unit-9-when-was-it-invented81402市公开课一等奖课件名师大赛获奖课件.pptx

unit-9-when-was-it-invented81402市公开课一等奖课件名师大赛获奖课件.pptx

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Whenwasitinvented?Unit9SectionA

computer私人电脑笔记本电脑personalcomputernotebookcomputer

carBenz(飞驰)

telephone手机:mobilephonecellphone

TVtelevision

年份的读法两个数字一组,分为前后两组121865eighteensixtyfive1989千年的读法twothousand2001twothousandandonenineteeneightynine

3前两个数字不为零,后两个数字为零。eighteenhundred1900nineteenhundred4非四位数的年份的读法!531fivehundredandthirty-one

__1876__1885__1927__1976carcomputertelephonetelevisionWhenwasitinvented?_______wasinventedin_______

lightbulbs(1879)Guessing:Whatisit?Edison

A:Whenwerethelightbulbsinvented?B:Thelightbulbswereinventedin1879A:Whowerethelightbulbsinventedby?B:ThelightbulbswereinventedbyEdisonWhataretheyusedfor?Theyareusedforgivinglight

ItisusedforcookingandheatingfoodWhatistheMicrowaveovenusedfor?A:WhenwastheMicrowaveoveninvented?B:TheMicrowaveovenwasinventedin1947A:WhowastheMicrowaveoveninventedby?B:Itwasinventedbyspencer

Guessing:Whatisit?Calculator(1971)Itisusedforcounting.Whatisitusedfor?

Whatarethese?battery-operatedslippersJulieThompsonheatedicecreamscoopChelseaLanmonshoeswithadjustableheelsJayceCoziarandJamieEllsworth

Whatis/are…usedfor?TheyareusedforseeinginthedarkItisusedforscoopingreallycoldicecreamTheyareusedforchangingthestyleoftheshoes

Whatdoyouthinkisthemosthelpfulinventions?

A:Whatdoyouthinkisthemosthelpfulinvention?B:IthinkthemosthelpfulinventionisthelightbulbA:Whyisthat?B:Well,itgivespeoplemoretimetoworkandplayeveryday.3bPairwork

gunpowderpapermakingprintingcompassFourgreatinventionsofancientChina

Classisover!

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