人教新課標(biāo)選修7第3單元課件市公開課一等獎(jiǎng)省賽課獲獎(jiǎng)?wù)n件

UndertheSeaUnit3第1頁Wordspreviewsnorkelaquariumanecdoteannualvi.戴潛水通氣管潛泳n.(潛水艇或潛水者)通氣管n.水族館；養(yǎng)魚缸n.軼事；奇聞adj.每年；按年度計(jì)算n.年刊；年鑒第2頁Today,we’regoingtotakealookattheworldunderthesea.So,areyouready?第3頁Now,weareonasnorkelingtripunderthesea.We’llcomeacrossagreatvarietyofmarineanimals.Comeon!第4頁Dolphins海豚Whatarethey?第5頁Turtle海龜Look.It’scomingtowardsus.第6頁Seahorse海馬What’sthis?第7頁Squid魷魚第8頁Seastar海星Thislooksbeautiful!第9頁Jellyfish水母第10頁Coral珊瑚第11頁Angelfish天使魚Differentkindsoflittlefish第12頁Anemonefish?？~第13頁Clownfish第14頁Asharkiscoming.Lookout!It’sdangerous.第15頁Henoticedus.We’dbetterleavehimalonebeforeit’stoolate.Bye,MrShark!第16頁Wearesafenow.AndIcaughtaseastarneartheshore.第17頁Ifyoulike,wherecanyougotoseemoreabouttheoceanlife?onaboattripinbooks,ontheInternet,intheOceanPark,onTVetc.atanaquarium第18頁

Ingroups,makealistofplantsandanimalsthatliveundertheseathatyouandyourclassmateshaveseeninanyofthewayslistedabove.Sharewhatyouknowabouttheseplantsandanimals.第19頁What’shappeninginthepictures?AKillerWhale第20頁Whalesarehuge,intelligentseamammals.Theybreatheairthroughblow-holesintolungs(unlikefishwhobreatheusinggills).Whaleshavesmooth,shiny,streamlined(流線型）bodiesthatmoveeasilythroughthewater.Whatisawhale?第21頁Therearetwotypesofwhalesalivetoday:toothedwhales(齒鯨類)andbaleenwhales(須鯨類).Toothedwhaleshaveteethandasingleblowhole.Theyfeedoneatfishandotherseamammals.Baleenwhalesarelargerthantoothedwhales.Theyarefilterfeeders(濾食者)thatusebaleentosieve(過濾)

food,andhavetwoblowholes.Classificationofwhales第22頁Killerwhales(虎鯨)belongtotoothedwhales,whoarethelargestofthedolphinsandkingofthesea,biggestcarnivore(食肉動(dòng)物)ofthesea,killingallkindsofanimalsinthesea,eventhehugebluewhale,liketigersonland,workinginateam.第23頁Averagelifespan:50to80yearsSize:7to9.7mWeight:upto6tons第24頁Killerwhales第25頁Baleenwhalesarecharacterizedbyhavingbaleenplatesforfilteringfoodfromwater,ratherthanhavingteeth.Baleenwhalesaregenerallylargerthantoothedwhales,andfemalesarelargerthanmales.Thisgroupincludesthelargestknownanimalspecies,theBlueWhale.第26頁

Baleenwhales第27頁Whatdoyouthinkishappeninginthepicture?Readtheintroductionofthepassageonpage19andthenfillinthechartbelow.第28頁WriterVocationStyleTimePlaceMainidea

ClancyAwhalerAnecdotesAtthebeginningofthe20th

centurySoutheasterncoastofAustraliaThekillerwhaleshelpedthewhalerskillbaleenwhalesBriefintroductionofthepassage第29