高中英语Unit5MeetingyourancestorsSection1WarmingUpandReading课件新人教版选修.ppt

,Meetingyourancestors,Unit5,牵手课堂,TheZhoukoudianBeijingManSiteisoneofthemostimportantworldheritage(遗产)sitesinChina.Sincethediscoverywasmadeinthe1920s,Zhoukoudianhasbecomeanimportantplaceforarchaeologistsfromallovertheworld.Atthesiteinthesouthwestsuburb(郊区)ofBeijing,thereis,forexample,theearliestevidenceoftheuseoffirebyhumans.Ithasalsobeenprovedthatpeoplelivedtherecontinuouslybetween500,000and10,000yearsago.,Today,however,Zhoukoudianisinseriousdanger.Partsofthecaveshavebeenbadlyaffectedbyrainandexposuretotheair.Someareasarealmostcompletelycoveredinweeds,causingseriousdamage.Pollutionfromnearbycement(水泥)factorieshasalsocontributedtotheproblem.Thesiteisextremelyexpensivetomaintain(维持)anditwillcostbetweenthreeandfivemillionyuantorepairit.Atthemoment,visitorsarenotallowedtovisitthecaves.ZhoukoudianisontheWorldCulturalHeritageList,organizedbyUNESCO,theUnitedNationsEducational,ScientificandCulturalOrganization.Thelistisconstantlychecked.Anysitewhichisseriouslydamagedorwhichisnotproperlyprotectedisanendangeredheritage,andUNESCOisveryquicktodosomethingaboutsituationslikethis.Theyhaverecommendedthatthesitebeclosedandrepaired.Ifnothingisdonetorepairit,itcouldberemovedfromthelist.,ThisisaveryseriousmatterandtheChineseAcademyofSciencesistryingtoraisepublicawarenessaboutit.Dr.ZhuMingoftheAcademysaid,“Wehaverequestedthatthegovernmentgetinvolved,butwealsoneedassistancefromordinarypeople.Theycanhelpbycontributingtothecostofrepairingthecaves.Theyareapreciouspartofourculturalheritageitisofgreatimportancethatwedosomething.Ifnot,itwillbeacatastrophe.”,SectionWarmingUpandReading,栏目导航,.Scanthetextandchoosethebestansweraccordingtothetext.1.Wheredothecaveslie?A.Intheforest.B.Ontheseaside.C.Atthefootofthehill.D.Higherupthehill.答案：D,2.Whichofthefollowingmaterialdidtheearliestpeopleinthecavesusedtomakeclothesaccordingtotheconversation?A.leavesB.woolsC.animalskinsD.cotton答案：C3.Fromtheconversationwecaninferthattheearliestpeopleinthecavesprobably_.A.weregoodatbuildingboatsB.mainlydependedonseaforalifeC.travelledtotheseaD.didntcareabouttheirappearance答案：C,4.Whichofthefollowingisthecorrectorderabouthowearlypeoplemadeclothes?a.cleanthefatandmeatfromtheskinb.cutuptheanimalsc.rubsaltinsidetheskind.removetheskine.sewthepiecestogetherA.bdcaeB.bdaceC.badceD.bacde答案：B,.Readtheconversationagain.Writedownthethreetopicsofthearchaeologistspartofthedialogue.Topic1:LifeinthecaveTopic2:WhatwecanlearnfromaneedleTopic3:Whatwecanlearnfromanecklace,.Completethefollowingpassagewiththewordsinbracketsintheirproperformsorthewordsfromthetext.AgroupofstudentsfromEnglandhascometotheZhoukoudiancaves1._avisit.2._archaeologistisshowingthemround.Thearchaeologists3._(excavate)hereformanyyears.After4._(find)humanandanimalbonesinthosecaveshigherupthehillaswellastoolsandotherobjects,theythink5._isreasonabletoassumetheylivedinthesecaves,regardlessofthecold.Theydiscoveredfireplacesinthecentreofthecaves6._theymadefires.Someevidencesuggeststhatourancestorsdidwearclothes7._(make)fromanimalskins.Thearchaeologistalsoshowsthestudentsaprimitivenecklace8._(preserve)quitewell.,for,An,havebeenexcavating,finding,it,where,made,preserved,Indeed,asthebotanicalanalyseshaveshownus,allthefieldsaroundhere9._(use)tobepartofalargeshallowlake.Perhapstherewastradebetweenearlypeoples10._theytravelledtotheseasideontheirjourneys.,used,or,Pointalternativen.C可能的选择adj.供选择的；其他的,考点一单词点击,Canyouthinkofthealternativeswewouldusetoday?（教材P37）你能想出今天我们使用的替代品吗？,analternativeto的替代品havethealternativeofdoingsth.有做的选择；可以做Thereisnoalternative别无选择havenoalternativebuttodosth.除了做某事别无选择,WecantakeaboattoFlorida,andasanalternative,wecanfly.我们可以乘船去佛罗里达，另一个选择是乘飞机。Ihadnomoney,soIhadnoalternativebuttostayathome.我身无分文，只能待在家里，别无选择。,单句语法填空。（1）Nowwehavenoalternativebut_（cancel）thiscontract.单句改错。（2）Youhavethealternativeofspeakingandkeepingsilent.,Ihavenoalternativebuttogiveuptheplan.=Ihavenochoicebuttogiveuptheplan.=Ihavenothingtodobutgiveuptheplan.除了放弃那个计划我别无选择。,tocancel,or,Pointinterruptvi.打断讲话；打岔；阻碍；中断；插嘴vt.暂时中断或中止,Imsorrytointerruptyoubuthowcouldtheylivehere?(教材P38)对不起，打断了你的讲话。不过，他们怎么能够住在这儿的?Onepersonshoulddescribehisorherside,andtheotherpersonshouldlistenwithoutinterrupting.一个人应描述他或她的状况，而另外一个人应该倾听而不能打断。,interruptwith用打断beinterruptedby被打断,Itisnotpolitetointerruptaspeakerwithfrequentquestions.不断提问打断演讲者是不礼貌的。Theywereinterruptedbyasuddenandurgentknockatthedoor.他们被突然而急促的敲门声打断了。,interruptionn.阻断物；中断，打断；打扰withoutinterruption不间断地；不受打扰地,Shehaskeptupphysicaltrainingforseveralyearswithoutinterruption.她坚持锻炼，多年从未间断。,interrupt,disturbinterrupt突然中断、打断他人的言语或行为，使其不能继续，侧重打断disturb较正式的用词，多用被动语态。指“扰乱”，使人不能平静或妨碍别人工作、思维或正常秩序，是程度较深的打扰,选词填空（interrupt,disturb）。（1）Shetriedtoexplainwhathadhappenedbuthekept_her.（2）Ifyougetupearly,trynotto_anyoneelse.单句语法填空。（3）Thecalmoftheafternoon_(interrupt)byaloudbang.,interrupting,disturb,wasinterrupted,Pointassumev.假定；设想；承担；采取；呈现,assumetobe认为是，假定是Itisassumedthat被认为,Sowethinkitisreasonabletoassumetheylivedinthesecaves,regardlessofthecold.(教材P38)所以我们有理由认为他们不顾严寒，就住在这些洞穴里。,Weassumedhimtobethebestwriterofourtime.我们认为他是我们这个时代最好的作家。Itisgenerallyassumedthatstressiscausedbytoomuchwork.普遍认为，紧张是工作过重所致。,(1)assuming(that)假定(作状语)(2)assumptionn.设想；假定；承担makeanassumption(about)(对)作出假设/推测；假定/认为ontheassumptionthat假定,Assumingthattheadviceisaccepted,whenarewegoingtogetthemoney?假定这个建议被采纳，我们什么时候能拿到钱？Peoplemakealotofassumptionsaboutherfamilybackground.人们对她的家庭背景做出种种推测。【点拨】assuming以及suppose/supposing/providing/provided后可接从句，相当于if,onconditionthat引导的条件状语从句。,单句改错。(1)Assumethatitistrue,whatshouldwedonow?(2)Weareworkingintheassumptionthattherateofinflationwillnotincreasenextyear.,Assuming,on,Pointsharpenvi.急转的,陡峭;突然的,急剧的,asharpturn急转弯asharpincrease急剧增加,单句语法填空。(1)Coffeebecamepopularwithscholarsasit_(sharpen)themindratherthandulleditlikealcohol.解析：句意：咖啡在学者中间开始流行，因为它能使思维变得敏锐，而不是像酒精那样让它迟钝。(2)Languageisnotonlyknowledge;itisaskillwhichneeds_(sharpen)byusingintherealworld.解析：句意：语言不仅仅是一种知识，它是一种需要在真实世界中打磨的技能。,sharpened,tobesharpened/sharpening,Pointregardlessof不管；不顾；不理会,考点二短语诠释,Sowethinkitisreasonabletoassumetheyliveinthesecaves,regardlessofthecold.(教材P38)因此，我们有理由认为他们不顾严寒，就住在这些洞穴里。Hestoodforfreedomofspeechforeveryoneregardlessofcolor,raceorcreed.他主张不分肤色、种族或信仰，人人都有言论自由。Thefieldsgivehighandstableyieldsregardlessofclamaticcircumstances.不管天气条件如何，这块地总是保持稳产高产。,（1）regardlessof“不管；不顾”，常接名词短语。（2）although/though“虽然，尽管”，常接从句。（3）however/nomatterhow“无论”，常接从句。（4）inspiteof/despite“虽然，尽管”，常接名词短语；有时也用于inspiteof/despitethefactthat结构。,【注意】regardlessof强调“不认为重要”，从而不加以重视或考虑，而despite和inspiteof有“尽管但是”之意，一般情况下可互换使用。,体会：不管费用多少，我们必须采取一切措施抢救这位老人。Regardlessofexpense,wemusttakeeverymeasuretosavetheoldmanslife.Inspiteof/Despitethefactthathowmuchitwillcost,wemusttakeeverymeasuretosavetheoldmanslife.Nomatterhow/Howevermuchitwillcost,wemusttakeeverymeasuretosavetheoldmanslife.Althoughitcoststoomuch,wemusttakeeverymeasuretosavetheoldmanslife.,单句改错。(1)Hecontinuedspeaking,regardlessaboutmyfeelingsonthematter.(2)Theyremainfriendsdespiteofalltheirdifferences.解析：despite+名词，尽管。,of,Pointatmost=atthemost至多；不超过,Itsatmostthreecentimetreslong.(教材P38)这东西最多三厘米长。Hellbebackinfiveminutes,tenminutesatmost.他会在五分钟后回来，最多十分钟。Perhapsyoucycletoschoolortowork,ormaybeatmostashortcyclingtripwithfriends?或许你骑自行车去上学或去上班，或者最多与朋友一起骑自行车旅行？,atleast=attheleast至少atanyprice/rate无论如何；不惜任何代价atfull/greatlength极详细地；全身平伸地atlarge逍遥法外的at(the)best最多，充其量at(the)worst在最坏的情况下,Itisbettertogettotheairportinadvanceofatleastanhour.最好提前至少一小时到达机场。Ifshereallywantedhimbackthatbadly,atleastshewouldhavecalledhim,butshedidnt.如果她真那么想让他回来，至少可以给他打个电话啊，但她根本没打。,选用以上短语的适当形式填空。(1)Thethievesarestill_,andbecauseofthelackofevidence，itisunlikelythattheywilleverbebroughttojustice.解析：句意：这群窃贼仍然逍遥法外，并且由于证据不足的缘故很可能无法定罪。(2)Ivespoken_abouttheimportanceofowningyourowntime.解析：句意：我已经详细地讲过拥有自己时间的重要性。,atlarge,atgreat/fulllength,(3)Althoughheispoor,_heishonest.解析：句意：虽然他穷，但他至少是诚实的。(4)Dontexpectmuchofhim;heis_astudent.解析：句意：不要对他期望过多；他充其量是个学生。,atleast,atbest,Pointcutup切碎；使伤心；严厉批评,Itseemsthattheyusedthesharpenedstonetoolstocutupanimalsandremovetheirskin.（教材P38）看样子他们是用磨尖的石器切割野兽并剥皮。Thispieceofmaterialmaybecutuptomakeapairoftrousers.这块布料可以裁成一条裤子。Thearticlewasseverelycutupbysomecritics.那篇文章曾受到一些评论家严厉的抨击。Icutupthecakeandgaveeachchildonepiece.我把蛋糕切开，给每个孩子各一份。,cutoff切断；剪掉cutdown砍伐；削减cutin打断cutout剪去，删去;略去cutintopieces切成碎片,Shewasmuchcutupabouthisbrothersaccident.弟弟出事了，这让她很伤心。,选用以上短语的适当形式填空。（1）Lets_thechickenandmakesomesoup.（2）Thefloodshave_oursupplies.（3）Donttryto_whileothersaretalking.（4）Thecoalindustrywas_tohalfofitsformersize.,cutup,cutoff,cutin,cutdown,考点三句型归纳,Pointmust的“推测”功能,Youmustbeawarethatitsherethatwefoundevidenceofsomeoftheearliestpeoplewholivedinthispartoftheworld.（教材P38）想必你们知道,正是在这儿我们找到了居住在世界这个部分最早人类的证据。点拨：本句中的must用于对肯定或有把握的事情或情况表示推测，意思是“必定，准是”。常用于以下四种结构中：,（1）must+do表示对现在情况的推测。Heenteredtheroomjustnow.Hemustbehere.他刚刚进屋，他一定在这里。Imsorryheisnthere.Hemusthaveleftalready.抱歉，他不在这儿。他准是走了。（2）must+havedone表示对过去情况的推测。Hemusthavestayeduplastnight,forheisalittletiredinthemorning.他昨晚一定熬夜了，因为他早晨就有点疲惫。,（3）must+bedoing表示对正在发生的动作或将要发生的动作的推测。TherewillbeanEnglishtesttomorrow.Hemustbepreparingforitnow.明天要考英语，他现在一定在准备考试。（4）musthavebeendoing表示对过去某个时候或某段时间正在发生的动作的推测。Imusthavebeensleepingwhenyoutelephonedmelastnight.当你昨晚给我打电话的时候我一定正在睡觉。,can/could,may/might的推测功能：（1）can/could通常用于疑问句和否定句中表示推测。Thatcantbeourclassteacher.HehasgonetoBeijing.那一定不是我们的班主任，他已经去北京了。（2）may/might用于肯定句和否定句中表示推测。（3）在肯定句中表示推测时must的语气比may/might强。（4）在否定句中表示推测时can/could的语气比may/might强。（5）情态动词can/could，must和may/might表示推测时，其反义疑问句不能用情态动词，必须去掉情态动词之后在句子本来意义的基础上进行反问。,Hemusthaveseenthefilm.可以理解为Hehasseenthefilm，所以反义疑问句用hasnthe？Hemusthaveseenthefilmyesterday.可以理解为Hesawthefilmyesterday，所以反义疑问句用didnthe？,单句语法填空。(1)Ihavelostoneofmygloves.I_(drop)itsomewhereinthelibrarythisafternoon.(2)Thelightisstilloninourteachersoffice;he_(mark)ourexampapersnow.,musthavedropped,mustbemarking,Pointas引导的非限制性定语从句,Yes,indeed,asthebotanicalanalyseshaveshownus,allthefieldsaroundhe