英語(yǔ)九年級(jí)上冊(cè)Unit6Whenwasitinvented新建PPT演示文稿

WhataretheFourGreatInventionsinancientChina?Whoinventedthem?（inventors)Talking

paper-makingprintingcompassgunpowderCaiLunBiShengancientworkersancientalchemists(煉丹家)Paper-makingwasinventedbyCaiLun.ReadandLearnmore:Paper-makingwasinvented

byCaiLunintheWesternHanDynasty（西漢）.PrintingwasinventedinTangDynasty,butMovableTypePrinting

（活字印刷術(shù)）wasinventedbyBiShenginSongDynasty.ThecompasswasinventedbyancientworkersintheWarringStatesPeriod（戰(zhàn)國(guó)）.Gunpowderwasinventedbyancientalchemists(煉金術(shù)師）intheEasternJinDynasty(東晉）.WeChineseareverywiseandcreative!Whatcanyouseeinthepicture?cartelephone

computerTVIcanseea...Inwhatorderdoyouthinktheywereinvented?1234Thennumberthem[1—4](1=first,4=last).Guess

FreetalkIthink...wasinvented

before/after...cartelephone

computerTV1aWhichonewasinventedfirstly/lastly?Listenandmatchtheinventionswiththeyear.______1876______1885______1927______1971dacb1b1876：eighteenseventy-six1885:eighteeneighty-five1927:nineteentwenty-seven1971:nineteenseventy-onewho?what?聽力原文一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)：was/were+V-edPayattentiontothefollowingunderlinedparts.

StudentB,coverthedates.StudentA,askStudentBwhenthethingsinthepicturein1bwereinvented.Thenchangerolesandpracticeagain.1cWhenwasthe…invented?Ithinkitwasinventedin….

Edison

invented

thelightbulb.Thelightbulb

wasinvented

byEdison.主語(yǔ)謂語(yǔ)動(dòng)詞主動(dòng)語(yǔ)態(tài)(過(guò)去時(shí))賓語(yǔ)主語(yǔ)謂語(yǔ)動(dòng)詞被動(dòng)語(yǔ)態(tài)(be+V-ed)介詞+賓語(yǔ)Howtochangetheactivevoiceintopassivevoice?◆主動(dòng)語(yǔ)態(tài)變被動(dòng)語(yǔ)態(tài)的方法①主動(dòng)語(yǔ)態(tài)的主語(yǔ)變成by引導(dǎo)的介詞短語(yǔ)放在主謂結(jié)構(gòu)后面，有時(shí)可以省略。②主動(dòng)語(yǔ)態(tài)的謂語(yǔ)動(dòng)詞變成“was/were+及物V-ed”形式。③主動(dòng)語(yǔ)態(tài)的賓語(yǔ)變成被動(dòng)語(yǔ)態(tài)的主語(yǔ)。一般過(guò)去時(shí)被動(dòng)語(yǔ)態(tài)的幾種句型1.肯定句:主語(yǔ)+was/were+V-ed+(by…)Thenewswaspublishedbythegovernment.2.否定句:主語(yǔ)+was/were+not+V-ed

+(by…)3.一般疑問(wèn)句:Was/Were+主語(yǔ)+V-ed

+(by…)?Thenewswasn’tpublishedbythegovernment.Wasthenewspublishedbythegovernment?特殊疑問(wèn)句:

疑問(wèn)詞

+was/were+主語(yǔ)+V-ed

+(by…)?Whenwasthenewspublishedbythegovernment?Rewritethesentencesusingthepassivevoice.1.Theysoldthefridgeatalowprice.Thefridgewassoldatalowprice.2.Somebodystolemycamerafrommyhotelroom.3.Wheredidyoutakethesephotos?Mycamerawasstolenfrommyhotelroom.Wherewerethesephotostaken?4.Ourparentsadvisedusnottogooutalone.5.Differentwriterstranslatedthebookintodifferentlang