2019版高考英语一轮复习Unit5Meetingyourancestors课件新人教版选修8.ppt

Book8Unit5Meetingyourancestors,语言点用法过关1.alternativeadj.可替代的n.可供选择的事物教材原句Canyouthinkofthealternativeswewouldusetoday?你能想出我们今天使用的可供选择的物品吗?语境应用单句改错Thereisnoalternativeforusbuttakeimmediateactiontostoppollution.在but后加to,一句多译为了取得更大的进步,我们不得不充分利用好业余时间。(2015重庆高考)Inordertomakegreaterprogress,we,havenochoicebuttomakefulluseofsparetime,candonothingbutmakefulluseofsparetime,havenoalternativebuttomakefulluseofsparetime,用法点拨(1)havenoalternativebuttodosth.别无选择只好做某事Theresnoalternative别无选择analternativetosth.某物的替代品analternativemethodofdoingsth.做某事的其他方法(2)alternativelyadv.可供选择地联想“别无选择只好做”的其他表达:havenochoicebuttodosth.cantdosth.butdosth.candonothingbutdosth.,2.interruptvt.暂时中断或中止教材原句Imsorrytointerruptyoubuthowcouldtheylivehere?对不起,打断了你的讲话,但他们怎么会住在这儿呢?语境应用单句填空Willyoustopinterrupting(interrupt)uswhenwearetalking?ShehaskeptuplearningEnglishforseveralyearswithoutinterruption(int-errupt).Wheninterrupted(interrupt)byaboy,thespeakerwasabitangry.,写作微练不要打断他们。他们正在谈论环保。Dontinterruptthem.Theyaretalkingaboutenvironmentalprotection.不要打扰你的弟弟,他正在学习英语。Dontdisturbyourbrother.HeislearningEnglish.用法点拨(1)interruptsb./sth.(withsth.)(因某事)打断某人/某事(2)interruptionn.打扰;插嘴;打岔;阻断物withoutinterruption连续地;不断地,助记,3.assumevt.假定;设想教材原句Sowethinkitisreasonabletoassumetheylivedinthesecaves,regardlessofthecold.所以我们有理由认为他们不顾严寒,就住在这些洞穴里。语境应用单句填空Weareworkingontheassumptionthateveryoneinvitedwillturnup.,AlotofpeoplemaketheassumptionthatpovertyonlyexistsintheThirdWorld.Assuming(assume)thattheadviceisaccepted,whenarewegoingtogetthemoney?Weareworkingontheassumption(assume)thatitwasagasexplosion.写作微练一般认为,网上投票非常方便。(2016江苏书面表达)ItsgenerallyassumedthatvotingontheInternetisveryconvenient.,用法点拨(1)assumesb./sth.tobe.假定/假设某人/某事为Itisassumedthat.人们认为(2)assumptionn.假定;假设makeanassumption认为;假定ontheassumptionthat.假定(3)assuming(that).假设/假定(引导条件状语从句),1.regardlessof不管;不顾教材原句Sowethinkitisreasonabletoassumetheylivedinthesecaves,regardlessofthecold.所以我们有理由认为他们不顾严寒,就住在这些洞穴里。语境应用完成句子Theclubwelesallnewmembersregardlessofage.俱乐部对所有新成员不分年龄一律欢迎。,Inspiteof/Despitehisoldage,hestillleadsanactivelife.尽管年事已高,他依旧过着一种忙碌的生活。句型转换Nomatterhowoldyouare,youcansignupforthematch.Youcansignupforthematchregardlessofage.Althoughtherearedifficulties,wewillarriveatthedestinationonschedule.Despitedifficulties,wewillarriveatthedestinationonschedule.写作微练尽管你反对,我也要继续实施这项计划。Despiteyourobjection,Iwillcontinuetocarryouttheplan.,用法点拨(1)regardlessof“不管,不顾”,表示某事不重要,从而不加以重视或考虑,其后可接whether,what引导的从句。(2)despite/inspiteof意为“尽管”,其后一般不接从句,但可以接thefactthat.。2.datebackto追溯到;起始于教材原句AlltheobjectsarefromthesameexcavationsiteinSanxingduiandcanbedatedbacktobetween3,000and5,000yearsago.所有的物品都来自三星堆的一个挖掘点,时间可以追溯到3,000年到5,000年前。,语境应用单句改错Myinterestinstampcollectingdatesbackmyschooldays.back后加toAccordingtotheexpert,thetemplehasahistorydatefromtheearlyTangdynasty.datedating完成句子Theyhavesetadatefortheirwedding.他们已经确定了婚礼的日期。写作微练我不想买这件外套,它的款式过时了。Idontwanttobuythiscoat.Itsstyleisoutofdate.,用法点拨(1)datebackto(=datefrom)常用于一般现在时;不用于被动语态。常用其现在分词形式作后置定语(2)setadatefor确定的日期uptodate新式的,现代的outofdate过时的,过期的,1Ifonly.要是就好了教材原句Ifonlyitcouldbejustlikelastyear!要是能像去年那样就好了!语境应用单句填空Ipaid200yuanforspeeding.IfonlyIhadrespected(respect)thetrafficrules.Itsoundslikesomethingiswrongwiththecarsengine.Ifso,wedbettertakeittothegarageimmediately.,Getupearlytomorrowmorning.Ifnot,youwillmissthefirstbus.Theoldstoreenjoysagoodreputationinthisarea.Icantagreemore.Thereareveryfew,ifany,plainsabouttheirservice.写作微练只有每个人关注我们的环境,我们的地球才不会被污染得那么严重。Onlyifeveryonecaresaboutourenvironmentcanourearthnotbepollutdsomuch.要是我不参加会议就好了。(2016课标全国)IfonlyIwouldnotattendthemeeting.,单句改错Iamgoingtovisitsomehomesfortheoldinourcity,ifpossibly,intheingsummerholiday.possiblypossible用法点拨Ifonly+句子,句子使用虚拟语气:“Ifonly+一般过去时的句子”表示对现在的虚拟,be动词用were“Ifonly+主语+would+动词原形”表示对将来的虚拟“Ifonly+过去完成时的句子”表示对过去的虚拟,点津onlyif“只要”,引导条件状语从句,位于句首时主句用部分倒装。联想ifpossible如果可能的话ifnecessary如果必要的话ifso如果是这样的话ifnot如果不ifany如果还有(某物)的话ifever如果(某事)曾发生过的话,2.onlytodo作结果状语教材原句Abruptlyshesatdown,onlytobescoopedupbyherlaughing,shoutingsister,Luna.她突然坐了下来,结果被爱吵闹的妹妹露娜一把抱了起来。语境应用单句填空Afterschoolwewenttothereadingroomtodosomereading,onlytobetold(tell)thatitwasbeingdecorated.,Watercanabsorbandgiveoffalotofheatwithoutbigchangesintem-perature,thuscreating(create)astableenvironment.一句多译他