云南省昆明市西山区团结民族中学九年级英语《Unit 9 When was it invented》课件 人教新目标版.ppt

unit9whenwasitinvented tuanjiemiddleschool goforit grade9 fourgreatinventionsofchina cailuninventedthepapermakingin105 invented thepapermaking in105 cailun thepapermaking was by invention invent inventor task1 guess whichonewasinventedearlierandwhichonewasinventedlater a ithinkthe wasinventedbeforethe b well ithinkthe wasinventedafterthe calculator task2 listenandfindoutthedatesoftheinventions the wasinventedin 1885 1876 1971 1976 1927 doyouremember a whenwasthe invented b itwasinventedin whowasthepapermakinginventedby in105 itwasinventedbycailun thepapermakingwasinventedbycailunin105 task3 let sguesswhoinventedit a whowasthe inventedby b ithinkitwasinventedby carcomputertelephonelightbulb stevejobsandstevewozniakedisonkarlbenzbell task4 doyouknowwhattheyareusedfor let smatchthemtotheuses 1 talkingwiththepersonwhoisn tnear2 traveling3 cooking4 eatingfood5 keepingawayfromtherain6 wakingusup the is areusedfor ing whatis arethe usedfor itis theyareusedfor ing task5 workinpairstotalkabouttheusesofthethingsaroundus youcantalkaboutthethingsbelowifyouwant task6 let sknowmoreinventions a whenwas werethe invented b itwas theywereinventedin a whowas werethe inventedby b itwas theywereinventedby a whatis arethe usedfor b itis theyareusedfor ing task7 4studentsagrouptoreport introduceaninvention includingitsinventor dateanduses summary 被动语态的构成 1 be 过去分词 by 动作执行者 2 被动语态句子的时态由be的时态决定 be后的过去分词不随之改变 3 否定句 在be后加not 4 疑问句 把be提前 summary 主动语态变被动语态 1 主动语态的宾语被动语态的主语 2 主动语态的动词be 该动词的过去分词 作被动语态的谓语 be按人称变化 但时态不变 3 主动语态的主语by 该主语 放在被动语态的句尾 可以省略 若原主语是代词放在be后要变为其宾格形式 被动语态专项练习 据划线部分提问1 glasseswereinventedin1450 2 thebottlemachinewasinventedbymichaelowens 3 dictionariesareusedforlookingupwords whenwereglassesinvented whowasthebottlemachineinventedby whataredictionariesusedfor 用所给词的适当形式填空 1 anewlibrary inourschoollastyear build 2 they toschool take 3 when thesecomputers inthisschool lastyear use 4 thegreatwall allovertheworld 5 i insummer bear know 6 who thisbook by write 7 olderpeople well must lookafter wasbuilt weretaken wereused wasknown wasborn waswritten mustbelookedafter 将下列句子变为被动语态 每空一词 wecanfinishtheworkintwodays thework intwodays 2 thechildrenwillsinganenglishsong anenglishsong bythechildren 3 theyuseknivesforcuttingthings knives forcuttingthings 4 lucysentmeanewyearcardlastweek anewyearcard herbymelastweek 5 wecleantheclassroomeveryday theclassroom everyday canbefinished willbesung areused wassentto wascleaned homework 根据你所掌握的材料写一个短文 介绍一个你认为最有用 最有趣 最 的发明 1 题目the inventi