Unit6Whenwasitinvented?WhataretheFourGreatInventionsinancientChina?Doyouknow?paper-making造纸术compass指南针printing印刷术gunpowder火药造纸术印刷术carWhat’sthiscalledinEnglish?televisiontelephonecomputercalculatormicrowaveovenlightbulbbatteryLookatthethings.Inwhatorderdoyouthinktheywereinvented?A:Ithinkthecalculatorwasinventedbeforethecomputer.B:Well,Ithinkthecalculatorwasinventedafterthecomputer.ThecarwasinventedbeforetheTVset.A:Ithink…wasinventedbefore…B:Well,Ithink…wasinventedafter….ThetelephonewasinventedbeforetheTVset.A:Ithink…wasinventedbefore…B:Well,Ithink…wasinventedafter….Thetelephonewasinventedbeforethecomputer.A:Ithink…wasinventedbefore…B:Well,Ithink…wasinventedafter….TolearntounderstandandusepassivevoiceTolistenandspeakaboutthehistoryofinventionsusingpassivevoiceTolistenandspeakaboutwhatinventionswereusedforusingpassivevoice1aLookatthethingsbelow.Inwhatorderdoyouthinktheywereinvented?Discussthemwithyourgroup.Thennumberthem[1–4](1=first,4=last).A:IthinktheTVwasinventedbeforethecar.B:Well,IthinktheTVwasinventedafterthecar.42131bListenandmatchtheinventionswiththeyears.____1876____1885____1927____1976dacb1cStudentB,coverthedates.StudentA,askStudentBwhenthethingsinthepicturein1bwereinvented.Thenchangerolesandpracticeagain.A:Whenwasthetelephoneinvented?B:Ithinkitwasinventedin1876.cWhenwasthecomputerinvented?Letmesee…2aListenandnumbertheinventions[1–3]intheorderyouhearthem.2132bListenagainandmatchtheitemswiththeirinventorsanduses.InventionWhatisit/aretheyusedfor?shoeswithspecialheels_________thestyleoftheshoesshoeswithlightsseeing_____________hotice-creamscoop________reallycoldice-creamchanginginthedarkserving2cMakeconversationsusingtheinformationin2b.A:Whataretheyusedfor?B:They’reusedforseeinginthedark.Paul:HeyRoy,thesubjectformyschoolprojectis“Smallinventionsthatchangedtheworld.”Canyouhelpmethinkofaninvention?Roy:Mypleasure!Letmethink...hmm...Iknow!Thezipper!Paul:Thezipper?Isitreallysuchagreatinvention?Roy:Thinkabouthowoftenit’susedinour2dRole-playtheconversation.dailylives.Youcanseezippersondresses,trousers,shoes,bags...almosteverywhere!Paul:Well,youdoseemtohaveapoint...Roy:Ofcourse!IthoughtaboutitbecauseIsawawebsitelastweek.Thepioneersofdifferentinventionswerelistedthere.Forexample,itmentionedthatthezipperwasinventedbyWhitcombJudsonin1893.Butatthattime,itwasn’tusedwidely.Paul:Really?Sowhendiditbecomepopular?Roy:Around1917.HeyRoy…Explanations1.thestyleoftheshoes鞋子的款式(1)style名词，意为“样式；款式”。其常用短语instyle意为“时髦的”，其反义短语为outofstyle,意为“过时的”。►Thisyear'sstyleindressesisdifferentfromlastyear’s.今年的服装样式与去年的不同。►Herclothesarealwaysinstyle.她的衣服总是很时髦。(2)style作名词，还可意为“方式”。►Ourchildrenneednewlearningstyles.我们的孩子需要新的学习方式。►Ilikeyourstyle.我喜欢你做事的方式。2.Mypleasure!非常愿意！pleasure(astateoffeelingorbeinghappy)名词，意为“高兴;愉快”。►Hetakesnopleasureinhiswork.他从工作中得不到丝毫的乐趣。►—Thanksforhelpingme.谢谢你帮助了我。—Mypleasure./Itsapleasure.别客气。pleasure名词，“高兴；愉快”。常用短语Mypleasure./Withpleasure./It’sapleasure.pleased形容词，“高兴的”，短语bepleasedtodosth.“乐于做某事”；bepleasedwith“对……满意”，句子的主语通常为人pleasant形容词，“令人愉快的”，可作定语、表语，修饰物►Iampleasedwiththepainting.我对这幅画很满意。►Wishyoua...
