04统考英语A试题-网络教育.doc

一、阅读理解 When it comes to walking off those excesses（过剩）, a lengthy hike once a day will do you far more good than nipping down to（一溜烟跑） the shops every couple of hours ? even if the short walks add up to the same amount of time, say exercise researchers in Britain. But walks of any length beat sit