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《2019版高考英语一轮基础习选题 Unit 4 Making the news（含解析）新人教版必修5》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、Makingthenews一、阅读理解。Duringthelastdecadethenumberofpeoplelivingpast100hasincreasedby71percent.Whileoneexpertbelievedthisfigurewillcontinuetorise,hestatedthatanyonehopingtolivefordoubleortriple(三倍)thistimewillbedisappointed.Speakingataconference,ColinBlakemore,70,aBritishscientist,claimedthereisa
2、ceilingonhowlonghumanscanlive,andsixscoreyears“mightbearealabsolutelimittohumanlifespan.”Agroupofscientistsdiscussedthefutureofmedicine,globalhealthconcernsandlifeexpectancy.Itagreedthatmedicineswillhavealimitedimpactonextendinghumanlife,anditwasmoreimportanttoimprovethehealthandqualityoflifefo
3、rolderpeople,ratherthanprolongingit.Thegroupalsostateditwasimportanttoimprovethelifeexpectancyinpoorerareaswherepeopletypicallydiemuchyoungerthanotherareas.The2014GlobalAgeWatchIndex(全球年龄指数),whichranks96nationsonthequalityoflifefortheelderly,recentlystatedthatby2050,thenumberofover60swillbe21pe
4、rcentoftheglobalpopulation.Thisisalmostdoublethecurrentfigureof12percent.Thepercentageofover80sisgrowingfastest,too—expectedtorisefrom2percentnowto4percentoftheglobalpopulationby2050.Whileitcouldtakeyearsofresearchtoextendhumans’lives,thestudyraisesthepossibilityofanti-ageingtreatmentsinanewway
5、,accordingtoDrKapahi.Theresearch,reportedinthejournalCellReports,mayexplainwhyithasprovedsodifficulttoidentifysinglegenes(基因)responsibleforthelonglivesenjoyedbyhumans.“It’squiteprobablethatinteractionsbetweengenesarecriticalinthosefortunateenoughtoliveverylong,healthylives,”saidDrKapahi.Futurer
6、esearchisexpectedtousemicetoseeifthesameeffectsoccurinmammals.【文章大意】在过去十年里,寿命达到100岁以上的老人的数量激增了71%。但是英国科学家柯林·布雷克莫尔提出,人类的寿命是有上限的,而120岁很可能就是这个上限。1.HowmanyyearscanmanliveaccordingtoColinBlakemore?A.120years. B.200years.C.130years. D.150years.【解析】选A。细节理解题。根据文章首段末句中的“sixscoreyears‘mightbearealabsol
7、utelimittohumanlifespan’”可知ColinBlakemore认为人的寿命是有上限的,而120岁很可能就是这个上限,故选A。2.Theunderlinedword“prolonging”inParagraph2probablymeans________.A.limit B.enjoyC.shorten D.lengthen【解析】选D。词义猜测题。根据前半句内容可知人们都认为药物对延长人类寿命的影响是有限的,对于老年人来说,与其延
