Unit3SeaexplorationUsingLanguage课件-高中英语人教版选择性

选择性必修四Unit3SeaExplorationUsingLanguageGettoknowaboutwhalesandotherseaanimalsLearningobjectives:Attheendofthisclass,studentswillbeableto:learnbasicfactsaboutwhalesandreasonsandstepstoresearchthem;2.graspthelisteningstrategies;3.describetheplantowatchandresearchseaanimals.Part1Pre-listeningLookatthepictureandanswerthequestions.1. Whatanimalcanyouseeinthispicture?2. Doyouknowanythingaboutthisanimal?Doyouthinkitisimportanttocarryoutresearchonseaanimals?Why?Part2While-listeningListenandfindthethreethingsthatthecamperswereaskedtodo.1.______________________________________________2.______________________________________________3.______________________________________________Findoutsomefactsforawhaleprofile.Thinkaboutwhytheydowhaleresearch.Gooutwiththemandwriteareportoftheworktheydo.Tip1:Payspecialattentiontothequestionsaskedbythespeaker,especiallytheinterrogatives(疑问词).1.Whichofthefollowingistrueaboutbluewhales?()A.TheyarethelargestanimalalivetodayB.Theycangrowupto100feetandweigh200tonsexactlyC.TheybelongtothetoothlesswhalespeciesD.Theyfeedonfishandlargeseaanimals2.Howmanywhalespecieshaveteeth?()A.Over80B.Morethan70C.Around200D.Exactly100Tip2:Makesureyoufullyunderstandthemeaninginsteadofhurriedlychoosingtheanswersthatcontaintheexactwordsfromthelisteningmaterial.Listentothefactsofwhalesandchoose.AB1.WhatisNOTathreattowhalesaccordingtothetext?()A.ClimatechangeB.OceanacidificationC.PollutionD.Hunting2.Whydoresearcherswanttostudywhales'sounds?()A.TotracktheirmigrationpathB.TomonitortheirhealthconditionC.TocountthenumberofwhalegroupsD.TounderstandtheirintelligenceandbehaviorListentothereasonsfortheresearchandchoose.BD1.Howdoresearchersdistinguishdifferentwhales?()A.BytheirbodyweightandlengthB.BythesoundstheymakeC.BytheiruniquefinsandmarksD.Bytheirmigrationspeed2.Whatdidtheresearchersdoaftercreatingthefinandlocationdatabase?()A.TheysharedinformationwithotherresearchgroupsB.Theytookpicturesofthewhales'finsC.TheynamedthegroupandnumberedeachmemberD.TheyfollowedthewhalegroupwithaboatListentothestepsoftheresearchandchoose.CCListentotheresearchstepsagainandnumberthefollowingsentencesinthecorrectorder.______Afterthat,wegavethegroupofwhalesaname,andeachmemberanumber.______Theywillbeaddedtothedirectorysowecanidentifytheminthefuture.______Mostwhaleshaveslightlydifferentfinsandmarks,whichcanhelpustotellthemapart.______Meanwhile,wealsonotedtheirlocation,sowecantracktheirmovementsandplottheirmigrationpath.______Thenwetookpicturesoftheirfins.______Finally,wecontactedotherwhaleresearchgroupsaroundtheworldtosharetheinformationwiththem.______First,wefollowedagroupofwhaleswiththeboat.______Later,wecreatedadatabaseoftheirfinsandlocations.Tip3:Whenpeopletalkaboutaseriesofactionsoreventshappeninginsequenceoftime,theyoftenusecertainwordsandphrases,suchasfirst,next,then,afterthat,later,andfinally.61824375Fillintheblanksaccordingtothewordsyouhear.Therearemorethan80different______ofwhales,includingthebluewhale.Bluewhalesarethelargestknownanimaltohaveever______.Whalesaredividedintotwomaintypes:thosewithteethandthose______teeth.Toothlesswhalesfeedonverysmall________,whiletoothedwhaleseatfish.Tip4:Notedownthewordsquickly.Youcanjustwriteafewletterswhilelisteningandcompletethewordsrightafterlistening.speciesexistedwithoutorganismsFillintheblanksaccordingtothewordsyouhear.1.Whaleresearchhelps______thenumberofwhales.2.Climatechange,pollutionandhuntingaremajor______towhales.3.Researcherstrackwhales'movementstolearnmoreabouttheirlife______.4.Whalesusecomplex______tocommunicateandhunt.monitorthreatscyclesoundsFillintheblanksaccordingtothewordsyouhear.1.Theresearchteamfollowedawhalegroupwitha______.2.Slightlydifferentfinsandmarkshelpresearchers______whalesapart.3.Theteamnotedthewhales'locationtoplottheirmigration______.4.Aftercreatingadatabase,theygavethewhalegroupanameandeachmembera______.5.Finally,theysharedinformationwithotherwhaleresearchgroupsaroundthe______.boattellpathnumberworldChooseoneseaanimalandgiveanoralreportofyourwatchingandresearchplan.Self-evaluationYesNoCanyougi