新人教选修9_Unit4_Exploring_plants[全套]ppt课件

.,Unit4Exploringplants,.,rose玫瑰,.,tulip郁金香,.,peony牡丹,.,sunflower向日葵,.,Whichflowerisyourfavorite?Why?,.,rose,redrosesindicatewarmthandlovewhiteones,purity（纯洁）andsimplicity（朴实）blueones,honestyandsincerity.,.,2.scale,n.1),磅秤；天平盘,.sealn.1),海豹,2,）封口；,封条,vt.,封闭,words,scale,conflict,restriction,fluency,appeal,postpone,evolve,attach,datebackto,giveout,weeds,distant,seal,missionary,endeavour,anchor,botanist,.,Whathappenedintheseyears?Completethesentences.1Inl5OOBC,theQueenofEgyptsentshipstogatherplants,animalsandothergoods.2Inthe1740s,aFrenchCatholicmissionarycalledFatherdIncarvillewassenttoBeijing.3In1751,someTreeofHeavenseedsarrivedinEngland.,Comprehending,.,4In1769,SirJosephBankscollectedvastquantitiesofplantsinthelandnowknownasAustralia5In1784,theTreeofHeavenwasintroducedintoNorthAmerica.6In1833,NathanielWardusedtwospecialcasesthathehadinventedtoshipBritishplantstoSydney,Australia.,.,7Between1843and1859,aBritishplantcollectorRobertFortune.madeseveraltripstoChina8Duringthesecondhalfofthenineteenthcentury,manyCatholicmissionariesweresenttoChinafromFrance.9In1897,aFrenchPlantcollectorFatherFarges.sentseedsoftheDoverTreefromChinatoFrance.10In1899,aPlantcollector,EHWilson.collectedalargequantityoftheseedsoftheDoveTreeinChina.,.,Grammar,.,1.Collecting“exotic”plants,astheyarecalled,datesbacktotheearliesttimes.(ReadingPara.1)【解析】datebackto从现在追溯到过去某时，相当于datefrom或gobackto。【考查方向】考查datebackto短语作谓语的情况。因“追溯”是从现在算起指向过去，所以该动词的时态通常用一般现在时，没有被动语态。,.,【考题预测】Hisinterestinstampcollectinghisschooldays.A.isdatedfromB.datesbacktoC.isdatedbacktoD.dates【点拨】datebackto(datefrom)无被动形式，而date作动词表示“写上日期”，与句意不符，故选B。,.,2.Braveyoungmentooktheopportunityofgoingonbotanicalexpeditions,oftenfacingmanydangersincludingdisease,near-starvation,severeenvironmentsandconflictswiththelocalpeople.(ReadingPara.2)【解析1】动词-ing短语oftenfacingmanydangersincludingdisease,near-starvation,severeenvironmentsandconflictswiththelocalpeople作谓语tooktheopportunity的伴随状语。,.,【考查方向】非谓语动词的考测。现在分词短语作伴随状语，它同句子的主语构成逻辑上的主谓关系，并且和句子谓语动作几乎是同时发生。【真题再现】Weoftenprovideourchildrenwithtoys,footballsorbasketballs,_thatallchildrenlikethesethings.（全国卷III2006）A.thinkingB.thinkC.tothinkD.thought【点拨】we和think构成逻辑上的主谓关系，而且动作thinkingthat同动作provide同时发生。故选A。,.,3.In1769,BankscollectedvastquantitiesofplantsinthelandnowknownasAustralia.(ReadingPara.4)【解析1】quantity作名词，意为“量，数量，总量”，quantity前可用huge,good,great,large，small,vast等词语修饰。【考查方向】“alargequantityof+可数名词复数”作主语，相当于“alargenumberof+可数名词复数”作主语，谓语用复数；“alargequantityof+不可数名词”作主语，相当于“alargeamountof+不可数名词”作主语，谓语一般情况下用单数，但如果“quantitiesof+不可数名词”作主语，谓语用复数。,.,【真题再现】Asaresultofdestroyingtheforests,alarge_ofdesert_coveredtheland.（2001年上海）A.numberhasB.quantityhasC.numberhaveD.quantityhave【点拨】alargenumberof后面接复数名词，所以排除A和C；alargequantity后面跟的是desert，表示“沙漠”，用于不可数名次，所以排除D。句意为：破坏森林的结果是大片沙漠覆盖了陆地。选B。,.,【解析2】句中nowknownasAustralia是过去分词短语作theland的后置定语，相当于定语从句whichisnowknownasAustralia。beknownas以著称。【考查方向】考查非谓语动词作定语。以beknown引出的短语有：beknowas作为而出名；beknownfor因而出名；beknownto为知道。,.,【真题再现】LindaworkedfortheMinnesotaManufacturingandMiningCompany,_as3M.（浙江2004）A.knowingB.knownC.beingknownD.tobeknown【点拨】过去分词短语作定语。故选B。,.,4.ABritishmancalledRobertFortunewasoneoftheearliestplantcollectorstouseWardiancases.(ReadingPara.7)【解析】句中theearliest是形容词最高级作plantcollectors的定语，动词不定式短语touseWardiancases作collectors的后置定语。【考查方向】当名词被形容词最高级或序数词(含last)等修饰时，其后接动词不定式作定语。,.,【真题再现】Thiscompanywasthefirst_portableradioaswellascassettetaperecordersintheworld.（上海2005春）A.producingB.toproduceC.havingproducedD.produced【点拨】thefirst后面省略了名词company，thefirst后接动词不定式作后置定语。句意：这家公司是世界上第一家生产小收音机和录音机的公司。选B。,.,5Althoughthemissionariescollectedlargenumbersofspecies,therewasnotenoughmaterialforparticularspeciestogrowinginWesterngardens.(ReadingPara.9)【解析】although是从属连词，意为“尽管，虽然，然而”，引导让步状语从句，起补充说明的作用。【考查方向】考查连词although与其他连词的辨析。although不与but连用，但可与副词still或yet连用。although与though同义，用法也基本相同，但在让步从句中，though的位置比较活（如“Thoughheispoor”和“Poorthoughheis”），although则通常置于从句之首。,.,【真题再现】hehaslimitedtechnicalknowledge,theoldworkerhasalotofexperience.（全国I卷2006）A.SinceB.UnlessC.AsD.Although【点拨】since和as表示原因，unless表示条件，although表示让步。根据句意，本题引导although让步状语从句，故选D。,.,1However，itwasnotuntiltheeighteenthandnineteenthcenturiesthattheexplorationofthebotanicalworldbeganonalargescale然而，直到18和19世纪人们对植物世界大规模的探索才开始。Itiswasnotuntilthat的意思是“直到才”。如：Itwasnotuntilthel880sthattherewereconsistentexperimentalfindingstosupporthistheory.直到19世纪80年代才有了一致的实验发现支持他的理论。,.,另外，含有notuntil结构的句子也还可以放在句首来表示强调，这时主句用倒装句。如：Notuntiltheearlyyearsofthel9thcenturydidmarlknowwhatheatis.直到19世纪初期人们才知道什么是热能。Notuntil1begantoworkdidIrealizebowmuchtimeIhadwasted直到开始工作时我才意识到自己浪费了多少时间。Itwas_backhomeafterhefinishedthereport.notuntilmidnightdidhegoB.untilmidnightthathedidntgoC.notuntilmidnightthathewentD.untilmidnightwhenhedidntwent,.,4-NotonlydidFortuneintroduceoverl20speciesOfplantstoWesterngardensbuthealsoshipped20，000TeaplantsfromShanghaitoIndia,whereasuccessfulteaindustrywasestablished福琼不仅把120余种植物引进入西方的园林，而且还用船将两万株茶树从上海运到印度，印度的制茶工业就成功地发展起来了。notonly放在旬首时，用来表示强调，这时句子需要倒装。,.,Notonlydidherefusethegift，healsoseverelycriticizedthesender他不仅拒绝收礼