人教版必修二课件Unit 4 Wildlife protection using language

Unit4UsinglanguageWildlifeprotection LanguagepointsTheylivedontheearthtensofmillionsofyearsago,longbeforehumanscameintobeing.千百万年前，早在人类产生之前，它们就生活在地球上。 1)ontheearth在地球上。在earth,sun,moon等表达世界上独一无二的名词前,要加the。2)comeintobeing的意思是“开始存在;发生”。我们不知道这世界是什么时候存在的。Wedon’tknowwhentheworldcameintobeing. 3)longbefore“早在……之前很久”。Itwill(not)belongbefore+从句(不久后将会......)从句用一般现在时或一般过去时,主句用一般将来时或一般过去将来时。 Ex.It___longbeforewe___theresultoftheexperiment.A.willnotbe;willknowB.is;willknowC.willnotbe;knowD.is;know拓展：beforelong不久以后C 2.Theycouldtellthisfromthewaytheboneswerejoinedtogether.他们能够从它们骨头的结合方式上识别出这点。tell意思为“辨别，识别”(常与from连用)有时很难把双胞胎区分开。Itissometimeshardtotellonetwinfromtheother. 1.Whendiddinosaurslive?Tensofmillionsofyearsago.2.Whendiddinosaursdieout?About65millionyearsago.UsinglanguageReading 3.Howdiddinosaursdieout?Alargerockhittheearthandputtoomuchdustintotheair.Theearthgottoohottoliveon. TherearemanydifferentspeciesofdinosaurandallofthemhavebeenfoundinChina.2.Notlongago,ararenewspeciesofbird-likedinosaurwasdiscoveredinHenanProvince.LiaoningseveralTrueorfalseFF Trueorfalse3.Somescientistsaresuredinosaursdiedoutbecausetheearthgottoohotforthedinosaurstoliveonanymore.4.Dinosaursdiedoutquicklyabout65millionyearsagoandmanyanimalshavediedoutinthesameway.thinkFT 1.Listentothetapeandchoosethecorrectanswertocompleteeachsentence.P3041.C2.B3.C2.Whichisthebestfordescribingwhathappened?P3032iscorrect.Listening ListeningtextOnceuponatime,IlivedontheislandofMauritius.Iwascalled“dodo”.Thereweremanyofusandwewerefriendswithalltheotheranimalsonthisisland.Onedayanewanimalcametomyisland.HisnameisMan,andatfirstweseemedtobegoodfriends.WewenteverywheretogetherandIsharedmyfoodwithhim.However,Ibegantowonderwhyseveralofmydodofriendshaddisappeared.Thenthenumberofourspeciesbegantodecreasequickly. IwassoworriedthatIaskedtheotheranimalsandtheyalltoldme,“yourfriendsarebeingkilledandeatenbyManwhileyouarehuntingforfood.”HadManeatenthem?Icouldn’tbelieveit!WhenIaskedMandirectly,heseemedsurprised.“Ihaven’tseentheotherdodoseither.”hesaid.“Maybesomeoneelsekilledthem.”IbelievehimbutwhenmoredodosdisappearedIsetatrap.IwentoffasifIwasgoingtohuntbutinsteadIhidintheforeatandwaited. SureenoughMancamealong.Heranafterthelastofmydodofriendsandkilledher.IfeltsoangrythatIrushedoutofmyhidingplaceandstraightatMan’sspear.Hekilledmetoo.Afterthattherewerenomoredodosintheworld.Somymottois:becarefulwhoyoutrust. Speaking Imagineyouarewiththedodoandyoutrytohelpit.Talkinpairsaboutwhatyoumightdo.Thesephrasesmightbeusefultoyou. Imagineyouarewiththedodoandyoutrytohelpit.Talkinpairsaboutwhatyoumightdo.Thesephrasesmightbeusefultoyou.IntentionPurposeI’mgoingtohelpthedodoIintend/mean/plantohideitinacaveIwilltrapmanashekillsadodoIfeellikeattackingmanmyselfI’dliketoputmaninacageI’mreadytoteachmanhowtobefriendsIwouldrathernottellyouwhatIthinkofman Writing Nowwritealettertothedodototellhimhowyouwillhelphim.HowtoprotectthedodofrommanbuildatraptocatchmanResult:manwillnotwanttoattackthedodoanymore.helphimbyattackingmansohewillleavethedodoalone Howtoprotectthedofromman·gotoanotherisland·hidethedodoResult:dodoswillliveacalmandpeacefullife. Howtoteachmantohuntanotheranimal·givemanamealoffriedfish·encouragehimtojoinyouonafishingexpeditionResult:manwillleavedodosalone. DearDodo,IamwritingtoyoubecauseIhaveheardofyourproblems.IknowmanistryingtokillallthedodosandIwanttohelpyou.Herearemyideas.Samplelettertothedodo: First,Iwouldliketocomeandattackthemforyousothattheywillleaveyoualone.Iwanttobuildatrapandcatchthemandputtheminacage.Thentheywillnotfeellikekillinganydodosagain. Second,IwishIcouldtakeyouawaytoanotherislandwhereyouwillbehappyandpeaceful.IwishIwerewithyounow.GoodlucktillIcome.Yourssincerely,XiaoHua