湖北省武漢市北大附中武漢為明實驗中學(xué)九年級英語全冊《Unit 9 When was it invented》Section A課件 人教新目標(biāo)版.ppt

九年級人教新目標(biāo) unit9whenwasitinvented sectiona whichdoyouthinkisthemostimportantinventionintheworld whatotherscanyouthinkof tv telephone radio computer calculator car doyouknowwhattheyare computer radio television calculator telephone car 1a groupwork lookatthethingsbelow inwhatordersdoyouthinktheywereinvented numberthem 1 5 5 2 4 1 3 1b listenandmatchtheinventionswiththedates 1885 1976 a b 1971 1876 c d 1927 e accordingtowhatyouhavelistened answerthequestionsbelow 1 whatdidthegrandmahavewhenshewasyoung 2 whydidn ttheyhaveatelevisionatthattime 3 doesgrandmahavepersonalcomputernow telephoneandcar becauseitwasexpensive yes shedoes 1c pairwork whenwasthecomputerinvented ithinkitwasinventedin1976 shoeswithadjustableheels it susedforscoopingreallycoldicecream right itwasinventedbychelsealanmon battery operatedslippers heatedicecreamscoop 2a listenandnumbertheinventionsintheorder 3 1 2 2b listenagainandmatchtheitemsincolumns 2c pairwork whatisitusedfor itisusedforseeinginthedark 3a hateitorlikeit alarmclock camera lightbulb herbicide microwaveoven refrigerator vediographyingmachine airconditioner plasticbags canyouthinkofothers 3b pairwork a whatdoyouthinkisthemosthelpfulinvention b ithinkthemosthelpfulinventionisthecomputer a whyisthat b becauseithelpsmesearchtheinformationthatineed 4 groupwork imaginethatyouarealoneonatinyisland choosefiveinventionsyouwouldliketohaveontheislandwithyou a i dliketohavearadiobecauseicouldlistentomusicallday b yes butthat snotgoingtohelpyouleavetheisland ithinkitwouldbebettertohaveatelephone explanation 1 it susedforscoopingreallycoldicecream beusedfor意為 被用來 強調(diào)用途或作用 e g thedusterisusedforcleaningtherooms beusedas意為 被當(dāng)作 來用 強調(diào)被當(dāng)作工具或手段來用 beusedby意為 被 使用 強調(diào)使用者 e g thebigboxisusedasatable thecarisusedbyourmanager 2 shoeswithadjustableheelswereinventedby 1 with是介詞 意為 具有 持有 帶有 e g agirlwithlonghairahousewithablueroof 2 adjustable意為 可調(diào)整的 可調(diào)節(jié)的 e g ihaveapairofshoeswithadjustableheels 3 invent是動詞 意為 發(fā)明 創(chuàng)造 e g edisoninventedthelightbulb invention是名詞 發(fā)明 發(fā)明物 e g edisonhadabout2 000inventionsduringhislifetime 3 battery operatedslipperswereinventedby operate用法 1 操作 e g canyouoperatethecomputer 2 起作用 見效果 e g thesleepingpilloperatedatonce 3 經(jīng)營 管理 e g thecompanyoperatestenfactories 4 動手術(shù) e g thedoctorwilloperateonhismothernextweek 4 annoyingadj 討厭的 惱人的 往往指事物 e g howannoyingitis 真討厭 annoyedadj 生氣的 惱怒的 往往指人 e g myfatherisannoyedwithme 爸爸在生我的氣 5 helpfuladj 有幫助的 有益的e g mr whiteisaveryhelpfulman 構(gòu)詞法 n ful adje g use ful usefulthank ful thankfulbeauty ful beautifulcare ful careful 6 imaginethatyouarealoneontinyisland aloneadj 意為 單獨的 不帶感情色彩 e g whenhiswifedied helivedalone lonelyadj 意為 孤獨的 寂寞的 e g hefeelslonelywhenheisalone lonely指地方時表示 荒涼的 偏僻的 e g theoldmanlivesinalonelysmallvillage 7 ithinkitwouldbebettertohave 1 would在此處表示 料想或猜想 揣測 后接動詞原形或完成式 e g whatwouldshebedoingthere 2 itisbettertodosth 最好做 it是形式主語 動詞不定式是真正的主語 e g itisbetterforyoutowalktoschool itisbettertodosth hadbetterdosth grammarfocus thepassivevoice 一 語態(tài)英語中動詞有主動語態(tài)和被動語態(tài)兩種語態(tài) 主動語態(tài)表示主語是動作的執(zhí)行者 被動語態(tài)表示主語是動作的承受者 在被動語態(tài)中動作的執(zhí)行者有時用by短語表示出來 二 被動語態(tài)的構(gòu)成助動詞be 及物動詞的過去分詞am is are done一般現(xiàn)在時was were done一般過去時 三 被動語態(tài)的用法1 不知動作執(zhí)行者時 常用被動語態(tài) eg mybikewasstolenyesterday thiscarismadeinamerica 2 不必要說出動作執(zhí)行者時 常用被動語態(tài) eg romewasnotbuiltinaday 3 為了突出強調(diào)動作的承受者時 常用被動語態(tài) eg thousandsofbeachesarepolluted 四 主動語態(tài)變?yōu)楸粍诱Z態(tài)的步驟 theyspeakenglish 主語謂語賓語englishisspokenbythem 主語謂語動詞的過去分詞賓語 1 主動語態(tài)的賓語變成被動語態(tài)的主語 2 主動語態(tài)的謂語動詞變?yōu)楸粍诱Z態(tài)的謂語動詞 即 be 及物動詞的過去分詞 be有時態(tài) 人稱和數(shù)的變化 3 主動語態(tài)的主語變?yōu)閎y的賓語 主動語態(tài)變?yōu)楸粍诱Z態(tài)的步驟 主動語態(tài)改被動語態(tài) bell invented thetelephone in1876 was by 五 被動語態(tài)的時態(tài)表示被動語態(tài)的時態(tài)一般只通過be表現(xiàn) 過去分詞不變 例如 一般現(xiàn)在時 thetreesareplantedbythefarmers 一般過去時 thetreeswereplantedbythefarmers 現(xiàn)在進行時 thetreesarebeingplantedbythefarmers 一般將來時 thetreeswillbeplantedbythefarmers 現(xiàn)在完成時 thetreeshavebeenplantedbythefarmers 含情態(tài)動詞的被動語態(tài) thetreescan must should beplantedbythefarmers 六 被動語態(tài)的幾種句型 肯定句主語 be 過去分詞 by asweetsongwassungbyheronthestage 否定句主語 be not 過去分詞 by asweetsongwasn tsungbyheronthestage 一般疑問句be 主語 過去分詞 by wasasweetsongsungbyheronthestage 特殊疑問句疑問詞 be 主語 過去分詞 by wherewasasweetsongsungbyher theyproducedthatkindofcar theworkersbuiltabridgeovertheriver mothertellsmeastoryeveryday 請把下列主動句變?yōu)楸粍泳?thatkindofcarwasproducedbythem abridgewasbuiltbytheworkersovertheriver iamtoldastorybymothereveryday 1 thewomanaskedthepolicemanforhelp 2 theoldmanontvtellsastoryonsunday 3 dotheyusetheboxasatable 4 shesentmeacollectionlastweek 5 theteacherdoesn tteachusmaththisterm 練習(xí) 請把下列主動句變?yōu)楸粍泳?6 didlilybuyhersisterahat 7 weoftenhearhimplaythevi