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浙江省2013年高中英语-Unit4-Using-language课件-新人教版必修2VIP免费

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Unit4extinctionextinctiondinosaurdinosaurinspectinspectincidentincidentdustdustfiercefiercen.n.灭绝;消亡灭绝;消亡n.n.恐龙恐龙vt.vt.检查;视察检查;视察n.n.事件;事变事件;事变n.n.灰尘;尘土;尘埃灰尘;尘土;尘埃adj.adj.凶猛的;猛烈的凶猛的;猛烈的Wordspreviewcomeintobeingcomeintobeingaccordingtoaccordingto形成;产生按照;根据……所说ExpressionspreviewAnimalextinctionAnimalextinctionFastreading1.Whendiddinosaurslive?2.Whendiddinosaursdieout?Tensofmillionsofyearsago.About65millionyearsago.3.AccordingtotheUNreport,how3.AccordingtotheUNreport,howmanyanimalsandplantshavemanyanimalsandplantshavedisappearedinthelast500years.disappearedinthelast500years.844Detailedreading:TrueorfalseDetailedreading:Trueorfalse1.1.ThereweremanydifferentkindsofThereweremanydifferentkindsofdinosaurandallofthemhavebeendinosaurandallofthemhavebeenfoundinChina.foundinChina.2.2.Notlongago,ararenewspeciesofNotlongago,ararenewspeciesofbird-likedinosaurwasdiscoveredbird-likedinosaurwasdiscoveredinHenanProvince.inHenanProvince.anumberLiaoningFF3.Somescientistsaresuredinosaursdiedoutbecausetheearthgottoohotforthedinosaurstoliveonanymore.4.Dinosaursdiedoutsuddenlyabout65millionyearsagoandmanyanimalshavedisappearedinthelast500years.FTthinkDiscussthepossiblereasonsforthedisappearanceofdinosaurs.Thinkaboutwhatismentionedinthetext.1.Itcameafteranunexpectedincidentwhenahugerockfromspacehittheearthandputtoomuchdustintotheair.2.Theearthgottoohottoliveon.DiscussthepossiblereasonsDiscussthepossiblereasonsforthedisappearanceofforthedisappearanceofdinosaurs.Theremaybedinosaurs.Theremaybeotherreasonsforit.otherreasonsforit.ForreferenceForreferenceThesuddenThesuddenmassextinctionmassextinctionofthenon-ofthenon-aviandinosaurs,whichoccurredaroundaviandinosaurs,whichoccurredaround65millionyearsago,isoneofthemost65millionyearsago,isoneofthemostintriguingmysteriesinintriguingmysteriesinpaleontologypaleontology((古生古生物学物学)).Thenatureoftheeventthatcaused.Thenatureoftheeventthatcausedthismassextinctionhasbeenextensivelythismassextinctionhasbeenextensivelystudiedsincethe1970s.Atpresent,severalstudiedsincethe1970s.Atpresent,severalrelatedtheoriesarebroadlysupportedbyrelatedtheoriesarebroadlysupportedbypaleontologists:paleontologists:AsteroidcollisionMultiplecollisionsEnvironmentchangesdodo渡渡鸟Beforelisteningtothedodo’sstory,trytopredictinpairshowitmighthavebecomeextinct.ListentothetapeandchoosetheListentothetapeandchoosethesentenceonpage30whichgivesthesentenceonpage30whichgivesthemainideaofthestory:mainideaofthestory:Thisstoryisabouthowthedodobecameextinct.No1No1iswrong.Itisnotfairtoblametheiswrong.Itisnotfairtoblamethedodoforhisdisappearance.dodoforhisdisappearance.No3No3onlyexplainshalfthestory.Thedodoonlyexplainshalfthestory.Thedodoandmandidbecomefriendsbutonlyandmandidbecomefriendsbutonlybecausemanwantedtokillthedodosasbecausemanwantedtokillthedodosaseasilyaspossible.easilyaspossible.No4No4iswrongbecausetheotheranimalsiswrongbecausetheotheranimalsandbirdsdidnotdomuchtosavethedodo.andbirdsdidnotdomuchtosavethedodo.Theywarnedhimbutdidnothelphim.Theywarnedhimbutdidnothelphim.ListentothetapeandchoosetheListentothetapeandchoosethecorrectanswertocompleteeachcorrectanswertocompleteeachsentenceonpage30.sentenceonpage30.Keys:1C2B3CListeningtextThestoryofthedodoOnceuponatimeIlivedontheislandofMauritius.Iwascalled“dodo”.Th...

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浙江省2013年高中英语-Unit4-Using-language课件-新人教版必修2

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