甘肃省兰州三十一中九年级英语上册 unit 9《When was it invented》Section A课件 人教新目标版.ppt

新目标九年级 whenwasitinvented unit9 sectiona languagegoal 1 graspthestructureofpassivevoice bedone 2 talkaboutthehistoryofsomeinventions thepassivevoice 被动语态英语中动词有主动和被动两种语态 主动语态表示主语是动作的执行者 被动语态表示主语是动作的承受者 在被动语态中动作的执行者有时用by短语表示出来 一 被动语态的构成 助动词be 及物动词的 过去分词am is are donewas were done 一般现在时 一般过去时 grammar 二 被动语态的用法 1 不知道动作执行者时 常用被动语态 e g mybikewasstolenyesterday thiscarismadeinamerica 2 不必要说出动作执行者时 常用被动语态 e g romewasnotbuiltinaday 3 为了突出强调动作的承受者时 常用被动语态 e g thousandsofbeachesarepolluted 三 主动语态变为被动语态的步骤 1 把原主动句中的宾语转换为被动语态的主语 2 把动词改为被动形式 即 be 过去分词 注意be动词要按新的主语的人称和数进行变化 时态要和原来的主动语态的时态保持一致 3 原来主动语态句中的主语 如果需要 就放在by后面以它的宾格形式出现 如果没有必要就可以省略 其他的成分 定语 状语 不变 句式也不能变 bellinventedthetelephonein1876 thetelephonewasinventedbybellin1876 主动语态变被动语态的结构图 主语 谓语动词过去时 宾 时间状语 主语 谓语动词的过去分词 宾 时间状语 1 theyproducedthatkindofcar 2 theworkersbuiltabridgeovertheriver 3 mothertellsmeastoryeveryday thatkindofcarwasproducedbythem abridgewasbuiltbytheworkersovertheriver iamtoldastorybymothereveryday i 请把下列主动句变为被动句 用所给动词的正确形式填空 1 thebike fix upbyxiaomingyesterday 2 sunglasses use forprotectingpeople seyes 3 apicture put upontheblackboard 4 french speak infrance 5 teenagersshould allow tochoosetheirownclothes wasfixed areused isput isspoken beallowed practice 一般现在时am is are done 一般过去时was were done e g e g chineseisspokeninbythemostpeopleintheworld 世界上讲汉语的人最多 纸是中国发明的 paperwasinventedinchina 被动语态结构汇总 一般将来时shall will be done 过去将来时would should be done e g e g 我的作业将在半小时后被完成 myhomeworkwillbefinishedinhalfanhour 他们结束训练时将被派往部队 theywouldbesenttothearmywhentheyfinishedthetraining 现在进行时am is are being done 过去进行时was were being done e g e g 这个计划正在执行中 theprojectisbeingcarriedout thecasewasbeinginvestigatedthen 那时这案子正在调查中 现在完成时have has been done 过去完成时had been done e g e g thisnovelhasbeentranslatedintoseverallanguages 这本小说已被译成了几种语言 theysaidthatproductioncostshadbeenreduced 他们说生产成本已经下降了 warmingup canyoutellwhenweretheyinvented 1885年 1876年 1971年 calculator k lkj let 1976年 1927年 1a lookatthethingsbelow numberthem 1 5 accordingtotheordertheywereinvented 3 5 2 4 1 a ithinkthetelephonewasinventedbeforethecar b well ithinkthetelephonewasinventedafterthecar a 1b listenandmatchtheinventionswiththedates 1876 1885 1927 1971 1976 b a c d e b e c d tapescripts girl lifemusthavebeendifficultwhenyouwereakid woman oh notreally whydoyousaythat girl well youdidn thavemanymoderninventions like youprobablydidn thaveatelephone right woman ofcoursewedid howolddoyouthinkiam thetelephonewasinventedin1876 girl howaboutcars ibetcarsweren tinventedyet woman suretheywere carswereinventedin1885 myfamilyhadacar ithinkyouneedtotakeahistoryclass alice girl ha ha well didyouhaveatv woman no wedidn t thetvwasinventedaround1927 ithink somefriendsofminehadone butinthosedays tvswerereallyexpensive andwecouldn taffordone girl andibetyoudidn thavecalculatorsandcomputersandstuff that ssomethingidoknow welearnedinschoolthathand heldcalculatorswereinventedin1971andpersonalcomputerswereinventedin1976 woman you reright ididn thavethosethingswheniwasyoung butidonow 3 1 2 2a listenandnumbertheinventionsintheorderthatyouhearthem 2b listenagainandmatchtheitemsincolumnsa b andc tapescripts boy whatarethose girl they rebattery operatedslippers boy whataretheyusedfor girl they reusedforseeinginthedark boy oh that scool whoweretheyinventedby girl juliethompson andlookatthisheatedicecreamscoop boy iknowwhatit sfor it susedforscoopingoutreallycoldicecream girl right itwasinventedbychelsealanmon boy myfavoritearethoseshoeswithadjustableheels youknow youcanmovetheheelsupanddown theywereinventedbyjaycecoziarandjamieellsworth girl andwhataretheyusedfor boy well youcanchangethestyleofyourshoes youcanmaketheshoesgofromcasualtodressy 2c pairwork roleplaytheconversationsusingtheinformationinthechartabove beusedfor被动语态 被用来做 介词for表目的用途 可接名词或动名词形式 a whatisthis b thisisaheatedicecreamscoop a whatisitusedfor b itisusedforscoopingreallycoldicecream a whowasitinventedby b itwasinventedbychelsealanmon grammarfocus 3a pairwork makealistoffivehelpfulinventionsandfiveannoyinginventions vacuum v kju m cleaner television car computer faxmachine air conditioner truck hairdryer junkfood icecream model1 a whatisthis b itisanalarmclock a whatisitusedfor b itisusedforwakingpeopleupinthemorning a doyouthinkitisannoying b sometimes wheniwanttogoonsleep pairwork 3b model2 a whatisthis b itisalightbulb a whatisitusedfor b itisusedforgivinglight a doyouthinkitishelpful b yes ithinkso becauseialwaysdohomeworkandreadbooksintheeveningbyitslight model3 a whatisthis b itisamicrowaveoven a whatisitusedfor b itisusedforheatingcoldfoodandcookingmeals a doyouthinkitishelpful b yes ithinkso becausemyparentsareverybusyandicanuseittocookmealsbymyself a whatdoyouthinkisthemosthelpfulinvention b ithinkthemosthelpfulinventionisthevacuumcleaner a whyisthat b well itcanhelpmecleanthefloorwhenmotherasksmetodothecleaning model4 a whatdoyouthinkisthemostannoyinginvention b ithinkthemostannoyinginventionistheair conditioner a whyisthat b well ifeeluncomfortableintheroomwithanair conditioner model5 4 groupwork choosefiveinventionsyouwouldliketohaveifyouarealoneonanisland a i dliketohavearadiobecauseicouldlistentomusicallday b yes butthat snotgoingtohelpyouleavetheisland ithinkitwouldbebettertohave model1 a i dliketohavesomematchesbecauseicouldlightafiretokeepwarm b yes butthat snotgoingtohelpyouleavetheisland ithinkitwouldbebettertohaveacellphone model2 a i dliketohaveatelescope t l skop becauseicouldlookfar b yes butthat snotgoingtohelpyouleavetheisland ithinkitwouldbebettertohaveasignallamp l mp model3 1 thetv invent around1927 2 theyareusedfor see inthepark 3 thiskite make byunclewang 4 tea discover alongtimeago 5 ourclassroom should