Unit 4 Amazing scienceTopic 1 When was it invented?Section BTeaching AimsLearnthephrases:“beinventedbysb”and“beinventedin+year”TalkaboutsomeinventionsGuessing game!Guesstheinventions!Youcanjuststandupandsayoutyouranswer!Ifyouareright,youcanget1point.Whats this?Itismadeofplastic.Itisverysmallandyoucanputitinyourpocket.ItwasmadeinAmericain1973first.Itisusedforcommunicating.Youcanalsouseittocallyourfriends,listentomusic,playgamesandsoon.cellphoneWhats this?Itismadeofmetalandplastic.ItwasfirstmadeinAmericaaround1975.Whenwetravel,weusuallytakeitwithus.Itisusedtotakephotos.digitalcameraWhats this?Itisverythinandlight.ItwasfirstmadeinChinainHanDynasty（汉朝）（汉朝）.Itismadefromwood.Itisusedforwritingon.paperWhats this?Itismadeofmetalandglass.ItwasmadebyThomasEdisonfirst.Whentheroomisdark,wecanuseittomaketheroombright.lightbulb/blb/Do you know more about light bulb?I. Listen to 1a and choose the correct answer.()1.Whichobjectisnotmentionedintheconversation?A.Lightbulb.B.AirplaneC.Television.D.Radio.()2.HowmanythingsdidThomasEdisoninventduringhislife?A.Morethan2000B.Lessthan2000C.Morethan200D.Lessthan200()3.WhereareMichaelandJane?A.Inthesciencemuseum.B.Attheschoollibrary.C.Inthezoo.D.Inthepark.CAA1c Read 1a again and complete the table. Invention Inventor Year light bulb Guglielmo Marconi 1903radioairplaneThomasEdisonWilburandOrvilleWright18791895Readthedialogtogether!Can you get the information about light bulb now?Thelightbulb_bypeopleeverywheretoday.It_invented_1879.Itwasinvented_ThomasEdison._heinventedmorethantwothousandthingsduringhislife.iswidelyusedwasinbyItissaidthatII. Listen to the three passages of 3 and match the pictures with the information.Invention Inventor Year A. Karl Benz A. Karl Benz a. 1926 B. John Baird B. John Baird b. 1876 C. Alexander Graham Bell C. Alexander Graham Bell c. 1885 Makesentenceslikethese:ThephonewasinventedbyAlexanderGrahamBell.Itwasinventedin1876.beinventedby+sb被某人所发明被某人所发明beinventedin+year在某年被发明在某年被发明某物品是在某物品是在过去过去某个时间被发明的，所某个时间被发明的，所以通常会用：以通常会用：was/wereinventedSummaryDo you know anything about jeans?Jeans Jeans Inventionshavechangedourlivesalot.Letsgotoseeanotherinvention!III.Fillintheblankswiththeproperformsofthegivenwords. Thefirstjeanswereproducedin1855.Atthattime,they_(notcall)jeansandtheywerejusthard-wearingpantsdesignedforworkers.Thepants_(make)ofthebrowncloth.Thiskindofcloth_usually_(use)formakingtents.Nowadays,theirmaterialshavebeenchangedsothatitfeelsmorecomfortable.Andmanydifferentjeansstyles_also_(create).They_(design)notonlyforworkersbutalsoforteenagersandwomen.Laterjeansarepopularallovertheworld.were not calledwere madewasusedarecreatedare designed1.Lightbulbiswidely_peopletoday.A.usedbyB.usingbyC.usedofD.usedto2._thathehasstudiedabroadforfiveyears.A.ItissaidB.ItsaysC.ThatissaidD.Itwassaid3.Abigsupermarket_inourcitylastyear.A.isbuiltB.werebuiltC.wasbuiltD.hasbeenbuilt4.Itissaidthatpotatochips_bymistakeaboutonehundredyearsago.A.wereinventedB.inventedC.areinvented5.Wechat（微信）（微信）wasinvented_Tencent_2011.A.by,onB.in,byC.by,inC.on,by堂上小测堂上小测堂上小测堂上小测1.-HaveyouheardofthesongLittleApple?-Yes.It_everymorningwhenagedpeopledosquaredancingdownstairs.(2015年广东年广东)A.isplayedB.playsC.wasplayedD.played2.AlthoughFlightMH370hasbeenmissingformonths,Idobelieveit_somedayinthefuture.(2014年广东年广东)A.willfindB.wontfindC.willbefoundD.wontbefound3.It_lastweekthatthehaze(雾霾雾霾)inBeijingcausedmanyproblems.(2013年广东省年广东省)A.reportsB.reportedC.isreportedD.wasreported4.Hotwater_inthestudentsflatsfrom5pmto7pmnow.（2012年广东）年广东）A.suppliesB.issuppliedC.suppliedD.wassupplied5.Peoplewhodrinkwine_todriveafterMayDay.（2011年广东）年广东）A.dontallowB.isntallowedC.mustntallowD.mustntbeallowed6.The16thAsianGames_inGuangzhouinNovember,2010.（2010年广东）年广东）A.holdsB.willholdC.washeldD.willbeheld7.Heisverysurprisedthatallthehousesinthevillage_white.(2014年广州年广州)ApaintBpaintedCarepaintingDarepainted8.Icantunderstandwhatthebookisaboutbecauseit_inEnglish.(2013年梅州年梅州)AwritesBwillwriteCwillbewrittenDiswritten9.Anexpertteam_tostudyH7N9birdfluvirusinApril,2013.(2013年佛山年佛山)A.issetupB.wassetupC.hassetup10.Thechildwithoutparents_goodcareofbyhisteachersinthisspecialschool.(2013年梅州年梅州)A.istakenB.aretakenC.takeD.takesTalk and write Talkaboutanintroductionofaninvention.Youcanusetheinformationofthereviewhomework.（about50words）Tips:beinventedby/inbeusedfor/toWeChat iphoneTaobaolaptop LETS1.1.每个小组抽取一种发明进行描述，共有四每个小组抽取一种发明进行描述，共有四种发明，有两个小组会抽到同一种发明。种发明，有两个小组会抽到同一种发明。2.2.小组讨论之后，抽到相同发明物的小组进小组讨论之后，抽到相同发明物的小组进行行PK，用，用50个字来描述抽到的发明物，较个字来描述抽到的发明物，较好的一组得好的一组得10分，另外一组得分，另外一组得5分。分。Tips:beinventedby/inbeusedfor/toHomework 1.Finishtheguidingpaper.2.PreviewsectionC