unit 4 topic 1 section a

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1、Unit4AmazingScienceTopic1Whenwasitinvented?SectionAisspokenbyspeakshim.被动语态(PassiveVoice)be+done主动语态：主语+动词+宾语HeEnglish.English被动语态：主语+be+过去分词+by+宾语Manypeopleusecomputers.Computers_____________by________________.Theworkersplanttreesinthegarden.Trees____________int

2、hegarden____theworkers.areusedmanypeopleareplantedbyCanyoutry？A:What’sthelockmadeof?B:It’smadeofmetal.A:What’situsedfor?B:It’susedforlockingthedoor.n.锁v.（用锁）锁上，被锁住2Followtheexampletomakeupsimilarconversations.lock/metl/n.金属metalA:What’sthepapermadefrom?B:It’smadefr

3、omwood.A:What’situsedfor?B:It’susedforwritingon.paper/woodcomputerdesk/woodchopstick/bamboosweater/cottonwatch/metalDigitalcameraisusedfortakingphotos.Ilikelaptopverymuch./dɪdʒɪtl/adj.数码的/læptɑp/n.手提电脑3aA.Listentotheconversationsandnumberthefollowingpictures.2313aB

4、.Listenagainandcompletethetable.InventionItemlaptopcellphonedigitalcameraMaterialUsageYearcountryplasticplasticmetalandplasticstudy,workandplaycommunicatetakephotosaround19851973around1975JapanAmericaAmerica3bWorkinpairs.Askandanswerquestionsbasedonthetablein3awith

5、passivevoice.A:Whatisalaptopmadeof?B:Itismadeofplastic.A:What’situsedfor?B:Itisusedforstudying.A:Whenandwherewasitdeveloped?B:ItwasdevelopedinJapanin1985.Example:Focusonthemeaningincommunication.Don’tbeafraidofmakingmistakes.Itisaspaceship.TherearemanysatellitesinC

6、hina./speɪsʃɪp/n.宇宙飞船/sætəlaɪt/n.卫星；人造卫星1.What’sitmadeof?It’smadeofmetal.2.Doyouknowwhatitisusedfor?It’susedforsendingsatellitesorspaceshipsintospace.Wow!Amoderocket!listento1aandanswerthequestions./rɒkɪt/n.火箭1bread1aandmarkT(True)orF(False).Janeisunhappybecauseshe

7、wasnotallowedtogotoapartylastnight.()Kangkang’sfathermadeamodelrocketforhim.()Therocketismadeofmetal.()Arocketisusedforsendingsatellitesorspaceshipsintospace.()FFTT1cRead1aagainandanswerthefollowingquestions.1.WhydidKankangaskJanenottospendtoomuchtimeoncomputergame

8、s?Becauseit’sbadforherhealth.3.WhotaughtKangkangsomeknowledgeaboutspaceships?Mr.Brown.4.What’sKangkang’sdream?Hewisheshecouldgointospacesomeday.2