Unit20MainlyRevision一、教学目标与要求本单元的复习重点是第15至19单元出现的有关语法项目和日常交际用语。通过复习，使学生进一步巩固这些语言知识，增强和提高运用这些语言知识表达的能力。语言运用得体，语法正确，表达流畅。经阅读本单元课文，使学生了解到我国古代劳动人民的智慧及纸的发明对世界的影响。并能用自己组织的语言简述中国两千多年的造纸史。二、教学重点与难点1．重点词汇development；press；form；include；describe；comeout；throwaway；atthesametime2．重要句型1）InthebeginningtheyusedtocarveChinesecharactersonstonestorecordimportantdatesinhistory．2）Ittookalongtimetocarveapageforabook．3）Itisbelievedthatbeforewritingwasdeveloped，peopleinChinausedtokeeprecordsbyputtinganumberofstonestogether．3．语法复习第15至19单元学习过的语法项目。4．日常交际用语复习第15至19单元出现过的日常交际用语项目。三、课型（一）对话课用心爱心专心Ⅰ．教具录音机，投影仪，仿对话中插图内容，准备几件道具，如：石板、木刻板等。Ⅱ．课堂教学设计1．教师通过以下步骤导入本课：向学生提出下列问题：1）DoyouknowthefourgreatinventionsofoldChina？（com-pass；printing；gunpowderandpaper-making）2）Doyouthinkthattheyareimportant？Why？Pleasegiveexamplestoshowthattheyareimportant．组织学生讨论这个话题。同学们可以说出自己的各种想法。例如：Withoutcompass，menwillnotbeabletosailatsea．Theywillcertainlygetlost．Withoutprinting，onecannotreadanythingprintedinbooks，newspapersormaga－zines．Whataterribleworlditmustbe！Withoutpaper－making，howcanyouhaveyourbooks，dictionariesandsoon？2．准备放对话录音。借助投影片打出以下听前提问：Whatdidpeopledotorecordinfor－mationbeforeprintingwasinvented？放录音一至两遍，请学生回答上述问题，教师予以必要订正。Key：PeoplehadtocarveChinesecharactersonstonestorecordinformation．Forexam-ple，importantdaysinhistory．3．再次放对话录音，学生跟读。将学生分为两人一组练习对话。经数分钟练习后，请同学将对话中有关印刷术的发展步骤列出。4．要求学生将该课对话改写为一篇短文，描写印刷术在中国的发展。教师可给予必要的提示。用心爱心专心TrytousetheinformationfromthedialoguetodescribethedevelopmentofprintinginChina．提示语：1）useotherwaystorecordinformation；2）carveChinesecharactersonstones；3）developedawayofprinting，usingrocks；4）carvethecharactersonapieceofpaper；5）brushinkandpressapieceofpaper教师给出首句：Peoplehadtouseotherwaystorecordinformationbeforeprintingwasinvented．Atfirst...学生根据提示和教师给出的首句编写短文。Model：Peoplehadtouseotherwaystorecordinformationbeforeprintingwasinvented．AtfirsttheyusedtocarveChinesecharactersonstonestorecordimportantdaysinhistory．Laterpeopledevelopedawayofprinting，usingrocks．Aftertheycarvedthecharactersonrocks，theyputapieceofwetpaperontopofthecharactersandbeatitlightly．Thentheybrushedinkonthepaper．Andthenextdevelopmentwastocarvethecharactersonapieceofwood．Theycarvedawholepageofcharactersback－to－frontinthewood．Thentheybrushedinkontothecharacters．Thentheypressedapieceofpaperontop，inthiswaytheycouldprintawholepageofabook．当堂要求学生完成。如时间允许，可请几位同学当堂借助教师准备的教具表演印刷术在中国的发展过程。5．布置作业1）预习第78课；2）完成练习册中安排的练习。（二）阅读理解课用心爱心专心Ⅰ．教具录音机，投影仪。Ⅱ．课堂教学设计1．检查生词及短语。2．教师通过以下提问导入正课：Wealreadyknowthatpaper－makingwasfirstdevelopedinChina．Doyouknowwhofirstinventedpaper－making？Andwhenwasthat？Inthispas－sage，we’lllearnsomethingaboutpaper．Whatdoyouexpecttolear...
