高中英语 Unit 20 New Frontiers Section Ⅲ Reading（Ⅱ）（Lesson 2 Lesson 3）讲义 北师大版选修7-北师大版高二选修7英语教案VIP免费

SectionⅢReading(Ⅱ)(Lesson2&Lesson3)Ⅰ.匹配下列单词的词性及汉语意思()1.presentA．adj.直言的，坦率的()2.categoryB．adv.同时()3.investC．n.出口()4.exitD．vi.通信；符合()5.dilemmaE．n.后果，结果()6.procedureF．vt.主持(电视或广播节目)；呈现()7.correspondG．n.类别；类型()8.meanwhileH．n.困境，进退两难的窘境()9.outspokenI．vt.投资()10.outcomeJ．n.步骤；程序[答案]1－5FGICH6－10JDBAEⅡ.选择下列句中词组的汉语意思()1.Ihavemadeitclearthatwe'llmakeupforthelosttime.()2.WhenMr.Greenretired,hissontookoverthebusinessfromhim.()3.Hetookhisneighbour'sclothesbymistake，sohehungthembackoutside.()4.Noonecouldfigureouthowhegottobesowealthy.()5.Wecan'taffordacar，nottomentionthefactthatwehavenogarage.()6.Hegotitacrosstomethateducationisveryimportant.[答案]1－6BDEFCAPIONEERSOFSCIENCEIfyouhadtochoosethesinglemostimportantdiscoveryofthe20thcentury,youwouldhavearealdilemmaonyourhands.Injust100years,theworldchangedcompletely.Amazingdiscoveriesweremadeinmedicine,communicationsandtransport,nottomentionourknowledgeoftheworldandspace.Medicaladvancesrangedfromdiscoveringthecausesofdiseasesundermicroscopes(显微镜)to①surgicalproceduresreplacingdiseasedorgans(器官)withdonated(捐赠)ones.Communicationschangedwiththeintroductionofmobilephonesandthewaywecorrespond②wentfromwritingletterstoemailing.Westartedflyingaroundtheworldandmeanwhile,scientistsfiguredouthowtosplit(分离)theatom,previouslythoughttobethesmallestparticleofmatterintheuniverse③.Althoughitisimpossibletochoosethemostimportantdiscovery,itispossibletosingleoutafewpioneersofthe20thcentury.Herearefiveofthem.科学先锋如果你要选出20世纪个人最为重要的发现，你就会面临一个真正的难题。在仅仅100年的时间里，世界完全发生了变化。人们在医药、通信和运输方面做出了令人惊叹的发现，更不要说我们对世界和太空的知识发现了。人们在显微镜下看到了致病的原因，掌握了用捐献的器官来替换染病器官的外科手术程序，诸如此类都是医学取得的进步。通迅随着移动电话的引入而改变，我们的通信方式从写信变成了发电子邮件。我们开始在世界各地飞行，与此同时，科学家们发现了怎样分离原子，而原子以前被认为是宇宙中最小的物质微粒。虽然要选出最为重要发现是不可能的，然而却有可能选出20世纪的一些科学先锋。以下是他们中的五个代表。[助读讲解]①rangefrom...to...从……到……不等。②wecorrespond是定语从句修饰先行词theway，theway在从句中作状语。③过去分词短语作定语修饰theatom。Oneofthe20thcentury'spremier(最主要的)scientistswasAlbertEinstein.Inthesummerof1905,thisoutspokenyoungmanwasrockinghisoneyearoldbabywhen④hewassuddenlyinspired.“E＝mc2”wasborn.E＝mc2showedhowasmallpieceofmasscouldproduceanunbelievableamountofenergy.Einsteinthenshowedinhis“theoryofrelativity”thatnoteventime,massorlengthareconstant—theychangeaccordingtoourexperienceofthem.Einsteinhadalreadybecomeworldfamouswhenayoungexlawyer，returningfromtheFirstWorldWar⑤，startedworkinCalifornia.Usingthemosthigh-poweredtelescope(望远镜)ofthetime⑥，hebeganthelong,slowprocessofexploringourgalaxy(星系)．EdwinHubblewasabouttomakeastronomy'sgreatestbreakthroughofthecentury.Hediscoveredsmallareasofmist(薄雾)whichwereinfactgalaxieslikeourown,millionsoflightyearsawayfromus,whichprovedthattheuniversewasvastlylargerthanhadpreviouslybeenthought.⑦20世纪最为著名的科学家之一是阿尔伯特·爱因斯坦。1905年夏天，这位直率的年轻人正在摇着他一岁的孩子时，突然产生了灵感，“E＝mc2”．E＝mc2表明质量很小的物质是如何产生了令人难以置信的能量的。爱因斯坦后来在他的“相对论”里表...