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Listeningandvocabulary,GuesstheChinesemeaningofthewordsaccordingtothepictures.,Volcaniceruption,crater,dustcloud,nuts,galaxy,meteorite,seeds,Somewordsrelatedtodinosaurs,Completethesentenceswiththewordsbelow.adapt,climate,disappear,extinct,evolve,survive,1.The_ofacountryisthetypeofweatherithas.,climate,2.Ifananimalorplantis_,itexistedalongtimeagobutdoesntexistnow.3.Whenthings_,theynolongerhappenorexist.4.Whenpeopleoranimals_,theydontdieafteranaccidentoranillness.,extinct,disappear,survive,5.Ifyoucan_tosomething,youcanchangeinordertomakethesituationbetter.6.Whenanimalsorplants_,theychangeanddevelopoveralongperiodoftime.,adapt,evolve,Discussion1.Howmuchdoyouknowaboutdinosaurs?2.Haveyoueverseenanyfilmsorreadanybooksaboutdinosaurs?Whatinterestsyoumost?,3.Inyouropinion,whydinosaursdisappearedfromtheearth?Giveyourreasons.,Openanswers,Workinpairsandanswerthequestionsaboutdinosaurs.(Listenandcheck)1.Dinosaursruledtheearthforabout_millionyears.A.twoB.twentyC.twohundred,2.Theyate_.A.plantsB.meatC.bothplantandmeat3.Theybecameextinct_yearsago.A.600,000B.6millionC.66million,4.Theirnearestrelativestodayare_.A.birdsB.fishC.mammals,Tapescript,Goodafternoon,andwelcometothisweekseditionofMysteriesofNature.Todaystopicisabigone-itsdinosaurs,thosestrangecreatureswhichruledtheearthfornolessthantwohundredmillionyears,someofthemwereplanteaters,otherswereliketheinfamous,TyrannosaurusRex,carnivoreswholivedoffmeantandwhoattackedthemorepeacefulplanteatingdinosaurs.Notalldinosaurswerebigsomewerethesizeofchickens,andinfacttheclosestthingstodinosaurslivingtodayareactuallybirds.,Butthemysterywearegoingtotalkabouttodayiswhythedinosaurssuddenlydisappearedexactly66millionyearsago,andtothrowlightonthesubjectweveinvitedoneoftheworldsforemostexpertsonthesubject,fromthePittRiversMuseuminOxford,DrRogerBinfield.,Listentothesecondpartofthetapeanddiscusshowmanyexplanationsaregivenforthedisappearanceofthedinosaurs?,Five.,1.Ameteoritehittheearth.,2.Theystoppedevolving.,3.Theykilledeachother.,4.Avolcaniceruption.,5.Cancercausedbyradiation.,Listentothetapeagainanddecidewhichstatementsaretrue.Ahugemeteoritemayhavehitallthedinosaurs.2.Perhapsadustcloudmadetheworlddark.3.Ameteoritecausedavolcaniceruption.,4.Thedinosaurshadtoeatseedsandnutstosurvive.5.Perhapstoomuchfightingcausedthedinosaurstodieout.6.Onescientistbelievedthedinosaursbecameillwhentheyatethewrongfood.7.Theremaybedinosaurstodaylivinginothergalaxies.,8.DrBinfieldthinksthecraternearMexicowascausedbyameteorite.,Adiscussionafterlistening,Whichtheorydoyouthinkismostlikely,andwhy?,Studentsanswers,Tapescript,(PRES=Presenter,DR=DrBinfieldPRES:Goodafternoon,DrBinfield,andwelcometothepragramme.DR:Thankyou.PRES:Imgoingtocomestraighttothepoint,evenifIthinktheresnotgoingtobeaneasyanswer.,Whydidthedinosaurssuddenlydisappear,almostovernight,66millionyearsago?DR:Youreright.Theresnoeasyanswertothatquestion,buttherearelotsoftheories.PRES:Suchas?,DR:Well,probablythemostwidelyacceptedtheoryisthemeteoriteonePRES:Youmeantheearthwashitbyameteoritefromspace?DR:Yes,thatsright.PRES:Andthedinosaursdiedimmediately?,DR:Notexactly,notallofthem.Themeteoritemayhavehittheearthwiththesuchforcethatitcreatedahugedustcloud,whichstoppedthesunlightfromgettingthroughsotherewasnolight,noheat,andnofood.PRES:Butotheranimalssurvived?,DR:Yes,smallercreatureslikemammals,whichmayhavesurvivedbecausetheyarenutsandseeds.PRES:Whatothertheoriesarethere?DR:Lots.Thedinosaursmayhavestoppedevolving,andbeenunabletoadapttochangesintheclimate.OrtheymighthaveKilledeachother,PRES:Isthatpossible?DR:Ohyes.Theyspentalotoftimeinfighting.Thereagain,itmighthavebeenvolcaniceruptions,notameteorite,whichsentupcloudsofdustandcutoffthelight.Oneveryrecenttheorysaystheydiedofcancer.,PRES:Cancer?Youmeanthedinosaursdiedoutbecausetheyfillill?DR:Yes.AsaresultofradiationcomingfromadyingstarsomewhereinourgalaxyPRES:Thatsoundsfantastic.DR:Well,Ithinkitsunlikely,butitsnotimpossible.,PRES:Whichtheorydoyoubelieve?DR:Idgoforthemeteorite.Ithinkitsthemostlikelyone.AndintheCaribbeansea,offthecoastofMexico,wherethemeteoritemayhavelanded,Languagepointsofthelisteningpracticeliveoff:靠挣钱,过日子Momusedtoliveofftheinterestfromhersavings.,2.Rickdisapprovesofpeoplewhoarelivingoffthewelfare.,妈妈过去靠存款的利息过日子。,里克不赞成靠福利救济过日子的人。,2.gofor:攻击,争取,喜欢,对适应,卖得价钱,Thepresidentialcandidateswentforeachotherinthepapers.,2)Whathesaidaboutyougoesformetoo.,总统候选人在报纸上互相攻击。,他关于你的一番话也适应于我。,4)Annietendstogoforoldermen.,5)Howmuchdidthatcargofor?,那辆车卖了多少钱?,安妮喜欢年龄较大的男人。,3)Jacksonisgoingforhissecondgoldmedalhere.,杰克逊正在争取他在这儿的第二块金牌。,Lookatthewordsandphrasesbelowandchoosethebestexplanation.,Ifsomethingisbackinthenewsitis_.A.inthenewsagain.B.notanimportantnewsstory,2.Ifyouthrowlightonsomethingyou_.A.switchonalightB.makeiteasiertounderstand3.Ifyoucomestraighttothepointyou_.A.saywhatyouwanttosayB.attacksomeone,4.Ifsomethinghappensalmostovernightithappens_.A.quicklyB.inthedark5.Dieoutisusedtospeakabout_.A.onepersonoranimalB.awholespecies,6.Idgoforthemeteoritemeans_.A.chooseB.forget7.Thatsquitesomethingreferstosomething_.A.ordinaryB.extraordinary,
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