Unit 4Topic 1 When was it inventedA

Unit4AmazingScienceTopic2Whenwasitinvented?A:What’sthisinEnglish?B:It’sacomputerdesk.A:What’sitmadeof?B:It’smadeofwood.A:What’situsedfor?B:It’susedforholdingacomputer.Lookandlearn.A:HowdoyousaythisinEnglish?B:It’sapieceofpaper.A:What’sitmadefrom?B:It’smadefromwood.A:What’situsedfor?B:It’susedforwritingon.bemadeof由某种物质做成(看得出原材料，物理过程)bemadefrom由某种物质制成(看不出原材料，化学过程)bemadeupof由几部分组成bemadein在某地/某时制造bemadeby由某人制造bemadeinto被制成beusedfor被用来做beusedtodo被用来做beusedas被用作usedtodosth.过去常做beusedtodoingsth.习惯于做1234toothbrush/plastic/brushteethredwine/grapes/drinkFollowtheexamplestomakesimilarconversations.ruler/steel/measuretowel/cotton/cleanfacessweater/cotton/keepwarmlift/iron/goupanddownink/carbon/writeinbed/iron/sleepA.What’sitmadeof?B.It’smadeofwood.A.Doyouknowwhatitisusedfor?B.It’susedforsendingsatellitesorspaceshipsintospace.Wow!Amodelrocket!Look,listenandanswer.Iamnotallowedtoplaycomputergames.allowv.允许1.allowsb.todosth.允许某人做某事2.allowdoingsth.允许做某事3.beallowedtodosth.被允许做某事It’sbadforyourhealthifyouspendtoomuchtimeonthem.headachetootiredsoreeyes1.IwishIcouldgointospacesomeday.someday---------某一天,总有一天(将来)e.g.IwishIcouldhavemyownhousesomeday.2.Ihopeyourdreamwillcometrue.cometrue--------变成真的,实现realize/achieve-------makesth.cometrue表示主观愿望和假想的语气叫虚拟语气.wish后接that从句常用虚拟语气。当表示现在的愿望时,从句中的谓语动词用过去时。Whenwasitdeveloped?Wherewasitdeveloped?Listenandfinishthetable.MP3playerAround1998KoreaImproveourEnglish Invention Time Place Use 聚焦一般过去时的被动语态结构:助动词be+及物动词的过去分词1.肯定句式：主语+was/were+vt.-ed2.否定句式：主语+was/were+not+vt.-ed3.一般疑问句式：Was/Were+主语+vt.-ed4.特殊疑问句式：疑问词W/H+was/were+subject+vt.-edLet’ssumuptogether.Matchthepictureswiththeirinventions.213312Thenmakeconversationssimilarto2a. Invention Time Country Use Digitalcamera() 1975 America takephotos Computer() 1946 America helptoworkandstudy Cellphone() 1973 America communicateMakeupdialogsaccordingtotheform.A:Whatareyoudoing?B:Iam…A:What’sthis?B:It’sa(an)…A:What’situsedfor?B:It’susedfor…A:Whenwasitdeveloped?B:Itwasdevelopedin…A:Wherewasitdeveloped?B:Itwasdevelopedin…Forexample:走进艺术天地Intotheartbadge,remember,ironmedal,reward,goldartwork---paintedeggcoin,silvermug,glassBronzejue,copperporcelain,chinabridge,icerootcarving,root/wood()1.He___playcomputergamesunlesshefinishedhishomework.A.wasallowedtoB.wasnotallowedtoC.allowto()2.Weallknowthatpaper___wood.A.ismadeofB.ismadeintoC.ismadefrom()3.Thiskindofmachine___in2006.A.isinventedB.ismadeC.wasinvented()4.A(An)___isusedfortakingphotos.A.CameraB.LiftC.MP3player()5.Weshouldspendmoretime___becauseit’stooimportant.A.tolearnEnglishB.learningEnglishC.inEnglishBCCABI.Choosetherightanswers.Youcandoit.Ⅱ.Changethefollowingsentences.1.Mymotherallowsmetousehercellphone.(改为被动语态)I_________usemymother’scellphone.2.Arocketisusedforlaunchingsatellitesandspaceships.(就画线部分提问)_______arocket______?3.Thedigitalcamerawasinventedin1975.(就划线部分提问)________thedigitalcamera______?4.Maybeheisaninventor.(改为同义句)He________aninventor.5.What’sthisinEnglish?(改为同义句)________you________inEnglish?amallowedtoWhatisusedforWhenwasinventedmaybeHowdosaythisⅢ.Fillintheblankswiththerightprepositions.1.Thedeskismade_____wood.2.Theredwineismade_____grapes.3.Thisdeliciouscakewasmade___mymother.4.Glassesismade___glass.5.Ourgroupismadeup___fourstudents.6.Thatkindofmachineismade______Japan.offromofofbyinHomework:Writeashortpassageaboutoneofyourfavouriteinventions.表示主观愿望和假想的语气叫虚拟语气.wish后接that从句常用虚拟语气。当表示现在的愿望时,从句中的谓语动词用过去时。