【正确答案】 A

【答案解析】[解析] 6-10 W1: Because of their protected status, a lot of bears have lost their fear of people. This may make them appear tame, but they're still potentially very dangerous. Bears are wild animals. One or two bear attacks occur each year in Glacier Park. The majority of attacks occur because people have surprised the bear. M: What should we do if we surprise a bear? W1 : You should try to avoid encounters in the first place by being alert. And make noise. Talk loud. Holler. Bears will usually move out of the way if they hear people approaching. W2: Some people say to carry bells, or put bells on your pack. W1: Most bells---even the so--called bear bells--are not loud enough. Calling out or clapping hands at regular intervals are better ways to make your presence known. M: But isn't it kind of rude to make a lot of noise in the woods? I mean, people go there for peace and quiet. W1: In bear country, noise is good for you. Hiking quietly endangers you, the bear, and other hikers. People sometimes assume they don't have to make noise while hiking on a well-used trail. Some of the most frequently used trails in Glacier Park are surrounded by excellent bear habitat. You can't predict when and where bears might appear along a trail. M: That's for sure. I remember my surprise when a black bear charged me. It must have been running away from hikers who surprised it on the trail ahead of me. W1: Don't assume a bear's hearing is any better than your own. Some trail conditions make it hard for bears to see, hear, or smell approaching hikers. You should be especially careful near streams, against the wind, or in dense vegetation. Stay with your group and, if possible, avoid hiking early in the morning, late in the day, or after dark, when bears are more likely to be active. Bears spend a lot of time eating, so avoid hiking in areas like berry patches or fields of glacier lilies. W2: How will the bear act if we surprise it? W1: Bears react differently to each situation. They may appear to tolerate you, and then attack without warning. The most important advice I can give you is never to approach a bear intentionally. Each bear will react differently, and its behavior can't be predicted. All bears are dangerous and should be respected equally. 6. What is the discussion mainly about? The speakers mainly discuss hiking safely in bear habitat. The speakers are a naturalist and members of a hiking club. The naturalist says: One or two bear attacks occur each year in Glacier Park," In bear country, noise is good for you. Hiking quietly endangers you, the bear, and other hikers; Some trail conditions make it hard for bears to see, hear, or smell approaching hikers.

【正确答案】 A

【答案解析】[解析] What does the naturalist think of bear bells? The naturalist thinks bear bells are not effective in keeping away bears. The naturalist says: Most bells--even the so-called bear bells--are not loud enough. Calling out or clapping hands at regular intervals are better ways to make your presence known.

【正确答案】 C

【答案解析】[解析] Listen again to part of the discussion. Then answer the question. "Don't assume a bear's hearing is any better than your own. Some trail conditions make it hard for bears to see, hear, or smell approaching hikers. You should be especially careful near streams, against the wind, or in dense vegetation." Why does the naturalist say this: "You should be especially careful near streams, against the wind, or in dense vegetation." The naturalist's purpose is to warn that bears many not notice you in certain conditions in which they cannot see, hear, or smell yot: approaching.

【正确答案】 A

【答案解析】[解析] What can be inferred about the behavior of bears? The naturalist says: They may appear to tolerate you, and then attack without warning. You can infer that bears may respond to people suddenly.

【正确答案】 B、D

【答案解析】[解析] Which situations should hikers avoid? Hikers should avoid approaching a bear: The most important advice I can give you is" never to approach a bear intentionally. Hikers should also avoid hiking when it is dark: ...avoid hiking early in the morning, late in the day, or after dark, when bears are more likely to be active.