译林版高中英语必修三Uint4 Reading (I) 教案（名校）

Unit4ScientistswhochangedtheworldWelcometotheunit&Reading(I)♦内容分析：本单元的主题语境是“人与社会”，话题是“科学家、科学发现和科学精神”。本单元的教学旨在帮助学生认识科学发现的巨大推动作用，理解科学家的责任担当和科学精神的价值所在。Welcometotheunit板块以视频形式引入单元主题，简要介绍了两位对社会发展有巨大贡献的科学家；Reading板块以新闻报道的形式重点介绍了2015年诺贝尔生理或医学奖获得者屠呦呦在发现青蒿素的过程中付出的不懈努力，旨在让学生感受科学家身上体现出的可贵品质和精神。本单元卷首的名人名言出自欧文•朗缪尔，意为：“科学家的驱动力主要是好奇心和对真理的渴望。”欧文•朗缪尔是美国化学家、物理学家，因其建立的“表面分子定向说”于1932年获得诺贝尔化学奖。这句话意在说明科学家应保有一颗好奇心，勇于追求真理。♦教学目标：Bytheendofthelesson,thestudentswillbeableto:learnabouttwoscientistsafterwatchingthevideo;gettoknowhowtoreadanewsreport;analyzeandunderstandthelanguageofanewsreport;discussandreflectonfactorscontributingtosuccess;writeanewsreportaboutascientist.♦教学重难点：Analyzeandunderstandthelanguageofanewsreport.Writeanewsreportaboutascientist.♦教学过程：Step1Lead-inQI:Whatdowerefertowhenwetalkabout“science”?boldhypothesis&cautiousverificationobjectivity&authoritybebold&behumbleprecise&poeticuncertainty&(of)certaintyQ2:Whatdowerefertowhenwetalkabout“scientists”？QuotationfromIrvingLangmuir:Thescientistismotivatedprimarilybycuriosityandadesirefortruth.【设计意图：紧扣主题，用学生熟悉的话题作为预设教学目标的情境载体导入，创造生动活泼有趣的课堂氛围，激活学生已有的知识和经验，引入主题。】Step2WelcometotheunitAvideoclip:ScientistswhochangedtheworldWhatelsedoyouknowabouttwoscientistsinthevideo?YuanLongpinghasanasteroidnamedafterhim.In1999,theasteroidprojectteamwhodiscovereditdecidedtohonourthisgreatmanforhisachievementindevelopinghybridrice.Theasteroidiscalled"YuanLongpingstar”.StevenHawkingfulfilledhislifelongdreamofexperiencingzerogravity,eventhoughhewaswheelchair-bound.Hisdreamcametruewhenheflewinaspecialzerogravityairplanein2007.【设计意图：介绍袁隆平和霍金,吸引学生的的兴趣。】Step3Pre-readingWhatdoyouknowabouttheNobelPrize?Picture:MoYanwinningtheNobelLiteraturePrizeStep4FastreadingReadfortheleadofthenewsreport.TuYouyouhasbecomethefirstfemalescientistofthePeople'sRepublicofChinatoreceiveaNobelPrize,awardedforhercontributiontothefightagainstmalaria,oneofthedeadliestdiseasesinhumanhistory.Readforstructure.【设计意图：指导学生通过找主题句快速获取段落主旨，培养学生概括段落大意的能力。】Step5DetailedreadingReadforspecificinformation.ProblemsSolutionsTheextractsfailedtoproduceanypromisingresults.TuYouyoureferredtotheancientbooksoftraditionalChinesemedicineagain,redesignedtheexperimentsandtriedextractingtheqinghaoherbatalowtemperatureinordernottodamageitseffectivepart.Tuandherteamcouldnotproduceenoughextractbecauseresearchresourceswerelimited.TuYouyouandherteammanagedtofindsolutionstotheproblem,e.g.usinghouseholdwatercontainersinsteadofresearchequipment.Tuandherteamdidnothavesufficientsafetydatatostarttrialsonpatients.TuYouvouandherteamvolunteeredtotesttheqinghaoextractonthemselves.【设计意图：帮助学生梳理文章的关键信息。接下来通过完成表格和流程图，引导学生学会自主阅读、归纳信息、提炼要点。】Step6In-depthreadingReadforthetransitionalsentences.Canyoufindthetransitionalsentencesusedinthisnewsreportandanalyzetheirfunctionsonebyone?Figureoutthetransitionalsentencesan