北师大版高中英语选修7课件： Unit 20 Lesson 3.ppt

unit20 unit20newfrontiers lesson3scientificbreakthroughs warm up aquiz guesswhoheis isaacnewton 1642 1727 britishphysicalscientist astronomerandmathematician borninlincolnshire heprovedthetheoryofgravitytobetrue heinventedanadvancedsteamenginewhichwasthelaststrawofthefirstindustryrevolutioninwesterncountries hewastheinventoroftelephone bell alexandergraham amongtheseveralimportantdiscoveriesmadeinhislife thegreatestisthecreationofhisfamoustheoryofrelativity healsodiscoveredfamousmathematicalstatemente mc energyequalsmasstimesthespeedoflightsquared alberteinstein ondecember17th 1903 theymadetheworld sfirstflightinamachinethatwasheavierthanairandpoweredbyanengine wrightbrothers oneofthefirstaircraft beforeyoustart 1 doyouknowthemajordiscoveriesofthescientistsinthepictures ecertandmauchly producingtheworld sfirstcomputer alberteinstein establishingthe e mc equationandthe theoryofrelativity discoveringpenicillin alexanderfleming edwinhubble discoveringothergalaxieslikeourown 1 e mc22 penicillin3 thefirstcomputer4 othergalaxies a scientistsworkedtogetherasateamb therewasaluckyaccidentc ascientistdidresearchformanyyearsd ascientistwasinspired 2 trytomatchthediscoveriesorinventions 1 4 withhowtheycameabout a d 3 readthetextandcheckyourguessesfromexercisesiand2 readtolearn thepurposeofthisarticleis a theintroductionofthewrightbrothersb theintroductionoftheprocessofscientificbreakthroughc introductionofthemajorscientificdiscoveriesinthe20thcenturyd thecontributionsscientistsmadetotheworld 1 einsteinwasatworkwhenhethoughtoftheequation e mc2 careful reading f 4 arethesestatementstrueorfalseaccordingtothetextoristherenoinformation 2 einsteinparticipatedintheprogramthatdevelopedthenuclearbomb 3 einsteinobservedchangesintime sizeandmass ni t 4 hubblestudiedtheuniverseforovertwentyyears 5 hubblediscoveredthatourgalaxyisbiggerthanwethoughtitwas ni f 6 fleminghadbeenstudyingbacteriainhislaboratorywhenthediscoveryhappened 7 therewasabluemouldaroundthebacteriainthedish f f 8 flemingdevelopedtheprocessformakingpenicillin 9 thefirstcomputerprojectfailedtomeetitsoriginalgoal 10 thefirstcomputerwasextremelydifficulttoprogram ni ni t 11 thescientistswhodiscoveredmicrowavesinventedmicrowaveovens 12 todayitispossibletodonateyourhearttohospitalwhenyoudie ni t languagepoints 1 ifyouhadtochoosethesinglemostimportantdiscoveryofthe20thcentury youwouldhavearealdilemma 如果要选择20世纪最重要的发现 你将会面对一个真正的难题 dilemman 困境 进退两难的窘境e g i minadilemmaaboutthisjoboffer 对于提供的这份工作我不知道是接受还是不接受 manysingleparentsstrugglewiththedilemmaofdividingtimebetweenworkandchildren 许多单身父母在是把时间分配给工作还是孩子的窘境中挣扎着 2 medicaladvancesrangedfromdiscoveringthecausesofdiseasesundermicroscopestosurgicalproceduresreplacingdiseasedorganswithdonatedones 医学的进步包括从显微镜下发现疾病的起因到用捐赠器官替代病变器官这样的外科手术过程 rangefrom处于某范围内 在某范围内变化e g theshowhadamassiveaudience rangingfromchildrentograndparents 这场演出有众多的观众 从老人到孩子 donatevt 捐赠 捐献 尤指钱 e g lastyearhedonated 1 000tocancerresearch 去年他为癌症研究捐款1000美元 thebooksweredonatedbyalocalpublishingcompany 这些书是当地一家出版公司捐赠的 3 nottomentionourknowledgeoftheworldandspace 更不要说我们对世界和空间知道的发现 nottomention更不用说 e g pollutionhasanegativeeffectonthehealthofeveryonelivinginthecity nottomentionthedamagetotheenvironment 污染对生活在城市里的每一个人的健康都有负面影响 更不用说对环境的破坏了 4 communicationchangedwiththeintroductionofmobilephonesandthewaywecorrespondwentfromwritingletterstoemailing 通讯随着移动电话的引入而改变 我们通信的方式从写信变成发电子邮件 correspondvt 通信e g forthenextthreeyearstheycorrespondedregularly 在接下来的三年里他们定期通信 shestoppedcorrespondingwithhimafterthedeathofhermother 她母亲死后她不再与他通信 5 scientistsfiguredouthowtosplittheatom previouslythoughttobethesmallestparticleofmatterintheuniverse 科学家们发现怎样分离原子 而原子以前被认为是宇宙中最小的物质微粒 previouslythoughttobethesmallestparticleofmatterintheuniverse是过去分词短语作定语 修饰theatom 相当于一个定语从句 即 whichwaspreviouslythoughttobe 6 itispossibletosingleoutafewpioneersofthe20thcentury 但是挑选出20世纪的几个先驱者是可能的 singleout挑出 选出 尤指人或物以进行表扬与批评 e g idon tseewhyheshouldbesingledoutforspecialtreatment 我不明白为什么把他挑出来特别款待 ourprogrammewassingledoutasbeingparticularlygood 我们的程序特别棒 因此被挑选出来了 7 whenhewassuddenlyinspired 突然 就在这时 他的灵感产生了 inspirevt 鼓舞 激励e g weneedsomeonewhocaninspiretheteam 我们需要能鼓舞士气的新队长 ihopethissuccesswillinspireyoutogreaterefforts 希望这次成功能激励你更加努力 inspiredbythesunnyweather idecidedtoexplorethewoods 在晴朗天气的激励下 我决定到森林走走 8 hebeganthelong lowprocessofexploringourgalaxy 他开始了对我们的星系的漫漫探索 explorevt 检查 研究 探讨 e g managementneedstoexplorewaysofimprovingofficesecurity 经营管理需要探讨改善办公安全的方法 i mgoingtoexplorethepossibilityofaparttimejob 我打算研究一下找份兼职的可能性 9 edwinhubblewasabouttomakeastronomy sgreatestbreakthroughofthecentury make abreakthrough突破 重大进展 e g scientistshavemadeamajorbreakthroughinthetreatmentofcancer 科学家们在癌症治疗上取得了重大突破 10 thenavyturnedtoeckert anengineer 海军方面向工程师埃里克求助 turntosb 求助于 求教于e g nobodyseemstounderstand idon tknowwhototurnto 似乎没有人懂这个问题 我也不知道向谁求教 11 itmeasured100feetlongbyover100feethighandweighedover30tonnes 它长100英尺 高100英尺 重30吨 byprep 乘以 除以 见方e g thekitchenis4metresby2metres 这个厨房4米长 2米宽 12 thepioneersofthe20thcenturywerealldedicatedtoimprovingallthequalityofhumanlifeonearth 这些20世纪的先驱们都致力于提高地球上人类生活的质量 dedicatedadj 敬业的 有奉献精神的 e g sheisconsideredtobeadedicatedandthoughtfulteacher 人们认为她是一个非常敬业 有思想的教师 13 thereisnodoubtaboutit 这是毫无疑问的 e g youcanseetheyareshortofstaff thereisnodoubtaboutit 你可以看出他们缺少员工 这是毫无疑问的 14 whetherluckyorplanned 不管是幸运的还是按计划进行的 whether or是连词 意为 不管 不论 引出让步状语从句 此句是省略句 完整的句子应该是whethertheyhadbeenluckyorplanned e g itseemedtomethatshewasintroublewhetherherhusbandlivedordied 不管她丈夫是死还是活 我看她好像陷入麻烦了 vocabulary compoundwords a compoundnoun noun noun b compoundnoun verb preposition preposition verb c compoundnoun adjective noun 5 matchthecategories a e withtheexamples 1 5 thenaddexamplesofyourown d compoundverbe compoundadjective 1 breakthrough outcome2 cdplayer jetengine3 mass produce double check4 one year old world famous far reaching5 flyingmachine nuclearbomb a 2b 4c 3d 5e 1 6 workinpairs discussthe