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Unit4AmazingScienceUnit4AmazingScienceTopic2Topic2WhenwasitWhenwasitinventinvented?ed?作者：贵州铜仁石阡溪口中学饶文星作者：贵州铜仁石阡溪口中学饶文星MakesentencesaccordingMakesentencesaccordingtothepicturesandthewords.tothepicturesandthewords.ReviewReviewMP3/plasticShenzhouVI/metalmake/Americainvent/EdisonMakesentencesaccordingMakesentencesaccordingtothepicturesandthewords.tothepicturesandthewords.T:whywasthethiefcaughtbypoliceman?S1:Becauseheisstupid.S2:Becausehedidn’trunaway.T:No,heiscaughtbecauseoftheGlobalPositioningSystem.Doyouwanttoknowmoreaboutit?Let’slistento1a.discussHaveyouevergotlostsomewhere?Whatmethoddidyouusetofindyourdirection?TheGlobalPositioningSystemlandmark（录音）1.Howcantheearlyexplorersidentifythedirection?Theyfoundthatthestarsintheskyweregoodlandmarks.Read1aagainanddiscussthefollowquestions.2.WhatisGPSlike?It'slikeaman-madestar.Itcanhelpusexploreourplanetanddiscoverwhereweare.3.What'sGPS'smainrole?Newwords•landmarkn.路标•globaladj.全球的•GlobalPositioningSystem•全球定位系统•discoverv.发现•thiefn.小偷•runaway逃跑Part1Part1Phrasesworkout计算；算出e.g.Workoutamathsproblem.算出一道数学题。workat从事；学习；攻读e.g.HeisworkingatRussian.他在攻读俄语。workon从事；忙于e.g.They'reworkingontheirhomework.他们在忙于做作业。workout计算；算出e.g.Workoutamathsproblem.算出一道数学题。workat从事；学习；攻读e.g.HeisworkingatRussian.他在攻读俄语。workon从事；忙于e.g.They'reworkingontheirhomework.他们在忙于做作业。1.in...direction朝......方向e.g.Theseoldtombswerelinedinthesamedirection.这些古墓是按同一个方向排列的2.work(well)奏效；起作用e.g.Themedicineworkedwell.这药奏效了1.in...direction朝......方向e.g.Theseoldtombswerelinedinthesamedirection.这些古墓是按同一个方向排列的2.work(well)奏效；起作用e.g.Themedicineworkedwell.这药奏效了Part1Part1Phrases4.therest剩余部分后接of+n.如果跟的是可数名词，它就是复数。如果跟不可数名词，它就是单数。e.g.Therestoftheapplesareforyou.剩下的苹果是给你的。Therestofthemilkhasgonebad.剩下的牛奶变坏了。4.therest剩余部分后接of+n.如果跟的是可数名词，它就是复数。如果跟不可数名词，它就是单数。e.g.Therestoftheapplesareforyou.剩下的苹果是给你的。Therestofthemilkhasgonebad.剩下的牛奶变坏了。3.aslongas只要e.g.YouwillmakegreatprogressaslongasyousticktolearningEnglish.只要你坚持学英语，你就会取得巨大进步。3.aslongas只要e.g.YouwillmakegreatprogressaslongasyousticktolearningEnglish.只要你坚持学英语，你就会取得巨大进步。practiceMakeaconversationbetweentheteacherandstudentsT:WhenwastheMP3playerdeveloped?S1:Around1998.T:Wherewasitdeveloped?S2:ItwasdevelopedinKorea.T:Wherewerelaptopsinvented?S3:TheywereinventedinJapan.Whathaveyoulearntaboutinthistopic?Canyousaysomethingaboutoneofthem?1.Rocket2.Cloning3.Robots4.GPS5.OthergreatinventionsWorkingroupGrammar:一般过去时的被动语态主语+was/were+过去分词+其他。e.g.Manytreeswereplantedbyusthisyear.今年种了很多树.肯定形式主语+be(was/were)+not+过去分词+其他。e.g.Schoolsportsmeetingwasn'theldthisyear.今年没有举行校运会。否定形式Be(Was/Were)+主语+过去分词+其他？肯定回答：Yes,主语+be(was/were).否定回答：No,主语+be(was/were)+not(常缩写）e.g.Wastheworkfinishedbyhim?Yes,itwas./No,itwasn't.一般疑问句形式2aGrammarfocusPassivevoice()ⅡTheradiowasinventedbyGuglielmoMarconiin1895.Whenwasitdeveloped?Wherewasitdeveloped?Wherewerelaptopsinvented?Around1998.ItwasdevelopedinKorea.TheywereinventedinJapan.（录音）2bUsefulexpre...