九年级英语上册 Unit 4 Topic 1 When was it invented Section B课件 （新版）仁爱版.ppt

Unit4AmazingScience Topic2Whenwasitinvented SectionB Greatinventionsmakeourlifecolorful Pleasechooseonetotalkabout EnglishLearningMachine Around2005 BeijingRen aiEducationInstitute learnEnglish digitalcamera 1975 America takephotos MP3player 1998 Korea listentomusic mobilephone 1973 America communicateeasily Sciencemakeourworldwonderful Michael JaneandtheirclassmatesarevisitingtheScienceMuseum Look alightbulb Whenwasitinvented Whowastheinventor Listenandanswerthequestions In1987 byThomasEdison Read1aandfilloutthetable Radio Airplane ThomasEdison WilburandOrvilleWright 1879 1895 重点词 组 和句型1 inourdailylifeinoureverydaylife2 inventv inventorn inventionn Theinventorsinventedmanygreatinventions 3 It ssaid reportedthat clause 4 duringone slifeinone slife invent America in1946 A Wherewerecomputersinvented B TheywereinventedinAmerica A Whenwerecomputersinvented B Theywereinventedin1946 Lookandtalkaboutthepicture Pairwork Makeupdialogsaftertheexample Shenzhou lauch inChina in2008 PiratesoftheCaribbeandirect byGoreVerbinski in2006 laptop invent inJapan in1985 Knowsomethingaboutscience Cloning afamousexperiment theclonedsheep wascreatedinScotlandafewyearsago theclonedmice theclonedcows theclonedpigs theclonedanimals Listenandanswerthequestions 1 What sthenameoftheclonedsheep Dolly 2 Whatanimalshavethescientistsclonednow Sheep rabbits cows mice pigsandsomeotheranimals 3 Whatisusedincloning DNA 4 IsyourDNAsimilartoyourparents Yes itis 5 Whatdoesthewriterwanttoclone Whatdoyouwanttoclone Why 3b Groupwork Read3aagainanddiscussthefollowingquestions 1 WhoisDollyandwhatisusedincloning 2 Whataretheadvantagesanddisadvantagesofcloning 1 Theclonedsheep Dolly wasclonedinCanada 2 Scientistshaveclonedpigs 3 EverypartofourbodyhasdifferentDNA 4 ThereisDNAinalllivingthings Read3aandmarkthestatementsTrue T orFalse F T T F F 1 DoyouknowaboutDolly theclonedsheep IamgoingtobuyacarmadeinChina 4 besimilarto与 相似thesame as as as与 一样 疑难解答 2 DNA脱氧核糖核酸DNAfingerprintingDNA指纹鉴定 Retellthepassage Wouldyouliketosaysomethingaboutthefamousexperiment CloningDolly createdinScotlandotherclonedanimalsDNAthesameasbesimilartoexactlythesame InventorYearA KarlBenza 1925B JohnBairdb 1876C AlexanderGrahamBellc 1885 Listentothetape choosethecorrectanswersandfillintheblanks A C B c b a 当堂检测一 词组互译 1 科技博物馆 6 Itissaidthat 2 在日常生活中 7 thesameas 3 与 不同 8 besimilarto 4 迄今为止 9 duringone slife 5 从 中克隆的 10 bemadeinto 二 选择合适短语填空 并注意其适当形式 bedifferentfrom takephotos besimilarto sofar thesame as 1 TheweatherintheUSA thatinAustralia 2 Thestudenthasmade mistakes hedidlasttime 3 Digitalcameraisusedfor moreandmoreteenagersinAmericahaveshowedgreatinterestinlearningChinese 5 GroupThree sopinions ours aresimilarto thesame as takingphotos isdifferentfrom Sofar 三 用所给词的适当形式填空 1 Itwasusedinour study day 2 Theairplaneisdifferentfrom today 3 Ithinkthefilmwas byZhangYimouin1998 direct 4 Edison anAmerican createdmanythings invent 5 Sofar theyhave manyanimals clone 6 Shenzhou launch in2005 daily today s inventor cloned directed waslaunched 四 根据句意及首字母提示写出单词 1 GuglielmoMarconiisthei oftheradio 2 Thiskindofmachineisw usedforharvestinginthecountryside 3 Nowadaysmoreandmorepeopleusemobilephonestoc witheachother 4 Shakespearec manyfamouscharacters suchasHamlet Romeo Julietandsoon 5 Thegovernmentistryingoutanewe incityplanning 6 Yourviewsoneducationares tomine nventor ommunicate reated xperiment imilar idely Homework Makeasurveyaboutwhatyourclassmateswanttocloneandreporttoyourclass Bye