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高二一人教版选择性必修三一英语一第二单元HEALTHY LIFESTYLELesson3Discovering UsefulStructures教学设计执教者曾丹丹广州市第六中学主题语境人与自我语篇类型说明授课时长分钟内容分析25该部分为语法部分,内容是动词不定式作主语,教材所设计的活动infinitives内容均与本单元的主题“健康的生活方式”相关该部分的三个练习体现了从感知语法现象,发现语法形式表达的意义和功能,到完成控制性的书面操练,再到真实语境中正确选用目标语言结构的语法学习过程练习呈现了动词不定式作主语的例子,让学生感知动词不定式的结构,然后让学1生从阅读文本中找到包含动词不定式的句子,讨论动词不定式在句子中的意义和功能由于课文中动词不定式作主语、表语、宾语、定语、状语、形容词补语等多种句子成分,学生在寻找和讨论的过程中既能复习旧知识,也能充分了解新语法点,还能对动词不定式的用法有一个全面的了解练习是一个连词成句的活动,要求2学生把一个个弧立的单词或词组按一定的顺序组合成有意义的句子,再根据语义关系把所有句子组成一个段落学生可根据需要添加额外的句子,使段落主旨明确、语义连贯、前后衔接学生在模仿示例连词成句时,也在思考该句是否表达一定的意义,从而将动词不定式的形式与意义紧密结合起来从词到句、从句到篇的意义建构过程有助于学生深入体会动词不定式作主语的形式和用法练习由谈论健康3生活方式的四组小对话组成,这些小对话展现了动词不定式在真实语言交际中的各种用法该活动要求学生结合语境正确运用所给短语完成对话,一方面是为了帮助学生综合巩固动词不定式的各项功能和用法,另一方面也是复习和巩固所学词块在教材的附录部分页,总结了动词不定式作主语、动词不定式作表语和“疑104问词+不定式”的形式及用法,并提供了有一定代表性的例句供学生学习在本节课中,会有其中的部分例句加入教学中,用以让学生观察句子并归纳动词不定式的特点和用法学情分析广州电视课堂是由广州市教育局为全市中小学生提供的线上教育服务本课面向全市的学生,学生基础不一通过初中阶段以及前面册次中动词不定式作表语、宾语、宾补、定语、状语等用法的学习,学生对动词不定式有一定的认识,但对于动词不定式作主语的概念还不十分清晰,学生运用动词不定式进行表达的能力也有待提高本课旨在帮助学生建构与完善动词不定式作主语的结构化知识,并能够在语境中恰当使用教学目标学生通过本课时的学习,能够.理解动词不定式用作主语的功能和意义;1结合语境正确运用动词不定式进行表达;
2.,使用不定式进一步讨论形成健康生活方式的一些方法3教学重点与难点’弓导学生探究和归纳动词不定式作主语的语法特点L1学生运用动词不定式进行表达
2.教学资源教材、多媒体课件教学流程:步骤教学活动设计意图时长Leading4nActivity1*T leadsthe Ss to recallthe topic—To arouseSd interest,and to1minhealthy lifestyleof thisunit andshows theactivate theirpriorpicture of the habitcycle knowledgaPresentation*Ss studythe sentencesof Exercise1on Topresent howinfinitives are3minPage17of the textbook andanalyse theused as the subjectsto Ss.italicized infinitives*T asksthe followingquestions tolead Sstothink:A ctivity21What arethe functionsof theinfinitives in the sentences“遣⑵Why aresused in the sentencesTopresent thesentence*T showsan exampleof changingthestructures ofinfinitivessentence“To changebad habitsis neverused as the subjectseaspto anotherstructure uItis nevereasyto changebad habits.PracticeActivity3*Ss changethesentencestructures byTo help Ss consolidatew hat1minfollowing Ts examplethey havejust learnedTo helpSsbetter understand2min*Ss lookfor moresentences withinfinitivesused astheinfinitives used asthe subjects inthe textsubjectsand tocompare theon Page
1415.〜difference betweenChineseand Englishwhile using*Ss studythese sentences and thenchangeinfinitivesA ctivity4their sentencestructures*Ss putthe sentencesintoC hineseand thenre-translate them intoEnglish.PresentationTo leadSs topay attentionto3minthe predicateverbs of*T showssome sentenceson Page104of theinfinitives asthesubjectstextbook:1To changebad habitsis nevereasy;2Tohelpothers givesa personsatisfactionActivity53To preventharmful habitslike thesefromdo minatinga teenagedslife isessential*Ss observeand summarize the grammaticalrule:when infinitivesareusedasthesubjectsthepredicate verbsare singularPractice2minTo offerSs chancesto*Ss finishExercise2onPage
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0.5minTo guideSstosu mmarize whatthey havelearned inthislesson.T assignshomework.
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