2023學年完整版Unit3UndertheseaPeriod2設計

Period2教學設計教學目標1．Getstudentstolearntheusefulnewwordsandexpressionsinthispart：anecdote,annual,witness,accommodation,shore,opposite,yell,pause,telescope,teamwork,dive,depth,lip,urge,abandon,shark,relationship,help...out.2．Letstudentslearnaboutseveraldifferenttypesofwhales,especiallythekillerwhales.3．Enablethestudentstolearntotalkabouttheirfavoriteseaanimals.4．Developstudents'readingabilitybylearningtoreadaboutthekillerwhalesandletthemlearndifferentlearningskills.5．Developtheircreativethinkingability.6．Arousestudents'greatinterestinseaanimals.7．Makethemawareoftherelationshipbetweenmanandanimalsandtheimportanceofbanningwhaling.8．Developstudents'senseofcooperativelearning.教學重點1．Readingcomprehensiontothetext.2．Learningmoreaboutthekillerwhalesandunderstandingtherelationshipbetweenthekillerwhalesandthewhalers.3．Importantwordsandexpressions.教學難點1．Therelationshipbetweenthekillerwhalesandthewhalers.2．Developstudents'readingability.教學課時1課時教學方法1．Individual,pairandgroupwork.2．Task－basedteachingandlearning.3．Quiz,discussion,blank－filling,retelling,debate.教學工具Acomputerandaprojector.教學過程Step1Warmingup1．Asksomestudentstoshowsomepicturesoftheirfavoriteseaanimalsandintroducethemtotheclass.Theintroductionshouldcovertheseaspects：·TheEnglishandChinesenameofyourfavoriteseaanimal.·Wheredidyoufindit?·Somefeaturesofit,itsdistribution,orlivingcondition.Anythingaboutitiswelcome.·Whydoyoulikeit?Sampleintroduction：①Myfavoriteseaanimalisdolphins(海豚)．Ifoundthematanaquariumthissummerholiday.Dolphinsareverymeek(溫順的)．Neitherastimidanimalsinvirginforestswhorunawayimmediatelytheydiscoverastranger,norasbeastsinremotemountainswhobarefangsandbrandishclawsthemomenttheyencounteraperson,dolphinsarealwaysfriendlywithpeople.Dolphinsandhumanbeingshavebeenonfriendlytermsallalong.Ilikedolphins,becausedolphinsaretrulyintellectual.Theycanevenimitatesomepeople'svoiceafteraperiodoftraining.Yet,dolphinshaveintelligencedifferentfromcommonanimals.Thevolumeandmassoftheirbrainareamongthemostconsiderableintheanimalworld.Uptothepresentmoment,scientistshavetwodifferentviewsonanimals'intelligence：oneisthatofallanimals,chimpsarethemostintellectualandcapable；anotheristhatchimpsarenomorecapableofstudyingthandolphins,anditisprobablethatdolphinsaremoreintellectualthanchimps.Therefore,somepeopleconsiderdolphinsas“wizardsinthesea”．Whenmentioningdolphins,peoplewillprobablyspeakhighlyoftheirsupernormalintelligenceandability.Inthataquarium,itiscommonthatdolphinsaregivingawonderfulperformancebyfollowingthetrainer'sinstructions.Theyseemtobecapableofunderstandingwhatmankindexpressesandtakingactionsaccordingtotheinstructions.Atpresent,themajorityofpeoplemarvelatdolphins'supernormalintelligenceasakindofseaanimal.Buttowhatextentcandolphins'intelligenceandabilityachieve？Itremainstobeprobedandresearched.②Myfavoriteseaanimalistropicalfish(熱帶魚)．Ifoundthemonasnorkelingtrip.Iwasattractedbyitscolorfulappearance.Inthehalfanhour'stripfromtheshore,Ifoundcoralreefs,tropicalfishandothermarinelife.Excitedly,Iboughtsomefisheshome.Itwasmyfirsttimetoraisetropicalfish.Onemonthagomyfriendtoldmethattropicalfishareeasiertoraisethanthegoldenfish.Herwordsletmethinkofanotherfriendofmine.Heisraisingtropicalfish.Iamfeedingfourcategoriesoftropicalfish.Twoblackmarry,eightpeacocks,anothertwofishes,althoughIdon'tknowtheirnames,arethemostbeautiful.Thepeacockisthesmallestandisn'tcolorfulasIhaveseeninotherplacesbefore.Myfriendtoldmetheywillbebeautifulwhentheygrowup.SoIputtheeightpeacockfishintoasmallfishjar.Iobservethemeverydayandisexpectingthemtobebiggerandmorecolorful.Twoofthefourbigtropicalfisheshavediedincludingthebeautifulone.Perhapsthebeautifulfish'slifeisfragile.Ifitistrue,thenIdon'texpectthesmallpeacockstoturnbeautiful.Ishouldn'tbesogreedytowantboth.Thattheyjusthavestronglifeisenoughforme.2．Theteachershowsthepictureofakillerwhaleanddoasmallquizaboutit.(1)What'stheChineseandEnglishnameofthiswhale?虎鯨Killerwhales(2)CanyoumatchthesewhaleswiththeirChineseandEnglishnames？(Showstudentssomepicturesofdifferentwhales.)baleenwhale須鯨spermwhale抹香鯨bluewhale藍鯨whitewhale白鯨(3)Whichofthesekindsofwhalescangrowtobethelargest?Bluewhales藍鯨(about21－27minlength,100－120tonsinweight)(4)Humanshavebeenhuntingwhalesformorethan__A__years.A．2000B．1000C．500(5)Willthekillerwhalesattackpeopleandeatthem？No.(6)Doesafemalekillerwhalegivebirthtoababywhaleorlayeggs？Givebirthtoababywhale.(7)Whatdoesanewly－bornbabykillerwhalefeedon？__C__A．Smallseaanimals.B．Seaplants.C．Itsmother'smilk.(8)Dothekillersbelongtothefamilyofdolphinsorwhales？Dolphins.(9)Malekillerwhaleshavealifeexpectancyof__B__years,whilefemalescanliveaslongas__D__years.A．40－50B．50－60C．60－70D．80－90(10)Killersarehighlysocialanimalsthattravelingroupscalledpods(群)．Podsusuallyconsistof__A__whales.A．2－50B．20－50C．30－60(11)Howmanysoundscanakillerwhalemake？62sounds.(12)Arekillersendangeredspeciesandinneedofconservation？No.(13)Thekillerwhalesaresometimescalledthe“__A__ofthesea”becausetheyarebothveryfierce.A．wolfB．dogC．tigerStep2Pre－reading1．ReadthewordsinPre－readingonPage19quicklyandfillintheform.WriterAnoldmancalledClancyOccupation·AwhalerStyle·AnecdotesTime·Atthebeginningofthe20thcenturyPlace·AustraliaWhathappened·Thekillerwhaleshelpedthewhalerscatchabaleenwhale.Step3Skimming1．Glancethroughthetwoanecdotesanduseonesentencetogetthemainideaofeachanecdote.Mainideas：Anecdoteone：Thekillerwhaleshelpedthewhalerstocatchabaleenwhale.Anecdotetwo：OldTomsavedawhalerJames.2．Fillintheblankswiththenamesoftherolesinthetext.(1)______was16yearsofagewhenhewenttoworkatthewhalingstation.(2)______orderdClancytogototheboatastherewasawhaleoutthereinthebay.(3)______wasswimmingbytheboatshowingthewhalerstheway.(4)______toldClancythattheywouldreturnthenextdaytobringinthebodyofthewhale.(5)______wascarriedbythewavesfurtherandfurtherawayfromthewhalers.(6)______knewthatOldTomwouldprotectJames.Suggestedanswers：(1)Clancy(2)George(3)OldTom(4)Jack(5)James(6)RedStep4Scanning1．Readthesetwoanecdotescarefullyandfindoutsomeverbsorverbphrasestodotheblank－fillingworksheet.Anecdoteone：Therewasperfectcooperationbetweenthewhalersandthekillerwhales.BeforethehuntThekillers'action：Threw_itselfout_ofthewaterandthencrashed_downagain.Swam_bytheboat,showingthewhalerstheway.Circledbacktotheboat,leadingthewhalerstothehunt.Thewhalers'reaction：Awhaleryelledout.Georgeranahead_of_clancy.Clancyraced_afterhim.Theyjumped_into_theboatwiththeotherwhalersandheaded_outintothebay.DuringandafterthehuntThekillers'action：Apackofkillersarethrowing_themselvesontopofthewhale'sblow－h(huán)oleto_stopitbreathing；someothersarestoppingitfleeing_outtosea.Thekillersstartedracing_betweenthewhalers'boatandthewhale,justlikeapackofexciteddogs.Withinamomentortwo,thewhale'sbodywasdragged_down_intothedepthsofthesea.Thewhalers'reaction：Themaninthebowoftheboataimedaharpoonatthewhaleandletitgotohitthespot.Startedturningtheboataroundtogohome.Anecdotetwo：ThedangersfacingJames：(1)Hewaswashed_off_theboatandwascarried_away_byroughwaves.(2)Therewasasharkoutthere.ThehelpofferedbyOldTom：(1)OldTomwouldn't_let_thesharknear.(2)OldTomfirmlyheldJamesupinthewater.2．Readingaloudandunderliningexpressions.Studentsreadthetextaloudtothetapeandunderlinealltheexpressionsinthetext.Putthemdownintotheirnotebooksafterclassashomework.Suggestedanswers：Collections：atthetime,witnesssth.withone'sowneyesmanytimes,sortoutmyaccommodation,intimetodosth.,crashdown,yellout,aheadof,fleeouttosea,aimat,letsth.go,bedraggedswiftlydownintothedepthsofthesea,inthemeantime,haveagoodfeedonsth.,becarriedfurtherandfurtheraway,befirmlyheldupinthewater3．Reading,identifyingandsettling.Studentsskimthetextonceagainandidentifythedifficultsentences.Letthemtryanalyzingthestructuresofthedifficultsentencesanddiscussthemamongtheirgroupmembers.Theymayalsoturntotheteacherforhelp.·...Georgedidn'tlikebeingkeptwaiting...·...Icouldseeawhalebeingattackedbyapackofaboutsixotherkillers.·Beingbadlywounded,thewhalesoondied.·...Icouldseehewasterrifiedofbeingabandonedbyus.Step5DiscussionAfterthestudentsreadthepassage,askthemtodiscussthefollowingquestionsingroupsandthenreporttotheclass.1．WhyhasthekillerwhalegotthenameOldTom?2．Doyoulikekillerwhales？Whyorwhynot?Suggestedanswers：1．OldTomisaperson'sname.Inmyopinion,thereasonswhythekillerinthetextiscalledsomaybetwo.Foronething,thekillerthatshowedthewhalersthewaytothehuntandsavedJamesmustbeamalekillerwhalebecauseTomisaman'sname.Foranother,thewhalerscalleditOldTom,justastheywerecallingaman.Thatistosay,thewhalerstreateditastheirdearfriend.Inthemeantime,thekilleritselfmustbeveryfriendlytothewhalersandhelpedthemalotinhuntinginthesea.Inreturn,thekillercangetpartofthebaleenwhaleasitsfood.Sotosomeextent,thewhalersandkillersaredependingoneachother.Theycooperatedwellandlivedinharmonywithoneanother.2．IlikekillerwhalesbecausewhenJamesfellofftheboat,thekillerwhalenotonlyprotectedhimfrombeingdrownedbutalsowouldn'tletthesharknear.Theyaresocleverandfriendlytohumanbeings.What'smore,theyworkedasateam,whichshouldbelearnedbyuswhenweareworking.Idon'tlikethem.Thoughtheyarecleverandfriendlytous,theyaretoofierce.Tomygreatsurprise,theyshouldeatthefleshofanotherwhale.Icouldhardlybelieveit.Ihaveneverheardofoneanimalkillinghisfamiliesandeveneatingtheirmeat.Howpitifulitis!Step6Further－thinking1．Whatelsedoyouthinkisamazinginthestory？Showyourevidence.2．Whatisananecdote?Suggestedanswers：1．Ithinkitissoamazingthatwehumanbeingsshoulduseoneanimaltoattackorhuntanotheranimalevenhisownfamilymembers,justlikedogsthathelphuntershuntanimals.Ithinkthatthekillerwillreturnthebodyofthebaleenwhaleinsteadofkeepingitoreatingitupisveryamazing.ButIguessthekillerwhalesarejustfondofthetasteofthebaleenwhale'slipsandtongue.Ortheyjustwanttoshareitwiththewhalersinreturnfortheircooperation.2．Accordingtothetext,asfarasIamconcerned,ananecdotemustbeanexcitingoramazingstory.Step7ConsolidationAskstudentstoretellthepassagewiththehelpoftheirworksheet.1．PleaseretelleitherofthetwoanecdotesinthenameofOldTom,thebaleenwhaleorJames.Youranecdoteshouldatleastconsistoftwoparagraphs：Paragraphone：aboutthewriter,time,placeandwhathappenedParagraphtwo：detailedinformationabouttheanecdoteForreference：InthenameofOldTomIamOldTom,akillerwhale.IliveinthesoutheasternoceanofAustralia.EnormousasIam,Ineverharmorattackpeople.Instead,Ialwayshelpthewhalerscatchbaleenwhales.Atthebeginningofthe20thcentury,itwasIandmycompanionswhoassistedthewhalersinhuntingahugebaleenwhale.Andlater,IdidsaveJamesfrombeingdrowned.Onthatday,whenIfoundabaleenwhalenearby,Iquicklythrewmyselfoutofthewaterandcrasheddownagain.Assoonastheysawthisandheadedouttothehunt,Iswambytheboat,showingthemtheway.Usuallyweworkasateam—apackofaboutsixofuskillers.Somethrewourselvesontopofthewhale'sblow－h(huán)oletostopitbreathing.Andthoseothersstoppeditfleeingouttosea.Atlast,wesucceededincatchingit.Inthemeantime,weenjoyedthelipsandtongueofthebaleenwhale,leavingtherestofittothewhalersthenextday.Oneday,Jameswaswashedofftheboat.Theseawasrough.Thewaveswerecarryinghimfurtherandfurtheraway.Worsestill,Isawasharkswimmingaround.FromJames'sface,Icouldseehewasterrifiedofbeingabandonedbyothersandattackedbytheshark.ButIwouldn'tletthesharknear.Whentheyapproachedhim,Ihadbeenholdinghimupinthewaterforhalfanhour.Idohopeyoucouldwitnessthemwithyoureyes.Andmostimportantly,youshouldlearnfromus—“workasateam”！InthenameofthebaleenwhaleIwasapitifulbaleenwhale.IoncelivedinthesoutheasternoceanofAustralia.Atthebeginningofthe20thcentury,amisfortunedidfalluponme.Tomygreatsorrow,Iwascorneredandkilledbythewhalerswiththehelpofanotherkindofwhalecalledkillerwhales.Onthatday,IwasfoundbyakillerwhalecalledOldTomnearby.Hequicklythrewhimselfoutofthewaterandcrasheddownagain.Assoonasthewhalerssawthisandheadedouttothehunt,heswambytheboat,showingthemtheway.Usuallythekillersworkasateam—apackofaboutsixofthem.Somethrewthemselvesontopofmyblow－h(huán)oletostopmebreathing.Andthoseothersstoppedmefleeingouttosea.Atlast,Iwaswornoutandhadnoluck.Iwasbadlywoundedbyaharpoon.Ididnothingwrong.Whydidtheywanttokillme？Later,Iwasdraggeddownintothedepthsofthesea,havinghadmylipsandtongueeaten.Iwassentbacktothewhalersthenextday.Ireallyhatedthekillers.Iftheyhadn'thelpedthewhalers,Icouldhavefledouttoseatoenjoymyrestlife.InthenameofJamesIamJames,awhaler.IliveonthesoutheasterncoastofAustralia.Atthebeginningofthe20thcentury,IwassavedbyOldTom,akillerwhale.Believeitornot,thekillerwhalescannotonlyhelpushuntbutalsosavepeoplewhentheyareindanger.Oneday,OldTomfoundabaleenwhalenearby,itquicklythrewitselfoutofthewaterandcrasheddownagain.Assoonaswesawthisandheadedouttothehunt,itswambytheboat,showingustheway.Usuallythekillersworkasateam—apackofaboutsixofthem.Somethrewthemselvesontopofthebaleenwhale'sblow－h(huán)oletostopitbreathing.Andthoseothersstoppeditfleeingouttosea.Atlast,wesucceededincatchingit.Inthemeantime,thekillersenjoyedthelipsandtongueofthebaleenwhale,leavingtherestofittousthenextday.Anotherday,Iwaswashedofftheboat.Theseawasrough.Thewaveswerecarryingmefurtherandfurtheraway.Tomakemattersworse,Isawasharkswimmingaround.Iwasterrifiedofbeingabandonedbyothersandattackedbytheshark.Buttomysurprise,OldTomwouldn'tletthesharknear.Whenmycompanionsapproachedme,IhadbeenheldupinthewaterbyOldTomforhalfanhour.Thisexperienceleftadeepimpressiononme.IreallyappreciatedOldTom.Itwasitthatgavemeasecondlife.Step8DebateThelastwhalingstationinAustraliaclosedin1978.Whalesarenowanendangeredspeciesandprotectedbyaninternationalban,butsomecountriesopposetheban.Ingroupsdiscussthereasonsforandagainstbanningwhaling.Step9Homework1．Writedowntheusefulnewwordsandexpressions,thenlearnthembyheart.2．WritedownananecdoteinthenameofOldTom,thebaleenwhaleorJames.eq\o(\s\up7(),\s\do5(備課資料))PhysicalDescriptionThekillerwhale,ororca,isthelargestmemberofthedolphinwhalesarelargeandrobustwithabluntheadandreducedtheirstrikingpigmentation,theyarenotoftenconfusedwithotherspeciesintheirnaturalarejetblackwithawhitepatchbehindandabovethelowerjawandthroatarealsowhite,contiguouswithawhitebellypatchthatextendsbacktothegenitalundersidesoftheflukesarewhiteandwhitelobesextendupwardsfromthewhitebellytobehindthedorsalgreysaddlepatchisfoundbehindthedorsalfin,theshapeofwhichisuniquetoindividualtalldorsalfinofmatureanimals,especiallymales,canreachuptometersfeet)．Malesreachmeters(28feet)inlength,whilefemalesreachmeters(22feet)．NaturalHistoryKillerwhalesareoneofthemostcosmopolitanspeciesofwhales,withadistributionthatspanstropicaloceansandarcticarehighlysocialandformstrongandpersistentsocialbondswiththeirpodaremadeupofextendedfamilymembersand2ormorepodsmaycometogetherforshortperiodstoworld'skillerwhalepopulationseemstoconsistofsubpopulationsadaptedtolivewithinthespecializednicheoftheirpod'smovementstendstofollowthoseoftheirintendedpreywhich,dependingonlocation,mayincludesalmonherring,baleenwhales,penguinsandseals.StatusInCanada,killerwhalesarelistedasthreatenedbytheCommitteeontheStatusofEndangeredWildlife(COSEWIC)andareprotectedunderthenewfederalSpeciesatRiskAct(SARA)．Otherpopulationsworldwidemaybeprotectedunderspecificnationallegislation.ThreatstotheSpeciesAlthoughtheglobalpopulationofkillerwhalesisnotendangered,differentregionalpopulationsareandtransientpopulationsoffthecoastofVancouver,CanadaandWashingtonState,.,weredepletedbythelivecaptur