B．It's much healthier than running.

　　C．It's a money­saving physical exercise.

　　D．It's becoming more and more popular.

　　C　[细节理解题。根据第二段中的"What I love about walking...your head and your wallet."可知，步行对人的心脏和大脑都有好处并且可以省钱。故C项正确。]

　　3．What did scientists at the Lawrence Berkeley National Laboratory find?

　　A．Walking helps people with sleep problems.

　　B．Walking contributes to curing heart disease.

　　C．Walking 150 minutes per week can save lives.

　　D．Walking is better than running in some cases.

　　D　[细节理解题。根据第三段第三句中的"found that quick walking reduces the risk of heart disease more effectively than running"以及下文将步行和跑步从几个方面进行的对比来看，前者优于后者。故D项正确。]

　　4．In which section of a newspaper can we read this text?

　　A．Comment. B．Lifestyle.

　　C．Education. D．Science.

　　B　[推理判断题。纵观全文可知，本文主要介绍了健康生活方式中的最简单有效的方式--步行。由此可推知，可从报纸上介绍生活方式的版块读到该文章。故B项正确。]

　　Ⅱ.完形填空

　　It was a cold winter morning.Half asleep at the train station，I stared into the distance， 1 for the train to take me to my 2 in Boston.The world was quiet.The very few people on the street kept to themselves， 3 their steaming cups of coffee.

Reaching into my pocket as the 4 was getting close，my hand searched for the $ 20 bill to pay my fare.The pocket was 5 ！I searched through my bag and then I felt 6 .Unless the money dropped from the sky，I'd be 7 here.