高二-人教版-英語選擇性必修四-第三單元《Lesson 5 Reading and writing》課件

高二—人教版—英語選擇性必修四—第三單元

Unit3SeaexplorationLesson5ReadingandwritingRevisionInthelastperiod,wehave:1.learntaboutwhalesandotherseaanimals;2.raisedtheawarenessofmarineecosystemconservation.Attheendofthislesson,youwillbeableto:1.understandthebasicstructureofanargumentativeessay;2.distinguishargumentsandevidenceinthetext;3.masterthelanguagethatexpressesagreementanddisagreement;4.writeanargumentativeessay.AimsofthislessonLead-in:Doyouthinktheseashouldbeexplored?Astudent’sanswer:Ithinkseaexplorationisnecessary.Notonlycanwegainmoreresourcesunderthesea,butalsoitisagoodwaytoimproveourunderstandingoflifeontheEarth.Maintask:Expressyouropinionsonwhethertheseashouldbeexplored.ReadforgenreSkimthetwotextsonP32inthetextbookandanswer:Whatisthetexttypeofthetwotexts?Texttype:argumentativeessay(議論文)Theargumentativeessayisagenreofwritingwiththefeatureofpersuadingreadersthatsomethingistrue.Italwaysbeginswithanopinionaboutanongoingcontroversyordiscussion,andthengivesreasonstosupportthatopinion.ReadPara.1ofeachtextandfindoutthethesisstatement(中心論點)ofeachtext.ReadforstructureGroupwork:Readtherestofthetextsanddrawastructuretreeforeachtext.Text1Text2+argument1:

Seaexplorationisimportantforourfuture.argument2

argument3Pairwork:Readthetwotextsagainandfindouttheargumentsandevidence.ReadforargumentsandevidenceText1&Text2arguments

evidenceText1Para.2argumentevidence1evidence2Text1arguments

evidence1Explorationcausespollution.·DeepwaterHorizonoilspill·Plasticpollution2Miningforresourcesisdamaging.·IthurtstheArctic.·Burningfossilfuelsaddstoclimatechange.3Overfishingisanissue.·Whalesanddolphinsarehunted.·Banned,butsomecountriesstilldoingit.Text2arguments

evidence1Seaexplorationisimportantforourfuture.·Scientificresearchshipscanhelpaddressimportantissueslikeclimatechange.2Understandingmoreabouttheseawillalsohelpusmanageitsresourcesbetter.·Newmedicines,foodresourcesandenergy·Predicteventssuchasearthquakes3Weneednewresourcesforfuturedevelopment.·Vastamountsofresourcesmaybeundertheseaandice.Lookatthetwochartsbelowanddecidewhichonesupportswhichtext.(TBP33Ex.2)Text2Text1SummaryofstructureanalysisAcommonmethodforwritinganargumentativeessayisthefive-paragraphapproach.Bothtextsfollowthebasicpatternofathree-pointessay,whichis:Para.1:thesisstatementPara.2:argument1+evidencePara.3:argument2+evidencePara.4:argument3+evidencePara.5:conclusion/restatementReadthetwotextsagainandfindoutthefollowingexpressions:Expressionsthatprovethenegativeside:...causemanyproblems...isverydamaging...negativecycle...isanotherproblem...withoutmercyExpressionsthatprovethepositiveside:...helpaddressimportantissuesMoreresearchisnecessary....helpmanageitsresourcesbetter...helpusdiscovernewmedicines...helpuspredicteventsReadforlanguageGroupwork:brainstormmoreexpressions:Expressionsthatshowagreement:agreethat...approveoftheideathat...Supportersthinkthat......arefortheideathat...supportsth....Expressionsthatshowdisagreement:disagreethat...dispproveoftheideathat...Opponentsthinkthat......areagainsttheideathat...opposesth./beopposedtosth./objecttosth....1.有些人同意海洋探索，因為這能幫助我們解決如氣候變化

的問題。Somepeopleagreewithseaexploration,becauseitcanhelp

usaddressissuessuchasclimatechange.2.有些人反對海洋探索。他們覺得這會造成很多問題。

Somepeopleareopposedtoseaexploration,whichtheythinkwillcausemanyproblems.TranslationpracticeGroupdiscussion:Whatisyouropinionaboutseaexploration?Doyouagreewithoneargumentmorethantheother?Arethereanyotheraspectsofseaexplorationnotmentionedthatyouthinkareimportant?CriticalthinkingAstudent’sanswer:

Whatisyouropinionaboutseaexploration?Doyouagreewithoneargumentmorethantheother?Ithinkseaexplorationisawonderfulidea,becauseeveniftherearenoimmediaterewardsforit,toexploreandfindoutmoreaboutourworldisalwaysagoodthing.

Astudent’sanswer:

Arethereanyotheraspectsofseaexplorationnotmentionedthatyouthinkareimportant?Weneedtoexploretheoceansothatwecanbetterunderstandissuessuchasacidification(酸化)whichleadstoseawatertobecomemoreacidic,andhowtofighttheseproblems.Studyingtheoceancausesthecreationofnewtechnologiesthatcanhelpusinotherareas.

Guidedwritingtask--expressyouropinions

假如你是李華，最近你們班就“人類是否應(yīng)該進行海洋探索”進行了討論，請根據(jù)討論結(jié)果寫一篇短文。

贊成的理由反對的理由你的看法1.獲取更多的海底

資源；2.提高對地球上生命

的理解。1.造成海洋污染，導(dǎo)致海

洋生物死亡；2.破壞生態(tài)系統(tǒng)。......注意：開頭已給出，不計入總詞數(shù)Recently,ourclasshashadadiscussionabout...TaskAnalysis1.文體與目的：2.人稱：

3.時態(tài)4.寫作要點StructurePara.1說明討論的話題，反映討論結(jié)果Para.2說明正方和反方的觀點及理由Para.3表明自己的觀點議論文，反映討論結(jié)果第三人稱一般現(xiàn)在時為主LanguageforwritingExpressionsthatprovethenegativeside:...causemanyproblems...isverydamaging...negativecycle...isanotherproblem...withoutmercyExpressionsthatprovethepositiveside:...helpaddressimportantissuesMoreresearchisnecessary....helpmanageitsresourcesbetter...helpusdiscovernewmedicines...helpuspredicteventsExpressionsthatshowagreement:agreethat...approveoftheideathat...Supportersthinkthat......arefortheideathat...supportsth....Expressionsthatshowdisagreement:disagreethat...dispproveoftheideathat...Opponentsthinkthat......areagainsttheideathat...opposesth./beopposedtosth./objecttosth....ChecklistIntoday’sclass,wehave:1.exploredtwoargumentativeessaysandunderstoodthebasicstructure;2.distinguishedargumentsandevidenceinthetext;3.learnedaboutthelanguagethatexpressesagreementanddisagreement;4.analyzedthewritingtaskandgotreadyforwriting.SummaryPleasefinishthewritingtask.HomeworkThankyouforlistening!高二—人教版—英語選擇性必修四—第三單元

Unit3SeaexplorationLesson5Readingandwriting答疑Pleasefinishthewritingtask.Astudent’swriting:合并為一段內(nèi)容應(yīng)改為反對海洋探索的理由。understandingtoAstudent’swriting:creaturesReferencedversion:

Recently,ourclasshashadadiscu