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第PAGE\*MERGEFORMAT13页共NUMPAGES\*MERGEFORMAT13页 2021年6月英语四级考试阅读冲刺系列(5)快速阅读 PartⅡReadingComprehension(SkimmingandScanning)(15minutes)Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.Forquestions1-7,choosethebestanswerfromthefourchoicesmarkedA),B),C)andD).Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.GuideDogsFormostdogowners,theexpression"worklikeadog"doesn'tmakemuchsense.Butsomedogshappilyperformverydemandingjobsformuchoftheirlife,puttinginafullday'sworkjustliketherestofus.Guidedogs,oneofthemostfamiliarsortsofworkingdog,provideaninvaluableservicetohumans.Everyday,theyhelptheirmastersgetfromplacetoplacemoresafely.WhatGuideDogsDoGuidedogshelpblindorvisuallyimpairedpeoplegetaroundintheworld.Inmostcountries,theyareallowedtoanyplacewherethepublicisallowed,sotheycanhelptheirhandlersbeinanyplacetheymightwanttogoto.Todothis,aguidedogmustknowhowto:Keeponadirectroute,ignoringdistractionssuchassmells,otheranimalsandpeopleMaintainasteadypace,totheleftandjustaheadofthehandlerStopatallcurbsuntiltoldtoproceedTurnleftandright,moveforwardandstoponcommandRecognizeandavoidobstaclesthatthehandlerwon'tbeabletofitthrough(narrowpassagesandlowoverheads)StopatthebottomandtopofstairsuntiltoldtoproceedBringthehandlertoelevatorbuttonsLiequietlywhenthehandlerissittingdownHelpthehandlertoboardandmovearoundbuses,subwaysandotherformsofpublicVehiclesObeyanumberofverbalcommandsAdditionally,aguidedogmustknowtodisobeyanycommandthatwouldputthehandlerindanger.Thisability,calledselectivedisobedience,isperhapsthemostamazingthingaboutguidedogsthattheycanbalanceobediencewiththeirownassessmentofthesituation.Thiscapacityisextremelyimportantatcrosswalks,wherethehandleranddogmustworkverycloselytogethertonavigatethesituationsafely.Dogscannotdistinguishthecoloroftrafficlights,sothehandlermustmakethedecisionofwhenitissafetoproceedacrosstheroad.Thehandlerlistenstotheflowoftraffictofigureoutwhenthelighthaschangedandthengivesthe
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