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教学课件
英语八年级上册沪教牛津版Module2ScienceandtechnologyUnit4InventionsPeriod2Period2
Reading(II)学习目标:1理解和运用短语intheearly19thcentury,beableto,acrosstheworld,allow…todo…,keepintouchwith等。2
能利用所给提示(如图片、关键词等)描述一件发明。3
能通过图表理清文章结构,归纳文章大意。4
深入了解伟大发明如何改变人类的生活。RevisionWhatinventionsaredescribedinthefollowingsentences?Wecanuseittocommunicatewithpeopleoverlongdistances.Wecanmakephonecallswithitanytime,anywhere.3Itisperhapsoneofthemostpracticalinventionsinthe20thcentury.Nowpeopleuseitforbothworkandplay.telephone/mobilephonemobilephonecomputerlift4Afteritsinvention,wenolongerneededtousethestairs.airplane/aircraftairconditionertheunderground5Itcoolsorwarmsroomstomakethemmorecomfortableforpeopletostayin.6Passengerswhousethisfortransportationnolongerneedtoworryabouttrafficjams.7TheWrightbrothersinventedthefirstmachine-poweredmodelofit.Whatinventionsaredescribedinthefollowingsentences?InventorTimeofinventionLifeafteritsinventionExamples:ThewheelReadthefirstpartofthearticleandcompletethetable.Don’tknow.Afewthousandyearsago.Travellingbecamefasterandmorecomfortable.carriagestrainscarsWhileyoureadInventorTimeofinventionLifeafteritsinventionPeoplecan____________________________________.
Peoplecan_____________________________________________________________.Thetelephoneoverlongdistancesspeaktoeachothermobilephoneskeepintouchwitheachotheranytime,anywherewithReadthesecondpartofthearticleandcompletethetable.AlexanderGrahamBell.In1876.Readthethirdpartofthearticleandanswerthesequestions.Thelightbulb1Whatdidpeopleusetoseeatnightbeforetheinventionofthelightbulb?Peopleusedoillamps,gaslampsorcandles.2Whathaslifebeenlikeaftertheinventionofthelightbulb?Peoplecandoasmanythingsintheeveningsastheycaninthedaytime.ThewheelThewheelisperhapsthegreatestinventioninhistory.Afteritsinvention,travellingbecamefasterandmorecomfortable.Afewthousandyearsago,peoplestartedtousewheelsoncarriages.Intheearly19thcentury,thefirsttrainsbegantocarrypassengers.Atthestartofthe20thcentury,carsbecamepopular.Withoutthewheel,wewouldnothavetheseinventions.GreatinventionsGreatinventionschangetheworld.Theyhelppeopleliveabetterlife.Thefollowingarethreeofthemostimportantinventionsinhistory.ThetelephoneAlexanderGrahamBellinventedoneofthefirstpracticaltelephonesin1876.Sincethen,peoplehavebeenabletospeaktoeachotheroverlongdistances.Todaymillionsofpeopleacrosstheworldownmobilephones.Theyallowpeopleto
keepintouchwitheachotheranytime,anywhere.ThelightbulbThomasEdisondevelopedthefirstpracticallightbulbin1879.Beforetheinventionofthelightbulb,peoplehadtouseoillamps,gaslampsorcandlestoseeatnight.Withlightbulbs,peoplecandoasmanythingsintheeveningsastheycaninthedaytime.Canyouimaginelivingwithoutthem?D1Readthearticleonpage51andcompletethetablebelow.fasterandmorecomfortableAlexanderGrahamBellspeaktoeachotheroverlongdistancesThomasEdisondoasmanythingsintheeveningsComprehensionHowdidpeopleseeatnightbeforetheinventionofthelightbulb?WhichofthethreethingswasinventedfirstD2Readthearticleagainandanswerthequestionsbelowincompletesentences.Thewheelwasinventedfirst.Theyallowpeopletokeepintouchwitheachotheranytime,anywhere.Theyhadtouseoillamps,gaslampsorcandlestoseeatnight.Whatinventionsdidthewheelmakepossible?HowdomobilephoneshelppeoplekeepintouchwitheachotherItmadetheinventionsofcarriages,trainsandcarspossible.1946,ENIAC,thefirstcomputer1981,IBM,thefirstPCNow,laptops,tabletsThecomputerTalkabouttheinventionofthecomputerusingtheinformationbelow.TalkaboutthecomputerThecomputerisperhapsthegreatestinventionofthe20thcentury.In…,…Afteritsinvention,…Sincethen,…Beforetheinventionof…,…With…,people…Today,…Canyouimaginelifewithoutcomputers?Usefulwords/express
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