初中九年級英語課件Unit When was it invented

Unit6Whenwasitinvented?SectionA1A—2d人教版九年級英語Lookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?

A:IthinktheTVwasinventedbeforethecar.B:Ithink…….abcd1876____1885____1927____1971____cbdaListenandmatchtheinventionswiththeyears.Changetherolesandpractice.A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.一般過去時的被動語態(tài):1.肯定式主語+

waswere+及物動詞的過去分詞+by.2.疑問句WasWere+主語+及物動詞的過去分詞。

Rewritethesesentencesusingthepassivevoice.1.Someonestolemywatch._____________________________.2.Whendidtheyinventthepersonalcomputer?________________________________________.3.Ourteacheraskedusnottotalkinclass._________________________________________.4.ThomasEdisoninventedthelightbulb..Mywatchwasstolenbysomeone.Whenwasthepersonalcomputerinvented?Wewereaskednottotalkinclass.ThelightbulbwasinventedbyThomasEdison.6:Columbusdiscoveredthenewworld.

ThenewworldwasdiscoveredbyColumbus.5.TheytookmanyphotosontheGreatWalllastyear.ManyphotosweretakenontheGreatWalllastyearbythem.ThomasEdisonisagreat_______,He_______manythingsinhislife,Thelightbulbishisgreat_______.Listenandlookattheseinterestinginventions.Doyouthinkwhattheyareusedfor?Whataretheshoeswithlightsusedfor?Ithinkthey________________________.inventorinventedinventionareusedforseeinginthedark

Whataretheshoeswithspecialheelsusedfor?Ithinktheyareusedforchangingthestyleofyourheelsandusedforraisingorloweringtheheels.Whatisthehotice-creamscoopusedfor?Ithink___________________________________.itisusedforservingreallycoldice-cream.

HeyRoy,thesubjectformyschoolis''Smallinventionsthatchanggdtheworld”.Canyouhelpmethinkofaninvention?Withpleasure!TheZipper!Paul;Roy;Isitreallysuchagreatinvention?Thinkabouthowoftenitisusedinourdailylives.youcanseezippersondresses,trousersshoes,bags…almosteverywhere.

Paul;Roy;youdoseemtohaveapoint…Ofcourse!IthoughtaboutitbecauseIsawawebsitelastweek.Thepoineersofdifferentinventionswerelistedthere.ForexampleitmentionedthatthezipperwasinventedbyWhitcombJudsonin1893.Butatthattime,itwasn’tusedwidely.Paul;Sowhendiditbecomepopular?Roy;Around1917.Paul;Roy;Dothefollowingexerises.1.Theblenderisusedfor______(make)bananamilkshake.

makingwasinventeddailyWhowasinventedbyWhatareused3.Electricityisbecomingmoreandmoreimportantinour

（day)lives.4.PaperwasinventedbyCaiLun.(對劃線部分提問)

paper