新目标人教版英语九年级《Unit 10 When was it invented》课件A

SectionA Unit10 Whenwasitinvented 1aGROUPWORKLookatthethingsbelow Inwhatorderdoyouthinktheywereinvented Numberthem 1 5 1 2 3 4 5 1bListenandmatchtheinventionswiththedates a b e d c 18761885192719711976 a b e c d 1cPAIRWORK A Whenwasthetelephoneinvented B Ithinkitwasinventedin1876 JulieThompson battery operatedslippers ChelseaLanmon heatedicecreamscoop JayceCoziarandJamieEllsworth shoeswithadjustableheels 2aListenandnumbertheinventionsintheorderthatyouhear 3 1 2 PAIRWORKWhowasit weretheyinventedby Itwas TheywereinventedbyChelseaLanmon 3aPAIRWORKMakealistoffivehelpfulinventionsandfiveannoying planecomputerbikecartrain atomicbomb 原子弹 missile 导弹 rifle 步枪 chemicalweaponinstantglue 速干胶 3bPAIRWORKA Whatdoyouthinkisthemosthelpfulinvention B Ithinkthemosthelpfulinventionisthelightbulb A Whyisthat B Well itgivespeoplemoretimetoworkandplayeveryday A Whatdoyouthinkisahelpfulinvention B Ithinkitisthecar A Whyisthat B Well itmakesitpossibleforpeopletomovetodistantplacesfaster 4PAIRWORKImagineyouareleftaloneonasmallislandinthesea Ifyouareallowedtotakefiveinventionsalongwithyou whatwouldyoutake Iwouldliketotakethefollowingswithme aknife aflashlight acellphone atelescopeandagun A I dliketohavearadiobecauseIcouldlistentomusicallday B Yes butthat snotgoingtohelpyouleavetheisland Ithinkitwouldbebettertohave 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 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 Thepassivevoice 被动语态被动语态的用法 不知动作执行者时 常用被动语态 e g Mybikewasstolenyesterday ThiscarismadeinAmerica 2 不必要说出动作执行者时 常用 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 污染 Thepassivevoice 被动语态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 Thepassivevoice 被动语态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 谓语动词的过过去分词 宾 时间状语 Students bookP70 part4 HOMEWORK 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