新教材外研版高中英语选择性必修第一册-Unit-5-Revealing-nature-教学ppt课件.pptx

《新教材外研版高中英语选择性必修第一册-Unit-5-Revealing-nature-教学ppt课件.pptx》由会员分享，可在线阅读，更多相关《新教材外研版高中英语选择性必修第一册-Unit-5-Revealing-nature-教学ppt课件.pptx（108页珍藏版）》请在得力文库 - 分享文档赚钱的网站上搜索。

1、UnitUnit 5 Revealing5 Revealing naturenatureSection AStarting out&Understanding ideasSection BUsing languageSection CDeveloping ideas&Presenting ideas&Reflection单元重点小结Weliketoconsiderourselvesthesuperiorrace,andweare.Itstruethatwearegettingtoknowmoreandmore,andweactuallylivein“theinformationage”.Our

2、humanvanitymakesusbelievethatwereallyhavetoknoweverything!Surprisingly,wedonothavethisability.Thequestion“WhatishappeningintheBermudaTriangle?”istheveryproof.WhereistheBermudaTrianglelocated?ThemysterioustriangleisbelievedtobesituatedbetweenFlorida,BermudaandPuertoRico,wheretoomanyunusualeventshaveh

3、appened.OnDecemberthe5th1945,fiveU.S.militaryplanestookofffromFloridaonacleardayonlytodisappearoverBermuda.Furthermore,someotherdisappearancestookplace:in1947,anAmericanC54planesimplydisappearedat100milesfromBermuda;at80miles,aStarTigerplanedisappearedin1948.EvenColumbushadtroubleinBermuda.Someofhis

4、journalswereaboutthestrangehappeningsthere:“thewatersarechangingtheircolour”and“compassesaregoingwild”.MaybeitswhyitiscalledtheDevilsTriangleortheAtlanticCemetery.Manyhypotheseswerestatedinordertoexplainthestrangeevents.Inspiteoftheseattempts,themysteryoftheBermudaTriangleremainsunsolved.Somepeopleg

5、ettosaythatmaybealiensareinvolvedinit.OtherimaginativescientistsrelatethehappeningsinBermudatoEinsteinstheory,sayingthatthemissingshipsandplanesaretranslatedtoanotherdimensionofspaceandtimeandtakenintoanotherworld.MaybewewilljusthavetowaittogotoHeavenandasktheonewhomadeit.Theanswerwillsurelybeasatis

6、fyingone!词海拾贝词海拾贝superioradj.更好的,占优势的vanityn.虚荣心cemeteryn.公墓imaginativeadj.富有想象力的典句欣赏典句欣赏ThemysterioustriangleisbelievedtobesituatedbetweenFlorida,BermudaandPuertoRico,wheretoomanyunusualeventshavehappened.译文:人们都认为这个神秘的三角地带位于佛罗里达、百慕大和波多黎各之间,那里发生了太多不寻常的事件。分析:在该句子中bebelievedtodo表示“被认为”;where引导定语从句,修饰先

7、行词themysterioustriangle。理解诱思理解诱思1.WhatdidtheColumbusjournalstellus?答案:IttoldusthereweresomestrangehappeningsinBermudaTriangle.2.WhyistheBermudaTrianglecalledtheDevilsTriangleortheAtlanticCemetery?答案:BecausetherehavebeenmanyplanesandshipsdisappearingoverandintheBermudaTriangle.Section AStarting out&U

8、nderstanding ideas.知识体系图解 seeddistantsamplesuspectancestorgenerate响应号召是耻辱,是丢脸的事追溯到此外,还通向,导致,带到有史以来被提及的;讨论中的;相关的充满,满是开始存在被认为是.词汇拓展1.distant(n.)2.generate(n.)distancegeneration.阅读导学根据P50P51课文内容,回答下列问题。1.WhywasCharlesDarwinadisgracetohimselfandallhisfamily?A.Becausehelearnedmedicalintheschool.B.Because

9、hedecidedtovisitdistantcountries.C.Becausehewentforadventuresafterschool.D.Becauseheleftmedicalschoolwithnodegree.答案:D2.WhatsDarwinsfavouritesubject?A.Longdistancejourney.B.Livingthings.C.Medicaldegree.D.Naturalenvironment.3.WhatdidDarwindiscoverfirst?A.Allspeciesappearedatthesametime.B.Allspeciesha

10、dneverchanged.C.Somespecieswereverysimilar.D.Theevidenceforchangingenvironments.答案:D答案:A4.Manyfactorsaffecttheevolutionexcept.A.toolsB.ancestorC.environmentD.food5.HowdidthepeoplethenreacttoDarwinsdiscoveryfirst?A.Respected.B.Refused.C.Accepted.D.Believed.答案:A答案:B重点词汇重点句式随堂练习1.datebackto追溯到【课文原句】The

11、oldestdiscoveredfossilofthemodernplatypusdatesbacktoabout100,000yearsago.已发现的最古老的现代鸭嘴兽的化石可以追溯到大约10万年前。【词汇精讲】datebackto表示“起源于,追溯到”,相当于datefrom;常用一般现在时。AlltheobjectsarefromthesameexcavationsiteinSanxingduiandmaydatebacktobetween3,000and5,000yearsago.所有物品都来自同一个遗址三星堆遗址,它们能追溯到3000至5000年前。Thisbuildingwhic

12、hhasalonghistorycandatebacktotheMingDynasty.这座有着悠久历史的建筑可以追溯到明朝。重点词汇重点句式随堂练习【名师点津】datebackto和datefrom一般不用于进行时态。作后置定语时,常用动词-ing形式。重点词汇重点句式随堂练习重点词汇重点句式随堂练习重点词汇重点句式随堂练习2.profitn.利润,收益;好处,益处vi.获益vt.对有好处【课文原句】Thecaptainoftheship,theBeagle,wantedsomeonewhowould“profitbytheopportunityofvisitingdistantcountr

13、iesyetlittleknown”.“小猎犬”号的船长希望有人能“抓住访问遥远且鲜为人知的国家的机会,并从中获益”。【词汇精讲】profit在该句子中为不及物动词,表示“获益”;同时,它还为及物动词,表示“对有好处”;它还有名词的词性,表示“利润,收益;好处,益处”。Thecompanymadeahealthyprofitonthedeal.公司在这笔生意中获利颇丰。Hefailedhismathsagain,soheobviouslyhasntprofitedbyhisexperiences.他的数学又没及格,显然他没有吸取以往的教训。重点词汇重点句式随堂练习【词汇拓展】makeaprof

14、it赚取利润dosthforprofit为赢利而做某事gainmuchprofitfrom从中获得许多益处profitbysth从中吸取教益(无被动)profitfromsth得益于某事物;得到某事物的帮助thereislittleprofitindoingsth做某事利润少Theymakeaprofitoftenpenceoneverycopytheysell.他们每售出一本获利十便士。Heprofitedgreatlyfromhisyearabroad.他在国外一年获益匪浅。Thereisverylittleprofitinsellingnewspapersatpresent.现在卖报纸利

15、润很少。重点词汇重点句式随堂练习重点词汇重点句式随堂练习重点词汇重点句式随堂练习3.crowdedadj.拥挤的【课文原句】AfterDarwinhadspentsometimeinSouthAmerica,hisroomontheshipwascrowdedwithsamplesoftheplantsandanimalshehadcollected.达尔文在南美洲待了一段时间后,他在船上的房间里挤满了他收集的动植物样本。【词汇精讲】本句中crowded为形容词,表示“拥挤的”;常用于短语becrowdedwith,表示“挤满”。Inwintertheplaceiscrowdedwithski

16、ers.冬天这地方满是滑雪的人。重点词汇重点句式随堂练习【词汇拓展】crowdn.&vt.&vi.人群,大众;拥挤,挤满acrowdof一群;一伙;一堆crowdsof许多follow(gowith)thecrowd随大流;人云亦云Therearealargecrowdofpeopleinthehall.大厅里有一大群人。Thehallwascrowdedtothedoors.大厅里挤满了人,一直挤到门口了。重点词汇重点句式随堂练习重点词汇重点句式随堂练习4.adaptvt.使适应;改编【课文原句】Maybeanimalsevolvedastheyadaptedtotheirchanginge

17、nvironments?也许动物是在适应不断变化的环境时进化了?【词汇精讲】本句中的adapt为及物动词,意为“使适应”,常见搭配为adapt(oneself)to,意为“使适应于”。Unfortunately,thedoctorsdontknowhowtomakemebetter,butIamveryoutgoingandhavelearnedtoadapttomydisability.不幸的是,大夫们不知道如何治好我的病,但是我很乐观,学会了适应身体的残疾。重点词汇重点句式随堂练习【词汇拓展】adaptsthfrom根据改编某物adapt.for为而改写/改编adaptableadj.能适

18、应的;可修改的adaptationn.适应;改编;改写本Itwastheculture,ratherthanthelanguage,thatmadeithardforhimtoadapttothenewenvironmentabroad.是文化而不是语言使得他很难适应国外的新环境。AsfarasIknow,heisgoingtoadapthisnovelforTVplay.据我所知,他计划把自己的小说改编成电视剧。ItiswellknownthatthefilmRedSorghumisadaptedfromthenovelofthesametitlebyMoYan.众所周知,电影红高粱是根据莫

19、言的同名小说改编而成的。重点词汇重点句式随堂练习重点词汇重点句式随堂练习重点词汇重点句式随堂练习5.evidencen.证据;根据;论据;迹象,痕迹【课文原句】Itwasjustanidea,butenoughtoinspireDarwintolookformoreevidence.这只是一个想法,但足以激励达尔文去寻找更多的证据。【词汇精讲】evidence在该句子中为不可数名词,表示“证据”;同时,它还有“根据;论据;迹象,痕迹”之意。Thenewevidenceledtothethiefbeingcaught.新证据帮助捉住了小偷。重点词汇重点句式随堂练习【词汇拓展】give/showe

20、videnceof有的迹象givenoevidenceof没有的迹象evidentadj.明显的;明白的;清楚的beevidenttosbthat.某人清楚的是Itis(quite)evidentthat.很显然Theroomgaveevidenceofastruggle.这房间里有搏斗过的痕迹。Itisevidenttoeverybodythatshelovesmusic.她爱好音乐,这是有目共睹的事实。重点词汇重点句式随堂练习重点词汇重点句式随堂练习6.availableadj.有效的,可得的;可利用的;空闲的【课文原句】Itseemedtheirbeakshadevolvedaccord

21、ingtowhatfoodwasavailableonthatparticularisland.它们的喙似乎是根据那个岛上可得到的食物进化而来的。【词汇精讲】本句中的available为形容词,意为“可得的;可利用的”,同时它还有“有时间的,空闲的”之意。Ifyouwantmetoaccompanyyou,pleaseletmeknowandIwillbeavailableanytime.如果你想让我陪你,请让我知道,我随时都有时间。重点词汇重点句式随堂练习【词汇拓展】availablefor可用于的;对有效的;能参加的beavailableto可以用来;对有效Therewillalsobep

22、aperballotsavailableforvoterswhowanttousethem.同样有纸质选票供投票人选用。Hewilluseallthatisavailabletodeliverhismission.他将使用一切有效的信息去完成他的使命。重点词汇重点句式随堂练习重点词汇重点句式随堂练习7.suspectn.犯罪嫌疑人adj.可疑的;不可信的vt.怀疑;猜想【课文原句】Darwinsuspectedthatthefincheshadevolvedfromacommonancestor,whichhadarrivedontheislandsalongtimebefore.达尔文猜想这

23、些雀鸟是从一个共同的祖先进化而来的,这个祖先很久以前就来到了这些岛屿上。【词汇精讲】本句中的suspect为动词,作及物动词时其后直接跟宾语或宾语从句,意为“猜想”;同时,它还可以作名词,意为“嫌疑犯”。Nervoussuspectslockedupinthepolicestationmayfeelreliefbyapleasantyellowcolouronthewall.被关在警察局的紧张的犯罪嫌疑人可能会因为墙上令人愉快的黄色而感到轻松。Suspectingnothing,hewalkedrightintothetrap.他毫无觉察,径直走入陷阱。Someoftheevidencethe

24、yproducedwashighlysuspect.他们出示的证据中有些相当成问题。重点词汇重点句式随堂练习【词汇拓展】suspiciousadj.可疑的;怀疑的;多疑的besuspiciousof对起疑suspiciouslyadv.怀疑地;猜疑地Howdoyouadvertiseasocialmovementthatissuspiciousofadvertising?你要如何为一个对广告持怀疑态度的社会运动做广告呢?Iknewhim,andyounowfindthatmysuspicionwasnotgroundless.我认识他,你现在发现我的怀疑不是没有根据的了吧。Shelookeda

25、tmesuspiciously.她猜疑地望着我。重点词汇重点句式随堂练习重点词汇重点句式随堂练习重点词汇重点句式随堂练习8.regardn.注意;尊重;问候;凝视vt.注重,考虑;看待;尊敬;把看作vi.注意【课文原句】Today,OntheOriginofSpeciesisregardedasoneofthemostimportantworkseverwritten.今天,物种起源被认为是有史以来最重要的著作之一。【词汇精讲】本句中的regard为及物动词,意为“把看作”,常见搭配为beregardedas“被看作”。同时,regard还有名词词性,表示“注意;尊重;问候;凝视”之意。Hum

26、anlifeisregardedaspartofnatureand,assuch,theonlywayforustosurviveistoliveinharmonywithnature.人的生命被认为是大自然的一部分,同样,我们生存的唯一方式就是与大自然和谐相处。重点词汇重点句式随堂练习【词汇拓展】in/withregardto/asregards/regarding关于,至于regard.as把看作inthis/thatregard在这/那方面;在这/那一点上givemybestregards(tosb)请代问候(某人);请代向某人致意regardlessof不管,不顾Ihavelittle

27、informationasregardsherfitnessforthepost.至于说她是否适合这一职位,我无可奉告。Weregardhimasarealfriendofus.我们把他当作我们真正的朋友。Boysandgirlstendtobedifferentinthisregard.男孩和女孩在这方面往往有所不同。Dogivehermyregards.务必代我向她问好。重点词汇重点句式随堂练习重点词汇重点句式随堂练习Itwasayoungmanwhohadleftmedicalschoolwithoutcompletinghisdegree.是一个年轻人没有完成学位就离开了医学院。【句式

28、剖析】该句子为Itwas.who.为结构的强调句,强调主语ayoungman。ItwasthatkindoffaiththatdroveTimoninhislife.正是那样的信念激励了蒂姆一生。重点词汇重点句式随堂练习【句式拓展】强调句的基本结构:Itis/was+被强调部分+that/who+其他部分.Is/Wasit+被强调部分+that/who+其他部分?特殊疑问词+is/wasit+that+其他部分?强调“not.until”结构中由until引导的短语或从句时,结构为:Itis/wasnotuntil.that+其余部分。【温馨提示】强调句中的it不能更换,be动词与其余部分的时

29、态一致,数的形式不受强调部分单复数的影响;被强调部分可以是除谓语动词以外的任何成分,被强调部分是人可用that/who指代,其他一律用that指代;被强调部分若是原句的主语,who/that之后的谓语动词的人称和数与该主语一致。重点词汇重点句式随堂练习重点词汇重点句式随堂练习重点词汇重点句式随堂练习.单词拼写1.Moreandmoreoftheseinvaders,intheformoflarvaeors,aresurvivingincoastalareasaroundtheSouthPole.答案:seeds2.Hesadrelativeofthemayor.答案:distant3.Habi

30、tatrestorationcontinuesaswell;fishandplantingsarestillbeing(取样)tomeasurehowwellitsgone.答案:sampled4.Theshasbeenarrested,andalltheconcerningevidencehasbeentransferredtothepolice.答案:suspect重点词汇重点句式随堂练习5.Shespeaksofneverwantingtobethestereotypicalfamily“prayingforrain,”asher(祖先)did.答案:ancestors6.Mostcit

31、iesgacomplexbrewofpollutants.答案:generate重点词汇重点句式随堂练习.翻译句子1.汤姆把考试当作障碍,而他的同学则把考试当作挑战。(regard.as)答案:Tomlookeduponthetestasanobstaclewhilehisclassmatesregardeditasachallenge.2.没有可靠的数字可以用来说明卖爆米花赚了多少钱。(beavailablefor)答案:Noreliablefiguresareavailableformoneyaccumulatedfrompopcornsales.重点词汇重点句式随堂练习3.警察怀疑她与上

32、周的银行抢劫案有关系。(suspect)答案:Policesuspectedthatshehadsomeconnectionwithlastweeksrobberyofthebank.4.作者将把他的剧本改编成电视剧。(adapt)答案:Theauthorisgoingtoadapthis/herplayforTVseries.5.就在我回来的时候她离开了会议室。(强调句)答案:ItwaswhenIreturnedthatsheleftthemeetingroom.重点词汇重点句式随堂练习.概要写作根据P50P51课文内容写一篇60词左右的内容概要。参考范文:Wherewepeoplecome

33、fromisaproblemthathaspuzzledusforthousandsofyears.ItwasCharlesDarwinwhofoundtheanswertotheproblem.Hebeganhisjourneybychance.Duringthejourney,hewasfascinatedbyvariouslivingthings,andfoundsomespeciesweresosimilartoeachother.Buthisideawasrefusedinthebeginning.Later,hisstudiesweresoconvincingthatmoreand

34、morepeoplebelievedhistheory.Section BUsing language.知识体系图解 characteristicdeclineblamegoatprimitive源于的,原产于最后是的栖息地对比之下多达.释义搭配1.characteristicA.belongingtoanearlystageinthedevelopmentofhumansoranimals2.declineB.tothinkorsaythatsb/sthisresponsibleforsthbad3.blameC.tobecomesmaller,fewer,weaker,etc.4.goat

35、D.atypicalfeatureorqualitythatsth/sbhas5.primitiveE.ananimalwithhornsandacoatofhair答案:1.D2.C3.B4.E5.A.用括号内所给单词的正确形式填空1.ItwasthesecondtimethatMrBrown_(visit)TiananmenSquare.2.Bytheendoflastmonth,we(learn)3,000Englishwords.3.BythetimeIgottotheairport,myfriendsplane(take)off.4.Beforethey(arrive)herethe

36、filmhadalreadystarted.5.Hesaidhe(work)inthatfactorysince1949.hadvisitedhadlearnedhadtakenarrivedhadworked重点词汇重点语法随堂练习1.characteristicn.特征,特性【课文原句】GregorMendalchosetostudypeaplantsbecausetheircharacteristicswereeasytocontrol.乔治孟德尔选择研究豌豆植物是因为它们的特性易于控制。【词汇精讲】本句中的characteristic为可数名词,意为“特征,特性”。Someanimal

37、spossessthecharacteristicofman.有些动物具有人类的特征。重点词汇重点语法随堂练习【词汇拓展】characteristicadj.典型的;特有的;表示特性的characteristicallyadv.典型地;表示特性地charactern.性格,品质;特性;角色vt.印,刻;使具有特征Shespokewithcharacteristicenthusiasm.她说话带着特有的热情。Hedoeshavethecharacteristicallybroadchinandbignose.他的宽下巴和大鼻子确实很突出。重点词汇重点语法随堂练习重点词汇重点语法随堂练习2.bla

38、mev.责怪,指责;把归咎于【课文原句】TheextinctionofthePintaIslandtortoiseisblamedonhumans.平塔岛龟的灭绝被归咎于人类。【词汇精讲】本句中的blame为动词,意为“把归咎于”,常见搭配为betoblame“受责备”。Itisrequestedthatthereporterreferredtobetoblameforthewrongreport.要求所涉及的那位记者应对错误报道承担责任。重点词汇重点语法随堂练习【词汇拓展】blamelessadj.清白的;无可责备的;无过失的blameon把责任推给;怪到头上Neithersideisbla

39、meless.没有一方是清白的。Butnoonecanthrowanyblameonthem.但是谁也不能怪他们。重点词汇重点语法随堂练习重点词汇重点语法随堂练习3.declinev.减少【课文原句】Aftergoatsinparticularhadbeenbroughttotheisland,thePintaIslandtortoisepopulationdeclined.特别是山羊被带到岛上之后,平塔岛龟的数量下降了。【词汇精讲】本句中的decline为动词,意为“减少”,它还可表示“衰落,衰败;婉言谢绝,拒绝”。decline还可作名词,意为“减少;下降;衰落”。Asonegrowsol

40、der,hismemorydeclines.人的记忆力随着年龄的增长而衰退。重点词汇重点语法随堂练习【词汇拓展】onthedecline在衰退中,走下坡路fallintodecline衰落declinetodosth拒绝做某事Hedeclinedtoanswermyquestions.他拒绝回答我的问题。Thefactis,theireconomydidnotfallintodeclineovernight.事实是,他们的经济衰退也不是一夜之间的事。Thesenumbershavebeenonthedeclinefordecades.近几十年来,这些数字都在减少。重点词汇重点语法随堂练习重点词

41、汇重点语法随堂练习4.survivevi.&vt.幸存下来;存活【课文原句】Thistinyorganismcansurvivetemperaturesfrom150toabelowfreezing-272.这种微小的生物可以在150到零下272的温度下生存。【词汇精讲】本句中的survive为及物动词,意为“幸存;艰难度过”;作不及物动词时,意为“存活”。Thesebirdsareabletosurvivethefreezingweather.这些鸟能够战胜寒冷的天气。Theurgetosurvivedrovethemon.求生的欲望驱使他们继续努力。重点词汇重点语法随堂练习【词汇拓展】su

42、rvivesth从中幸存下来surviveonsth靠存活下来survivesb比某人活得长survivorn.幸存者;生还者survivaln.幸存Theysurvivedonleaveswhentheywerelost.他们迷路时靠吃树叶生存。Shesurvivedherhusbandby15years.她比她丈夫多活了15年。重点词汇重点语法随堂练习重点词汇重点语法随堂练习过去完成时1.过去完成时表示过去的过去,其构成是“had+过去分词”。2.用法:(1)表示在过去某一时间或动作之前已经发生或完成的动作。它表示的时间是过去的过去,常与bylastyear,bythetimeof.yes

43、terday等连用。Hehadgonetobedby10:00lastnight.昨夜十点钟之前他已上床睡觉了。重点词汇重点语法随堂练习(2)表示从过去某一时间开始一直延续到过去另一时间的动作或状态。常与for(后跟时间段)或since(后跟时间点)等连用。ThetrainhadstartedwhenIgottothestation.当我到达车站时火车已开走了。TheminuteIsawaladygettingoffthebus,Iknewitwasshe,forIhadseenherbefore.我一看到正在下公共汽车的那位女士就知道是她,因为我以前看见过她。重点词汇重点语法随堂练习3.常见

44、结构:(1)Bytheendof+名词(短语),主语+haddone.Bytheendoftheday,mostoftheinhabitantshadlefttheirhomes.在这一天结束的时候,大部分居民已离开他们的家园。(2)主句(haddone),before+过去时间状语Ihadreachedthestationbeforesixoclock.六点之前我已到达车站。(3)用在told,said,knew,heard,thought等动词后的宾语从句,表示动作发生在这些动词之前。ShesaidthatshehadneverbeentoParis.她说她从未去过巴黎。重点词汇重点语法随

45、堂练习(4)Bythetime+从句(did/was/were),主语+haddone.Bythetimewearrived,everyonehadreceivedmedicalcare.我们到达时,每个人已接受了医疗护理。(5)主语+haddone.,before从句(did/was/were)Fortunately,thepopulationhadleftthevillagebeforethevolcanoerupted.幸运的是,火山喷发前人们已离开了村庄。(6)主语+haddone.,when从句(did/was/were)Theyhadalreadyputthefireoutwhen

46、Ireturnedtothevillage.当我返回村子时,他们已将大火扑灭。(7)主语+(did/was/were),after从句(haddone)Theearthquakehappenedinthedaytimeafterpeoplehadalreadylefthomeforworkorschool.地震发生在白天,当时人们已离开家去上班或上学。重点词汇重点语法随堂练习(8)用在hardly(scarcely,barely).when.,nosooner.than.句型中HardlyhadIgothomewhentherainpoureddown.我刚到家大雨就倾盆而下。Nosooner

47、hadhelefthomethanitbegantorain.他一离开家天就下起雨来。(9)用在It/This/Thatwasthefirst/.time+that从句(haddone)中Itwasthethirdtimethathehadmadethesamemistake.这是他第三次犯同样的错误了。(10)用在Itwas/hadbeen+一段时间+since从句(haddone)中Itwastenyearssincewehadhadsuchawonderfultime.我们十年都没这么高兴了。重点词汇重点语法随堂练习(11)hope,plan,mean,expect,intend,sup

48、pose,want,think等动词有时用过去完成时表示一个本来打算做而未做,曾经设想而未实现的事。Theyhadwantedtohelpbutcouldnotgethereintime.他们本想来帮忙,但未及时赶到这儿。Ihadthoughtthathehaddiedatleasttwentyyearsago.我原以为他至少死了二十年了。(12)用于表示与过去事实相反的if虚拟条件句中Ifshehadseenyouyesterday,shewouldhavetoldyouthetruth.如果她昨天见过你,她已告诉你事实的真相。(13)用在wish后的宾语从句中,表示与过去事实相反。Iwis

49、hedthathehadntmadesuchamistake.我希望他从未犯过这样的错误。重点词汇重点语法随堂练习.单词拼写1.Hiscisverydifferentfromhiswifes.答案:characteristic2.ManywonderfulBritishspecieshavedcatastrophicallyoverthepastcentury.答案:declined3.IthinkofhergiftofforgivenesseverytimeImtemptedtobsomeoneinasecretforsomethingrecognizedaswrong.答案:blame重点

50、词汇重点语法随堂练习4.Therearemanyanimalsincludingpigs,hens,(山羊)andducksonthefarmandapubjusta10-minutestrollaway.答案:goats5.Forthosewhowanttobealittleclosertonature,thereare12campgroundswitharangeofservicesfromppittoiletstoshowerandlaundryfacilities.答案:primitive重点词汇重点语法随堂练习.翻译句子1.我们到的时候,其他客人都已经在那儿了。(bythetime)