ATheInternetplaysabigpartinhumanlife.Weuseitforworkandentertainment.WecanfindnewrecipesontheInternetoradviceonstayinghealthy.Wecanevenuseittolearnanewlanguageandconnectwithfamilyandfriends.AsfarastheInternetbeingapartofourlives—well,thattrainhasleftthestation.ThisexpressionmeansthereisnogoingbacktoanInternet-freelife.ButcanusingtheInternettoomuchbebadforourhealth?Itmightbe,sayresearchers.AnewstudyfindsthatheavyInternetusemaybeconnectedtohighbloodpressureinanunlikelygroup—teenagers.Thestudyresultsshowthatteenswhospendatleast14hoursaweekonlineweremorelikelytohavehighbloodpressure.Highbloodpressurecancauseheartandkidney(肾)disease.Itisalsocloselylinkedtosomeformsofdementia(痴呆),abraindisease.Dementiaismarkedbymemorydisorders,personalitychanges,andareducedabilitytoreason.TheHenryFordHospitalinDetroit,Michigandidthestudy.335youngpeoplefrom14to17yearsoldparticipatedinit.Onehundredandthirty-fouroftheteensweredescribedas“heavyInternetusers.”Researchersfoundthatoutofthese134teens,26hadhighbloodpressure.TheleadresearcherofthestudyisAndreaCassidy-Bushrow.Inastatementshesaid,“UsingtheInternetispartofourdailylifebutitshouldn’tconsumeus.”Forthepurposeofthestudy,sheexplains,teensconsideredheavyInternetuserswereonlineon“average25hoursaweek.”Ms.Cassidy-Bushrowaddsthatitisimportantforteenstotake“regularbreaksfromtheircomputersorsmartphones”andtodosome“kindofphysicalactivity.”1.WhichofthefollowingstatementsisclosestinthemeaningtotheunderlinedsentenceinParagraph2?A.Thetrainhasstoppedatthewrongstation.B.Thereissomethingwrongwiththetrain.C.LifewithouttheInternetisnowheretobefound.D.Thetrainhaschangeditscourse.2.IfapersonsuffersfromDementia,he________.A.willremembereverythingclearlyB.willchangehischaracterC.willdevelopabraincancerD.candoanalysisaccurately3.Whatisthepercentageofyoung“heavyInternetusers”withhighbloodpressure?A.26%.B.14%.C.25%.D.19%.4.Whichofthefollowingisthebesttitleofthepassage?A.TheInternetDoesHarmtotheStudy.B.TooMuchInternetMayBeBadforTeenagers.C.WeShouldStopUsingtheInternet..D.HighBloodPressureIsaroundtheCorner.BAmanthirstsforadventure.Oftenthejourneyisthedestinationitself,andyoucanlearnalotfromabriefadventureintothewild.Herearefourtypesofoutdooradventuresthateverymanshouldattempttotake.1.TheAscent(登高)Mountainclimbingandbackpackingisonewaytotrulytestyourlimits.It’satestofmentalandphysicalstrength.Besides,itoftenrequiresmonthsofpreparation.Thereareplentifulfamousmountainsnotableforbeingextremelychallengingforeventhemostdedicatedclimbers.Theonethingtheyallhaveincommonisthattheyattractacertaintypeofaperson:onewithadesiretodefeatnature.2.TheSolo(单独的)TripGoingoutintothewild,alone,isoneofthescariestthingsalotofpeoplecouldeverimagine.Ifyoutakeproperprecautions,asolotripcanbeaveryfreeingandrewardingexperience.Particularlyifyouhavesomeheavythingsgoingoninyourlife—perhapsafailingrelationship,switchingcareers,orfinancialconflict—gettingawayfromeveryoneandeverythingcanputyouintunewithnature,andwithyourself.3.TheOpenOceanWhetheryoufindyourselfinakayak(皮船),sailboat,oranyotherkindofwaterboat,gettingoutonthewaterarousessomeveryspecialfeelings.Nothingquitecomparestohavingagentlewindinyourface,asyoustareoutatthevastandglassyexpanseoftheopenwater.4.Endurance(耐力)ChallengeThisiswhenyou’reseriousaboutputtingyourlifeonhold,andgettingawayfromitall.Endurance,inthiscase,...
