《高中英语选择性必修四Unit 3 Using Language》课件

Unit3SeaExploration

UsingLanguageUsingLanguageⅠGettoknowaboutwhalesandotherseaanimalsTeachingobjectives:Bytheendofthisperiod,youwillbeableto…getthemainideaandthekeydetailsbylisteningtotheconversation.learntousesomewordsandphrasestoexpresssequence.developtheawarenessofprotectingseaanimals.4.makeaplanforatriptoseetheanimals.LeadinHowmuchdoyouknowabouttheseseaanimals?Readtheposterbelowanddiscussthequestions.Whataspectofthecampwouldyoulikebest?Doyouthinkitisimportanttocarryoutresearchonwhalesandotherseacreatures?Iwouldliketheopportunitytoseethewhalescloseupbest.Thisresearchhelpsuslearnmoreaboutthewonderfulworldwelivein,anditalsohelpsuslearnmoreabouttheseamazingcreaturessothatwecanbetterprotectthem.Listeningformainidea

ListeningTips:Makeshortnotes&writekeywordsListentotheconversationandanswerthefollowingquestion.Whatthreethingswerethecampersaskedtodo?Tofindoutsomefactsforawhaleprofile.Tothinkaboutwhytheydowhaleresearch.Togooutwithandwriteareportoftheworktheydo.ListeningforidiomsListentotheconversationagainandnumberthefollowingsentencesinthecorrectorder.Afterthat,wegavethegroupofwhalesaname,andeachmemberanumberTheywillbeaddedtothediretorysowecanidentifytheminthefuture.Mostwhaleshaveslightlydifferentfinsandmarks,whichcanhelpustotellthemapart.Meanwhile,wealsonotedtheirlocation,sowecantracktheirmovementsandplottheirmigrationpath.Thenwetookpicturesoftheirfins.Finally,wecontactedotherwhaleresearchgroupsaroundtheworldtosharetheinformationwiththem.

1First,wefollowedagroupofwhaleswiththeboat.Later,wecreatedadatabaseoftheirfinsandlocations.6734285Listeningfor

keyinformationHowmanyspeciesofwhalesarethere?Whatisthecriteriontodividethemaintypesofwhales?Whatdowhalesusesoundfor?Whydothecamperstakepicturesofthewhales’

fins?Whydotheycontactotherresearchgroups？Over80.Thecriterioniswhethertheyhaveteethornot.Theyusesoundstocommunicateandhunt.Thiscanhelpthemtotellthewhalesapart.Theywanttosharetheinformationwiththem.Drawamind-maptoshowthebasicinformationaboutwhales.SpeakingBrainstormexpressions

showingsequenceinthespeaking.Firstly,secondly,firstofall,afterthat,next,later,meanwhile,finallyTelltheirpartneraboutwhathappenedinthewhalewatchingcamp.A:Todaywelearntaboutwhalesandwhaleresearch.First,wefoundsomeinformationandfactsaboutwhales.WeusedthelibraryandtheInternet.B：Whatdidyoudoafterthat?A:Well,afterthatwethoughtaboutwhywedowhaleresearch.B：Butwhydowedowhaleresearch?A:Therearelotsofreasons.Firstofall,weneedtoknowhowmanywhalesthereare.Then,weneedtoknowwheretheygo.Andfinally,weneedtounderstandmoreaboutthem.B：Thenwhatdidyoudonext?A:Afterthat,wewentoutwhalewatching,followingagroupofwhalesinaboat.B：Thatsoundsneat.Didyoujustwatchthem,ordidyoudoanythingelse?A:Westartedbytakingpicturesoftheirfins,sowecouldtellthemapart.Atthesametime,wenotedtheirlocation,sowecouldtrackthem.B：Whatdidyoudoafterwards?A:Wecreatedadatabaseandgaveeachwhaleanameandnumber.Thenfinally,wesharedourinformationwithotherwhaleresearchgroupsaroundtheworld.B：Itallsoundssowonderful!IwishIcouldhavejoinedyou.A:Ido,too.WatchingandTalkingWatchthevideoProtectingBiodiversity

andthentalkwithyourpartnerandmakeaplanforatriptoseetheanimals.

Forourtrip,wewouldliketogototheShanghaiOceanAquarium.Wecanfirstvisitthespecialexhibitionofsavingsharks.Thenwecangotoseetheseahorseswhosenumberdeclinedgreatlyforthepastdecade.However,mostpeopledonotknowmuchaboutseahorsesatall.IthinkweneedtoraiseawarenessaboutseahorsesandmarineconservationinChina.ThelastspotwillbeTheChinesePavilion,whichdisplaystheaquaticorganismsandbio-systemintheYangtzeRiverandsomenationalendangeredrareaquaticcreatures,likeChinesealligatorandChineseSturgeon.UsingLanguageⅡExpressyouropinionsonseaexplorationTeachingobjectives:Bytheendofthisperiod,youwillbeableto…1.figureouttheorganizationandlanguagefeatureofanargumentativeessay.2.learntoexpresstheiropiniononseaexploration.3.writeanargumentativeessayonseaexploration.4.developaproperattitudeonseaexploration.discovernewspeciesdetectenergyresourcespredictpotentialdisastersPre-reading:WarmingupWhatdoyouknowaboutseaexploration?Pre-reading:DiscussionWhataretheadvantagesanddisadvantagesofseaexploration?Advantagesofseaexploration

1.Playafundamentalroleinfillinginthegapsontheblankinformationregardingtheocean.2.Offerinformationneededtobetterunderstandenvironmentalchangesandprotectthesea.3.Helppredictthepotentialdisasters,suchasearthquakesandtsunamis.4.Detectsomenewresourcesfromtheecosystemsthatmightgivebenefitstothemedicaldrugsandotherproducts.5.Leadpeopletolocatethepartsintheoceanthatareactuallyfullofresourcesforus.Pre-reading:DiscussionDisadvantagesofseaexploration

1.Continuousexplorationmayleadtooverfishing.2.Causedamagetosomeoceancreaturesormarinelifeforms.3.Leadtothedestructionofoceantreasures.4.Possibilityofriskstoruintheecosystemsaroundthearea.5.Leadtothewasteofmoney,time,andenergy.Pre-reading:DiscussionWhile-readingReadquicklyforgeneralunderstandingandanswerthequestions.1.What’sthegenre(体裁)ofthetwotexts?

Argumentativeessay2.Whataretheauthors’attitudestoseaexplorationinthesetwotexts?Text1:opposedText2:supportiveLookatthetwochartsbelowanddecidewhichonesupportswhichtext.Text2Text1Ingroups,discussthefollowingquestionsandtakenotes.1.Whatisyouropinionaboutseaexploration?Doyouagreewithoneargumentmorethantheother?Ithinkseaexplorationisawonderfulidea,becauseeveniftherearenoimmediaterewardsforit,toexploreandfindoutmoreaboutourworldisalwaysagoodthing.2.Hasyouropinionchangedafterreadingthetwotexts?

Whyorwhynot?Yes,myopinionhaschanged.BeforereadingText1,Ididnotknowthatseaexplorationcouldaddtoseapollution,viadeepseadrillingforexample.3.Arethereanyotheraspectsofseaexplorationnot

mentionedthatyouthinkareimportant?Wedonotknowwhatwedon’tknow;weneedtoexploretheoceansothatwecanbetterunderstandissuessuchasacidificationwhichleadstoseawatertobecomemoreacidic,andhowtofighttheseproblems;studyingtheoceancausesthecreationofnewtechnologiesthatcanhelpusinotherareas.Toanalyzestheargumentsandevidenceinthetexts.Toexpressyouropinionsonseaexploration.TolearntowriteanargumentativeessaywiththehelpofPEELmethod.exploitgallonmurdermercypossessionopponentlogmarinevt.开发；利用；剥削n.加仑(容积单位，1英制加仑约等于4.5升)vt.谋杀；凶杀；毁坏n.

谋杀；凶杀n.仁慈；宽恕；恩惠n.[usuallypl.]个人财产；拥有；控制n.反对者；对手；竞争者vt.

把……载入正式记录；记录n.正式记录；日志；原木adj.

海的；海产的；海生的Shouldtheseabeexplored?benefits:1.newsourcesoffood.2.Wecangetfossilfuelssuchasoil,gasandcoal.negativeeffects:1.Spillingoilintotheseacausespollution.2.plasticpollution

Whatarethetwoauthors’opinionsabouttheseaexploration?Let’slearnmoredetailsinthepassage.fastreading:readthefirstparagraghandthelastparagraghtheauthoroftext1:agreewiththeseaexplorationordisagreewithit?disagreetheauthoroftext2:agreewiththeseaexplorationordisagreewithit?agreeSkimthetwotextsandanswerthequestionsbelow.1.Whatisthetexttypeofthetwotexts?A.Narration(记叙文).B.Exposition(说明文).C.Practicalwriting(应用文).D.Argumentation(议论文).2.Whatarethethreepartsinargumentativeessay?∙argument论点;∙evidence论据;∙restatement重申/recommendation推荐/acalltoaction号召Readthetwotextssilentlyandfindthearguments划横线andevidence划波浪线Text1para.1---mainargument主论点Seaexplorationhascausedmanyproblemsandwillcontinuetocausemore.checkthearguments分论点andevidence论据init.1argumentevidence21.

Explorationcausespollution.

∙DeepwaterHorizonoilspill∙Plasticpollution2.Miningforresourcesisdamaging.

∙IthurtstheArctic.∙Burningfossilfuelsaddstoclimatechange.3.Overfishingisanissue.

∙Whalesanddolphinsarehunted.

∙Banned,butsomecountriesstilldoingit.3P321text2：mainargument主论点Wemustexploretheoceanswhichcovermostofit.2026/6/3012checktheargumentsandevidenceinText2.argumentevidence1.Seaexplorationisimportantforourfuture.

∙Scientificresearchshipscanhelpaddressimportantissueslikeclimatechange.2.Understandingmoreabouttheseawillalsohelpusmanageitsresourcesbetter.

∙Newmedicines,foodresourcesandenergy.∙Predicteventssuchasearthquakes.33.Weneednewresourcesforfuturedevelopment.

∙Vastamountsofresourcesmaybeundertheseaandice.argument

evidencepara.2分论点Explorationcausespollution.DeepwaterHorizonoilspill深海地平线号漏油事件Plasticpollutionargument

evidencepara.3分论点Miningforresourcesisdamaging.1.Burningfossilfuelsaddstoclimatechange.2.IthurtstheArctic.argument

evidencepara.4分论点Overfishingisanissue.1.Whalesanddolphinsarehunted.2.Banned,butsomecountriesstilldoingit，suchasJapan.argument

分论点evidencepara.1:Seaexplorationisimportantforourfuture.1.Scientificresearchshipscanhelpaddress

设法解决importantissueslikeclimatechange.Text2argument

分论点evidencepara.2:Understandingmoreabouttheseawillalsohelpusmanageitsresourcesbetter.1.Loggingnewspecies，newmedicines,foodresourcesandenergy.2.Predicteventssuchasearthquakes.Text2海星具有解毒散结、和胃止痛、软坚散结之功效。常用于甲状腺肿大、胃痛泛酸、腹泻、中耳炎等症。海马具有强身健体、补肾、舒筋活络、消炎止痛、镇静安神、止咳平喘等药用功效。argument

分论点evidencepara.3Weneednewresourcesforfuturedevelopment.1.Vastamountsofresourcesmaybeundertheseaandice，notjustoilandgasbutalsovaluableminerals矿物质.gascoaloilrockwithoilLookatthetwochartsbelowanddecidewhichonesupportswhichtext.P332_____________Text2_____________Text1checktheanswers见学案P531.C2.Para.1--Para.9BCDEFGAIH阅读1--3BAD讲解学案读文清障的要点2026/6/30学案P51短语：1.add...to...2.tellapart3.takeapictureof4.meandoingsth.5.becauseof6.behometo7.helpaddressimportantissues8.takeaction9.aswellas10.vastamountsof2026/6/302026/6/30经典句式：1.Understandingmoreaboutthesea...2.astechnologyimproves...3.onlytofind...4.somuchthat...5....alive课文语法填空：1.exploiting2.damaging3.wasbanned4.without5.to6.possessions7.Opponents8.its9.and10.economictext1：overexploiting&causingmanyproblems

过度开发

导致许多的问题text2：Weshouldseekforbalancebetweeneconomicneedsandenvironmentalriskswhenweexplorethesea.

Whatisyouropinionaboutseaexploration?Doyouagreewithoneargumentmorethantheother?Ithinkseaexplorationisawonderfulidea,becauseeveniftherearenoimmediaterewardsforit,toexploreandfindoutmoreaboutourworldisalwaysagoodthing.1.Althoughthiswasbannedin1982,somecountriesarestill“murdering”theseintelligentcreatureswithoutmercy.尽管早在1982年就已禁止,但有的国家仍地无情地“谋杀”这些聪明的动物。本句是一个复合句。somecountriesare...是主句；although=though是从属连词，意为“虽然……;尽管……”，引导让步状语从句。(1)用作连词表示“虽然”，两者大致同义，可换用，只是although比though更为正式。Though/Althoughitwasraining,wewentoutside.(2)用作副词although一般不用作副词，而though可用作副词，且一般放在句末(不放在句首)，意为“可是；不过”。It’shardwork;Ienjoyitthough.(3)用于习语在asthough(好像，仿佛)、eventhough(即使，纵然)等固定短语中不能用although。Heisanhonestman,Imustsay,eventhoughIdon’tlikehim.(4)用于倒装though引导的让步状语从句可用部分倒装的形式(注意：倒装后位于句首的名词之前不用冠词)，但although一般不这样用。Childthoughhewas,hedidquitewell.【语境应用】语法填空。1)Wewilltryourbesttomakeit________thoughitishardwork.2)Henodded________thoughhekneweverything

aboutit.evenasmercyn.ifsomeoneshowsmercytheychoosetoforgiveortobekindtosomeonewhotheyhavethepowertohurtorpunish

仁慈；宽恕；恩惠egHe

showednomercyto

hisenemies.

他对敌人毫不仁慈。【归纳】mercy短语atthemercyof任……处置;对……无能为力;任由……摆布begformercy

恳请宽恕

havemercyon/uponsb.

对某人表示怜悯

showmercytosb.

对某人表示怜悯

withoutmercy

残忍地，毫不留情地

merciful

adj.仁慈的；宽大的bemercifulto/towardssb对某人仁慈【语境应用】用适当的介词填空。1)Theyshowedmercy________theirenemies.2)Theshipwas________themercyofthestorm.3)Shegotonherkneesandbegged________mercy.onatfor2.Theseaishometolife,nothumanbeings’possessions.海洋是生命的家园，而不是人类的私产。possessionn.somethingthatyouownorhavewithyouataparticulartime个人财产

ifsomethingisinyourpossession,youownit,oryouhaveobtaineditfromsomewhere拥有；控制egHehadsoldallhispossessionsandleftthecountry.Thehousehasbeeninthefamily’spossessionsincethe1500s.beinpossessionof拥有……（主语为人）beinthepossessionof(sb)=beinone’spossession（某物）被（某人）拥有comeintoone’spossession为某人所拥有take/comeintopossessionof占有；拥有possessv.占有，拥有；控制，支配【语境应用】根据汉语意思补全下面句子（每空一词）。1)这伙人被逮住了，人赃俱获。Thegangwascaught________________________

stolen

goods.2)离开宾馆时请记得随身携带好你的私人物品。Pleaseremembertotakeallyour___________________

withyouwhenyouleavethehotel.3)Jack是个好孩子，他有很多好品质。Jackisagoodboyand_____________________

________.inpossessionof

personalpossessions

possessesmanygoodqualities好词积累1.varietiesof各种各样的2.dieout灭绝3.ontheonehand...ontheotherhand一方面…,另一方面……4.asamatteroffact/infact/actually事实上5.takemeasures采取措施6.keepthebalanceof保持……的平衡7.makegreatefforts努力高级句式1.众所周知，海底有各种各样的资源。(as引导的非限制性定语从句)Asweallknow,therearevarietiesofresourcesunderthesea.

2.只有提高人们保护环境的意识,努力防止污染,才能解决这个

问题。(倒装句)Onlybyraisingpeople’sawarenessofprotectingthe

environmentandmakinggreateffortstopreventpollution

cantheproblembesolved.假定你是某校的宣传委员李华，应邀为学校网站英文版写一篇有关海洋生物保护的文章，请根据以下要点写一篇短文。1.海洋受污染的现状;2.保护海洋的重要性。注意:1.词数100左右;2.可适当增加细节，以使文章连贯。TheImportanceofProtectingOurOceans

Asweallknow,therearevarietiesofresourcesunderthesea.However,thepasttenyearshaswitnessedthatsomecreatureshavediedout.Therefore,marinepollutionhasbeengreatlyconcernedbythewholeworld.Ontheonehand,wemustmakepeoplerealizetheimportanceofprotectingtheocean.Asamatteroffact,toprotecttheoceanistoprotecthumanbeings.Ontheotherhand,thegovernmentshouldtakeimmediatemeasurestokeepthebalanceofnature.Innowayshouldweabandonprotectingtheenvironment.Onlybyraisingpeople’sawarenessofprotectingtheenvironmentandmakinggreateffortstopreventpollutioncantheproblembesolved.ⅠⅡⅢⅣⅤⅥA级必备知识基础练Ⅰ.单词拼写1.What’sbeingdonetostopemployersfrom____________(剥削)youngpeople?

2.Theyoungmanwasa________forhavingstolenhisneighbor’scomputers.

3.This________(名录)includesmosttrainingprovidersandcollegesinthecountry.

4.Theplayertoldusthatheadmiredhis__________(对手)somuch.

5.Carl’sstartingcollegeinSeptember.__________(与此同时),he’stravellingaroundEurope.exploitingrresteddirectoryopponentMeanwhileⅡⅢⅣⅤⅥⅠⅡ.单句语法填空1.Itwasreallyamercy________he’dgonesorapidlyattheend.

2.Whenyoufinish,remembertolog________forsecurityreasons.

3.Ihaveinmy_________(possess)aletterwhichmaybeofinteresttoyou.

4.Aswellas________(play)thepiano,Ilovereadingandlisteningtomusic.

5.He’swalkinginthestreet.All____asudden,heheardsomeonecallhisname.

6.Moreoftenthannot,itiseasiertomakeaplanthantocarry_____aplan.thatoff/outpossessionplayingof

outⅡⅢⅣⅤⅥⅠⅢ.单句写作1.这艘船在海上只好任由大风摆布。(mercy)Thisshipis_______________thestrongwindwhileatsea.

2.昨天有其他用户登录过这台计算机。(log)Therewereotherusers__________________tothiscomputeryesterday.

3.我把电脑安装好,这样他们就可以在家办公了。(sothat)Isetupthecomputer_____________________________.

4.除了写故事,我还喜欢读书。(aswellas)________________________,Ilovereadingbooks.

5.我跑回家时在冰上滑了一跤。(as)Islippedontheice______________.

at

the

mercy

ofwho

logged

in/onso

that

they

could

work

from

homeAs

well

as

writing

storiesas

I

ran

homeⅠⅡⅢⅣⅤⅥB级能力素养提升练Ⅳ.阅读理解(2023湖南名校联合体高二下期末)Shipping

a

Major

Threat

to

the

World’s

Biggest

FishMarinebiologistshavenoticedthatwhalesharknumbershavebeenfallinginrecentyears.Butpeoplejusttakeitforgranted.Anewinternationalstudysuggeststhatcollisions(碰撞)withshippingtrafficcouldbeamajorreasonforthedecrease.ⅠⅡⅢⅣⅤⅥThestudywasledbytheMarineBiologicalAssociationoftheU.K.andtheUniversityofSouthampton,alongwithexpertsinAustraliaandNewZealand.ThestudyappearedinthepublicationProceedings

of

the

National

Academy

of

Sciences.Researchersexaminedsatellitedatatoobserveabout350whalesharks.Theyfoundthattheworld’slargestfishspendmostoftheirtimeinwatersusedbylargeshippingboats.Thestudyshowedthatinformationfromthedevicesusedtotracktheirmovementsoftenendedinbusyshippingpaths.Theresearchersbelievemanysharksareprobablybeinghitandkilledbyboatsbeforesinkingtotheoceanfloor.ⅠⅡⅢⅣⅤⅥMarkErdmanniswiththeUniversityofAucklandinNewZealandandascientistatthenon-profitenvironmentalorganizationConservationInternational.Hewasoneofthewritersofthenewstudy.Erdmannbelievesshippingisamajorthreattowhalesharkpopulations.“...Whatthestudyfoundisthat,indeed,thereisahugeamountofoverlap(重叠)betweenwherewhalesharksaremovingandglobalshippingtraffic.So,thosearerealcollision-riskareas.Mostdeadlystrikesbetweenwhalesharksandboatsarelikelytogounobservedorunreported.Therearecurrentlynolawstoprotectwhalesharksagainstthesekindsofcollisions,”Erdmannsaid.ⅠⅡⅢⅣⅤⅥWhalesharkscangrowupto20meterslong.Theyplayanimportantpartinprovidinghealthyoceanenvironments.【语篇导读】本文是一篇说明文。文章主要介绍了鲨鱼数量一直在减少,最近研究者们终于弄清楚了它们死亡的主要原因。ⅠⅡⅢⅣⅤⅥ1.Whatisthefindingofthenewstudy?A.Whalesharknumbershavebeenfalling.B.Peopletakethedecreaseinthenumberofsharksforgranted.C.Whalingshipsmainlycausedthedecreaseinthenumberofsharks.D.Sharkscouldmostlydiefromcrashesintoships.细节理解题。根据第一段中的“A

new

international

study

suggests

that

collisions

(碰撞)

with

shipping

traffic

could

be

a

major

reason

for

the

decrease.”可知,新研究发现鲨鱼可能大多死于撞船事故。故选D项。√ⅠⅡⅢⅣⅤⅥ2.Whatcontributedtotheresearchers’finding?A.Theplacewheresharks’movementended.B.Sharks’unusualmovementinthepaths.C.Ships’unusualtravellingmanners.D.Theviolentfightbetweensharksandships.细节理解题。根据第四段中的“The

study

showed

that

information

from

the

devices

used

to

track

their

movements

often

ended

in

busy

shipping

paths.”可知,提供信息结束意味着鲨鱼死亡了,鲨鱼死亡的地点促成了研究人员的发现。故选A项。√ⅠⅡⅢⅣⅤⅥ3.WhatcanweinferfromErdmann’sstatement?A.Whysharksdieishardtofindout.B.Thenumberofshipsshouldbereduced.C.Sharksarenotimportantforreporters.D.Thecurrentlawsarenotstrictenough.推理判断题。根据倒数第二段中的“Most

deadly

strikes

between

whale

sharks

and

boats

are

likely

to

go

unobserved

or

unreported.”可推知,鲨鱼和船只碰撞而死不易被发现,也不被报道,这导致了鲨鱼的死因很难找到。故选A项。√ⅠⅡⅢⅣⅤⅥ4.Whatcanweknowfromthelastparagraph?A.Sharksarethebiggestanimals.B.Thenewfindingisveryimportant.C.Sharkswilldieoutsoon.D.Itishardtoprotecthugesharks.推理判断题。根据最后一段中的“Whale

sharks

can

grow

up

to

20

meters

long.They

play

an

important

part

in

providing

healthy

ocean

environments.”可知,鲨鱼在平衡海洋生态环境方面发挥重要作用。发现鲨鱼的死亡原因可以帮助保护鲨鱼,这一新发现是很重要的。故选B项。√ⅠⅡⅢⅣⅤⅥⅤ.七选五Fraser

IslandFraserIsland,offtheeastcoastofAustralia,isanamazingsight.Wavesofclearwatercrashontothewhitesandybeaches.ThepeoplewhofirstlivedtherecalleditK’gari.Itmeansparadise(天堂),andthat’sexactlywhatitis.FraserIslandisaWorldHeritageSite(世界遗产保护区)becauseofitsuniquenaturalsurroundings.

1

IthasmoresandthantheSaharaDesert.Hugesanddunes(沙丘)moveslowlyacrosstheislandwiththewind.Inthevalleysbetweenthesanddunesarefreshwaterlakes.

2

ⅠⅡⅢⅣⅤⅥTheislandhaseverything—over120kmofcleanbeaches,rainforests,andrarebirdsandanimals.

3

Youneedthistypeofvehiclebecauseyouhavetodrivethroughsand.

TherearenoroadsonFraserIsland.

4

Evenairplaneslandonthesand.It’sdescribedasoneofthemostbeautifuldrivesinthe