unit9(grade9)

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1、Unit9Whenwasitinvented?银川市回民中学朱晓岩Whatarethey?TheyarefourinventionsofChinagunpowderpapermakingprintingcompassMakealistofinventionsyouknow.Sample1:Challengeyourself(自我挑战)Whatisit?TrytoguessWhatisit?Whatisit?Hereisaboxwithabeautifulglassface.Youcanseeplaysandprogramsonit.Hereisabox

2、withabeautifulglassface.ItlookslikeaTV,butitisn’t.Itcanhelpyouworkandstudy.Whatisit?Thislittlethinghasnumberonit.ItisSmallbutitcanhelpyouworkoutmathproblems.Whatisit?calculator['kælkjuleitə]Ithasaroundface,Ithasthreehands.Ifyoudon’tknowtime,youwilllookatit.Whatisit?Hereisabigbox

3、.Itcanmakeyourclothescleanandyourhouseworkeasy.Withitshelpyoucanhavemoretimetorelaxortowork.Whatisit?WashingmachineHereisabox.Youcanuseittocookmanykindsofdeliciousfood,suchasfish,chicken,meatandrice.Youcanalsouseittomakecolddishandfoodhotinafewminutes.Whatisit?microwaveovenWhati

4、sit?ItisoneofthefourChineseinventions,Itcanmakepaper,ItwasinventedbyCaiLong.papermakingThomasEdison(1847－1931)ThomasEdisonwasagreatAmericaninventor.Heinventedmorethan1000inventionsduringhislifetime.lightbulbinventionEdisoninventorEdisoninventedthelightbulb.Thelightbulbwasinvent

5、edbyEdison.Bellinventedthetelephone.ThetelephonewasinventedbyBell.Bellinventedthetelephonein1876.Thetelephonewasinventedin1876.被动语态Benzinventedthecar.ThecarwasinventedbyBenz.Whenwasthecarinvented?Thecarwasinventedin1885.KarlBenz18851b:listenandmatchtheinventionsandthedates._____

6、1876_____1885_____1927_____1971_____1976daecbThetelephonewasinventedin1876.Thecarwasinventedin1885.Whenwas…invented?Sample3:B:PairworkA:Whenwasthe________invented?B:Ithinkitwasinventedin______.18761976188519271971A:What’situsedfor?B:It’susedfortalkingwithpeople.beusedfordoing“被用

7、来做….”workingtellingthepeopletimetakingphotosdrinkingwaterWhatis/are…inEnglish?Whatis/are…usedfor?It’s/They’reusedfor…pairworkWritingtimeinventoruse1862Harrisonkeepfoodfresh1858SmithwashclothesThe….wasinventedin______.Itwasinventedby_______.Itisusedfor_______.washingmachinefridge

8、Summary:*Whenwasitinvented?Itwasinventedin….*Wh