Russ Fee was asleep inside his tent last summer in Canada's Banff National Park when

文章大意：本文是一篇记叙文，讲述了在加拿大班夫国家公园的野外露营的罗斯·费狼口救人的故事。
4.B 细节理解题。根据第一段中的“Russ Fee was asleep inside his tent last summer in Canada's Banff National Park”及“a neighboring tent”可知，事发时，这两个家庭都在加拿大班夫国家公园的野外露营，故B项正确。
5.A 细节理解题。根据第三段中的“He ran at the beast, kicking it in the hip. The wolf dropped Matt and emerged from the tent.”可知，费朝那条狼跑去，猛踢它的屁股，狼丢下了马特，马特因而得救，故A项正确。
6.C 推理判断题。根据第五段“"Attacks are so rare that a person here has a greater chance of being killed by a dog, lightning, a bee sting, or a car collision with a deer than being injured by a wolf" said Matt.”可知，马特说：“在这里，狼袭击人的事件非常罕见，被狗、闪电、蜜蜂蜇伤或开车与鹿相撞的几率比被狼咬伤的几率大得多”，由此可知，在那里，狼很少袭击人，故C项正确。
7.A 推理判断题。根据文章的讲述，特别是根据第三段中的“He ran at the beast, kicking it in the hip.”可知，看到狼袭击人后，费立即朝那条狼跑去，猛踢它的屁股救人，这表明费很勇敢，故A项正确。