2023學(xué)年完整公開課版九年級英語Whenwasitinvented4

Unit4Whenwasitinvented?SectionA(1a-2c)歐陽生炳Talkaboutthehistoryofinventions.Thepassivevoice.LanguageGoals:GrammarFocus:Whatisthis?Whenwasitinvented?Itwasinventedin1885.carWhatarethese?Whenweretheyinvented?computerTV197619271bListenandmatchtheinventionswiththedates.abedc18761885192719711976dabec1cPAIRWORK1cPAIRWORKWhenwasthetelephoneinvented?Ithinkitwasinventedin1876.Whatarethey?battery-operatedslippersWhataretheyusedfor?seeinginthedarkWhoweretheyinventedby?JulieThompsonWhatarethey?ShoeswithadjustableheelsWhataretheyusedfor?ChangingthestyleoftheshoesWhoweretheyinventedby?JayceCoziarandJamieEllsworthWhatisthis?heatedicecreamscoopWhatisitusedfor?scoopingreallycoldicecreamWhowasitinventedby?ChelseaLanmon2aListenandnumbertheinventionsintheorderthatyouhear.312InventionWhowasit/weretheyinventedby?Whatisis/aretheyusedfor?shoeswithadjustableheelsChelseaLanmonscoopingreallycoldicecreambattery-operatedslippers

JayceCoziarandJamieEllsworthseeinginthedarkheatedicecreamscoopJulieThompsomchangingthestyleoftheshoesListenagain.Matchtheinventionswiththeirinventorsanduses.2bThepassivevoice.被動語態(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.被動語態(tài)的構(gòu)成:助動詞be+

(及物動詞的)

過去分詞

一般現(xiàn)在時一般過去時am(is,are)+donewas(were)+done{Thepassivevoice.被動語態(tài)主動語態(tài)變?yōu)楸粍诱Z態(tài)的步驟:把原主動句中的賓語轉(zhuǎn)換為被動語態(tài)的主語.2.把動詞改為被動形式,即“be+過去分詞”

.注意be動詞要按新的主語的人稱和數(shù)進行變化,時態(tài)要和原來的主動語態(tài)的時態(tài)保持一致.3.原來主動語態(tài)句中的主語,如果需要,就放在by后面以它的賓格形式出現(xiàn).如果沒有必要就可以省略.其他的成分(定語,狀語)不變,句式也不能變.Thepassivevoice.被動語態(tài)主動語態(tài)變被動語態(tài)的結(jié)構(gòu)圖:Bellinventedthetelephonein1876.ThetelephonewasinventedbyBellin1876.

主語謂語動詞過去時賓語時間狀語主語謂語動詞的過去分詞賓語時間狀語Thepassivevoice.被動語態(tài)主動語態(tài)改被動語態(tài):Bellinvented

thetelephonein1876.wasbySurftheInternet,andfindoutmoreinventions.Introducethemtoyourclassm