当前位置:考试网  > 试卷库  > 外语类  > 雅思  > 阅读  > Roguetheoryofsmellgetsaboost 1.Acontroversialtheoryofhowwesmell,whichclaimsthatourfinesenseofodourdependsonquantummechanics,hasbeengiventhethumbsupbyateamofphysicists. 2.CalculationsbyresearchersatUniversityCollegeLondon(UCL)showthattheideathatwesmellodourmoleculesbysensingtheirmolecularvibrationsmakessenseintermsofthephysicsinvolved. 3.That'sstillsomewayfromprovingthatthetheory,proposedinthemid-1990sbybiophysicistLucaTurin,iscorrect.Butitshouldmakeotherscientiststaketheideamoreseriously. 4."Thisisabigstepforward,"saysTurin,whohasnowsetuphisownperfumecompanyFlexitralinVirginia.Hesaysthatsincehepublishedhistheory,"ithasbeenignoredratherthancriticized." 5.Mostscientistshaveassumedthatoursenseofsmelldependsonreceptorsinthenosedetectingtheshapeofincomingmolecules,whichtriggersasignaltothebrain.Thismolecular'lockandkey'processisthoughttoliebehindawiderangeofthebody'sdetectionsystems:itishowsomepartsoftheimmunesystemrecogniseinvaders,forexample,andhowthetonguerecognizessometastes. 6.ButTurinarguedthatsmelldoesn'tseemtofitthispictureverywell.Moleculesthatlookalmostidenticalcansmellverydifferent—suchasalcohols,whichsmelllikespirits,andthiols,whichsmelllikerotteneggs.Andmoleculeswithverydifferentstructurescansmellsimilar.Moststrikingly,somemoleculescansmelldifferent—toanimals,ifnotnecessarilytohumans—simplybecausetheycontaindifferentisotopes(atomsthatarechemicallyidenticalbuthaveadifferentmass). 7.Turin'sexplanationforthesesmellyfactsinvokestheideathatthesmellsignalinolfactoryreceptorproteinsistriggerednotbyanodourmolecule'sshape,butbyitsvibrations,whichcanenourageanelectrontojumpbetweentwopartsofthereceptorinaquantum-mechanicalprocesscalledtunnelling.Thiselectronmovementcouldinitiatethesmellsignalbeingsenttothebrain. 8.Thiswouldexplainwhyisotopescansmelldifferent:theirvibrationfrequenciesarechangediftheatomsareheavier.Turin'smechanism,saysMarshallStonehamoftheUCLteam,ismorelikeswipe-cardidentificationthanakeyfittingalock. 9.Vibration-assistedelectrontunnellingcanundoubtedlyoccur—itisusedinanexperimentaltechniqueformeasuringmolecularvibrations."Thequestioniswhetherthisispossibleinthenose,"saysStoneham'scolleague,AndrewHorsfield. 10.StonehamsaysthatwhenhefirstheardaboutTurin'sidea,whileTurinwashimselfbasedatUCL,"Ididn'tbelieveit".But,headds,"becauseitwasaninterestingidea,IthoughtIshouldproveitcouldn'twork.Ididsomesimplecalculations,andonlythenbegantofeelLucacouldberight."NowStonehamandhisco-workershavedonethejobmorethoroughly,inapapersoontobepublishedinPhysicalReviewLetters. 11.TheUCLteamcalculatedtheratesofelectronhoppinginanosereceptorthathasanodorantmoleculeboundtoit.Thisratedependsonvariouspropertiesofthebiomolecularsystemthatarenotknown,buttheresearcherscouldestimatetheseparametersbasedontypicalvaluesformoleculesofthissort. 12.Thekeyissueiswhetherthehoppingratewiththeodorantinplaceissignificantlygreaterthanthatwithoutit.Thecalculationsshowthatitis—whichmeansthatodouridentificationinthiswayseemstheoreticallypossible. 13.ButHorsfieldstressesthatthat'sdifferentfromaproofofTurin'sidea."Sofarthingslookplausible,butweneedproperexperimentalverification.We'rebeginningtothinkaboutwhatexperimentscouldbeperformed." 14.Meanwhile,Turinispressingaheadwithhishypothesis."AtFlexitralwehavebeendesigningodorantsexclusivelyonthebasisoftheircomputedvibrations,"hesays."Oursuccessrateatodorantdiscoveryistwoordersofmagnitudebetterthanthecompetition."Attheveryleast,heisputtinghismoneywherehisnoseis. Questions5-9 Completethesentencesbelowwithwordsfromthepassage.UseNOMORETHANTHREEWORDSforeachanswer. 5.Thehypothesisthatwesmellbysensingthemolecularvibrationwasmadeby______. 6.Turin'scompanyisbasedin______. 7.Mostscientistsbelievedthatournoseworksinthesamewayasour______. 8.Differentisotopescansmelldifferentwhen______weighdifferently. 9.AccordingtoAudrewHorsfield,itisstilltobeprovedthat______couldreallyoccurinhumannose.
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Roguetheoryofsmellgetsaboost

1.Acontroversialtheoryofhowwesmell,whichclaimsthatourfinesenseofodourdependsonquantummechanics,hasbeengiventhethumbsupbyateamofphysicists.

2.CalculationsbyresearchersatUniversityCollegeLondon(UCL)showthattheideathatwesmellodourmoleculesbysensingtheirmolecularvibrationsmakessenseintermsofthephysicsinvolved.

3.That'sstillsomewayfromprovingthatthetheory,proposedinthemid-1990sbybiophysicistLucaTurin,iscorrect.Butitshouldmakeotherscientiststaketheideamoreseriously.

4."Thisisabigstepforward,"saysTurin,whohasnowsetuphisownperfumecompanyFlexitralinVirginia.Hesaysthatsincehepublishedhistheory,"ithasbeenignoredratherthancriticized."

5.Mostscientistshaveassumedthatoursenseofsmelldependsonreceptorsinthenosedetectingtheshapeofincomingmolecules,whichtriggersasignaltothebrain.Thismolecular'lockandkey'processisthoughttoliebehindawiderangeofthebody'sdetectionsystems:itishowsomepartsoftheimmunesystemrecogniseinvaders,forexample,andhowthetonguerecognizessometastes.

6.ButTurinarguedthatsmelldoesn'tseemtofitthispictureverywell.Moleculesthatlookalmostidenticalcansmellverydifferent—suchasalcohols,whichsmelllikespirits,andthiols,whichsmelllikerotteneggs.Andmoleculeswithverydifferentstructurescansmellsimilar.Moststrikingly,somemoleculescansmelldifferent—toanimals,ifnotnecessarilytohumans—simplybecausetheycontaindifferentisotopes(atomsthatarechemicallyidenticalbuthaveadifferentmass).

7.Turin'sexplanationforthesesmellyfactsinvokestheideathatthesmellsignalinolfactoryreceptorproteinsistriggerednotbyanodourmolecule'sshape,butbyitsvibrations,whichcanenourageanelectrontojumpbetweentwopartsofthereceptorinaquantum-mechanicalprocesscalledtunnelling.Thiselectronmovementcouldinitiatethesmellsignalbeingsenttothebrain.

8.Thiswouldexplainwhyisotopescansmelldifferent:theirvibrationfrequenciesarechangediftheatomsareheavier.Turin'smechanism,saysMarshallStonehamoftheUCLteam,ismorelikeswipe-cardidentificationthanakeyfittingalock.

9.Vibration-assistedelectrontunnellingcanundoubtedlyoccur—itisusedinanexperimentaltechniqueformeasuringmolecularvibrations."Thequestioniswhetherthisispossibleinthenose,"saysStoneham'scolleague,AndrewHorsfield.

10.StonehamsaysthatwhenhefirstheardaboutTurin'sidea,whileTurinwashimselfbasedatUCL,"Ididn'tbelieveit".But,headds,"becauseitwasaninterestingidea,IthoughtIshouldproveitcouldn'twork.Ididsomesimplecalculations,andonlythenbegantofeelLucacouldberight."NowStonehamandhisco-workershavedonethejobmorethoroughly,inapapersoontobepublishedinPhysicalReviewLetters.

11.TheUCLteamcalculatedtheratesofelectronhoppinginanosereceptorthathasanodorantmoleculeboundtoit.Thisratedependsonvariouspropertiesofthebiomolecularsystemthatarenotknown,buttheresearcherscouldestimatetheseparametersbasedontypicalvaluesformoleculesofthissort.

12.Thekeyissueiswhetherthehoppingratewiththeodorantinplaceissignificantlygreaterthanthatwithoutit.Thecalculationsshowthatitis—whichmeansthatodouridentificationinthiswayseemstheoreticallypossible.

13.ButHorsfieldstressesthatthat'sdifferentfromaproofofTurin'sidea."Sofarthingslookplausible,butweneedproperexperimentalverification.We'rebeginningtothinkaboutwhatexperimentscouldbeperformed."

14.Meanwhile,Turinispressingaheadwithhishypothesis."AtFlexitralwehavebeendesigningodorantsexclusivelyonthebasisoftheircomputedvibrations,"hesays."Oursuccessrateatodorantdiscoveryistwoordersofmagnitudebetterthanthecompetition."Attheveryleast,heisputtinghismoneywherehisnoseis.

Questions5-9

Completethesentencesbelowwithwordsfromthepassage.UseNOMORETHANTHREEWORDSforeachanswer.

5.Thehypothesisthatwesmellbysensingthemolecularvibrationwasmadeby______.

6.Turin'scompanyisbasedin______.

7.Mostscientistsbelievedthatournoseworksinthesamewayasour______.

8.Differentisotopescansmelldifferentwhen______weighdifferently.

9.AccordingtoAudrewHorsfield,itisstilltobeprovedthat______couldreallyoccurinhumannose.

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正确答案:

5.Luca Turin

6.Virginia

7.tongue

8.the atoms

9.vibration-assisted electron tunneling

答案解析:

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练习:

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A.light music that customers enjoy mostB.fast music that makes people move fast

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A. When Denis Hennequin took over as the European boss of McDonald’s in January 2004, the world’s biggest restaurant chain was showing signs of recovery in America and Australia, but sales in Europe were sluggish or declining. One exception was France, where Mr Hennequin had done a sterling job as head of the group’s French subsidiary to sell more Big Macs to his compatriots. His task was to replicate this success in all 41 of the European countries where anti-globalisers’ favourite enemy operates.

B. So far Mr Hennequin is doing well. Last year European sales increased by 5.8% and the number of customers by 3.4%, the best annual results in nearly 15 years. Europe accounted for 36% of the group’s profits and for 28% of its sales. December was an especially good month as customers took to seasonal menu offerings in France and Britain, and to a promotion in Germany based on the game of Monopoly.

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G. In his previous job Mr Hennequin established a “design studio” in France to spruce up his company’s drab restaurants and adapt the interior to local tastes. The studio is now masterminding improvements everywhere in Europe. He also set up a “food studio”, where cooks devise new recipes in response to local trends.

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Notes to Reading Passage 1

1.sterling高质量的

e.g. He has many sterling qualities. 他身上有许多优秀的品质。

2. menial 不体面的, 乏味的(工作、职业)

3. spruce up打扮整齐、漂亮、装饰

4. mastermind指挥、谋划(一个计划或活动)

e.g. The police know who masterminded the robbery.警察知道是谁策划了那次抢劫。

5. underperform表现不佳表现出低于标准的工作水平、企业出现亏本

Questions 1-6

Do the following statements reflect the claims of the writer in Reading Passage 1?

Write your answer in Boxes 1-6 on your answer sheet.

TRUE if the statement reflects the claims of the writer

FALSE if the statement contradicts the claims of the writer

NOT GIVEN if it is impossible to say what the writer thinks about this

1. McDonald was showing the sign of recovery in all European countries except France after Denis Hennequin took office as the boss of Euro-markets.

2. Starting from last year, detailed labels are put on McDonald’s packaging and detailed information is also printed on tray-liners.

3. France is said to be the most anti-American country in Europe, but the ideas of the “open door” visiting days and “McPassport” are invented in the French market.

4. Britain possesses the weakest McDonald market among European countries and approximately 1214 McDonald’s restaurants are company-owned.

5. According to David Palmer, a restaurant analyst at UBS, David Hennequin should treat the problem about McDonald in Britain as the most important thing.

6. David Palmer suggested that the management of McDonalod in Italy should sell as many its outlets which lose money in business as possible for revival.

Questions 7-10

Choose the appropriate letters A-D and write them in boxes 7-10 on your answe sheet.

7. The word “sterling” in line 3 of Paragraph A means__________.

A. difficult

B. menial

C. terrible

D. excellent

8. Which of the following statements on the accusation of MacDonald is NOT TRUE?

A. It tends to make people fat.

B. Its operations are very vague.

C. It tends to exploit workers.

D. It tends to treat animals cruelly.

9. Which of the following measures taken by Denis Hennequin produced undesired result?

A. “Food Studio” scheme.

B. “Open Door” visitor days.

C. The “McPassport” scheme.

D. The Nutrition Information Initiative.

10. What did Denis Hennequin do so as to respond to local trends?

A. set up a “Food Studio” .

B. established a “Design Studio”.

C. hired celebrities as local brand ambassadors.

D. employed local bosses as much as possible.

Questions 11-14

Complete each of the following statements (Questions 11-14) with words or number taken from Reading Passage 1.

Write NO MORE THAN THREE WORDS for each answer.

Write your answers in boxes 11-14 on your answer sheet.

11. After January 2004, McDonald was making improvement following a period of slump in America and Australia, but sales in Europe were ………………………….

12. Business of McDonald in France and Britain was particularly good in December since customers took to ……………………………..

13. Compared with other countries, France is McDonald’s ………………………. next to America.

14. ……………………. of McDonald’s restaurants in America are companied–owned and the figure is much lower than that in Britain.

Dadwenttobuysome__________as__________formycousin.

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C.slowmusicthatcanmakecustomersenjoytheirmeals

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NotestoReadingPassage1

1.low-key:

抑制的,受约束的,屈服的

2.showman:

开展览会的人,出风头的人物

3.unassuming:

谦逊的,不夸耀的,不装腔作势的

4.iPod:

(苹果公司出产的)音乐播放器

5.iTunesstore:

(苹果公司出产的)在线音乐商店

6.getoffperson’sback:

不再找某人的麻烦,摆脱某人的纠缠

7.gravitate:

受吸引,倾向于

8.unfazed:

不再担忧,不被打扰

Questions1-7

DothefollowingstatemetsreflecttheclaimsofthewriterinReadingPassage1?

WriteyouranswerinBoxes1-7onyouranswersheet.

TRUEifthestatementrefletstheclaimsofthewriter

FALSEifthestatementcontradictstheclaimsofthewriter

NOTGIVENifitisimpossbiletosaywhatthewriterthinksaboutthis

1.AppleenjoysacontrollingpositionindigitalmusicmarketwithitsiPodmusic-playerandiTunesmusic-store.

2.DRMisagovernmentdecreeissuedwithapurposetoprotectdownloadedmusicfromtheftbyconsumers.

3.LackofstandardizationinDRMmakessongsboughtforonekindofmusicplayermaynotfunctiononanother.

4.ApplehasbeencriticizedbyEuropeanregulatorssinceithasrefusedtograntalicenseFairPlaytootherfirms.

5.Allmusiccanbeeasilyplayedonnon-iPodmusicdevicesfromSonyorMicrosoftwithouttoomuchfiddling.

6.AppledependsfarmoreonDRMratherthanbrandingforitsdominanceofthedigitalmusicdevices.

7.IfDRMwascancelled,Sonywouldcertainlydominatetheinternationaldigitalmusicmarket.

Questions8-10

ChoosetheappropriatelettersA-Dandwritetheminboxes8-10onyouranswesheet.

8.WhichofthefollowingstatementsaboutMr.Jobs’ideaofDRMisNOTTRUE?

A.DRMplacesrestrictionsonconsumer’choiceofdigitalmusicproductsavailable.

B.DRMcomplesiTunesbuyerstoswitchtoadevicemadebySonyorMicrosoft.

C.DRMconstitutesabarrierforpotentialconsumerstoenterdigitalmusicmarkets.

D.DRMhindersdevelopmentofmorestoresandplayersandtechnicalinnovation.

9.Theword“unfazed”inline3ofparagraphE,means___________.

A.refused

B.welcomed

C.notbothered

D.notwellreceived

10.WhichofthefollowingstatementsisTRUEifDRMwasscapped?

A.Sonywouldgainthemostprofit.

B.Morecustomerswouldbe“lockedin”.

C.Asuddenincreaseinpiracywouldoccur.

D.Online-musicsaleswouldprobablydecrease.

Questions11-14

Completethenotesbelow.

ChooseNOMORETHANTHREEWORDSfromReadingPassage1foreachanswer.

Writeyouranswersinboxes11-14onyouranswersheet.

Mr.SteveJobs,thebossofApple,explainsthereasonwhyheusedtodefendDRM,sayingthatthecompanywasforcedtodoso:therecordcompanieswouldmaketheirmusicaccessibleto…11...onlyiftheyagreedtoprotectitusingDRM;theycanstill…12…iftheDRMsystemiscompromised.HealsoprovidesthereasonwhyAppledidnotlicenseFairPlaytoothers:thecompanyreliesonthemto…13….ButnowhechangeshismindwithapossibleexpectationthatEurope’sregulatorswouldnottroublehimanymoreinthefuture.Heproposesthatthosewhoareunsatisfactorywiththecurrentsituationindigitalmusicmarketshould…14…towardspersuadethemusiccompaniestoselltheirmusicDRM-free.

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材料一:日前,中国科学院在京召开新闻发布会对外宣布“墨子号”进行科学实验卫星提前并圆满实现全部既定科学目标,为我国在未来继续引领世界量子通过研究奠定了坚实的基础。通信安全是国家信息安全和人类经济社会生活的基本需求。千百年来,人们对于通信安全的追求从未停止。然而,基于计算复杂性的传统加密技术,在原理上存在着被破译的可能性,随着数学和计算能力的不断提升,经典密码被破译的可能性与日俱增,中国科学技术大学潘建伟教授说:“通过量子通信可以解决这个问题,把量子物理与信息技术相结合,利用量子调控技术,用一种革命性的方式对信息进行编码、存储、传输和操纵,从而在确保信息安全,提高运算速度,提升测量精度等方面突破经典信息技术的瓶颈。”量子通信主要研究内容包括量子密匙分发和量子隐形的传态,量子密匙分发通过量子态的传输,使遥远两地的用户可以共享无条件安全的密匙,利用该密匙对信息进行一次一密的严格加密,这是目前人类唯一已知的不可窃听,不可破译的无条件安全的通信方式。量子通信的另一重要内容量子隐形传态,是利用量子纠缠特性讲物质的未知量子态精确传送到遥远地点,而不用传送物质本身。通过隐形传输实现信息传送。(摘编自吴月辉《墨子号”,抢占量子科技创新制高点》,《人民日报》2017年8月10日)材料二:潘建伟的导师安东·蔡林格说,潘建伟的团队在量子互联网的发展方面冲到了领先地位,量子互联网是由卫星和地面设备构成的能够在全球范围分享量子信息的网络。这将使不可破解的全球加密通信成为可能,同时也使我们可以开展一些新的控制远距离量子联系的实验。目前,潘建伟的团队计划发射第二颗卫星,他们还在中国的天宫二号空间站上进行着一项太空量子实验,潘建伟说,未来五年“还会取得很多精彩的成果,一个新的时代已经到来”。潘建伟是一个有着无穷热情的乐观主义者,他低调地表达了自己的信心,称中国政府将会支持下一个宏伟计划——一项投资20亿美元的量子通信、量子计量和量子计划的五年计划,与此形成对照的是欧洲2016年宣布的旗舰项目,投资额为12亿美元。(摘编自伊丽莎白·吉布尼《一位把量子通信带到太空又带回地球的物理学家》、《自然》2017年12月)材料三:日本《读卖新闻》5月2日报道:中国实验设施瞄准一流(记者:莳田一彦、船越翔)在中国南部广东省东莞市郊外的丘陵地带,中国刚才刚建成了大型实验设施,“中国散裂中子源”,该实验设施建设费用达到23亿元人民币,3月正式投入运行。中国是继美国、英国、日本之后第四个拥有同样设施的国家。日本的J-PARC加速器设施中心主任齐藤直人说:“虽然日本在技术和经验上领先,但中国发展得实在太快,亚洲的中心正在从日本向中国转移。”中国推进的这类大型工程还有很多。3月,中国人民政治协商会议开幕。政协委员潘建伟被媒体记者团团围住。潘建伟是利用2016年发射的“墨子号”人造卫星进行量子通信研究的研究团队负责人,其团队2017年以后相继发布了多项世界首创的实验成果。潘建伟今年当选美国《时代》杂志“全球百大最具影响力人物”。使用人造卫星的实验要耗费巨额资金,欧洲和日本还在犹豫不决、日本的研究人员还在犹豫不决,日本的研究人员认为,“在基础科学领域,中国正在踏入他国难以涉足的领域,领先世界”。(摘编自《参考消息》2018年5月7日)以上三则材料中,《人民日报》《自然》《读卖新闻》报道的侧重点有什么不同?为什么?请结合材料简要分析。
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鲁芝字世英,扶风郿人也。世有名德,为西州豪族。父为郭汜所害,芝襁褓流离,年十七,乃移居雍,耽思坟籍..。郡举上计吏,州辟别驾。魏车骑将军郭淮为雍州刺史,深敬重之。举孝廉,除郎中。后拜骑都尉、参军事、行安南太守,迁尚书郎。曹真出督关右,又参大司马军事。真薨,宣帝代焉,乃引芝参骠骑军事,转天水太守。郡邻于蜀,数被侵掠,户口减削,寇盗充斥,芝倾心镇卫,更造城市,数年间旧境悉复。迁广平太守。天水夷夏慕德,老幼赴阙..献书,乞留芝。魏明帝许焉。曹爽辅政,引为司马。芝屡有谠言嘉谋,爽弗能纳。及宣帝起兵诛爽,芝率余众犯门斩关,驰出赴爽,劝爽曰:“公居伊周之位,一旦以罪见黜,虽欲牵黄犬,复可得乎!若挟天子保许昌,杖大威以羽檄征四方兵,孰敢不从!舍此而去,欲就东市,岂不痛哉!”爽懦惑不能用遂委身受戮芝坐爽下狱当死而口不讼直志不苟免宣帝嘉之赦而不诛俄而起为并州刺史诸葛诞以寿春叛,魏帝出征,芝率荆州文武以为先驱。诞平,迁大尚书,掌刑理。武帝践祚..,转镇东将军,进爵为侯。帝以芝清忠履正,素无居宅,使军兵为作屋五十间。芝以年及悬车,告老逊位..,章表十余上,于是征为光禄大夫,位特进,给吏卒,门施行马。羊祜为车骑将军,乃以位让芝,曰:“光禄大夫鲁芝洁身寡欲,和而不同,服事华发,以礼终始,未蒙此选,臣更越之,何以塞天下之望!”上不从。其为人所重如是。泰始九年卒,年八十四。帝为举哀,谥曰贞,赐茔田百亩。(节选自《晋书·鲁芝传》)把文中画横线的句子翻译成现代汉语。(10分)(1)诸葛诞以寿春叛,魏帝出征,芝率荆州文武以为先驱。(2)帝以芝清忠履正,素无居宅,使军兵为作屋五十间。
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