Unit18InventionsWarming,listeningandspeaking课件
日期：2010-01-16 01:32
1926年制造出机械电视系统，wecan’thelpthinkingofthefourinventionsinancientChinaHowmanyfamousinventordoyouknow?Whatdotheyinvent?ThomasEdisonAmerica(1847——1931)张衡(78—139)贝尔(England)(1847--1922)本茨(德国)(1884--1929)兹沃雷金（1889－1982）美国1923年发明电子电视摄像管， 1931年研究成功电视显像管，Whenwespeakofinventions，克利斯托弗利(意大利)德莱斯奥威尔莱特(1871--1948)威尔伯莱特(1867--1912)永磁体能机械装置ReadthefollowingdescriptionAEdiblechopsticksBNose-topcomputerCElectricshoesDInflatablebicycleListentoDialogue1onthetapeandanswerthequestionsbelowWhataretheadvantagesofMrJones’newinvention?2Howdoesitwork?3Whatcanitbeusedfor?4WhydoesthepatentofficernotwanttogiveMrJonesapatent?ThenewinventioniscleanandcheapIt’savehiclethatdoesn’tneedanengineorfuelthevehicleispoweredbythepersonwhousesitTheinventioncanbeusedasameansoftransportation，贝尔德（1888－1946）英国发明家，insteadofcarsandbusesThepatentofficerwon’tgivethemanapatentbecausethevehicledescribedbytheinventorhasalreadybeeninvented–it’sabike-biket，
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