unit 4 Great Inventions (reading)ppt课件.ppt

UNIT4Greatinventions,1,invention,Lead-in,discovery,Canyoutellthedifferencebetweenthem?,2,Lead-in,Matchtherelevant(相关的)peopleandthings.,ThomasEdison,Bisheng(毕昇),KarlBenz,3,Whatarethese?,Inventions,4,Pre-reading,Lookatthetittleandthepictureofthispassage,thenanswerthefollowingquestions.1.Whatthreeinventionswillthispassagetalkingabout?2.Whichinventionsdoyouthinkisthegreatestinvention?Why?,5,While-reading,Closeyourbooks,andlistentothepassage.Thenmatchthetimewiththeevents.,Task1,6,ThewheelThewheelisperhapsthegreatestinventioninhistory.Afteritsinvention,travellingbecamefasterandmorecomfortable.Afewthousandyearsago,peoplestartedtousewheelsoncarriages.Intheearly19thcentury,thefirsttrainsbegantocarrypassengers.Atthestartofthe20thcentury,carsbecamepopular.Withoutthewheel,wewouldnothavetheseinventions.,Greatinventions,Greatinventionschangetheworld.Theyhelppeopleliveabetterlife.Thefollowingarethreeofthemostimportantinventionsinhistory.,7,ThetelephoneAlexanderGrahamBellinventedoneofthefirstpracticaltelephonesin1876.Sincethen,peoplehavebeenabletospeaktoeachotheroverlongdistances.Todaymillionsofpeopleacrosstheworldownmobilephones.Theyallowpeopletokeepintouchwitheachotheranytime,anywhere.,8,ThelightbulbThomasEdisondevelopedthefirstpracticallightbulbin1879.Beforetheinventionofthelightbulb,peoplehadtouseoillamps,gaslampsorcandlestoseeatnight.Withlightbulbs,peoplecandoasmanythingsintheeveningsastheycaninthedaytime.Canyouimaginelivingwithoutthem?,9,While-reading,In1867,In1879,Intheearly19thcentury,Atthestartofthe20thcentury,carsbecamepopular.AlexanderGrahamBellinventedoneofthefirstpractical.thefirsttrainbegantocarrypassengers.ThomasEdisondevelopedthefirstpracticallightbulb.,a,b,c,d,10,While-reading,Task2,Completethetablebelow.,Dontknow.,AlexanderGrahamBell,ThomasEdison,Afewthousandyearsago.,1876,1879,Travellingwasverydifficult.,Peoplecouldnotspeaktoeachotheroverlongdistances.,Peoplehadtouseoillamps,gaslamporcandlestoseeatnight.,TravellingbecamefasterandmorecomfortableCarriagesTrainsCars,Peoplecanspeaktoeachotheroverlongdistances.Peoplecankeepintouchwitheachotheranytime,anywherewithmobilephones.,Peoplecandoasmanythingsintheeveningsastheycanseeinthedaytime.,11,Readthetextcarefullyforthethirdtimethendiscussthefollowingquestionsingroupof4.,While-reading,Task3,1Howdogreatinventionshelppeople?2Whichinventionisprobablythegreatestinhistoryaccordingtothearticle?3WhatdidAlexanderGrahamBellinvent?4Whenwasthefirstpracticallightbulbinvented?5Whichofthethreethingswasinventedfirst?6Whatinventionsdidthewheelmakepossible?7Howdomobilephoneshelppeoplekeepintouchwitheachother?8Howdidpeopleseeatnightbeforetheinventionofthelightbulb?,12,Whichinventionisprobablythegreatestinhistoryaccordingtothearticle?,4Whenwasthefirstpracticallightbulbinvented?,3WhatdidAlexanderGrahamBellinvent?,1Howdogreatinventionshelppeople?,Thewheel.,Heinventedoneofthefirstpracticaltelephones.,In1879.,Theyhelppeopleliveabetterlife.,13,Howdidpeopleseeatnightbeforetheinventionofthelightbulb?,Whichofthethreethingswasinventedfirst?,Thewheelwasinventedfirst.,Theyallowpeopletokeepintouchwitheachotheranytime,anywhere.,Theyhadtouseoillamps,gaslampsorcandlestoseeatnight.,Whatinventionsdidthewheelmakepossible?,Howdomobilephoneshelppeoplekeepintouchwitheachother?,Itmadetheinventionsofcarriages,trainsandcarspossible.,14,Fillintheblanksaccordingtothepassage.,Ithinkthewheelisthe(1)_invention.Itmakesthetravelbecome(2)_and(3)_.Peoplestartedtousewheelson(4)_sinceafewthousandyearsago.Intheearly19thcentury,peoplebegantotakethe(5)_totravel.Whatismore,carhasbecomeoneofthemostpopularthingsatthe(6)_of20thcentury.,greatest,faster,start,morecomfortable,carriages,train,15,Fillintheblanksaccordingtothepassage.,Thefirst(1)_telephonewas(2)_byAlexanderGrahamBellin(3)_.People(4)_speaktoeachotheroverlong(5)_.Nowadays,manypeopleown(6)_.Ifyouwanttotalktootherpeopleat(7)_,(8)_,telephoneisyourbestfriend.,practical,invented,1876,can,distances,mobilephones,anytime,anywhere,16,Fillintheblanksaccordingtothepassage.,(1)_istheinventorofthelightbulb.Thelightbulbhastakenplaceof(2)_,gaslampsor(3)_.Withthelightbulb,peoplecandoalotofthingstheywantinthe(4)_.,ThomasEdison,oillamps,candles,evenings,17,Post-reading,Lookatsomeinterestinginventions.Haveadiscussioningroup.(talkaboutthefunctionsandtheinfluenceonourlife),18,Post-reading,Lookatsomeinterestinginventions.Haveadiscussioningroup.(talkaboutthefunctionsandtheinfluenceo