仁爱版英语九年级上册Unit4-Topic2-SectionB课件

Unit4

Topic2

Whenwasitinvented?SectionBmobilephoneinvent\in1973\inAmerica\communicateLookatthepicture,thenmakeaconversationwithyourparter.看图，然后和同伴组成对话

alightbulb

Whoinventedit?=Whowasitinventedby?

ThomasEdison.It’ssaidthatEdisoninventedmorethanonethousandthingsduringhislife.It’ssaidthat+宾语从句据说…Doyouknowwhentheywereinvented?Whoinventedthem?Nowlet’slistentoaconversation.Listentothethreepassages,matchthepictureswiththefollowinginformation.InventionInventorA.KarlBenzB.JohnBairdC.AlexanderGrahamBellYeara.1926b.1876c.1885ShenzhouⅦlaunch\inChina\in2008

WhenwasShenzhouⅦ

launched?ItwaslaunchedinChina.Wherewasitlaunched?Itwaslaunchedin2008.

laptopsInvent/inJapan/in1985Example:Whatarethese?Theyarelaptops.Whereweretheyinvented?TheywereinventedinJapan.Whenweretheyinvented?Theywereinventedin1985.PiratesoftheCaribbeandirect/byGoreVerbinski/in2006A:_________________________________?B:ItwasdirectedbyGoreVerbinski.A:__________________________________?B:Itwasdirectedin2006.

Completetheconversation.补全对话WhodirectedPiratesoftheCaribbean?\WhowasPiratesoftheCaribbeandirectedbyWhenwasitdirected?Whataretheydoing?Theyaredoingan

experiment.

实验

aclonedsheep

ShewascreatedinScotland(苏格兰)afewyearsago.Cloningisknownasafamousexperimentthroughouttheworld.Clone:克隆动词的过去分词，作定语修饰名词。一只被克隆的羊theclonedmicetheclonedcowstheclonedpigstheclonedanimalsCloningcanbenefit(使受益,对某人有用)humanbeingsandthesociety.Thecloningtechnologyhasbeenusedinhumanorgans(器官).Withitshelp,scientistscanexploremorewaystotreatmanyseriousdiseasessuchasheartdiseases,AIDS(艾滋病)andcancer.

Nowlet’slistentothepassage,andknowsomethingmoreaboutcloning.3bGroupworkListento3aagainanddiscussthefollowingquestions.1.WhoisDolly

？2.Whatisusedincloning?3.IsyourDNAsimilartoyourparents’?

Sheisaclonedsheep.DNA.Yes.()1.Theclonedsheep,Dolly,wasclonedinCanada.()2.Scientistshaveclonedpigs.()3.EverypartofourbodyhasdifferentDNA.()4.ThereisDNAinalllivingthings.()5.Dolly’sDNAissimilartothesheepthatshewasclondfrom.()6.Cloningcanbenefitus.Ithasnodisadvantages.Read3aandmarkthestatementsTrue(T)orFalse(F).TTFFFFthesamethesameItmayharmsociety.Itmustbeusedproperly.Let'shaveatryScotland

1.Newwords.2.一般过去时的被动语态：

谓语结构：was\were+及物动词的过去分词Example：Whenwasitinvented\lauched\directed\made?Wherewerelaptopsinvented?Whowasitinventedby?=Whoinventedit?Sumup直击中考()1.---Whoisthelittlebabyinthephoto,Lucy?---It’sme.Thisphoto______tenyearsago.(2008北京)A.takesB.istakenC.tookD.wastaken()2.Thetelephone_____byBellin1876.(2008吉林)A.inventB.wasinventedC.wasinventingD.invents()3.Lastyear,LiHua,acollegestudent,_____toworkfortheOlympicGames.(2008河北)Awaschosen.B.ischosenC.waschoosingD.ischoosing()4.---HowmanycakescanIhave?---None,dear.They___foryoufather.(2008江西)A.prepareB.preparedC.havepreparedD.werepreparedDBADPassivevoicewasalsoused

Inourdailylife.Canyouusethepassivevoicetodesignasituationthathappensinourlife.在我们的生活中，被动语态也被经常使用。你能使用被动语态设计一个我们生活中的情景吗？ProjectWorkingroup,discusstheadvantagesanddisadvantagesofcloningtechnology.Thenonestudentofeachgroupreportthemnextclass.

Advantages

Disadvantages.Sciencemakeso