重庆市涪陵九中九年级英语下册 Unit 9《When was it invented》课件 人教新目标版

Unit9Whenwasitinvented SectionA Warmingup Whatarethey Theyarelightbulbs Whenweretheyinvented Theywereinventedin1879 Whataretheyusedfor Theyareusedforgivinglight watch 1796 tellingtherighttime microwaveoven 1947 heatingfoodandcookingmeals alarmclock 1350 callingpeopletogetup GrammarFocus A Whenwas invented BIthinkitwasinventedin A Whatisitusedfor B Itisusedfor ving Listening 1b P68 1876年 1885年 1927年 1971年 1976年 Listening 2a 2b P69 3 1 2 scoopingreallycoldicecream shoeswithadjustableheels JayceCoziarandJamieEllsworth changingthestyleoftheshoes battery operatedsnakers JulieThompson seeinginthedark heatedicecreamscoop Lanmon Chelsea OralPractice 2c P69 Sentencepattern Whatis n 单 are n 复usedfor Itis Theyareusedfor Whowasit weretheyinventedby Itwas Theywereinventedby GrammarFocus P69 Thepassivevoice被动语态在被动语态的句子中 谓语部分的结构是be 过去分词 被动语态的句子的时态变化反映在be动词上 也就是说 把一个句子做成被动语态的句子 只需要写出be动词的所需时态 再加上所给动词 的过去分词就行了 当然 这只是指谓语部分而言 我们知道 be动词作为一个独立的谓语动词有自己现在分词 being 和过去分词 been 那么 下面我们来看看be在各种时态中的变化形式 一般现在时am is are一般过去时was were一般将来时shall will be过去将来时would should be现在进行时am is are being过去进行时was were being现在完成时have has been过去完成时had been Exercise I根据前后句子的关系 用适当的单词填空 使句子完整正确 1 wasthecarinvented Itwasinventedin1885 2 weretheyinventedby TheywereinventedbyJulieThompson 3 aretheyusedfor Theyareusedforseeinginthedark II用所给动词的适当形式填空 1 anewlibrary build inourschoollastyear 2 Cotton grow inthesoutheastofChina 3 Howmanytrees plant yesterday 4 Yourshoes wear out Youneedanewpair 5 When thiskindofcomputets use Twoyearsago When Who What Was built isgrown wereplanted wereworn were used 1 世界上许多国家都讲英文 English inmanycountriesallovertheworld 2 纸是中国发明的 Paper inChina 3 这栋大楼是去年建造的 Thebuilding lastyear Makesentences isspoken wasinvented wasbuilt 4 他父亲不会让他娶玛丽为妻的 Hewon t byhisfather tomarryMary 5 他们结束训练时将被派往部队 Theywould tothearmywhentheyfinishedthetraining 6 这个计划正在执行中 Theprojectis out beallowed besent beingcarried Pairwork 3a P70 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 Ithinkthemosthelpfulinventionisthevacuumcleaner Pairwork 4 P70 A Whyisthat B Well itcanhelpmecleanthefloorwhenmotherasksmetodothecleaning Dialogue2 A Whatdoyouthinkisthemostannoyinginvention B Ithinkthemostannoyinginventionistheair conditioner A Whyisthat B Well Ifeeluncomfortableintheroomwithanair conditioner A Whatdoyouthinkarethemostannoyingorhelpfulinventions B Ithinkthetruckisthemostannoyinginventionandthesoundproofdoorandwindowisthemosthelpfulinvention Dialogue3 soundproofdoorandwindow A Whyisthat B Thetrucksalwaysmakenoisesandpeoplecan tsleepwell Iftheyhavethesoundproofdoorandwindow peopleneedn tworryaboutthenoisesanymore Groupwork 4 P70 Whatwouldyoudoifyouarealoneonatinyisland A I dliketohavesomematchesbecauseIcouldlightafiretokeepwarm B Yes butthat snotgoingtohelpyouleavetheisland Ithinkitwouldbebettertohaveacellphone Dialogue1 A I dliketohaveatelescopebecauseIcouldlookfar B Yes butthat snotgoingtohelpyouleavetheisland Ithinkitwouldbebettertohaveasignallamp Dialogue2 SectionB crispyandsalty Describehowfoodtastes sour sweet sweet Listening 2a 2b P71 Thepotatochipswereinventedbymistake 2 Theywereinventedin1863 3 Thecustomerthoughtthepotatoesweren tthinenough T F T 4 Thecustomersaidtheyweren tsaltyenough 5 Georgewantedtomakethecustomerhappy 6 Thecustomerwashappyintheend T F F thatpotatochipswereinventedbymistake Chips byachefcalledGeorgeCrum Theywereinventedin GeorgeCrumcookedthemforalongtimeuntilthey Andhesprinkledlotsofsaltonthemsotheywere Thehistoryofchips Didyouknow wereinvented 1853 werecrispy reallysalty 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 Reading 3a P72 1 Whatisthisarticleabout Ithinkitisabouttheinventionoftea 2 Wasitinventedonpurposeorbyaccident Byaccident Thefirstsentencetellsusthat 3 Whenwasitinvented Over3 000yearsbefore1610 4 Whoinventedit TheemperorShenNong 5 Whocantellushowitwasinvented Accordingtoanancientlegend oncewhenShenNongwasboilingdrinking wateroveranopenfire someleavesfromanearbybushfellintothewaterandremainedthereforsometime Henoticedthattheleavesinthewaterproducedapleasantsmell Laterhetastedthewaterandfounditquitedelicious That showhediscoveredtea Explanation 1 Althoughteawasn tbroughttothewesternworlduntil1610 thisbeveragewasdiscoveredoverthreethousandyearsbeforethat 虽然茶直到1610年才传入西方世界 但这种饮料在三千多年前就被发现了 1 although作连词 意为 虽然 尽管 引导让步状语从句 我们不能根据汉语习惯 在后面使用连词but 不过它可以与yet still连用 若主从句的主语相同 且从句谓语含有动词be 可将从句主语和动词be省略 Although itwas snowing itwasnotverycold 虽然在下雪 但是天气不是很冷 Thereisairaroundus althoughwecan tseeit 尽管我们看不见 但我们周围全是空气 not until意为 直到 才 until引导一个时间状语从句 Hedidnotgotobeduntilhisfathercamehome 直到他爸爸回家时他才睡觉 2 AccordingtoanancientChineselegend theemperorShenNongdiscoveredteawhenhewasboilingdrinkingwateroveranopenair 根据中国古代的一个传说 神农帝在户外的火上烧饮用水时发现了茶叶 Accordingto是个短语介词 意为 根据 依照 后接代词 名词或由疑问词以及whether引出的名词性从句 Accordingtotheradio itwillraintomorrow 根据收音机说 明天有雨 Accordingtowhatyousaidjustnow hewasrightthen 根据你刚才说的 那么他就对了 leaf的复数形式为leavesremain表示 继续留在某处 3 Someleavesfromanearbybushfellintothewaterandremainedthereforsometime 一些叶子从附近的灌木丛落到水里 并在水里浸泡了一段时间 Howlongwillyouremainhere 你要在此地停留多久 f