguages hadtaken couldspeak unrealsituationsintroducedbyevenif asif asthough ifonly whatif 3 要是母亲给我许多金钱就好了 ifonlymymother mealotofmoney 4 要是他明天不来怎么办 whatifhe tomyhelptomorrow shouldn tcome weretogive 5 要是他们成功做了这实验怎么办 whatifthey theexperimentsuccessfully 6 要是我现在不知道答案怎么办 whatifi theanswernow haddone didn tknow ifonlyi howtooperateanelectroniccomputerasyoudo a hadknownb wouldknowc shouldknowd knew unrealsituationsintroducedbyevenif asif asthough ifonly whatif hespokeinaquiet distinctvoice asthoughhisthought a wasfarawayb hadbeenfarawayc werefarawayd wentfaraway ican tstandhim healwaystalksasthoughhe everything knewb knowsc hasknownd hadknownwhatifhe thesecretyesterday knewb hadknownc knowd knows 用于wish wouldrather后面的从句 表示与事实相反的情况 或表示将来不太可能实现的愿望 其宾语从句的动词形式为 unrealsituationsafterwishandwouldrather 1 从句动作先于主句动词动作时 had 过去分词 2 从句动作与主句动作同时发生时 过去时 be为were 3 从句动作后于主句动词动作时 would could 动词原形 iwishi astallasyou 我希望和你一样高 hewishedhe that 他希望他没讲那样的话 iwishit tomorrow 我希望明天下雨就好了 were hadn tsaid wouldrain iwishi abletotellhimallaboutitlastnight a wasb werec hadbeend shouldbehowiwishi torepairthewatch ionlymadeitworse a hadtriedb hadn ttriedc havetriedd didn ttry i dratheryou rightaway a leaveb leftc willleaved toleaveit sh