unit11warmingup&speaking课件
日期：2010-09-01 09:22
Unit11ScientificachievementsGoals:TalkaboutscienceandscientificachievementsPractiseexpressingintentionsandwishesLearnaboutWordFormationWriteapersuasionessayCarsAeroplanesComputerSolarenergytelevisionDiscussion:WhatscientificachievementsdoyouthinkhavechangedtheworldWhichonedoyouthinkisthemostsignificant?Why?2Dotheseachievementshaveanythingincommon?Ifso，what?electricity:Becausemodernindustrycoulddonothingwithoutitcloning:Becauseitcanhelpuskeeplotsofpreciouslivingthingsnuclearscience:Becauseithasbroughtusthenewestenergyresourcessolarenergy:becauseitdoesn’tcauseanypollutionFourGreatInventionsofAncientChinaGunpowderPrintingPaperCompassOtherinventions:sewingmachinewashingmachinefrigde，etcDoyouknowanyfamousscientistsintheworld?Whatdoyouknowaboutthecontributionstotheworld?NowlookatthefollowingpicturesandseehowmuchyouknowaboutthemAlexanderGBell1847-1922Apioneerinthefieldof，
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