2024-2025学年人教版初中英语九年级（上）教案 UNIT 6 Section B（3a-Self Check） 第5课时

UNIT6Whenwasitinvented?SectionB(3a—SelfCheck)第5课时设计说明本课时学习与生活中的发明相关的写作。教学时先从复习重点单词和短语入手，导入新课，然后讨论生活中遇到困难的事怎样解决，怎样推销新产品等，为写作做好铺垫，帮助学生完成写作任务。通过SelfCheck的练习，进一步巩固本单元中的重要句型。教学目标通过本课时的学习，让学生达成以下目标：1.知识目标：(1)单词：nearly(2)短语：decideon,comeupwith(3)句子：①Thisisbecausesometimesafewpeoplemayinventthingswhicharenearlythesame.②It’shardtotellwhocameupwiththeideafirst.2.能力目标：(1)熟练掌握被动语态的用法；(2)学会使用被动语态介绍某项发明。3.情感目标：培养学生热爱科学、勇于探索的精神。重点难点1.重点(1)用英语介绍某一项发明；(2)一般过去时的被动语态。2.难点：写一篇介绍某一项发明的文章。教学准备PPT课件教学过程Step1Lead-inReviewsomeoftheimportantexpressions.1.把……分成……divide…into…2.阻止某人做某事stopsb.fromdoingsth.3.钦佩；仰慕lookupto4.鼓励某人做某事encouragesb.todosth.5.实现某人的梦想achieveone’sdreamDiscussion:Haveyouevercomeacrossanydifficultiesinyourdailylife?Iamnotabletotakenotesquicklyinclass.It’sveryhardformetogetupearly.I’mworriedaboutmyeverydayhomework.Canweinventsomethingnewtosolvethosedifficulties?Step2WritingWorkon3a.Thinkofsomethingthatyoudonotliketodo.Thenthinkofaninventionthatcouldhelpyou.Makenotes.Problem:quicklytakingnotesinclassNewinvention:aspecialpenWhatitisusedfor:takingnotesformeItcantakenotesautomatically.Problem:gettingupearlyNewinvention:aspecialclockWhatitisusedfor:wakingmeupItcancallmeupwiththevoiceofmyteacher.Problem:doinghomeworkNewinvention:arobotWhatitisusedfor:doinghomeworkwithmeItcanbemyfavoritehomeworkpartner.Workon3b.Imagineyouareabusinessperson.Writeadescriptionofyournewinvention.Trytoselltheinventiontotheclass.ThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfor…Sample:ThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfortakingnotesquickly.Itisveryusefulifyouhavealottowritedown.Thepencomeswithamicrochipthatcanstorealistofcommonwordsthatyouwilluse.Youcanprogramthewordsyouwilluseoftenintothemicrochip’smemory,thenassignashortformtoeachword.Whenyouarewriting,youjustneedtowritetheshortformswiththepen,pressabuttononthepenandalltheshortformswillchangeintotheactualwords.Themicrochipcancontainupto50wordsandyoucanmakechangestothelistofwordswheneveryouneedto.Step3Playagame谁的发明最畅销？将有6位同学扮演“推销商”上台向同学们“推销”自己的发明，台下的每位同学都有一票选择权，得票最多的“推销商”获胜。（注：在“推销”发明时需全程使用英语）Summary我们在推销一件产品的时候，通常会从哪几个方面去描述呢？Whatistheinvention?Whoinventedit?Whenwasitinvented?Whatisitusedfor?Step4SelfCheck1.Completethepassagewiththecorrectformsofthewordsinthebox.inventdoubtmentionwebsiteallofasuddenItisoftendifficulttodecideontheinventorofcertaininventions.Thisisbecausesometimesafewpeoplemay_______thingswhicharenearlythesame.It’shardtotellwhocameupwiththeideafirst.Someinventionscanalsoleadtootherinventions_______.Sosomepeople_______whethertheinventorcameupwiththeideahimselforherself.Theythinkthattheinventorusedsomeoneelse’sideatocreatehisorherinvention.Thatiswhybooksor_______usually_______morethanoneinventorwhengivinginformationaboutinventions.Checktheanswersonebyone.Answers:invent;allofasudden;doubt;websites;mention2.Rewritethesesentencesusingthepassivevoice.(1)Someonestolemywatch._________________________________(2)Theyusedfiveeggstomakethisbigcake._________________________________(3)Whendidtheyinventthepersonalcomputer?_________________________________(4)Theyaskedusnottoruninthehallway._________________________________(5)Someonetookthevideobacktothestore._________________________________Checktheanswers.Answers:(1)Mywatchwasstolen(bysomeone).(2)Fiveeggswereusedtomakethisbigcakebythem.(3)Whenwasthepersonalcomputerinvented?(4)Wewereaskednottoruninthehallway(bythem).(5)Thevideowastakenbacktothestore(bysomeone).3.Findoutinformationaboutaninventionyouwouldliketoknowmoreaboutandwritesentencesbelow.Invention:_________________________When:_________________________Who:_________________________Purpose:_________________________Step5HomeworkMary在某英语学习网站就“TheMostUsefulInvention”这一话题发帖，征集网友的看法。假如你叫李华，你认为最有用的发明是因特网，请你根据Mary的帖子给她回帖。TheMostUsefulInventionMary—Wednesday,March11,2020IamwritingapaperaboutinventionsformyEnglishclass,andIneedsomeideas.Whatdoyouthinkisthemostusefulinvention?Thanksforyourideas.要求：1.简要阐述因特网的用途(至少三个)；2.词数90左右(回帖的部分内容已给出，不计入总词数)。RERE:TheMostUsefulInventionLiHua—Monday,March30,2020IthinkthemostusefulinventionistheInternet.当堂达标阅读短文，从方框中选择恰当的词并用其适当形式填空，使短文完整、通顺。translateCanadapleasuresuddenmentionsomebodyDearMarcus,HowareyouintheUK?Inyourlaste-mailyou(1)__________Pam.Youwanttoknowsomethingaboutthisgirl,yes?OfcourseIknowalotabouther.Pamisa(2)________girl.She’ssmart.Herhobbyiswriting.Fouryearsagoshewroteabook.In2015,itcameout.Itwaspopularwithmanypeople.Anditwas(3)_________intomanydifferentlanguages.Pamhasbecomeasuccessfuland