Watching(观看) auroras (极光)is fun(有趣的， 有趣) and exciting(令人兴奋的), but normally you can only see them in places far north like Alaska and Canada. The movement of the aurora across the sky is usually slow enough to easily follow with your eyes but they can also pulsate, flicker, or even move like waves. During solar maximum, auroras are seen as far south as Florida, even Mexico!
根据文章中答案相关句的内容判断，问题句提供了正确的信息。
5.You cannot see the Northern Lights(北极光) unless(除非) you are in Alaska (阿拉斯加)or Canada(加拿大).
A. right B. wrong C. not mentioned
5.B.细节题。利用问题句中的特征词( Alaska，Canada， Northern Lights )共同作为答案线索， 在文章中查找答案相关句：
(第4题答案相关句)Watching auroras is fun and exciting, but normally(通常) you can only(仅仅， 唯一的) see(看见) them in places far(很远) north(在北方)like(象) Alaska and Canada. The movement of the aurora across the sky is usually slow enough to easily follow with your eyes but they can also pulsate, flicker, or even move like waves. During solar (太阳的)maximum(最大量), auroras (极光)are seen(被看见) as far(远至) south as Florida(弗罗里达), even Mexico(墨西哥)!
第2个划线句说“当太阳风暴达到最高峰时， 远至弗罗里达， 甚至墨西哥南部地区都能看见极光”， 由此可见问题句提供的信息不正确。
6.Tens of thousands of (好几万)tourists(游客) take special(特别的，专门的) trips(旅行) to Norway(挪威) and Sweden(瑞典) every year (每年)to watch(观看， 监视) the Northern Lights(北极光).
A. right B. wrong C. not mentioned
6.C. 利用问题句中的特征词/结构( Tens of thousands of tourists，Norway, Sweden Northern Lights )共同作为答案线索， 在文章中查找答案相关句：顺着上一题的答案位置往下查找答案相关句， 结果发现以上的细节信息词/结构(除了Northern Lights)以外都没有出现， 因此判断该句内容在文章中没有被提到。
Watching auroras is fun and exciting, but normally you can only see them in places far north like Alaska and Canada. The movement of the aurora across the sky is usually slow enough to easily follow with your eyes but they can also pulsate, flicker, or even move like waves.(第5题答案相关句) During solar maximum, auroras are seen as far south as Florida, even Mexico!
Auroras often seem to be very close to the ground, but the lowest aurora is still about 100 kilometers above the ground, a distance much higher than clouds are formed or airplanes can fly. A typical aurora band can be thousands of kilometers long, a few hundred kilometers high, but only a few hundred meters thick.
We hope you are able to travel to far-north places like the Arctic Circle and see the Northern Lights at least once during your lifetime. We know you will never forget it!
7.An aurora(极光) is generally(通常) close to (接近)the ground(地面) and is very long(长的) and thick(厚的).
A. right B. wrong C. not mentioned
7.B. 细节题。利用问题句中的特征词( aurora)和修饰词及带有修饰词的结构(close to the ground, long, thick)共同作为答案线索， 在文章中查找答案相关句：
Watching auroras is fun and exciting, but normally you can only see them in places far north like Alaska and Canada. The movement of the aurora across the sky is usually slow enough to easily follow with your eyes but they can also pulsate, flicker, or even move like waves.(第5题答案相关句) During solar maximum, auroras are seen as far south as Florida, even Mexico!
Auroras often seem to (看起来)be very close to the ground, but the lowest (最低的)aurora is still(仍然) about 100 kilometers above(在...上方) the ground, a distance(距离) much higher than clouds(云层) are formed (被形成)or airplanes(飞机) can fly(飞翔).A typical(典型的) aurora band(带子) can be thousands of (数千)kilometers long, a few(几个， 少数) hundred kilometers high, but only a few hundred meters(米) thick.
We hope you are able to travel to far-north places like the Arctic Circle and see the Northern Lights at least once during your lifetime. We know you will never forget it!
从答案相关句的内容可以看出：极光事实上并不接近地面， 极光也不厚， 因此问题句提供的信息错误。
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