unit three how did you go to hangzhou lesson 11 课件4

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1、UNITTHREEHOWDIDYOUGOTOHANGZHOULesson11Itisatoolofcommunication;Itisconvenienttotakealongwithyou;Youcanhearaperson’svoicewhenusingit.Youcancallupsbnowandthen;mobilephoneInventionIt’salwaysequippedinhighbuildings;LifteorElevatorPeoplecangoupanddowninitin

2、steadofclimbingsteps.Itlookslikeasmallroom;vvvInventionItisoneofthefourgreatinventionsinancientchina.Itisblack.Peoplecanuseittomakebombs.powderInventionItisameansoftransportation.Ithasfourwheels.Peoplecandriveitonland.carWhyaretheyclever?IssacNewton艾萨克

3、·牛顿gravitydiscoveredBenFranklinLightningiselectricitydiscoveredWhyaretheyclever?radiumMadameCurie玛丽亚·斯克沃多夫斯卡-居里discoveredWhyaretheyclever?whodoyouthinkthismanis?CaiLun↓papermakingThomasEdison________theelectricbulbinventedAdiscoveryis__________________

4、__________________________________.alreadyexistinginnaturebutnotyetknownfindingoutsomethingbyhumanbeings(2)Aninventionis________________________________.somethingthatcreatedThepurposeofinventionsisconvenientcomfortabletomakeourlifemoreWhataretheimporta

5、ntinventionsofthe20thcentury?Whichdoyouthinkisthemostimportantone?YearInventionInventor(s)1902AirconditionWillisCarrie1903Gas-motoredandmannedplaneWrightbrothers1910ThefirsttalkingfilmThomasEdison1923TelevisionLogieBaird1928PenicillinAlexanderFleming19

6、37photocopierChesterFCarlson1940ColortelevisionPeterGoldmark1942ElectronicdigitalcomputerAmericanscientists1945AtomicbombAmericanscientists1950CreditcardsRalphSchneide1985WindowsOSMicrosoftCompany1990WorldWideWebTimburners-leeHomework1.readthetextthoro

7、ughly.2.previewthewordsandexpressions.Thankyou!