新人教版九年级英语上册unit6_When_was__it_invented_Section_A_第一课时课件.ppt

人教九年级英语Unit6 Whenwasitinvented SectionA 1a 2d Doyouknow WhataretheFourGreatInventionsintheancientChina Doyouknowwhenitwasinvented Whowasitinventedby 毕升 Doyouknowwhenitwasinvented Whowasitinventedby 1aLookatthethingsbelow Inwhatorderdoyouthinktheywereinvented Discussthemwithyourgroup Thennumberthem 1 4 1 first 4 last IthinktheTVwasinventedbeforethecar Well IthinktheTVwasinventedafterthecar 语法重点一 IthinktheTVwasinventedbeforethecar 我认为电视比汽车发明得早 这是一个主从复合句 think后面跟了一个宾语从句 因为主句是一般现在时态 从句根据句意用了一般过去时态 1 wasinvented意为 被发明 此结构为一般过去时的被动语态 一般过去时的被动语态的结构为 was were 及物动词的过去分词 如 Thesetreeswereplantedlastyear Thecarwasboughtyesterday 2 invent做动词 意为 发明 创造 指发明以前没有的新东西 当物做主语时 常用被动语态 invention名词 意为 发明物 inventor名词 意为 发明家 发明者 如 Edison agreatinventor inventedmanygreatinventionsduringhislife Manyinventionhavebeeninventedlastyear 1b Listenandmatchtheinventionswiththeyears 1876 1885 1927 1976 1c StudentB coverthedates StudentA askStudentBwhenthethingsinthepicturein1bwereinvented Thenchangerolesandpracticeagain Whenwasthetelephoneinvented Ithinkitwasinventedin1876 shoeswithspecialheels shoeswithlights hotice creamscoop runsonelectricity 2b Listenagainandcompletethechartbelow 2c Makeconversationsusingtheinformationin2b Whataretheyusedfor They reusedfor 语法重点二 Whataretheyusedfor 它们是用来做什么的 beusedforsth doingsth 意为 被用来做某事 表示用途或目的 后接名词或动名词 相当于beusedtodosth 如 Clothesareusedforkeeping tokeep warm Woodcanbeusedforbuilding tobuild houses Thestickisusedtowriteontheblackboard 语法重点二 辨析 beusedfor beusedas与beusedby 2 beusedas被用作 as是介词 意为 作为 其后一般接名词 强调使用的工具或手段 如 Theboxisusedasatablebymymother 3 beusedby被 使用 by是介词 意为 被 由 后接动作的执行者 如 Thetoolsareusedbytheworkersinthefactory HeyRoy thesubjectformyschoolprojectis Smallinventionsthatchangedtheworld Canyouhelpmethinkofaninvention Mypleasure Letmethink hmm Iknow Thezipper Thezipper Isitreallysuchagreatinvention Thinkabouthowoftenit susedinourdailylives Youcanseezippersondresses trousers shoes bags almosteverywhere Well youdoseemhaveapoint Ofcourse IthoughtaboutitbecauseIsawawebsitelastweek Thepioneersofdifferentinventionswerelistedthere Forexample itmentionedthatthezipperwasinventedbyWhitcombJudsonin1893 Butatthattime itwasn tusedwidely Really Sowhendiditbecomepopular Around1917 语法重点三 Thepioneersofdifferentinventionswerelistedthere 不同的发明的先驱者都列在这里 pioneer作名词 意为 先锋 开拓者 先驱 如 HewasapioneerintheuseofX rays Iseeeverybodyasapioneeroutthere 作动词 意为 开辟 首倡 如 Shepioneeredtheuseofthedrug 小结训练 1 Thetelephone byawell knownscientist Edison A inventedB inventingC wasinvented2 Englishisused asecondlanguage peopleinmanycountries A as byB for byC as for3 Whatisthebottleusedfor Itisused holdthewa