英语人教版九年级全册unit6 when was it invented .ppt

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1、SectionAUnit6Whenwasitinvented?Challengeyourself(自我挑战)Whatisit?TrytoguessWhatisit?Whatisit?Hereisaboxwithabeautifulglassface.Youcanseeplaysandprogramsonit.Hereisaboxwithabeautifulglassface.ItlookslikeaTV,butitisn’t.Itcanhelpyouworkandstudy.Whatisit?Thislittlethingha

2、snumberonit.ItisSmallbutitcanhelpyouworkoutmathproblems.Whatisit?calculator['kælkjuleitə]Ithasaroundface,Ithasthreehands.Ifyoudon’tknowtime,youwilllookatit.Whatisit?Hereisabigbox.Itcanmakeyourclothescleanandyourhouseworkeasy.Withitshelpyoucanhavemoretimetorelaxortow

3、ork.Whatisit?WashingmachineHereisabox.Youcanuseittocookmanykindsofdeliciousfood,suchasfish,chicken,meatandrice.Youcanalsouseittomakecolddishandfoodhotinafewminutes.Whatisit?microwaveovenWhatisit?ItisoneofthefourChineseinventions,Itcanmakepaper,ItwasinventedbyCaiLong

4、.papermakingThomasEdison(1847－1931)ThomasEdisonwasagreatAmericaninventor.Heinventedmorethan1000inventionsduringhislifetime.(发明家n.)(发明n.)(发明v.)lightbulbinventionEdisoninventorEdisoninventedthelightbulb.ThelightbulbwasinventedbyEdison.Bellinventedthetelephone.Thetele

5、phonewasinventedbyBell.Bellinventedthetelephonein1876.Thetelephonewasinventedin1876.被动语态Bellinventedthetelephonein1876.ThetelephonewasinventedbyBellin1876.Thepassivevoice.被动语态主动语态变被动语态的结构图:主语　谓语动词过去式宾语　时间状语主语　谓语动词的过去分词宾语　时间状语Benzinventedthecar.ThecarwasinventedbyBen

6、z.Whenwasthecarinvented?Thecarwasinventedin1885.KarlBenz1885calculatorItwasinventedin1971.Whenwasthecalculatorinvented?1971Listening1b:*Listenandmatchtheinventionswiththedates.a18761885192719711976bcdePairworkA:Whenwasthe________invented?B:Ithinkitwasinventedin_____

7、_.18761976188519271971A:What’situsedfor?B:It’susedfortalkingwithpeople.beusedfordoing“被用来做….”workingtellingthepeopletimetakingphotosdrinkingwaterWhataretheyusedfor?Theyareusedforopeningandlockingadoor.Whataretheyusedfor?Theyareusedforeating.Whatis/are…inEnglish?What

8、is/are…usedfor?It’s/They’reusedfor…pairworkWritingtimeinventoruse1862Harrisonkeepfoodfresh1858SmithwashclothesThe….wasinventedin______.Itw