大学英语四级改革适用（阅读）模拟试卷75

大学英语四级改革适用(阅读)模拟试

卷75

一、长篇阅读(本题共30题，每题7.0分，共30分。)

HowtoMakeAttractiveandEffectivePowerPointPresentationsA)Microsoft

PowerPointhasdramaticallychangedthewayinwhichacademicandbusiness

presentationsaremade.Thisarticleoutlinesfewtipsonmakingmoreeffectiveand

attractivePowerPointpresentations.TheTextB)Kccpthewordingclearandsimple.Use

active,visuallanguage.Cutunnecessarywords—agoodruleofthumbistocut

paragraphsdowntosentences,sentencesintophrases,andphrasesintokeywords.Limit

(henumberofwordsandlinesperslide.TrytheRuleofFive-fivewordsperline,five

linesperslide.Iftoomuchtextappearsononeslide,usetheAutoFitfeaturetosplitit

betweentwoslides.ClickwithintheplaceholdertodisplaytheAutoFitOptionsbutton(its

symbolistwohorizontallineswitharrowsaboveandbelow),thenclickonthebutton

andchooseSplitTextbetweenTwoSlidesfromthesubmenu.C)Fontsizefortitles

shouldbeatleast36to40,whilethetextbodyshouldnotbesmallerthan24.Useonly

twofontstylesperslide-oneforthetitleandtheotherforthetext.Choosetwofonts

thatvisuallycontrastwitheachother.GaramondMediumCondensedandImpactare

goodfortitles,whileGaramondorTempusSanscanbeusedforthetextbody.D)Embed

thefontsinyourpresentation,ifyouarenotsurewhetherthefontsusedinthe

presentationarepresentinthecomputerthatwillbeusedforthepresentation.Toembed

thefonts:(l)OntheFilemenu,clickSaveAs.(2)Onthetoolbar,clickTools,clickSave

Options,selecttheEmbedTrueTypeFontscheckbox,andthenselectEmbedcharacters

inuseonly.E)Usecolorssparingly;twotothreeatmost.Youmayuseonecolorforall

thetitlesandanotherforthetextbody.Beconsistentfromslidetoslide.Chooseafont

colorthatcontrastswellwiththebackground.F)Capitalizingthefirstletterofeachword

isgoodforthetitleofslidesandsuggestsamoreformalsituationthanhavingjustthe

firstletterofthefirstwordcapitalized.Inbulletpointlines,capitalizethefirstwordand

nootherwordsunlesstheynormallyappearcapped.Upperandlowercaseletteringis

morereadablethanallcapitalletters.Moreover,currentstylesindicatethatusingall

capitallettersmeansyouareshouting.Ifyouhavetextthatisinthewrongcase,select

thetext,andthenclickShift+F3untilitchangestothecasestylethatyoulike.Clicking

Shift+F3togglesthetextcasebetweenALLCAPS,lowercase,andInitialCapitalstyles.

G)Useboldoritalictypefaceforemphasis.Avoidunderlining,itcluttersupthe

presentation.Don'tcenterbulletedlistsortext.Itisconfusingtoread.Leftalignunless

youhaveagoodreasonnotto.Run"spellcheck"onyourshowwhenfinished.The

BackgroundH)Keepthebackgroundconsistent.Simple,lighttexturedbackgroundswork

well.Complicatedtexturesmakethecontenthardtoread.Ifyouareplanningtouse

manyclipsinyourslides,selectawhitebackground.Ifthevenueofyourpresentationis

notadequatelylight-proof,selectadark-coloredbackgroundanduseanylightcolorfor

text.Minimizetheuseof"bellsandwhistles"suchassoundeffects,"flyingwords"and

multipletransitions.Don'tuseredinanyfontsorbackgrounds.Itisanemotionally

overwhelmingcolorthatisdifficulttoseeandread.TheClipsI)Animationsarebestused

subtly;toomuchHashandmotioncandistractandannoyviewers.Donotrelytoo

heavilyonthoseimagesthatwereoriginallyloadedonyourcomputerwiththerestof

Office.YoucaneasilyfindappropriateclipsonanytopicthroughGoogleImages.While

searchingforimages,donotuselongsearchphrasesasisusuallydonewhilesearching

theweb-usespecificwords.J)Whenimportingpictures,makesurethattheyaresmaller

thantwomegabytesandareinajpgformat.Largerfilescanslowdownyourshow.Keep

graphs,chartsanddiagramssimple,ifpossible.Usebargraphsandpicchartsinsteadof

tablesofdata.Theaudiencecanthenimmediatelypickuptherelationships.The

PresentationK)Ifyouwantyourpresentationtodirectlyopenintheslideshowview,

saveitasaslideshowfileusingthefollowingsteps.Openthepresentationyouwantto

saveasaslideshow.OntheFilemenu,clickSaveAs.IntheSaveastypelist,click

PowerPointShow.Yourslideshowfilewillbesavedwithapptfileextension.Whenyou

double-clickonthisfile,itwillautomaticallystartyourpresentationinslideshowview.

Whenyou'redone,PowerPointautomaticallyclosesandyoureturntothedesktop.Ifyou

wanttoedittheslideshowfile,youcanalwaysopenitfromPowerPointbyclicking

OpenontheFilemenu.L)Lookattheaudience,notatiheslides,wheneverpossible.If

usingalaserpointer,don'tmoveittoofast.Forexample,ifcirclinganumberonthe

slide,doitslowly.Neverpointthelaserattheaudience.Blackoutthescreen(use"B"on

thekeyboard)afterthepointhasbeenmade,toputthefocusonyou.Pressthekeyagain

tocontinueyourpresentaiion.M)Youcanusetheshortcutcommand[Ctrl]Ptoaccessthe

Pentoolduringaslideshow.ClickwithyourmouseanddragtousethePentooltodraw

duringyourslideshow.Toeraseeverythingyou'vedrawn,presstheEkey.Toturnoff

thePentool,press!Esc|once.MiscellaneousN)MasterSlideSet-Up:The"masterslide"

willallowyoutomakechangesthatarereflectedoneveryslideinyourpresentation.You

canchangefonts,colors,backgrounds,headers,andfootersatthe"masterslide"level.

First,gotothe"View"menu.Pulldownthe"Master"menu.Selectthe"slidemaster'

menu.Youmaynowmakechangesatthislevelthatmeetyourpresentationneeds.

1、WhenmakingthePowerPoint,thewordingofthetextshouldbesimple.

标准答案：B」「

知识点解析：题干:当做ppt时，文本的措辞不要太复杂。题干关键词wordingof

ihelexl和complicaied。文中B段第一句提到，要保持措辞的清楚和简洁。与题干

意思吻合，故选B。

2、Whenimportingpictures,makesurethattheyaresmallerthan2MB.

标准答案：J

知识点解析：题干：在导入图片时，确保每个图片小于2M。题干关键词importing

和2MB。文中J段第一句提到，当输入图片时，保证图片小于2M,并且jpg格

式。与题干意思吻合，故选J。

3、Amoreformalsituationiscapitalizingthefirstletterofeachword.

标准答案：F

知识点解析：题干：一种更正式的情况是，把每一个单词的首字母大写。题干关键

词moreformalsituation,capitalizing和firstletterofthefirstwordo文中F段第一句

提到.标题的每个单词首字母都大写，并且建议一种更正式的方式，即第一个单词

的首字母大写。与题干意思吻合，故选F。

4、Centeringbulletedlistsortextisconfusingtoread.

标准答案：G

知识点解析：题干：中心对齐的项目符号列表使阅读变得更加不混乱。题干关键词

14

Centeringbulletedlists,confusingo文4G段第三句提到，不要把项目列表或者文

本中心对齐，它会使阅读，更加混乱。与题干意思吻合，故选

5、Thewaysinwhichacademicandbusinesspresentationsaremadehavebeenchanged

byMicrosoftPowerPoint.

标准答案：A

知识点解析：题干：学术和商业展示的方式被微软的幻灯片软件改变了。题干关键

词academicandbusinesspresentations和MicrosoftPowerPointo文中A段第一句提

到。微软幻灯片软件极大地影响了学术和商业展示的方式。与题干意思吻合，故选

Ao

6、PressingtheEkeycanhelpyoutoeraseeverythingyou'vedrawn.

标准答案：M

知识点解析：题干：按E键可以清除你画上的任何东西。题干关键词Ekey和

eraseeverything。文中M段讲的各种操作，其中倒数第二句提到，耍擦除画的东

西，可以按E键。与题干意思吻合，故选M。

7、Ineachslide,thefontstylesfbrthetitleandthetextshouldcontrastwitheachother.

标准答案：c

知识点解析：题干：在每个幻灯片上，标题和文本的字体应该有明显对比。题干关

键词fontstylesforthetideandthetext和conlrast。文中C段第一句和第三句提到，

每张幻灯片只使用两种字体——一个是标题，另一个是文本。选择两种对比形象的

字体。与题干意思吻合，故选C。

8、Inordertomeetyourpresentationneeds,youcanmakechangesalthe"slidemaster"

level.

标准答案：N

知识点解析：题干：为了满足展示的需要，你可以在幻灯片母版改变级别。题干关

键词presentationneeds和“slidemaster,leveL文中N段第二句提到你可以在母版中

改变字体、颜色、背景和脚注。与题干意思吻合，故诜N。

9、Soundeffectsshouldbeusedaslessfrequentlyaspossible.

标准答案：H

知识点解析：题干：应该尽量少用声音效果。题干关键词Soundeffects。文中H段

倒数第三句提到，把如笑声和哨音的声音效果，飞行的文字和各种转换的使用减到

最少。与题干意思吻合，故选H。

10^Whenmakingthepresentation,youshouldlooka(theaudienceaspossibleasyou

can.

标准答案：L

知识点解析：题干：当做展示的时候。你应该尽可能地看着听众。题干关键词

makingthepresentation和lookattheaudienceo文中L段第一句提到，如果可能，就

看听众，而不是幻灯片。与题干意思吻合，故选L。

EducationStudyFindsU.S.FallingBehindA)TeachersintheUnitedStatesearnless

relativetonationalincomethantheircounterpartsinmanyindustrializedcountries,yet

theyspendfarmorehoursinfrontoftheclassroom,accordingtoamajornew

internationalstudy.B)Thesalarydifferentialsarepartofapatternofrelativelylowpublic

investmentineducationintheUnitedStatescomparedwithothermembernationsofthe

OrganizationforEconomicCooperationandDevelopment,agroupinParisthatcompiled

thereport.TotalgovernmentspendingoneducationalinstitutionsintheUnitedStates

slippedto4.8percentofgrossdomesticproductin1998,fallingundertheinternational

average—5percent—forthefirsttime.C)"Thewholeeconomyhasgrownfasterthanthe

educationsystem,"AndreasSchleicher,oneofthereports'authors,explained."The

economyhasdoneverywell,butteachershavenotfullybenefited."Thereport,dueout

today,isthesixthoneducationpublishedsince1991bytheorganizationof30nations,

foundedin1960,andnowcoveringmuchofEurope,NorthAmerica,Japan,SouthKorea,

AustraliaandNewZealand.D)Inadditiontotheteacherpaygap,thereportshowsthe

othercountrieshavebeguntocatchupwiththeUnitedStatesinhighereducation:college

enrollmenthasgrownby20percentsince1995acrossthegroup,withoneinfouryoung

peoplenowearningdegrees.Forthefirsttime,theUnitedStates'collegegraduationrate,

nowat33percent,isnottheworld'shighest.Finland,theNetherlands,NewZealandand

Britainhavesurpassedit.E)TheUnitedStatesisalsoproducingfewermathematicsand

sciencegraduatesthanmostoftheothermemberstates.And,thereportsays,acollege

degreeproducesagreaterboostinincomeherewhilethelackofahighschooldiploma

imposesabiggerincomepenalty."Thenumberofgraduatesisincreasing,butthat

stimulatesevenmoreofademand-thereisnoendinsight/'Mr.Schleichersaid."The

demandforskill,clearly,isgrowingfasterthanthesupplythatiscomingfromschools

andcolleges.1'F)ThcreportliststhesalaryfbrahighschoolteacherintheUnitedStates

with15yearsexperienceas$36,219,abovetheinternationalaverageof$31,887but

behindsevenothercountriesandlessthan60percentofSwitzerland's$62,052.Because

teachersintheUnitesStateshaveaheavierclassroomload—teachingalmostathird

morehoursthantheircounterpartsabroad-theirsalaryperhourofactualteachingis

$35,lessthantheinternationalaverageof$41(Denmark,SpainandGermanypaymore

than$50perteachinghour,SouthKorea$77),In1994.suchaveteranteacherinthe

UnitedStatesearned1.2timestheaveragepercapitaincomewhereasin1999thesalary

wasjustunderthenationalaverage.OnlytheCzechRepublic,Hungary,Icelandand

Norwaypaytheirteacherslessrelativetonationalincome;inSouthKorea,theactual

teachingsalaryis2.5timesthatofthenationalaverage.Teacherpayaccountsfbr56

percentofwhattheUnitedStatesspendsoneducation,wellbelowthe67percentaverage

amongthegroupofcountries.G)ThcnewdatacomeastheUnitedStatesfacesashortage

oftwomillionteachersoverthenextdecade,withquestionsoftraining,professionalism

andsalariesbeingdebatedbypoliticianslocalandnational.JoostEff,aninternational

expertattheAmericanAssociationofCollegesofTeacherEducation,saidtrainingfor

teachersiscomparableamongmostofthenationsinthestudy,andthattheyareall

dealingwithsimilarissuesofraisingstandardsandincreasingprofessionalism.

H)ThoughtheUnitedStateslagsbehindinscoresonstandardizedtestsinscienceand

mathematics,studentsheregetmoreinstructioninthosesubjects,thereportshows.The

average14-ycar-oldAmericanspent295hoursinmathandscienceclassesin1999,far

morethanthe229internationalaverage;onlyAustria(370hours),Mexico(367)andNew

Zealand(320)havemoreinstructioninthosesubjects.Middle-schoolersherespendless

timethantheirinternationalcounterpartsstudyingforeignlanguagesandtechnology,but

farmorehoursworkingonphysicaleducationandvocationalskills.Highschoolstudents

intheUnitedStatesarefarmorelikelytohavepart-timejobs:64percentofAmericans

ages15to19workedwhileinschool,comparedwithaninternationalaverageof31

pcrcent(onlyCanadaandtheNetherlands,with69percent,andDenmark,with75

percent,werehigher).I)OneplacetheUnitedStalesspendsmoremoneyisonspecial

servicesforthedisabledandthepoor.Morethanoneinfourchildrenherearein

programsbasedonincome-onlyfiveothercountriesserveeven1in10—andnearly6

percentgetadditionalresourcesbasedonphysicalormentalhandicaps,twiceorthree

timestherateinothercountries.J)Thereportshowsacontinuingshiftinwhichthe

UnitedStatesislosingitsstatusasthemosthighlyeducatedamongthenations.The

UnitedStateshasthehighestlevelofhighschoolgraduatesages55to64,butfallsto

fifth,behindNorway,Japan,SouthKorea,theCzechRepublicandSwitzerland,among

ages25to34.Amongcollegegraduates,itleadsintheoldergenerationbutisthird

behindCanadaandJapanintheyoungercohort(一群).WhiletheportionofAmericans

withhighschooldiplomasremainsat88percentacrossagegroups,theaverageage

amongmembercountriesisrising.Ithasgonefrom58percentofthoseages45to54,to

66percentofthoseages35to44and72percentofthoseages25to34.Ahigher

percentageofyoungpeopleinNorway,Japan,SouthKorea,theCzechRepublicand

SwitzerlandhavedegreesthanintheUnitedStales.K)"TheU.S.hasledthedevelopment

incollegeeducationandmakingeducationsortofaccessibleforeveryone,"Mr.

Schleichersaid."It'snowbecomingthenorm."

11、WhenthenumberofgraduatesintheU.S.increases,thedemandforthemisrising.

标准答案：E

知识点》析：题干：当美国毕业生的数量增加时，对他们的需求也增加了。题干关

键词numberofgraduates,increases和thedemando文中E段最后两句提到，

Mr.Schleicher说，毕业生的数量在增加，但是社会对技能是供不应求的。与题干

意思吻合，故选Eo

12、ThenewstudyshowsthattheactualteachingsalaryperhourintheU.S.is$35.

标准答案：F、一

知识点解析：题干：新的研究显示，在美国实际的教学薪水是每小时35美元。题

干关键词actualteachingsalary和$35。文中F段第二句提到，美国的教师课堂负担

更重，教学时间比其他国家的教师多了三分之一，他们每小时的薪水是35美元，

比世界平均水平41美元要低。与题干意思吻合，故选F。

13、ThosewhohavehighschooldiplomasintheU.S.accountfbr88percentofthe

Americansofallages.

标准答案：J

知识点露析：题干：在美国的各个年龄层，拥有高中学历的人占88%。题干关键

词highschooldiplomas和88%。文中J段倒数第三句提到，在各个年龄组中高中学

历的人占88%。与题干意思吻合，故选J。

14、ItisforthespecialservicesforthedisabledandthepoorthattheUnitedStatespays

moremoneythanotherOECDcountries.

标准答案：I

知识点解析：题干：对残疾人和穷人的特殊服务比其他国家花费了更多的钱。题干

关键词disabled,thepoor和moremoney。文中I段第一句提到，美国花费多的一

个地方是为残疾人和穷人提供服务。与题干意思吻合，故选【。

15^AccordingtoMr.Schleicher,theU.S.isbecomingthenorminmakingeducation

accessibleforeveryoneandcollegeeducation.

标准答案：K

知识点解析：题干：根据Mr.Schleicher美国正在变成让每个人都有机会接受教育

和大学教育成为一种口常规范。题干关键词Mr.Schleicherflaccessible0文中K

段第一句提到，在大学教育方面，美国是个领跑者，并且使每个人都可以接受教

育。与题干意思吻合，故选K。

16^Middle-schoolersspendlesstimeinstudyingforeignlanguagesandtechnology.

标准答案：H

知识点解析：题干：中学的学生在学习外语和技术方面花费的时间更少。题干关键

词Middlc-schoolcrs和foreignlanguagesandtechnologyo文中H段第二句提到，中

学的学生比外国的学生在外语和技术方面花费的时间更少。与题干意思吻合，故选

Ho

17、Comparedwiththoseinothercountries,highschoolstudentsintheU.S.spendmore

timeindoingmorepart-timejob.

标准答案：H

知识点解析：题干：和其他国家相比，美国的高中生花更多的时间做兼职工作。题

干关键词highschoolstudents和part-timejob0文中H段最后一句提到，美国的高

中生更有可能去做业余工作：64%的15到19岁的青少年在学校时就有了工作，而

世界上的平均水平为31%。与题干意思吻合，故选H。

18、NewZealandsurpassestheU.S.incollegegraduationrateforthefirsttime.

标准答案：D

知识点解析：题干：新西兰第一次在大学毕业率上超过了美国。瞿干关键词

NewZealand,collegegraduationrate和thefirsttime。文中D段最后一句提到，美

国的大学毕业率为33%。第一次不是世界上最高的。芬兰、荷兰、新西兰和英国

已经超过它了。与题干意思吻合，故选D。

19、TheU.S.government'sspendingoneducationis4.8%,lessthaninternational

averagein1998.

标准答案：B

知识点解析：题干：美国政府在1998年花费在教育上的钱是4.8%,比国际平均

水平低。题干关键词4.8%,iniernaiionalaverage和1998。文中B段最后一句提

到，在1998年，政府在教育上的花费为国内生产总值的4.8%,比国际平均水平

低5%,这种事情是第一次发生。与题干意思吻合，故选B。

20Theeconomyhasgrownfast,butteachershavenotfullybenefitfromit,said

AndreasSchleicher.

标准答案：C

知识点解析：题干：AndreasSchleicher说，经济发展很快，但是教师并没有从中

得到充分的利益。题干关键词AndreasSchleicher,economy,teachers和benefit。

文中C段第一句和第二句提到，AndreasSchleicher说经济比教育发展得快。经济

发展很好，但是教师们从中受益不多。与题干意思吻合，故选C。

DefinitionsofObesityA)Howdoesonedefinewhenapersonisconsideredtobeobese

andnotjustsomewhatoverweight?Height-weighttablesgiveanapproximateguideline

astowhetheroneissimplyoverweightorhaspassedintotheobesestage.B)TheWorld

HealthOrganizationrecommendsusingaformulathattakesintoaccountaperson's

heightandweight.The"BodyMassIndex"(BMI)iscalculatedbydividingtheperson's

weightinkilogramsbythesquareoftheirheightinmeters,andisthusgiveninunitsof

kg/m.ABMIof18.5-24.9isconsideredtobethehealthiest.ABMIofbetween25and

29.9isconsideredtobeoverweight,whileaBMIofover30isconsideredtobeobese.

C)However,itisrecognizedthatthisdefinitionislimitedasitdoesnottakeintoaccount

suchvariablesasage,genderandethnicorigin,thelatterbeingimportantasdifferent

ethnicgroupshaveverydifferentfatdistributions.Anothershortcomingisthatitisnot

applicabletocertainverymuscularpeoplesuchasathletesandbodybuilders,whocan

alsohaveartificiallyhighBMIs.AgenciessuchastheNationalCholesterolEducation

Program(NCEP)intheUSAandtheInternationalDiabetesFoundation(IDF)arestarting

todefineobesityinadultssimplyintermsofwaistcircumference.HealthEffectsof

ObesityD)Over2000yearsago,theGreekphysicianHippocrateswrotethat"persons

whoarenaturallyveryfa(areapttodieearlierthanthosewhoareslender'1.This

observationremainsverytruetoday.Obesityhasamajorimpactonaperson'sphysical,

Socialandemotionalwell-being.Itincreasestheriskofdevelopingdiabetesmellitustype

2("matureonsetdiabetes'^andalsomakesType2diabetesmoredifficulttocontrol.Thus

weightlossimprovesthelevelsofbloodglucoseandbloodfats,andreducesblood

pressure.Theassociationbetweenobesityandcoronaryheartdiseaseisalsowell-known.

CancerE)Furthermore,in2001medicalresearchersestablishedalinkbetweenbeing

overweightandcertainformsofcancer,andestimatedthatnearly10,000Britonsperyear

developcancerasaresultofbeingoverweight.Thisfigurewasmadeupof5,893women

and3,220men,withthestrongestassociationsbeingwithbreastandcoloncancers.

However,itisthoughtthatbeingoverweightmayalsoincreasetheriskofcancerinthe

reproductiveorgansforwomenandintheprostateglandformen.F)Thelinkbetween

breastcancerandnutritionalstatusisthoughttobeduetothesteroidhormones,

oestrogenandprogesterone,whichareproducedbytheovaries,andgovernawoman's

menstrualcycle.Researchershavefoundthatthemoreawomaneats,orthemore

sedentaryherlifestyle,thehigheraretheconcentrationsofprogesterone.Thislinkcould

explainwhywomenfromlessaffluentcountrieshavelowerratesofbreastcancer.

Womenfromlessaffluentnationstendtocatlessfoodandtoleadlifestyleswhich

involvemoredailymovement.Thislowerstheirprogesteronelevel,resultinginlower

predispositiontobreastcancer.G)TheTimesnewspaper,in2002reportedthatobesity

wasthemainavoidablecauseofcanceramongnon-smokersintheWesternworld!Aging

H)ResearchpublishedbyStThomas'Hospital,London,UKin2005showedacorrelation

betweenbodyfatandaging,totheextentthatbeingobeseadded8.8yearstoawoman's

biologicalage.Theeffectwasexacerbatedbysmoking,andanon-overweightwoman

whosmokes20cigarettesadayfor20yearsadded7.4yearstotheirbiologicalage.The

combinationofbeingobeseandasmokeraddedatleasttenyearstoawoman's

biologicalage,andalthoughthestudyonlyinvolvedwomen,theleadresearcher

ProfessorTimSpectorbelievesthefindingwouldalsoapplytomen.I)Theagingeffect

wasdeterminedbymeasuringthelengthoftelomeres,tiny"caps"ontheendsof

chromosomes,whichhelpprotecttheDNAfromtheageingprocess.Indeed,telomeres

havebeendubbedthe"chromosomalclock"because,asanorganismages,theybecome

progressivelyshorter,andcanbeusedtodeterminetheageoftheorganism.Beyonda

certainpoint,thetelomerebecomessoshortthatitisnolongerabletopreventtheDNA

ofthechromosomefromfallingapart.Itisbelievedthatexcessbodyfat,andthe

chemicalspresentintobaccosmokereleasefreeradicalswhichtriggerinflammation.

Inflammationcausestheproductionofwhitebloodcellswhichincreasestherateof

erosionoftelomeres.DementiaJ)Recentresearch(2005)conductedintheUSAshowsthat

obesityinmiddleageislinkedtoanincreasedriskofdementia,withobesepeoplein

their40sbeing74%morelikelytodevelopdementiacomparedtothoseofnormal

weight.Forthosewhoaremerelyoverweight,thelifetimeriskofdementiariskwas35%

higher.K)ScienlistsfromtheAgingResearchCentrea(theKarolinskaInstitutein

Swedenhavebeenabletotakeinformationsuchasage,numberofyearsineducation,

gender,bodymassindex,bloodpressurelevel,physicalactivityandgeneticfactors,

assigningeachariskscore.Theythenusedthisinformationtodeviseapredictivetestfor

dementia.Thistestwillenablepeopleatrisk,forthefirsttime,tobeabletoaffect

lifestylechangeswhichwillreducetheirriskofcontractingdementia.OtherProblems

L)Theworld-wideupsurgeinobesity,particularlyinchildren,isofmajoreconomic

concern,liabletodraineconomies.Offurtherconcernisthatresearchconductedin

Australiaandpublishedin2006,showsthatuptoonethirdofbreechpregnancieswere

undetectedbythetraditional"palpation"examination,thedangerbeinggreatestforthose

womenwhoareoverweightorobese-agrowingproportionofmothers.Thismeansthat

suchwomenarenotgettingthetreatmentrequiredtoturnthebabyaroundintimeforthe

birth,andinmanycasesrequireanemergencyCaesareansection.M)Thisisatruehealth-

carecrisis,farbiggerthanSevereAcuteRespiratorySyndrome(SARS)andultimately,

evenbiggerthanAIDS.

21、Thepredictivetestwillhelppeopletochangelifestyle,whichwillreducetheirrisk

ofcontractingdementia.

标准答案：K

知识点解析：题干：痴呆症预测实验可以使一些人改变生活方式，进而减少患痴呆

症的风险。题干关键词