【人教版】必修二：Unit4-Wildlife-protection-using-language課件

Unit4UsinglanguageWildlifeprotectionLanguagepointsTheylived

ontheearth

tensofmillionsofyearsago,

longbefore

humans

cameintobeing.

千百萬年前，早在人類產(chǎn)生之前，它們就生活在地球上。1)ontheearth在地球上。在earth,sun,moon等表達(dá)世界上獨(dú)一無二的名詞前,要加the。2)comeintobeing的意思是“開始存在;發(fā)生”。

我們不知道這世界是什么時(shí)候存在的。

Wedon’tknowwhentheworldcameintobeing.3)longbefore“早在……之前很久”。

Itwill(not)belongbefore+從句(不久后將會(huì)......)

從句用一般現(xiàn)在時(shí)或一般過去時(shí),主句用一般將來時(shí)或一般過去將來時(shí)。Ex.It___longbeforewe___theresultoftheexperiment.A.willnotbe;willknowB.is;willknowC.willnotbe;knowD.is;know拓展：beforelong不久以后C2.Theycouldtell

thisfromthewaytheboneswerejoinedtogether.他們能夠從它們骨頭的結(jié)合方式上識(shí)別出這點(diǎn)。

tell意思為“辨別，識(shí)別”(常與from連用)

有時(shí)很難把雙胞胎區(qū)分開。

Itissometimeshardtotellonetwinfromtheother.1.Whendiddinosaurslive?Tensofmillionsofyearsago.

2.Whendiddinosaursdieout?About65millionyearsago.UsinglanguageReading

3.Howdiddinosaursdieout?Alargerockhittheearthandputtoomuchdustintotheair.Theearthgottoohottoliveon.TherearemanydifferentspeciesofdinosaurandallofthemhavebeenfoundinChina.2.Notlongago,ararenewspeciesofbird-likedinosaurwasdiscoveredinHenanProvince.LiaoningseveralTrueorfalse

FFTrueorfalse

3.Somescientistsaresuredinosaursdiedoutbecausetheearthgottoohotforthedinosaurstoliveonanymore.4.Dinosaursdiedoutquicklyabout65millionyearsagoandmanyanimalshavediedoutinthesameway.

thinkFT1.Listentothetapeandchoosethecorrectanswertocompleteeachsentence.P3041.C2.B3.C2.Whichisthebestfordescribingwhathappened?P303

2iscorrect.ListeningListeningtext

Onceuponatime,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.SpeakingImagineyouarewiththedodoandyoutrytohelpit.Talkinpairsaboutwhatyoumightdo.Thesephrasesmightbeusefultoyou.Imagineyouarewiththedodoandyoutrytohelpit.Talkinpairsaboutwhatyoumightdo.Thesephrasesmightbeusefultoyou.IntentionPurposeI’mgoingtohelpthedodoIintend/mean/planto

hideitinacaveIwill

trapmanashekillsadodoIfeellikeattackingmanmyselfI’dliketoputmaninacageI’mreadytoteachmanhowtobefriendsIwouldrathernottellyouwhatIthinkofmanWriting

Nowwritealettertothedodototellhimhowyouwillhelphim.Howtoprotectthedodofromman

buildatraptocatchmanResult:manwillnotwanttoattackthedodoanymore.helphimbyattackingmansohewillleavethedodoaloneHowtoprotectthedofromman·gotoanotherisland·hidethedodoResult:dodoswillliveacalmandpeacefullife.Howtoteachmantohuntanotheranimal·givemanamealoffriedfish·encouragehimtojoinyouonafishingexpeditionResult:manwillleavedodosalone.DearDodo,IamwritingtoyoubecauseIhaveheardofyourproblems.IknowmanistryingtokillallthedodosandIwanttohelpyou.Herearemyideas.Samplelettertothedodo:First,Iwouldliketocomeandattackthemforyousothattheywillleaveyoualone.Iwanttobuildatrapandcatchthemandputtheminacage.Thentheywillnotf