四川省江油市明镜中学九年级英语《Unit9 When was it invented》课件1 人教新目标版.ppt

unit9 whenwasitinvented sectiona 1b listenandmatchtheinventionswiththedates a b e d c 18761885192719711976 d a b e c 1c pairwork 1c pairwork a whenwasthetelephoneinvented b ithinkitwasinventedin1876 juliethompson battery operatedslippers chelsealanmon heatedicecreamscoop jaycecoziarandjamieellsworth shoeswithadjustableheels 2a listenandnumbertheinventionsintheorderthatyouhear 3 1 2 2b pairwork whowasit weretheyinventedby itwas theywereinventedbychelsealanmon 2cpairwork sentencepattern whatisit aretheyusedfor they reusedforseeinginthedark 3apairwork helpfulinventions vacuumcleaner soundproofdoorandwindow car computer faxmachineannoyinginventions air conditioner truck telephone junkfood icecream sentencepattern whatisthisinthepicture whatisitusedfor doyouthinkitishelpful annoying dialogue1 a whatisthis b itisanalarmclock a whatisitusedfor b itisusedforwakingpeopleupinthemorning a doyouthinkitisannoying b sometimes wheniwanttogoonsleep dialogue2 a whatisthis b itisalightbulb a whatisitusedfor b itisusedforgivinglight a doyouthinkitishelpful b yes ithinkso becauseialwaysdohomeworkandreadbooksintheeveningbyitslight dialogue3 a whatisthis b itisamicrowaveoven a whatisitusedfor b itisusedforheatingcoldfoodandcookingmeals a doyouthinkitishelpful b yes ithinkso becausemyparentsareverybusyandicanuseittocookmealsbymyself dialogue1 a whatdoyouthinkisthemosthelpfulinvention b ithinkthemosthelpfulinventionisthelightbulb 3bpairwork a whyisthat b well itgivespeoplemoretimetoworkandplayeveryday 4groupwork imagineyouarealoneonatinyisland choosefiveinventionsyouwouldliketohaveontheislandwithyou a i dliketohavearadiobecauseicouldlistentomusicallday b yes butthat snotgoingtohelpyouleavetheisland ithinkitwouldbebettertohave 1 世界上许多国家都讲英文 englishisspokeninmanycountriesallovertheworld 2 纸是中国发明的 paperwasinventedinchina 3 这栋大楼是去年建造的 thebuildingwasbuiltlastyear makesentences 4 他父亲不会让他娶玛丽为妻的 hewon tbeallowed byhisfather tomarrymary 5 他们结束训练时将被派往部队 theywouldbesenttothearmywhentheyfinishedthetraining 6 这个计划正在执行中 theprojectisbeingcarriedout 8 这本小说已被译成了几种语言 thisnovelhasbeentranslatedintoseverallanguages 7 那时这案子正在调查中 thecasewasbeinginvestigatedthen 9 他们说生产成本已经下降了 theysaidthatproductioncostshadbeenreduced dialogue1 a i dliketohavesomematchesbecauseicouldlightafiretokeepwarm b yes butthat snotgoingtohelpyouleavetheisland ithinkitwouldbebettertohaveacellphone 移动电话 4groupwork a i dliketohaveatelescopebecauseicouldlookfar b yes butthat snotgoingtohelpyouleavetheisland ithinkitwouldbebettertohaveasignallamp dialogue2 n 望远镜 n 信号灯 thepassivevoice 被动语态 英语中动词有主动语态和被动语态两种语态 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 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 eg mybikewasstolenyesterday thiscarismadeinamerica 2 不必要说出动作执行者时 常用被动语态 eg romewasnotbuiltinaday 3 为了突出强调动作的承受者时 常用被动语态 eg thousandsofbeachesarepolluted 污染 thepassivevoice 被动语态 主动语态变为被动语态的步骤 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 thepassivevoice 被动语态 主动语态变被动语态的结构图 bellinventedthetelephonein1876 thetelephonewasinventedbybellin1876 主语 谓语动词过去时 宾语 时间状语 主语 谓语动词的过去分词 宾语 时间状语 thepassivevoice 被动语态 主动语态改被动语态 bell invented thetelephone in1876 was by goodbye whatwasitinvented crispyandsalty describehowfoodtastes sour sweet salty intheend bymistake byaccident accordingto 咸的 含盐的 名词 salty加y构成形容词 最后 终于eg everythingwillbeallrightintheend 弄错的 错误地eg hetooktheumbrellabymistake 偶然 意外 无意中eg imetherbyaccidentinacrowdedbus 根据 按照 eg we llbepaidaccordingtotheamountofworkwedo sour sweet sweet sweet crispy salty listenandcircle t fortrue or f forfalse thepotatochipswereinventedbymistake theywereinventedin1863 thecustomerthoughtthepotatoesweren tthinenough thecustomersaidtheyweren tsaltyenough georgewantedtomakethecustomerhappy thecustomerwashappyintheend tftftftftftf thehistoryofchips thatpotatochipswereinventedbymistake chips byachefcalledgeorgecrum theywereinventedin georgecrumcookedthemforalongtimeuntil they andhesprinkledlotsofsaltonthemsotheywere didyouknow wereinvented 1853 werecrispy reallysalty whoinventedtea didyouknowthattea themostpopulardrinkintheworld afterwater wasinventedbyaccident althoughteawasn tbroughttothewesternworlduntil1610 thisbeveragewasdiscoveredoverthreethousandyearsbeforethat accordingtoanancientchineselegend theemperorshennongdiscoveredteawhenhewasboilingdrinkingwateroveranopenfire someleavesfromanearbybushfellintothewaterandremainedthereforsometime theemperornoticedthattheleavesinthewaterproducedapleasantsmell laterhedecidedtotastethehotmixture itwasquitedelicious andinthisway oneoftheworld sfavoritedrinkswasinvented readthearticleandwriteanswerstothequestions whatisthearticleabout itisabouttheinventionoftea itwasinventedoverthreethousandyearsago itwasinventedbythechineseemperorshennong itwasinventedbyaccident 3 whowasitinventedby 4 howwasitinvented 2 whenwasitinvented 1 thecustomsaidtheyweren tsaltyenough 这个顾客说菜不够咸 1 said后是宾语从句 省略了that 当宾语从句主句用一般过去时 从句也要用过去的某种时态 heaskedmewhomiwaswaitingfor 他问我在等谁 explanation 但enough修饰名词时 可以放在名词之前 也可以放在名词之后 如 ihaveenoughmoneytobuyit ihavemoneyenoughtobuyit 2 thepotatochipswereinventedbymistake 薯片是无意中被发明的 mistake做名词 意为 弄错 误解 youhavemadeafoolishmistake 你犯了一个愚蠢的错误 mistake作动词 意为 弄错 误解 shedidn tspeakveryclearlysoimistookwhatshesaid 她讲的不清楚 所以我误解了她的话 bymistake意为 错误地 无意地 itookhisbackpackbymistake 我错拿了他的书包 heputsaltinhercupofteabymistake 他错把盐放进她的茶里 apenthatlistensandwrites newinvention use itcanlistentothewriterandwritebyitself price 50 musiccandle activityglasses temperaturecup 3areading 1 whatisthisarticleabout ithinkitisabouttheinventionoftea 2 wasitinventedonpurposeorbyaccident byaccident thefirstsentencetellsusthat 3 whenwasitinvented over3 000yearsbefore1610 4 whoinventedit theemperorshennong 5 whocantellushowitwasinvented accordingtoanancientlegend oncewhenshennongwasboilingdrinking 3