广东省廉江市实验学校届高三英语复习Day 7 阅读理解7说明文Word下载.docx

广东省廉江市实验学校届高三英语复习Day 7 阅读理解7说明文Word下载.docx

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说明文词数：

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8分钟

Twonewstudiessuggestthatmodernrunningsh

oescouldincreasetheriskofinjuriestorunners.

Onestudyinvolvedsixty-eighthealthyyoungwomenandmenwhoranatleasttwenty-fourkilometersaweek.Therunnerswereobservedonatreadmillmachine（跑步机）.Sometimestheyw

orerunningshoes.Othertimestheyranbarefoot（赤脚）.

ResearchersfromtheJKMTechnologiesCompanyinVirginia,theUniversityofVirginiaandtheUniversityofColoradodidthestudy.

Theyfoundthatrunningshoescreatemorestressthatcoulddamageknees,hipsandanklejointsthanrunningbarefoot.Theyobservedthattheeffectwasevengreaterthantheeffectreportedearlierforwalkinginhighheels.ThestudyappearedintheofficialscientificjournalofTheAmericanAcademyofPhysicalMedicine.

TheotherstudyappearedinthejournalNature.ItcomparedrunnersintheUnitedStatesandKenya.TheresearcherswerefromHarvardUniversityinMassachusetts,MoiUniversityinKenyaandtheUniversityofGlasgowinScotland.

Theydividedtherunnersintothreegroups.Onegrouphadalwaysrunshoeless.Anothergroupha

dalwaysrunwithshoes.Andthethirdgrouphadchangedtoshoelessrunning.

Runnerswhowearshoesusuallycomedowntheirheelfirst.Thatpu

tsgreatforceonthebackofthefoot.Butthestudyfoundthatbarefootrunnersgenerallylandonthefrontormiddleoftheirfoot.Thatwaytheyeaseintotheirlandingandavoidstrikingtheirheel.

Harvard’sDanielLiebermanledthestudy.Hesaysthewaymostrunningshoesaredesignedmayexplainwhythosewhow

earthemlandontheirheel.Theheeloftheshoeisbiggerandheavierthanotherpartsoftheshoe,soitwouldseemmorelikelytocomedownfirst.Also,theheelgenerallyhasthickmaterialunderittosoftenlandings.

Buttheresearchersdonotsuggestthatrunnersimmediatelystartrunningbarefoot.Theysayittakessometraining.Andtherecanberisks,likerunningwhenyourfeetaretoocoldtofeelifyougetinjured.

ThestudywaspartlysupportedbyVibram,whichmakesakindoffootwearthatitsaysislikerunningbarefoot.Thefindingshavegottenalotofattention.Buttheresearcherssaytherearemanyproblemsinthewaythepresshasreportedintheirpaper.SotheyhavetriedtoexplaintheirfindingsonaHarvardWebsite.

1.What’sthemainideaofthepassage?

A.Walkinginhighheelscouldcauselessseriouseffectsthanrunningbarefoot

B.T

wonewdiscoveriesencouragepeopletoruninhighheels.

C.Runninginshoesispartlygoodtorunners.

D.Twonewstudiesproverunningwithoutshoesislessriskytorunnersinmostcases.

2.Whichpartofourbodycouldbeinjuredifweruninrunningshoes?

A.Toes.B.Hips.C.Feet.D.Legs.

3.Whatcanwelearnfromthepassage?

A.Thewaythatwerunbylandingonthefrontormiddleofourfootcouldavoiddamagingourheel.

B.Weshouldstartrunningbarefootinnotime.

C.Runninginmodernrunningshoescouldcausemoreseriouseffectsthanrunninginhighheels.

D.Wewon’tbeinjuredifwerunbarefoot.

4.Whatisthewriter’sattitudetowardtheuseofthemodernrunningshoes?

A.Persuasive.B.Negative.

C.Objective.D.Supportive.

Passage2

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Ifyouseeagroupofpeopledancingandsingingonthestreetorintherailwaystation,youdon’t

needtofeelsurprised.Theyareaflashmob（快闪族）,whichisagroupofpeoplewhocometogethersuddenlyinapublicplace,dosomethingunusualforabriefperiodoftime,andthenquicklybreakup.TheyareusuallyorganizedwiththehelpoftheInternetorotherdigitalcommunicationnetwork.Atapredeterminedtime,theygatherandperformsomedistractions（消遣）suchaswavingtheirhandsandexchangingbooks.Then,theyquicklybreakupbeforethepolicecanarrive.Usingmobilephones,theflashmobcanchangeitslocationifthefirstonehasbeenreplacedforanyreason.

BillLasik,senioreditorofHarper’sMagazine,organizedthefirstflashmobinManhattaninMay,2003andthefirstsuccessful

flashmobcametogetheronJune3,2003—afterthefirstattemptwasfoiledatMacy’sdepartmentstore.Lasikclaimedthattheactivitywasdesignedtomakefunofhipsters（赶时髦的人）,andcallattentiontotheculturalatmosphere.

Flashmobgatheringscansometimesshockpeople.Suchanactivitymightseemamusinganduntrue,butitalsomightfrightenpeoplewhoarenotawareofwhatistakingplace.Undoubtedly,flashmobscanserveasgoodpoliticaltoolsinanydirection.Theyalsohavegreateconomicpotential,suchasusingflashmobstoadvertiseaproduct.

Theflashmobisnowbecomingmoreandmorepopular.Peopleuseittodomanythings.Forexample,in2009,MichaelJackson’sfanstookpartinaflashmobtorememberhim.HundredsofhisfansgatheredsinginganddancingMichael’sfa