新人教版 英语 book7 unit3 under the sea warming-up and reading ppt课件.ppt

Unit3UndertheSea,Warmingup,Benthalworld/underseaworld,Haveyouseenplantsandanimalsthatliveunderthesea?Wheredidyouseethem?,Onasnorkelingtrip,Atanaquarium鱼缸,Onaboattour,Inbooks,Infilms,OnTVnatureprogrammes,Ontheinternet,Anemone海葵,anemone,anemonefish,海葵,seastar,turtle,seahorse,jellyfish水母,seal海豹,bowhead大头鲸,bluewhale,octopus章鱼,oyster牡蛎,lobster龙虾,crab,krill磷虾,Krill,groupofshrimp-likecrustacean(甲壳类),isknowntobethemainfoodofbaleenwhales,Dolphins海豚,Shark鲨鱼,Angelfish天使鱼,Anemonefish,Parrotfish鹦鹉鱼,sea-turtle海龟,eel鳗鱼-海中之蛇,Whitewhale白鲸,Killerwhale虎鲸,seahorse海马,sea-slug海蛞蝓/海兔,kuoyu,clam蛤,ge,SeaStar海星,Coral珊瑚,jellyfish水母,Diver潜水员,Letusgotoseethelifeinbluewater,Pre-reading,Doyouknowaboutwhales?,suchas,thebaleenwhales,thekillerwhales,kingofthesea,biggestcarnivore(食肉动物)ofthesea,killingallkindsofanimalsinthesea,eventhehugebluewhale,liketigeronland,workinginateam.,killerwhales,baleenwhales,shark,Aftertheinterview,showthevideoof“FindingNemo”(海底总动员之海葵鱼）,WarmingupII(3ms),Unit3Reading,OldTomTheKillerWhale,Today,weregoingtotakealookattheworldunderthesea.So,areyouready?,Now,weareonasnorkelingtripunderthesea.,Wellcomeacrossagreatvarietyofmarineanimals.Comeon!,Dolphins海豚,Whatarethey?,Turtle海龟,Look.Itscomingtowardsus.,Seahorse海马,Whatsthis?,Squid鱿鱼,Seastar海星,Thislooksbeautiful!,Jellyfish水母,Coral珊瑚,Angelfish天使鱼,Differentkindsoflittlefish,Anemonefish海葵鱼,Clownfish,Asharkiscoming.Lookout!Itsdangerous.,Henoticedus.Wedbetterleavehimalonebeforeitstoolate.Bye,MrShark!,Wearesafenow.AndIcaughtaseastarneartheshore.,Ifyoulike,wherecanyougotoseemoreabouttheoceanlife?,onaboattrip,inbooks,ontheInternet,intheOceanPark,onTVetc.,atanaquarium,Ingroups,makealistofplantsandanimalsthatliveundertheseathatyouandyourclassmateshaveseeninanyofthewayslistedabove.Sharewhatyouknowabouttheseplantsandanimals.,Whatshappeninginthepictures?,AKillerWhale,Whalesarehuge,intelligentseamammals.Theybreatheairthroughblow-holesintolungs(unlikefishwhobreatheusinggills).Whaleshavesmooth,shiny,streamlined(流线型）bodiesthatmoveeasilythroughthewater.,Whatisawhale?,Therearetwotypesofwhalesalivetoday:toothedwhales(齿鲸类)andbaleenwhales(须鲸类).Toothedwhaleshaveteethandasingleblowhole.Theyfeedonfishandotherseamammals.Baleenwhalesarelargerthantoothedwhales.Theyarefilterfeeders(滤食者)thatusebaleentosieve(过滤)food,andhavetwoblowholes.,Classificationofwhales,Killerwhales(虎鲸)belongtotoothedwhales,whoarethebiggestcarnivore(食肉动物)ofthesea,killingallkindsofanimalsinthesea,eventhehugebluewhale,liketigersonland,workinginateam.,Averagelifespan:50to80yearsSize:7to9.7mWeight:upto6tons,Killerwhales,Baleenwhalesarecharacterizedbyhavingbaleenplatesforfilteringfoodfromwater,ratherthanhavingteeth.Baleenwhalesaregenerallylargerthantoothedwhales,andfemalesarelargerthanmales.Thisgroupincludesthelargestknownanimalspecies,theBlueWhale.,Baleenwhales,1.LookatthepictureinPre-reading,thenguesswhatishappeninginthepicture.2.ReadthepassageinPre-reading,thenshowthemthevideoaboutthekillerwhale(虎鲸1）.,Pre-reading(3ms),Whatdoyouknowaboutkillerwhales?,Commonname:KillerWhaleIntroduction:Malescanreachlengthsupto27feetandcanweighupto6ton.Youcantellanadultmalefromanadultfemalebytheshapeoftheirdorsal脊背的fin鳍(maleslonger,upto6feettall).killerwhalesarefoundinalloceansoftheworld.Asagroup,killerwhalesareknowntoeatfish,squid乌贼,seals海豹,sealions,penguins,evenotherwhales.Thus,theyarecalled“KillerWhales”,ReadingIScanning(4ms),Readthetextfast,andfillinthefollowingblankswiththepropernames:,1._was16yearsofagewhenhewenttoworkatthewhalingstation.2._orderedClancytogototheboatastherewasawhaleoutthereinthebay.3._wasswimmingbytheboat,showingthewhalerstheway.,Clancy,OldTom,George,4._toldClancythattheywouldreturnthenextdaytobringinthebodyofthewhale.5._wascarriedbythewavesfurtherandfurtherawayfromthewhalers.6._knewthatOldTomwouldprotectJames.,James,Red,Jack,ReadingIISkimming(6ms),Readthetextagain,thenputthefollowingsentencesintherightorder:,Comprehending,Teachingtask1:,Pleaselistentothereading,andtheningroups,describetherelationshipbetweenOldTomandthewhalersandthenfillintheform.,AnoldmancalledClancy,Awhaler,anecdotes,Australia,Atthebeginningofthe20thcentury,Killerwhaleshelpedwhalerscatchbaleenwhales,Teachingtask2:Puttheeventsinthereadingpassageintothistimeline.,1.Clancyarrivedatthewhalingstation.,4.Themenwenttotheboatandheadedoutforawhalehunt.,2.Heheardaloudnoisecomingfromthebay.,3.Hesawahugeanimalinthewater,whichwasOldTom,thekillerwhale.,7.Thekillersatethelipsandtongueofthebaleenwhale.,5.Thekillerwhaleguidedtheteamtothehunt.,6.Clancyandhismenkilledthebaleenwhalewiththehelpofthekillers.,8.Themenreturnedforthebaleenwhalethenextday.,a.Georgestartedbeatingthewaterwithhisoar.b.ClancyracedafterGeorgetotheboat.c.Clancyarrivedatthewhalingstation.d.Thekillersstartedracingbetweenourboatandthewhale.e.Clancyheardahugenoisecomingfromthebay.f.Clancywassortingouthisaccommodation.g.Clancyrandowntotheshore.h.Themaninthebowoftheboataimedtheharpoonatthewhale.,3,2,4,8,6,5,1,7,Teachingtask3:(Readingandspeaking),Pleasereadthereadingagain,andinpairs,answerthefollowingquestions.1.WhatevidencewastherethatOldTomwashelpingthewhalersout?,Evidenceofhelpingthewhalers,throwitselfoutofthewaterandcrashdownagain.,Letthewhalersknowthattherewasabaleenwhalenearby.,swimbytheboat,Showingthewhalersthewaytothehunt,2.Whatotheranimalsdidtheauthorcomparethekillerwhaleswith?Whydoyouthinkthekillerwhalesbehavedlikethis?,Dogs.Becausetheyknewthat,togetherwiththewhalers,theywouldsoonkillthebaleenwhaleandgetagoodfeed.,3.WhydidGeorgethinkthatthekillerwhalesworkedasateam?,Becausehecouldseethatsomeofthekillerswerethrowingthemselvesontopofthewhalesblowholewhileotherswerepreventingitfromdivingorfleeingouttosea.,4.Whydidthewhalersallowthekillerwhalestodragthewhaleaway?,Becausetheyknewthekillerwhaleswouldleavetherestofthebodytothem.,5.HowdidOldTomhelpJames?Whydoyouthinkhedidthis?,OldTompreventedJamesfromdrowning.OldTomwantedtohelphishumanfriends.,Teachingtask4:Readthetextcarefullyandfillintheblanks.,water,crashed,boat,tongue,team,top,breathing,fleeing,dragged,depths,主旨大意,1.Theauthormainlytellsusinthetextthat_.A.thekillerwhalesareeasilytrainedB.thekillerwhalescanhelpthewhalerscatchthehugewhalesC.thekillerwhaleskillthewhalesfortheirfoodD.thekillerwhalesdragthewhalesunderthewater,Teachingtask5:(Discussing),B,2.Accordingtothetext,whichofthefollowingisTRUE?A.Thefiercekillerswouldattackpeoplewhentheywerehungry.B.Theauthordidntbelievethekillershelpedthewhalerscatchwhalesatfirst.C.Oneofthewhalers,George,likedbeingkeptwaiting.D.Thekillerscouldracewhalesaswellasexciteddogs.,B,3.OldTomthrowsitselfoutofthewaterandthencrashesdowninorderto_.A.givethewhalerstheinformationaboutawhaleB.tellthewhalersitishungryC.helpthewhalerscatchthewhaleD.informthewhalerstorunaway,A,4.Whatisthemainideaofthefirstanecdote?A.AboutahuntingexperienceofoldTom.B.Abouthowthekillerwhaleshelpsthewhalerstohuntawhale.C.AbouthowthewhalerskilledOldTom.D.Abouthowthekillerwhaleskilledthewhales.,B,5.Whatdoestheword“it”inthesentence“Heletitgoandtheharpoonhitthespot”referto?A.Thewhale.B.Theboat.C.Theharpoon.D.Thekiller.,C,6.Whatsthemainideaofthesecondanecdote?A.Fiercekillers,likeOldTom,couldprotectpeople.B.Jameswaswashedofftheboat.C.Itwashardtohandletheboatinroughsea.D.OldTomrescuedJamesfromotherkillers.,A,7.Whydidthewhalersgohomewithoutbringinginthebodyofthewhale?A.Theyjustdidthehuntingforfun.B.Theyleftiteatenupbythekillers.C.Itwasdraggedtothedepthsofthesea.D.Theyjustwaitedforittofloatup.,D,8.Accordingtothetext,thekillerwhalescanprotectmenfrombeingattackedby_.A.whalesB.tigersC.enemiesD.sh