B2U4AnimalExtinction公开课课件.ppt

Earthsong,wordsandexpressions,extinction灭绝，灭亡tensofmillionsof数千万secure安全的comeintobeing产生，形成dinosaur恐龙inspect检查，视察incident事件，事变accordingto根据，依据setatrap设陷阱，设圈套,Lookatthesepicturesandanswerquestions:,They_alongtimeago.,disappeared,/diedout,why,howandwhen,Q1:Whatarethey?,Q2:Whathappenedtothem?,Theyare_.,dinosaurs,AnimalExtinction,1Whendidthedinosaurslive?,Readthetext,andanswerquestions.,Step2:Findingdetails,Tensofmillionsofyearsago,longbeforehumanscameintobeing.,Theydiedoutsuddenlyabout65millionyearsago.,2Whendidthedinosaursdisappear?,3.Whatarethespecialcharactersofthenewspeciesofdinosaurs?Howdidthescientistsknowthat?,Theyarebird-likedinosaurs.Theycannotonlyrunliketheothersbutalsoclimbtrees.Thescientistslearnedthisfromthewaytheboneswerejoinedtogether.,Whydinosaursdiedoutsuddenly?,1.Whatarethescientistsopinions?,2.Whatisyourideaontheextinctionofdinosaurs?,Dinosaurslivedontheearth_human_andtheirfutureseemed_atthattime.Thereweremanydifferentkindsofdinosaursandanumberofthem_liveinChina.Notlongago,scientists_thebonesofararenewspeciesinLiaoning,andtheywere_tofindthatthespeciescanbothrunandclimbtrees.Dinosaurs_suddenlyabout65millionsyearsago._somescientists,itcameafteran_,whileothersthinktheearthgot_hotforthemtoliveonanymore,butnobodyknows_whyandhowthey_.,Step3Consolidations,before,cameintobeing,secure,usedto,inspected,surprised,diedout,unexpected,incident,too,forsure,disappeared,Accordingto,TheStoryoftheDodo,WhokilledDodo?,Diddodosdieoutbyaccident?,Wastheresomeonewhokilleddodos.,_,IliveontheIslandofMauritius.Wewent_andI_foodwithMan.However,Ibegantowonderwhyseveralofmydodofriends_.Ibelievedhimbutwhenmoredodos_Isetatrap.Mymotto:_.,Listenandfillintheblanks:,Onceuponatime,everywheretogether,shared,haddisappeared,disappeared,Becarefulwhoyoutrust,Tibetanantelope,藏羚羊,OfficialMascots（吉祥物）oftheBeijing2008OlympicGames,Whatdoyouthinkofthosepoachers（偷猎者）action?,Inthe1980sand1990s,some20,000TibetanAntelopeswerekilledbysmugglers（走私者）eachyeartogettheanimalsvaluablehairforshawls（披巾）.Ashawlofthatkindcanbesoldforasmuchas30,000USdollars.,pandawhiteflagdolphin,SouthChinatigermiludeer,Whatcanyoudotohelpthem?,Whatcanwedotohelptheanimals?,Slogan(口号):Nobuying,nokilling!,Homework:Usethewordsandexpressionstofillintheblanksonthepaper.,Fillintheblanks,Manyyearsago,myfamilyu_t_liveintheforestofSouthernChina.Wehadabigfamilyandwewerethekingoftheforestandourfutureseemeds_atthattime.However,sincethegunsc_,peoplekilledusforfurandbones.Asaresult,ourfamilyalmostd_.Nowonlyafewofusliveinthezoosandthecircuses(马戏团).A_thescientists,noneofourfami