Unit+3+Sea+Exploration+Reading+and+Thinking教学设计 高中英语人教版（2019）选择性必修第四册

Unit3ReadingandThinking课时内容Learnaboutseaexploration主题语境：人与自然主题群：宇宙探索子主题：海洋探索语篇类型：说明文文本分析：【What】本文是一篇说明文，介绍了中国从古至今的海洋探索历程。文章第一段开宗明义，指出贸易往来和对世界的好奇心驱使着人类探索未知的世界，通过列举马可·波罗、哥伦布等西方航海家，引出中国的海洋探索历史；第二段介绍了古代丝绸之路，展现了早期东西方的交流；第三段讲述了明朝郑和下西洋的壮举，呈现了中国悠久的和平外交传统；第四段介绍了中国的“一带一路”，尤其是“21世纪海上丝绸之路”对经济贸易和文化交流的作用；第五段以南极海洋科考为例，介绍了当代中国在海洋探索领域与他国开展的国际合作；第六段总结全文，展望未来-伴随着科技的进步，中国将继续开拓进取、深化海外合作。【Why】通过该语篇的学习，学生能够结合说明文的结构特点和说明方法，了解中国从古至今的海洋探索历程，辩证看待海洋探索活动对世界文明的影响，思考海洋探索对国家乃至整个世界的意义，体会“一带一路”，尤其是“21世纪海上丝绸之路”的深远意义，理解建设现代化强国、促进世界和平与发展的责任，形成正确的海洋发展观，树立人类命运共同体意识。【How】本文是一篇典型的说明文，以时间为明线，脉络清晰地介绍了中国从古至今的海洋探索历程。从文章结构看，每一个探索历程均包含了具体的航海时间、地点、事件、目的或结果等维度；从语言层面看，作者使用了许多与航海相关的动词短语如reachoutacrossthesea、setsail等，也使用了theaimof、inorderto、leadto等一系列与目的和影响有关的功能表达。文章还以中国和平友好的外交方式为暗线，展现了自古以来中国在贸易、科技、文化交流等领域开展地区合作，推动互利共赢、合作发展的责任与担当。文章细节信息比较多，需要学生将碎片化信息进行整合，建构结构化知识。课时目标学完本课后，学生能够：1．运用阅读技巧，判断说明文的文体特点，理解说明文的结构特征和说明方法。2．结合图表，梳理每个时期的探索的航海抵达区域、主要事件以及航海的目的或结果，深入了解中国从古至今的海洋探索历程。3．通过对比、归纳与分享交流，思考海洋探索对国家乃至整个世界的影响，体会“一带一路”，特别是“21世纪海上丝绸之路”的深远意义，增强民族使命感、培养人类命运共同体意识。重点难点重点1．理解说明文的结构特点和说明方法。2．梳理每个时期的探索的航海抵达区域、主要事件以及航海的目的或结果。难点结合时间线，利用图表整合、归纳文章的碎片化信息。思考海洋探索对国家乃至整个世界的意义，体会“一带一路”，尤其是“21世纪海上丝绸之路”的深远意义。教学准备教师准备1．了解有关海洋探索的重要历史人物、事件及其重要影响和意义。2．熟悉中国当代在海洋探索和国际交流合作领域的重要活动、事件及其影响。3．深度了解说明文的语篇结构特点和文体特征。学生准备1．预习新词汇和课文内容。2．利用网络资源熟悉课文内容涉及的背景知识。精彩课堂StepI学习理解活动一：感知与注意1.Readanddiscuss.AskstudentstoreadthequoteontheOpeningPageanddiscusswhatthequoteisabout.Suggestedanswer:ThequoteisfromPresidentXiJinping.Xiofferedhiscongratulationsinalettertothe2019ChinaMarineEconomnyExpo.Hecalledforeffortstoacceleratemarinesci-techinnovation,improvemarinedevelopmentcapacity,andfosterandstrengthenemergingmarineindustriesofstrategicimportance.Heurgedeffortstopromotemarineconnectivityandcooperationinallareasanddevelopa“bluepartnership"amongallcountries.Healsostressedmarineecologicalconservation,marinepollutionpreventionandtreatment,protectionofmarinebiodiversity,orderlydevelopmentandutilisationofmarineresources,inabidtoleaveacleanandtidymarineenvironmenttofuturegenerations.2.Discussandshare.Askstudentstodiscussthefollowingquestionwiththeirpartners.·Doyouknowanystoriesaboutseavoyages?(Shareyourstorywithapartnerbasedonthegivenchart.)NavigatorNationalityAchievementTimeNavigatorNationalityAchievementTimeZhengHeChinesemadesevenvoyagestotheWesternSeas;hisvoyagesareoneoftheworldnavigationfeatsinhistory1405-1433ChristopherColumbusItaliandiscoveredanewworld1492FerdinandMagellanPortuguesemadethefirstvoyagearoundtheworld1519【设计意图】单元引言出自国家主席习近平致“2019年中国海洋经济博览会”开幕的贺信，引言内容呈现整个单元主题。通过以上两组讨论，学生走进单元主题，形成对海洋探索的基本认知，为理解海洋探索对国家乃至整个世界的意义作铺垫，同时激发学生学习的热情。活动二：获取与梳理1.Makeaprediction.Askstudentstolookatthetitleandthepicture.Andthenhavethemanswerthequestion.·Whatwillbeintroducedinthetext?Suggestedanswer:·Fromthetitle,wecanlearnthatthetextisaboutseaexploration.Andfromthepictureofafamousnavigator,ZhengHe,wecanlearnthatitisaboutChina'shistoryofseaexploration.2.Readforthetexttype.(1)Askstudentstoreadthefollowingsentencesandhaveabriefunderstandingofessaytypes.Therearefourmajortypesofessay:narrative,descriptive,expository,andargumentative.Anarrativeessayisastorywithabeginning,middle,andend.Adescriptiveessaydescriesasubjectandlistsinterestingdetails.Anexpositoryessayisfactual,givinginformationonasubject.Finally,anargumentativeessayaimstoconvincethereader.(2)Askstudentstoskimthetext,decidewhattypeofessayitisandtellthereason.Suggestedanswer:ItisanexpositoryessaybecauseitdescribesChina'sseaexplorationandgivesfactualinformation.3.Readforthemainideaofeachparagraph.Askstudentstoreadthetextagain.Andthenhavethemmatchthemainideawitheachparagraph.Para.1A.Chinaisalsojoiningwithothercountriesonotherimportantprojects.Para.2B.Inancienttimes,traveleasttowestwasontheSilkRoad.Para.3C.The21stCenturyMaritimeSilkRoadhasencouragedcooperationandstrengthenedthebondsbetweenChinaandtherestoftheworld.(Today,theBeltandRoadInitiativeispickingupwhereZhengHeleftoff.)Para.4D.ZhengHe'sseavoyagesbuiltrelationswithothercountries.Para.5E.TravelfromeasttowestbeganlongbeforeColumbus.Para.6F.Chinawillcontinuetoexploretheseaandenhancerelationshipswithothercountries.Suggestedanswers:Para.1-E;Para.2-B;Para.3-D;;Para.4-CPara.5-A;Para.6-F【设计意图】学生根据标题和图片预测文本内容，形成阅读期待；通过略读策略，整体把握文本内容，验证预测和初步认识说明文的语篇特征；通过匹配段落大意，掌握语篇主旨大意，提升对文章的概括能力。活动三：概括与整合1.Readforthestructure.Askstudentstoanswerthequestions.Thenhavethemdrawastructuremapofthetext.·Howisthetextdeveloped?·Whatisintroducedineachexploration?·Howmanypartscanthetextbedividedinto?Whatisthemainideaofeachpart?Suggestedanswers:·Timesequence.·Time,region,eventandresult/purpose.·Thetextcanbedividedintotwoparts.ThefirstpartisParagraph1,whichintroducesthetopic:China'sseaexploration.ThesecondpartisfromParagraph2toParagraph6,whchintroducesfactualinformation,includingtime,region,eventandresult/purposeofeachexploration.Thesecondpartcanalsobedividedinto3parts:China'sseaexplorationinthepast,atpresentandinthefuture.2.Readforfactualinformation.(1)Askstudentstoscanthetextandfillinthetablewiththecorrectnames.(Activity4)Suggestedanswers:theSilkRoad;Africanroyalfamilies;theArctic;Rome;SriLanka;theMingDynasty;DuHuan;ZhengHe;MarcoPolo(2)AskstudentstoreadParagraph1andanswerthequestions.·Whatlitupthestrongpassionforthepeopleofearlycivilisationstoreachoutacrossthesea?·WhatinspiredEuropeanexplorerstosearchforsearoutesfromwesttoeast?·WhyareMarcoPoloandColumbusmentioned?·Whyis"however”usedinthelastsentence?Whatisthefunctionofthelastsentence?Suggestedanswers:·Tradeandcuriosity.·MarcoPolo'stales.·Theyarementionedasexamplestodemonstratethat“tradeandcuriosityhaveoftenformedthefoundationofmankind'sgreatestachievements”.·"However”isusedtointroducesomethingimportantthatcontrastswithwhathasbeensaidpreviously.ThelastsentenceisusedasatransitionalsentencedirectingthediscussionfromoceanexplorationingeneraltoexpeditionsmadebyChina,enteringthemaintopicofthetext.(3)AskstudentstoreadParagraphs2~6andfinishthefollowingtasks.1)Whatisintroducedineachexploration?Pleasefinishthecharttoanswerthequestion.InformationPara.2Para.3Para.4Para.5Para.6TimeRegionEventResult/PurposeSuggestedanswer:Para.2Time:inancienttimesRegion:India;theMiddleEast;Rome;thecoastsoftheIndianOcean;SriLankaEvent:merchantsfromChinaandmanyotherplacesmettonegotiatetradedeals;DuHuan'sRecordofMyTravelsResult/Purpose:negotiatetradedeals;culturalawarenessPara.3Time:intheMingDynastyRegion:theSouthChinaSea;theIndianOcean;themouthoftheRedSea;theeastcoastofAfricaEvent:sevenlargefleetsunderthecommandofZhengHesailedwestonvoyagesoftradeandexploration;Africanroyalfamiliessentgiftssuchasgiraffesasgesturesoffriendshipinreturnforgold,silkandspeciesResult/Purpose:developrelationsPara.4Time:todayRegion:theancientsearoutestravelledbyZhengHe;theSilkRoadareasEvent:ChinahasinvestedbillionsinsystemsandservicesalongtheseroutesResult/Purpose;encouragecooperationandtrade;strengthenthebonds;developthewholeareaforthebenefitoffuturetradeandculturalexchangePara.5Time:inrecentyearsRegion:theArcticEvent:ChinahasjoinedothernationsonseveralexpeditionstoexploretheArcticResult/Purpose:understandclimatechangeanditseffectsPara.6Time:farintothefutureRegion:unknownResult/Purpose:tradeandenhancerelationships2)MarkthesearoutesofChina'sseaexplorationindifferenttimesonthemaps.①MarktheancientsearoutestravelledbyZhengHeintheMingDynasty.②Markthe21stCenturyMaritimeSilkRoadandtheSilkRoadEconomicBelt.Suggestedanswers:（见课件）3.Readandretell.AskstudentstoreadthetextandretellChina'sseaexploration.【设计意图】文本按照时间顺序展开，对每个时期的探索从航海抵达区域、主要事件、航海目的和结果等维度进行说明。教师引导学生借用结构图、表格和地图梳理文本信息，将碎片化的信息结构化，加深对说明文结构特征的认知；同时，学生通过有逻辑、有条理的复述提高语言运用能力和表达能力，并为后续进一步探究主题意义、深度理解文本作铺垫，为在新语境中迁移所学内容、实现创新表达创造条件。StepII应用实践活动四：分析与判断Readforfactsandopinions.(1)Askstudentstoreadthefollowingsentencesandgettoknowthedifferencesandconnectionsbetweenfactsandopinions.FactsandopinionsAfactisanythingthatisdoneorhappens;anythingactuallyexistent;anystatementstrictlytrue;truth;reality.Factsarestatementsthatcanbeproven.Factsmaybetrueorfalse.Anopinioncanbeageneraloranindividualview,belieforimpression.Opinionscanbeargued.Opinionsmaybesupportedwithfacts.Askstudentstodiscussthefollowingquestionswiththeirgroupmembers.Andthenhavethemfinishthechart.QuestionsFactsOpinions①Whichcountriesreachedoutacrosstheseainthepastandwhy?②Whatbenefitsandproblemsdidthosecountriesgetfromdoingthis?③Whateffectsdidreachingoutacrosstheseainthepasthaveontheworld?④WhatdoyouthinkisthesignificanceoftheBeltandRoadInitiative?Suggestedanswers:QuestionsFactsOpinions①Europeanexplorers,China,India,Ceylon,Africanroyalfamilies.Fortrade.②Theygotnewproductsfrommanydifferentcountriesandbecamemoreawareofothercultures.Insomecases,thisledtoinvasionandconquest.③Thelandandsearoutesremainedactivechannelsbetweendifferentculturesforcenturies.Generallyspeaking,theresultwaspositive,asitadvancedthespreadofknowledge,technology,andgoods,andmadetheworldasmallerplace.④TheaimofthisinitiativeistoencouragecooperationandtradeacrossthehistoricSilkRoadareas,andstrengthenthebondsbetweenChinaandtherestoftheworld.ItwillleadtogreaterintegrationwithChinaandothercountries.【设计意图】教师引导学生整合、分析有关海洋探索的信息，并基于事实信息表达自己的观点、培养学生的逻辑思维能力和批判性思维能力，实现深度学习。StepII迁移创新活动五：批判与评价1.Makecomparisonsandvoiceopinions.(1)Makecomparisons.①Askstudentstocomparethechangesofregions,eventsandresults/purposesovertime.Andthenhavethemdiscussthequestionwiththeirgroupmembers:Whatconclusionscanyoudrawfromthem?②AskstudentstocomparethepurposesofChina'sseaexplorationandothercountries'andthinkabouttheirsimilaritiesanddifferences.Suggestedanswers:①Today,tradeandcuriositystillremainmotivationsofseaexploration.Chinaispursuingcooperation,bonds,developmentofthewholeareaandbenefitsformankind.Chinatodayismuchstrongerthaneverbeforeandwearemoreinvolvedininternationalaffairsandshouldergreaterresponsibilityformankind.②Similarities:Promoteculturalexchange,encouragecooperationandtrade,strengthenthebonds,andenhancerelationships.Differences:Thereexistinvasionandconquestinsomeothercountries'seaexploration.ButChinaisnotlikethis.(2)Voiceopinions.①Askstudentstodiscussthedifficultiespeoplemeet(metorwillmeet)ineachperiodofseaexploration.Suggestedanswer:Inthepast:badtransportation,badclimate,simpletools,unexpecteddanger,languagebarriers,cultureconflict,lackingknowledgeofnavigation,...Todayorinthefuture:extremeweatherconditions,severepressureinthedeepsea,thelimitinadvancedtechnology,...②Askstudentstodiscussthefollowingthreequestions.·WhydoyouthinkChinacontinuestoexploretheseadespiteallthedifficulties?·WhatbenefitswillChina'sseaexplorationbringtotheworld?·Asstudents,areyouinfavourofthefurtherseaexploration?Whatcanwedoforseaexploration?Suggestedanswers:·Despiteallthedifficulties,Chinacontinuestoexploretheseaforthebenefitofallhumans.·Helppromotetheeconomicprosperityandeconomiccooperation,strengthenexchangesandmutuallearningbetweendfferentcivilisations,andimproveworldpeaceanddevelopment.【设计意图】教师引导学生对比、分析中外海洋探索在目的上的异同之处，了解中国自古秉承的和平、友好、互助的外交传统，思考中国海洋探索的困难与意义，理解我国发展海洋事业的责任与使命，并由国家推及个人，认知个人与国家战略的紧密关系，增强民族使命感，同时升华文章的主题意义。2.Assignment.(1)AskstudentstosurftheInternettogetmoreinfor