Unit1Howdoyougothere？Stopataredlight.Thetrafficlightsarethesameineverycountry.Therearealwaysthreelights:red,yellowandgreen.Redmeans“Stop”.Yellowmeans“Wait",andgreenmeans“Go”.InChina,driversdriveontherightsideoftheroad.IntheUS,driversdriveontherightside,too.InEnglandandAustralia,however,driversdriveontheleftsideoftheroad.Ifyougobycar,bybikeoronfoot,youmustknowthetrafficrules.F全世界60亿人口中靠右行的约40亿，靠左行的20亿。车辆靠左行驶，是以英国为首的岛派国家的行驶原则，源于欧洲中世纪人们骑马步行的风俗习惯。当初，上马石都设在道路的左侧。目前车辆靠左行驶的国家有：英国、日本、印度、印度尼西亚、巴基斯坦、斯里兰卡、澳大利亚、新西兰、泰国、爱尔兰、马耳他、新几内亚、斐济、汤加、瑙鲁、牙买加、圭亚那、马来西亚、新加坡、南非等三十多个国家。2.Ifyougobycar,bybikeoronfoot,youmustknowthetrafficrules.Thetrafficlightsarethe_____ineverycountry.Therearealways_____lights:red,yellowand______.Redmeans“______”.Yellowmeans“____”,andgreen_______“Go”.InChina,drivers_____onthe______sideoftheroad.IntheUS,______driveontherightside,too.InEnglandand__________,however,driversdriveonthe____sideoftheroad.Ifyougobycar,bybikeoronfoot,you____knowthetraffic_____.（）当你在中国骑自行车时，应该：A．keepleftB.keepright（）当你在英国驾驶时，应该：A．keepleftB.keepright（）2.--Howmanytrafficlightsarethereineverycountry?--____A.Red.B.Red，greenandyellowC.Three.（)3.InEngland,driversdriveonthe____sideoftheroad.A.leftB.middleC.right（）4.Yellowlightmeans____.A．waitB.goC.stop（）5.InChina,driversdriveonthe____sideoftheroad.A.leftB.middleC.right（）6.InEngland,driversdriveonthe____sideoftheroad.A.leftB.middleC.rightthesamethedifferences