C．learn more about an avalanche

　　D．know when an avalanche may happen

　　解析：　细节理解题。由第五、六两段中的内容可知，雪崩收发器可以帮助受困者发出求救信号。

　　答案：　B

　　2．One reason Driskell loves his job is that .

　　A．he can get close to nature

　　B．he can get to know many people

　　C．he can learn a lot from the job

　　D．he can make a lot of money

　　解析：　推理判断题。由最后一段中的especially you are right out there in nature most of the time可知A项说法正确。

　　答案：　A

　　3．We can learn from the text that avalanches .

　　A．have become the worst natural disasters in Colorado

　　B．have stopped more and more people going skiing

　　C．can sometimes be prevented before they happen

　　D．won't hurt the members on the ski patrol

　　解析：　推理判断题。由第三段中所讲的一些措施可知，有些雪崩是可以预防的。

　　答案：　C

　　4．What would be the best title of the text?

　　A．The art of skiing

　　B．What causes avalanches?

　　C．What makes Driskell a ski patrol?

　　D．Ski patrol：born for avalanche safety

　　解析：　标题归纳题。文章主要讲述了滑雪救护队是如何预防和控制滑雪场中可能出现的一些危险情况的。

　　答案：　D

　　B

Glen Nevis is known as the "outdoor capital" of Scotland.Britain's highest mountain，Ben Nevis，rises above the area，while the waters of the River Nevis flow through the rocky valley below.The wonderful scenery attracts walkers and climbers all through the seasons，though it's cold in winter.