九年级英语 unit9 When was it invented sectionA(3a4) 课件 人教新目标版.ppt

unit9whenwasitinvented periodtwo sectiona 3a 4 whatisit whatisitusedfor callsbup it susedforcallingsbup telephone1876 whatarethey whataretheyusedfor seeinthedark they reusedforseeinginthedark battery operatedsleepers lastyear whatisit whatisitusedfor scoopreallycoldicecream itisusedforscoopingreallycoldicecream heatedicecreamscoop afewyearsago whatisit whatisitusedfor tellthetime itisusedfortellingthetime 1788alarmclock whatisit 1946microwaveoven whatisitusedfor heatcoldfood it susedforheatingcoldfood whatarethey whataretheyusedfor theyareusedforgivinglight 1879lightbulbs howmanyotherinventionsdoyouknow puter2 3 4 newinventionsareinventedallthetime inventionshavechangedourlivesalot mostoftheinventionsarehelpfulorinteresting butsomeofthemareannoying forexample ithinkthelightbulbishelpful butthealarmclockisannoying a whatdoyouthinkishelpful annoying b ithink helpful annoying pairwork 3a 3a makealistoffivehelpfulinventionsandfiveannoyinginventions plane carcameralightbulbpaper elevatorcomputer radio mobilephonetruckcomputergamesjunkfoodcigarette 3bwhatdoyouthinkisthemosthelpful annoying 令人恼怒的 invention plane carcameralightbulbpaper elevatorcomputer radio mobilephonetruckcomputergamesjunkfoodcigarette usefulexpressions a whatdoyouthinkisthemosthelpful annoyinginvention b ithinkthemosthelpful annoyinginventionis a whyisthat b well itgives helpspeople doyouthinkthecomputeristhemosthelpfulorannoyinginvention 辩论 debate ithinkthe isthemosthelpfulinventionbecauseit itwasinventedin itwasinventedby ithink the isthemostannoyinginventionbecause conclusion imaginethatyouarealoneonatiny 小的 island ifyoucanonlytakefiveinventions whatwouldyoutake why imaginethatyouarealoneonatinyisland choosefiveinventionsyouwouldliketohaveontheislandwithyou tellthegroupoffourwhatyouchoseandwhy thengiveareport groupwork a i dliketohavearadiobecauseicouldlistentomusicallday b yes butit snotgoingtohelpyouleavetheisland ithinkitwouldbebettertohave knife flashlight gun sampledialogue a i dliketohavearadiobecauseicouldlistentomusicallday b yes butthat snotgoingtohelpyouleavetheisland ithinkitwouldbebettertohaveaboat thenyoucanleavetheislandbyboat a maybeyouareright groupwork 4 p70 thengiveareportlikethis inourgroup wouldliketohavearadiobecausehecouldlistentomusic but thinksitwouldbebettertohavelotsoffood thenhecanhavesomethingstoeatbeforepeoplecometosavehim 汉译英 1 计算机是何时发明的 2 谁发明了电灯 3 计算器是用来做什么 4 你认为什么是最有用的发明 5 每天它能够给人们更多时间工作和玩 1 whenwasthecomputerinvented 2 whowasthelightbulbinventedby 3 what sthecalculatorusedfor 4 whatdoyouthinkisthemosthelpfulinvention 5 itgives