Unit6SectionA1a-2c(课件)-人教版(2012)九年级英语全册.pptxVIP

Unit6SectionA1a-2c(课件)-人教版(2012)九年级英语全册.pptx

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Unit6Whenwasitinvented?SectionA1a-2c

TheFourGreatInventionsofAncientChinaCompassGunpowderPapermakingPrintingDoyouknowanymoderninventions?

Whowasitinventedby?ItwasinventedbyThomasEdison.AninventorabulbWhenwasitinvented?Itwasinventedin1879.

moderninventionsWhoweretheyinventedby?personalcomputerJohnAtanasoffCarlBenzAlexanderBellJ.L.Baird

moderninventionsWhoweretheyinventedby?personalcomputerWhereweretheyinvented?Whenweretheyinvented?

Whichonedoyouthinkwasinventedfirst/last?Numbertheinventions1-4,(1=first,4=last)Ithink...wasinventedafter/before...

Whatistherelationshipbetweenthem?Whataretheytalkingabout?Theyaregrandmaandgranddaughter.Theyaretalkingaboutinventions.Pre-listening

dacbCheck:A:Whenwasthecarinvented?B:Itwasinventedin…1bListenandmatchtheinventionswiththeyears.DoyourememberwhetherthegrandmotherhadaTV?

ListenagainTelephoneandcar.TVwasexpensiveandherfamilycouldntaffordit.Computerwasnotinventedwhengrandmawasakid.1.Whatdidgrandma’sfamilyusetohave?2.Whydidn’tgrandma’sfamilyhaveaTVorcomputerathome?

Wecouldn’taffordtobuyaTV.Underlinethestructurewith“bedone”P139-140bedesignedforusebyonlyonepersonatatimethefirstcomputer

InventionsYearsInventors1879ThomasEdison1971JohnAtanasoff1885KarlBenzaa1927J.L.Baird1876AlexanderBellA:Whenwasthecarinvented?B:Ithinkitwasinventedin1885.A:Whowasitinventedby?B:ItwasinventedbyKarlBenz.Pairwork

ChildrenInventionFair

heelsscooprunsonelectricityhigh-heeledshoeslow-heeledshoesflat-heeledshoes

Someinterestinginventions.Carolwenttoafairaboutinterestinginventions…

312Fristly,Iheard...Secondly,...Lastly,...

V.+ingn.V.+ingPredict

changinginthedarkservingA:Whatis/are...usedfor?B:...is/areusedfor...[v.ing]

定语从句Whyaretheytalkingabouttheseinventions?Whyaretheseinventionsspecial?

A:What’s/a

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