高中英语《Unit4 Astronomy the science of the stars》教案（7）新人教版必修3-新人教版高一必修3英语教案VIP免费

TheseventhperiodWritingTeachinggoals教学目标Abilitygoals能力目标EnableSstoknowhowtowriteashortarticleexplainingoneoftheproblemsTeachingways教学方式【单元写作呈现】Writeashortarticleexplainingoneoftheproblemsthatyoumighthaveonthemoon.Setoutwhatyoushoulddotoovercomethisdifficultyandhaveahappyvisit.【写作分析】本单元要求写一篇说明文，为探访月球过程中可能遇到的某个问题提出解决办法。体裁属于说明文写作（Expositorywriting：solvingaproblem）。本单元的课文和讨论部分已经提到类似的问题，例如月球表面的重力会造成行走困难等等。写作部分在此基础上进一步展开话题，要求学生首先解释说明人们在月球上可能会遇到的某种困难，然后阐述相应的解决办法。写作过程中应注意把握说明文的结构，选择恰当的说明方法，并体现说明文语言的特点。【审题要素】写作时应注意以下几点：1.确定文体：这是一篇解决问题的说明文，写作重点在于说明如何解决问题（How）。2.主体时态：文章应以一般现在时为主。3.内容要点：①提出问题；②列举解决问题的途径；③给出简要评论、总结或预测。4.注意说明文内容的科学性、结构的条理性、语言的准确性。【思路引导】本题属于典型的problem-solution（解决问题）型写作，此类文章写作的基本提纲模式是：第一部分：开篇。提出问题(problem)，明确需要解决的问题是什么，即对现状、形势、困难等进行描述，并说明解决问题的紧迫性和必要性。第二部分：主体。分析问题和解决问题，即提出解决问题的办法(solution)，可使用列举、阐释等说明方法。第三部分：总结。对提出的解决方法进行简要评价(evaluation)，列举其优点，或者说明自己的喜好、选择，也可对该问题的前景做出进一步预测。【语言积累】1.Problems:...isreallyaproblem.Oneofthedifficultiesis....Itisdifficult/hardto...Itisofgreatimportanceforusto...Ithasbecomethebiggestconcernof...Unlesswetakeeffectivemeasures,itislikelythat...2.Solutions:Wehavefiguredoutmanywaysto...Onlyinthiswaycanwe...Tosolvetheabove-mentionedproblem,wemust...Firstly...Secondly...Finally...Theremightbetwosolutions.Thefirstoneisto...Wecansolvetheproblembydoing...3.Conclusion:Inaword/Tosumup...Bydoing...youwill...Withconcertedeffortswewillpullthroughthedifficulties.Withthehelpof...wecanmanagetoovercomethesedifficulties.Wemustfindoutnewwaystocopewiththeproblemsthatwouldarise.【参考范文】Ifyouarereallyplanningatriptothemoon,you’dbetterpacksomethingtokeepyouwarm,andalsosomethingtokeepyoucool.Becausethemoonhasnoatmospheretoblocksomeofthesun’sraysortohelptrapheatatnight,itstemperaturevariesgreatlybetweendayandnight.Thatwillbeagreatchallengetothehumansystem.Todealwiththisproblem,scientistshaveinventedspacesuitswithinternalheatersandcoolingsystems.Withthistechnology,scientistscancreateasurfacezonewiththerelativelyconstanttemperature.Youwillfindthatveryhelpfulonyourtriptothemoon.HomeworkWriteashortarticleexplainingoneoftheproblemsthatyoumighthaveonthemoon.Setoutwhatyoushoulddotoovercomethisdifficultyandhaveahappyvisit.