九年级英语 Unit 9 When was it invented. 一 课件人教版新目标Period 1.ppt

unit9whenwasitinvented no 11middleschool period1 whatarethey theyarefourinventionsofchina gunpowder papermaking printing compass makealistofinventionsyouknow whoinventedthetelephone whowasthetelephoneinventedby bellinventedthetelephone itwasinventedbybell 被动语态 被动语态 passivevoice 结构 be v p p am are is 动词的过去分词 was were 动词的过去分词 一般现在时的被动语态 一般过去时的被动语态 manypeoplespeakenglish 主动语态 englishisspokenbymanypeople thenaughtyboybrokethewindowyesterday 主动语态 thewindowwasbroken bythenaughtyboy yesterday weboughtsomebooks 主动句与被动句之间的转换 somebookswerebought byus 主语谓语动词主动语态的过去式宾语 主语谓语动词被动语态的过去分词介词 宾语 主动句变为被动句所遵循的4个步骤 1 把原主动句中的宾语变为被动句的主语 2 把动词变为被动形式即be 过去分词 并注意其人称和数随主语的变化 而动词的时态则保持不变 3 原主动句的主语如需要则放在by后面以它的宾格形式出现 注代词的宾格 如不需要则可省略 4 其它的成分 定语 状语 不变 被动语态的几种句型 1肯定句主语 be 过去分词 by asweetsongwassungbyheronthestage 2否定句主语 be not 过去分词 by 3一般疑问句be 主语 过去分词 by asweetsongwasn tsungbyheronthestage wasasweetsongsungbyheronthestage 4特殊疑问句疑问词 be 主语 过去分词 by wherewasasweetsongsungbyher 请把下列的主动句变为被动句 1 hewroteanarticlelastweek anarticlewaswrittenbyhimlastweek 2 thepeoplemakehistory historyismadebypeople 3 dopeopleusechineseonlyinchina ischineseusedbypeopleonlyinchina 4 theydidn tvisitthecitytwoyearsago thecitywasn tvisitedbythemtwoyearsago 5wheredidyoumakethem whereweretheymadebyyou 1 thewomanaskedthepolicemanforhelp 2 theoldmanontvtellsastoryonsunday 3 dotheyusetheboxasatable 4 shesentmeacollectionlastweek 5 theteacherdoesn tteachusmaththisterm 练习 请把下列主动句变为被动句 6 didlilybuyhersisterahat 7 weoftenhearhimplaytheviolinathome 8 thelazyboydidn twashclothesyesterday 9 studentslistentothekindteachercarefully 10 whendidyourfathertookyoutothepark calculator 1985 henryford 1971 1885 1907 wright cray billhewlett 1b listenandmatchtheinventionsandthedates 1876 1885 1927 1971 1976 daecb 1876 1885 1927 1971 1976 daecb thetelephonewasinventedin1876 thecarwasinventedin1885 whenwas invented pairwork lookatthefollowingconversation makeconversationswithyourpartner a what sthiscalledinenglish b it scalledatv a isitaninvention b yes itis a whenwasthetvinvented b itwasinventedin1926 a whowasitinventedby b itwasinventedbybaird t what sthiscalledinenglish s it scalledatelephone t isitaninvention t whenwasthetelephoneinvented s itwasinventedin1876 t whowasitinventedby s itwasinventedbybell s yes itis 3 2 1 2a listenandnumbertheinventionsintheorderthatyouhearthem 2b listenagainandmatchtheitemsincolumnsa bandc changingthestyleofashoe juliethompson heatedicecreamscoop seeinginthedark jaycecoziarandjamieellsworth battery operatedslippe