问题补充：
One day Bob took two of his friends into the mountains. They put up their tents and then rode off to a forest to see how the trees were growing.
In the afternoon when they were about ten kilometres from their camp, it started to snow. More and more snow fell. Soon, Bob could hardly(几乎不) see his hands before his face. He could not find the road. Bob knew there were two roads. One road went to the camp, and the other went to his house. But all was white snow. Everything was the same. How could he take his friends back to the camp?
Bob had an idea. The horses! Let the horses take them back! But what would happen if the horses took the road to his house? That would be a trip of thirty-five kilometres in such cold weather! It was getting late. They rode on and on. At last the horses stopped. Where were they? No one of them could tell. Bob looked around. What was that under the tree? It was one of their tents!
【小题1】Bob and his two friends went to the forest to .A．build their campB．find their way home C．enjoy the mountains in the snowD．watch the trees in the forest【小题2】They could not find their way back because .A．there was only one road to their campB．they couldn’t decide which of the two roads went to their tentsC．there were no roads in the mountains at allD．the white snow covered everything【小题3】It is clear that they wanted the horses to take them to .A．Bob’s house B．the camp C．the forestD．the mountains【小题4】The horses stopped because .A．it was getting lateB．they were tired after running for a long wayC．they got to the campD．they saw Bob’s house【小题5】The story happened .A．on a cold winter dayB．on a dark snowy morningC．in a cold camp far from villagesD．at night when nothing could be seenD
答案：
(答案→)D
解析：鲍勃和朋友们去森林里观察树木的生长，却不幸遭遇了暴风雪。在雪中找不到回去的路，怎么办？幸好有马带路，他们最终安全回到了营地。
【小题1】细节理解题。 由第一的第二句话“They put up their tents and then rode off to a forest to see how the trees were growing.（他们搭起的帐篷，然后骑马到森林去观察树木如何生长。）”可知他们是去观察树木的生长。故选D。
【小题2】细节理解题。由第二段倒数第二、第三句话“But all was white snow. Everything was the same. （但都是白色的雪。一切都是相同的。）”可知雪覆盖住了所有的东西，因此分辨不出道路来了。 故选D。
【小题3】细节理解题。由第三段第三、第四句话“ Let the horses take them back! But what would happen if the horses took the road to his house?（让马把他们送回去吧 ！但马如果把路带回去他的家路，会发生什么呢？）”可知他们想让马带他们去营地。 故选B。
【小题4】细节理解题。由第三段最后几句话“ At last the horses stopped. Where were they? No one of them could tell. Bob looked around. What was that under the tree? It was one of their tents!（最后马停下来。他们在哪里？他们没有人能告诉。鲍勃环顾四周。在树底下的那是什么?这是他们的一个帐篷！）”可知他们到达了营地，所以马停下来了。故选C。
【小题5】细节理解题。 由第二段第一句话“In the afternoon when they were about ten kilometres from their camp, it started to snow.（下午当他们离开营地约 10 公里时，天开始下雪。）”可知这个故事发生在一个下雪的下午。故选A。
