Unit 6 Section B (3a-Self Check) 课件-人教版九年级英语全册

SectionB3a-selfcheckUnit6Whenwasitinvented?LearningobjectsBy

the

end

of

the

class,youwillbeableto…1.Learnhowto

write

the

expository

writing

andconsolidatetheusageofpassivevoice.2.Knowmoreaboutgreatinventionsandarousetheinterestininventing.Warmingup

InventionsareeverywhereinourlifeAsyoupourinyourhotdrink,thecolorchanges.ColorchangingcupSmartandcreativeinventionsYoucanneverchopyourfingersoffanymore.SmartandcreativeinventionsIt’sthensafeforyoungchildrentoeatthem.switchplug(断路插头)2012年，富超穎(中国)scootercarriage(滑板婴儿车)2007年，ValentinVodev(奥地利)3aThinkofsomethingthatyoudonotliketodo.Thenthinkofaninventionthatcouldhelpyou.Makenotes.•Problem:__________________________Newinvention:__________________Whatitisusedfor:______________quicklytakingnotesinclassaspecialpenImagineyouareabusinessperson.Writeadescriptionofyournewinvention.Trytoselltheinventiontotheclass.3bThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfor…ThisspecialpenwasinventedbyLiuJie.Ithasthreecolorsandisusedfortakingnotesquickly.Itisveryusefulifyouhavealottowritedown.Thepencomeswithamicrochipthatcanstorealistofcommonwordsthatyouwilluse.Youcanprogramthewordsyouwilluseoftenintothemicrochip’smemory,andthenassignashortformtoeachword.Whenyouarewriting,youjustneedtowritetheshortformswiththepen,pressabuttononthepenandalltheshortformswillchangeintotheactualwords.Themicrochipcancontainupto50wordsandyoucanmakechangestothelistofwordswheneveryouneedto.

计算机在我们的生活、工作中的作用越来越大，你知道计算机的起源与发展吗？请结合计算机的发明时间（1946）年、外形、用途等方面，谈一下它的发展变化，并说明你对未来计算机的畅想。要求：1.意思连贯，语句通顺；词数不少于80。

Computer_______________________________________________________________________________________________________________________________________小试牛角2这是一篇事物介绍类的说明文，根据题目提示可考虑采用下面的模板。计算机引出话题介绍发明畅想未来...importantinourdailylife.时间:Thecomputerwasinventedin...外形：...washuge.用途:sendsomemessages...open...Ithinkcomputersaregoingto...Computer

Computersarebecomingmoreandmoreimportantinourdailylife.Doyouknowwhenthecomputerwasinvented?Thecomputerwasinventedin1946.Atthattime,itwashuge.Withthedevelopmentofscienceandtechnology,thecomputerhasgrownsmaller.Nowtherearemanykindsofcomputers,suchaspersonalcomputersandlaptops.Thecomputerisaveryusefultoolinourlife.【参考范文】Forexample,itcansendsomemessagestoforeignfriendsbye-mail.What’smore,itcanshareinformationwithothersthroughtheWorldWideWeb.Wecanalsolistentomusicorplaythegameoncomputers.Itmakesusrelax.It’shardtoimaginewhatourlifewouldbelikewithoutcomputers.Ithinkcomputerswillbemoreconvenientandtheyaregoingtochangeourlifecompletelyinthenearfuture.Let’swrite请你根据下表中的信息向大家简单介绍几项发明。InventionWheelTelephoneLightbulbAppearingtimeAfewthousandyearsagoIn1876In1879InventorUnknownAlexanderBellThomasEdisonMainmaterialWoodPlasticandmetalGlassandmetalMainuseMakingtravelingfasterForcommunicatingoverdistanceGivinglight谋篇布局综述伟大的发明的共性具体介绍其中两项发明总结它们对人们生活的影响Besidestheabove,thereare…Thanksto…,oursliveshavebeengreatlyimproved.Ithinkthefirstgreatinventionis…itwasinvented…agoanditwasmadeof…Ithinkit’sreallysucha…Ithasnotonly…butalso…Thenextimportantinventionis…Itwasinventedby…itwasmadeof…Itisusedto…Therehavebeenmanygreatinventionsthathavechanged…积累成句dailylives日常生活

bemadeof/from由……制成byaccident偶然；意外地beusedto/for被用来……atthattime在那时

withoutdoubt毫无疑问；的确

notonly…butalso…不但……而且……thanksto由于；多亏开头句：Amongallthemoderninventions,Ithink…isthemostimportantone.Ithink…issuchagreatinvention.Inmyopinion,…isoneofthegreatestinventions.中间句：Itwasinvented…ago.Itwasmadeof/from…Itwasusedto/for…Thisinventioncannotonly…butalso…Thisinventionmadeit…forsb.todosth.结尾句：Thanksto…,ourliveshavebeengreatlyimproved.WithoutdoubtIlike…because……play(s)animportantpartinourdailylives.经典名句：Laborcreatestheworld.劳动创造了世界。Oneofthegreatesthumanqualitiesisitscreativity.人类最伟大的品质之一便是其创造性。Therehavebeenmanygreatinventionsthathavechangedthewaywelive.Ithinkthefirstgreatinventionisthewheel.Itwasinventedafewthousandyearsagoanditwasmadeofwoodatthattime.Ithinkit’sreallysuchagreatinvention.Ithasnotonlymadetravelingfasterbutalsomadeiteasiertocarryheavythings.However,almostnobodywhoinventedit.Thenextimportantinventioniswithoutdoubtthetelephone.ItwasinventedbyanAmericancalledAlexanderBellinl876.Itwasmadeofplasticandmetal.Itisusedtocommunicateoverdistances.Besidestheabove,therearestilllotsofothergreatinventions.Thankstotheseamazinginventionsandthegreatinventors,ourliveshavebeengreatlyimproved.1Completethepassagewiththecorrectformsofthewordsinthebox.inventdoubtmentionwebsiteallofasuddenItisoftendifficulttodecideontheinventorofcertaininventions.Thisisbecausesometimesafewpeoplemay_______thingswhicharenearlythesame.It’shardtotellwhocameupwiththeideafirst.SomeinventionscanalsoleadtootherinventionsinventSelfCheck想出；提出（主意、计划、回答等）______________.Sosomepeople_________whethertheinventorcameupwiththeideahimselforherself.Theythinkthattheinventorusedsomeoneelse’sideatocreatehisorherinvention.Thatiswhybooksor________usually_________morethanoneinventorwhengivinginformationaboutinventions.allofasuddendoubtwebsitesmention2Rewritethesesentencesusingthepassivevoice.1.Someonestolemywatch.2.Theyusedfiveeggstomakethisbigcake.Fiveeggswereusedtomakethisbigcakebythem.Mywatchwasstolenbysomeone.3.Whendidtheyinventthepersonalcomputer?4.Theyaskedusnottoruninthehallway.5.Someonetookthevideobacktothestore.Whenwasthepersonalcomputerinventedbythem?Wewereaskednottoruninthehallwaybythem.Thevideowastakenbacktothestorebysomeone.3Findoutinformationaboutaninventionyouwouldliketoknowmoreaboutandwritesentencesbelow.Invention:_________________________When:____________________________Who:_______________________________Purpose:____________________________

从古至今,无数的发明走进了我们的生活。例如:电灯泡(lightbulb)、电视(TV)、电脑(computer)、电话(telephone)、自行车(bicycle)、雨伞(umbrella)等,这些发明给我们的生活带来了诸多方便,使我们的生活水平不断地提高。请根据表格提示,以“MyFavoriteInvention—Computer”为题目写一篇短文。发明时间1946用途1.上网查信息2.发邮件3.听音乐、玩游戏、购物等4.广泛应用于银行、学校、公司、医院等地方要求:1.内容充实,语言通顺,意思连贯,表达清楚;2.书写规范,不少于80个词;3.可自由发挥。MyFavoriteInvention—Computer______________________________________________________________________________________________________________________________________________________________________________________________________【写作模板】【思路点拨】

(1)体裁:说明文；

(2)人称:第三人称；

(3)时态:一般过去时和一般现在时。

【参考范文】MyFavoriteInvention—ComputerInthepastfewyears,moreandmoreinve