高中英语-人教版选修8 Inventors and inventions教学课件设计

unit3UsingLanguage

Reading:

AlexanderGrahamBellTheDevelopmentofPhones

Telephoneshavebecomepartofourlife.Butdoyouknowwhoinventedthetelephone?ABritishinventorcalledAlexanderGrahamBell.

1.Readthepassagequicklyandfindoutthemainideaofit.

2.Trueorfalsestatements1).Alexanderwasinterestedindeafeducationbecauseofhismother.2).AtbeginningBellplannedtoinventatelephone.3).Theoriginaltelegraphcouldonlysendonemessageatatime.4).Bellinventedthefirsttelephonewhenhewasimprovingthetelegraph.5).Bellusedthefirsttelephonetosendmessageassoonasthepatentwasgiven.6).Bellisacuriousman.ScanningReadthepassagequicklyandfindoutthemainideaofit.ScanningItmainlytalksaboutthelifeofAlexanderGrahamBellandhowhemadethegreatinventions.Alexanderwasinterestedindeafeducationbecauseofhismother.AtbeginningBellplannedtoinventatelephone.Theoriginaltelegraphcouldonlysendonemessageatatime.Bellinventedthefirsttelephonewhenhewasimprovingthetelegraph.Bellusedthefirsttelephonetosendmessageassoonasthepatentwasgiven.Bellisacuriousman.TFTTFT

TrueorfalsestatementsItwasnotuntilfivedayslaterthatBellsenthisfirstmessage…Bellneversetouttoinventthetelephoneandwhathewastryingtodesignwasamultipletelegraph.para.1para.2para.3para.4para.5para.6para.7A.BellisacontinuingsearcherB.Bell’slifeinformation,andespeciallyinterestC.Bell’scuriosityD.Howwasthetelephoneinvented?E.Theimportanceofhisinvention--telephoneF.Bell’sfirsttelephonemessageG.Bell’snewdiscoveriesinotherareasofinventionGeneralideaofeachparagraph

Readingfordetailsaboutpara11.Whatishisinterestwhenhewasyoung?Andwhy?Hebecameinterestedinhelpingdeafpeoplecommunicateandineducation.Becausehismotherwasentirelydeaf.2.HowdidBellmakehismotherunderstandwhathesaid?Bypressinghislipsagainsthismother’sforehead.Further-readingaboutpara2Bellbelievedthatifonewantedtomakesomeinventions,oneshouldhave__abouttheworld.A.confidenceB.curiosityC.awillPleasefindoutasentenceinPara.2toreplacethefollowingsentence.Wheneveryoudo,youwillbesuretofindsomethingthatyouhaveneverseenbefore.Everytimeyoudoyouwillbecertaintofindsomethingthatyouhaveneverseenbefore.DothefollowingexercisesaccordingtoPara.2每次当你这样做的时候，你一定会发现你从未见过的东西。Para.3.Howwasthetelephoneinvented?

aim:wanttoimprove…designedamachine…experimentedwith…noticed…suddenlyhadaflashofinspiration:invented…Insearchingtoimprovethetelegraph,Bellinventedthefirsttelephone!Bychance在探求改进电报的过程中，贝儿发明了第一台电话机！Further-reading

CompletetheshortpassageaccordingtoPara.3Bellneversetout

to_____thetelephone.Hewantedtoimprovethe_______telegraphsothatitcouldsend______massagesatatime.Hedesignedamachinethatwould_______differentsoundwaves.Buttheproblemis_______tosolve.Oneday,whilehewasexperimentingwithoneendofastraw_____toadeafman’seardrumandtheotherendtoapieceofsmokedglass.Bell______thatwhenhespokeintotheear,thestrawdrewsoundwavesontheglass.Hethoughtifsoundwavescouldbereproducedinamovingelectrical_______,theycouldbesentalonga____.Sothe____telephonewasborn.123

45678910Further-reading

Completetheshortpassage

accordingtoPara.3

Bellneversetout

to_____thetelephone.Hewantedtoimprovethe_______telegraphsothatitcouldsend______messagesatatime.Hedesignedamachinethatwould_______differentsoundwaves.Buttheproblemis_______tosolve.

Oneday,whilehewasexperimentingwithoneendofastraw_____toadeafman’seardrumandtheotherendtoapieceofsmokedglass.Bell______thatwhenhespokeintotheear,thestrawdrewsoundwavesontheglass.Hethoughtifsoundwavescouldbereproducedinamovingelectrical_______,theycouldbesentalonga____.Sothe____telephonewasborn.inventoriginalseveralseparatedifficultjoinednoticedcurrentwirefirst有一天做实验,他把一根干草的一端和一个聋子的耳鼓膜连接起来，贝尔注意到干草烟熏过的玻璃上产生声波振动．Para6:1).Whatishisnewdiscovery?Howdidhediscover?Thetetrahedronshape.Whilesearchingforakitestrongenoughtocarryamanintotheair,Bellexperimentedputtingtrianglestogetheranddiscoveredit.Bychance

2).SentencereplacementBecausethetetrahedronisverystable,ithasprovedveryusefulinthebuildingofbridges.Beingverystable,ithasprovedinvaluableinthedesignofbridges.(四面体)十分稳定牢固,在桥梁设计领域的价值难以估量。SummaryGivetherightorderaccordingtothetext,andthefirstsentenceisgiven.1.Hewasbornin1847inScotland.2.In1876,heinventedthetelephone.3.Bellwrotealettertohisfather.4.Hemadesomeotherinventions.5.Hesentthefirstmessagetohisassistant.6.Heinventedthemicrophone.Bellwasaninventorallhislife.…_____,_____,_____,____,____,_____162354Readthepassagealoud.

Bellwasaninventorallhislife.Hewasbornin1847inScotland.Heinventedthemicrophone.In1876,heinventedthetelephone.Bellwrotealettertohisfather.Hesentthefirstmessagetohisassistant.Hemadesomeotherinventions.SummaryTalkingbar

说说吧Doyouthinkitnecessaryforstudentstoowecellphones?Giveyouropinionandyourreasons.Keywords:

Agree:fashionconvenientturnoffDisagree:wastemoney/timebreakrulesinterruptbeharmfulto

Somestudentsthinkacellphonenecessaryandconvenie