6、us4.modern5.visitherson听力录音材料:I.听短文,根据短文内容,判断下列句子正误,正确的用“A”表示,不正确的用“B”表示。短文读两遍。听短文前,你们有20秒钟的时间阅读下列句子。 HowlongdoesittaketorunacrossAmerica?Amandiditinjust100days.HisnamewasMarkAllison.Hewas40yearsold,andhewasfromtheUnitedKingdom.Heranacross13states,includingCalifornia,OhioandNewYork. Ma