Unit6第6课时(SectionB3aSelfCheck)（教学课件）九年级英语全一册（人教版）

3a-SelfCheck老师：XXX班级：XXXUnit6Whenwasitinvented?ContentsReview1Pre-writing2While-writing3Post-writing4Summary5Homework6Languagegoals语言能力学习能力思维品质文化意识培养学生热爱科学、勇于探索的精神。1.掌握常用词汇及句型:

nearly,decideon,comeupwith等;2.用英语介绍某一项发明。通过了解世界上一些对人类有着重大意义的发明的相关信息，开阔学生的眼界，培养学生的创造精神。1.熟练掌握被动语态用法；2.学会使用被动语态介绍某项发明。1234

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ReviewWhatinventionshavewelearned?ReviewHowtointroducethem?When

wasitinvented?Whowasitinventedby?Itwasinventedin/by…Whatinventionshavewelearned?ReviewHowtointroducethem?What

isit/aretheyusedfor?Whyaretheyinventedby?Theyareusedfor…Whatinventionshavewelearned?ReviewHowtointroducethem?Who

wasitinventedby?Howwasitinvented?Itwasinventedby...Oneday,...What

aretheinfluences?Howtodescribeaninvention?Whowasitinvented?Howwasitinvented?Whenandwherewasitinventedby?Whatisitusedfor?

Whataretheinfluencesofit?Whatisitmadeof?Howdoesitwork?......

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Pre-writingbylisteningmusic.bydoingexercises.Let’stalk.Someinterestinginventions.Doyouthinktheyareuseful?Whathaveyouinvented?self-closingdoorbylisteningmusic.bydoingexercises.Let’stalk.Thinkofsomethingthatyoudonotliketodo.Thenthinkofaninventionthatcouldhelpyou.Makenotes.3a·Problem:__________________________________________·Newinvention:___________________________________·Whatitisusedfor:________________________________aspecialpenquicklytakingnotesinclasstakingnotesinclassCouldyoutellmemoreaboutit?bylisteningmusic.bydoingexercises.Let’stalk.Thinkofsomethingthatyoudonotliketodo.Thenthinkofaninventionthatcouldhelpyou.Makenotes.3aWhoandwhywasitinvented?Whatisitusedfor?Howdoesitwork?Whatdoyouthinkoftheinvention?本单元的话题是“Invention(发明)”。写作内容通常要求根据图表或文字提示介绍发明物的相关情况（历史、用途、特点等），或者针对生活中的实际情况，提出自己的发明建议。写作时，要求学生能够运用本单元的语言知识，尤其是一般过去时的被动语态来组织语言。话题分析Analysisbylisteningmusic.bydoingexercises.Analysis定人称定时态定体裁说明文

一般过去时

第三人称

一般现在时被动语态Howtointroduceaninvention?开篇点题详尽描述表达观点Howto

introduceaninvention?BeginningEndingBodyWhatShowopinionWhat,HowAnalysisHowtointroduceaninvention?开篇点题详尽描述表达观点Howto

introduceaninvention?AnalysisThisis......wasinventedby/in...Itismadeof…/Itlookslike…Itcannotonly…butalso…Itwasusedto/for…WithoutdoubtIlike…because…

03While-writingbylisteningmusic.bydoingexercises.Imagineyouareabusinessperson.Writeadescriptionofyournewinvention.Trytoselltheinventiontotheclass.3aWhile-writingThis

specialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfor…BeginningBodyEndingI’dliketointroduce…/Thisis…Don’tyou…?Ifso,please…Itwasinvented…Becauseit…Itisusedfor…First…then…ShowThisspecialpenwasinventedbyLiuJie.Heinventitbecausehewanttotakenotesquicklyinclass.Ithasthreecolorsandisusedfortakingnotesquickly.Itisveryusefulifyouhavealottowritedown.Thepencanstorealistofcommonwordsthatyouwilluse.Whenyouarewriting,youjustneedtowritetheshortformswiththepen,pressabuttononthepentherelatedwordswillappear.Besides,itcanalsoturnourvoiceintoactualwords.WithoutdoubtIlikethespecialpenbecauseIcantakenotesquicklyinclassnow.Don’tyouthinkit’scool?SamplewritingBeginningEndingBody实战演练发明改变世界，不少中学生都梦想成为发明家。某英语报社正组织题为“Myinvention:________”的征文活动，请你根据下面的要点提示，写一篇80词左右的英语短文参赛。要点：1.你梦想的发明是什么?

2.这项发明能帮你或他人解决什么问题?

3.你为什么想发明这个东西?要求：1.文中不得出现自己的真实姓名。

2.开头已为你写出，不计入总词数。While-writingWhile-writingIhopetoinventakindofsupershoes.Manyofusmayhavetothrowawayourshoeswhentheyaretoosmallforourfeet.Thisisagreatwaste.Andlostshoesarealsobadfortheenvironment.IfIcouldinventakindofsupershoes,therewouldbenosuchwaste.Thiskindofshoesismadeofaspecialmaterial,whichcangrowwithyourfeetandalwaysfityourfeet.Youdon’thavetoworryaboutyourshoesbeingtoosmallortootight.Inaddition,iftheshoesaredirty,theywillstarttheautomaticcleaningfunctionbetween12:00a.m.and3:00a.m.,anditwillautomaticallydry.Soyourshoesalwayslookclean.Ifyouwalktoomuch,therewillbeamassagefunctionatthebottomoftheshoestohelpyourelaxyourfeet.Theseshoescannotonlyhelpussavesometimeforcleaningandmassage,butalsoareenvironmentallyfriendly.Itisalsogoodforustoprotecttheenvironment.Themostimportantthingisthattheshoesarecheap.Myinvention:SuperShoesBeginningEndingBody①题材：本文是一篇材料作文，写自己的一项发明；②时态：时态为“一般现在时”；③提示：根据所给提示完成写作，不能遗漏信息，包括想要发明的东西、能解决的问题以及发明的原因等。[写作步骤]第一步，介绍想要发明的是什么；第二步，具体介绍想要发明的原因；第三步，介绍发明物能解决的问题。第四步，总结发明物的优点。[亮点词汇]①throwaway扔掉②bebadfor对…有害③notonly…butalso不但…而且…[高分句型]①Ifyouwalktoomuch,therewillbeamassagefunctionatthebottomoftheshoestohelpyourelaxyourfeet.（if引导的条件状语从句）②Thiskindofshoesismadeofaspecialmaterial,whichcangrowwithyourfeetandalwaysfityourfeet.（which引导的非限制性定语从句）While-writing详解

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Post-writing0102030405Peer-editingGoodStructureCorrectgrammar/spellingGoodsentencesLinkingwordsBeautifulwritingExchangeyourarticles,helpeachothercorrectthem.Post-writingPlayagame 4位同学扮演“推销商”上讲台向同学们“推销”自己的发明，台下的每位同学都举手投票，得票最多的“推销商”获胜。（注意：在“推销”发明时请全程使用英语。）Post-writing谁的发明最畅销？Fourstudentsactas"salesman"ontheplatformto"sell"theirinvention.Theaudienceofeachstudentraisetheirhandstovote,andthe"salesperson"withthemostvoteswillwin.Theinventionthatcanbeacceptedisusefulandmeaningful.inventdoubtmentionwebsiteallofasuddenItisoftendifficulttodecideontheinventorofcertaininventions.Thisisbecausesometimesafewpeoplemay_________thingswhicharenearlythesame.It’shardtotellwhocameupwiththeideafirst.Someinventionscanalsoleadtootherinventions________________.Sosomepeople__________whethertheinventorcameupwiththeideahimselforherself.Theythinkthattheinventorusedsomeoneelse’sideatocreatehisorherinvention.Thatiswhybooksor___________usually_______________morethanoneinventorwhengivinginformationaboutinventions.SelfCheckinventallofasuddendoubtwebsitesmention提出；想出SelfCheckCompletethepassagewiththecorrectformsofthewordsinthebox.11.Someonestolemywatch.

Mywatchwasstolen(bysomeone)

2.Theyusedfiveeggstomakethisbigcake.Fiveeggswereused(bythem)tomakethisbigcake

3.Whendidtheyinventthepersonalcomputer?Whenwasthepersonalcomputerinvented?

4.Theyaskedusnottoruninthehallway.Wewereaskednottoruninthehallway(bythem)