高山警报：当积雪开始“集体逃亡”
外刊精读 口语朗读
Have you ever heard of an avalanche? Avalanches are sudden natural disasters where a lot of snow and ice slide down the mountains. 1.
In fact, snow from avalanches can move as fast as two hundred miles per hour. That is three times faster than a car on a highway.
2. In the mountains like the Alps and the Himalayas, there are snow and ice all year round. After big storms, new snow puts more pressure on the snow that is already in the mountains. The pressure can make the old snow slide.
3. Heavy snow moving down the mountains may pull other things along, such as trees and rocks. A powerful avalanche can damage everything in its path.
Luckily, few people live in areas with a high risk of avalanches. 4.
Most people who may lose their lives in avalanches are ski lovers. They want to have fun in the mountains. However, they also want to stay safe. 5. Even though the experts can warn people of the risk, there are still some accidents each year. If you are a ski lover, remember to pay attention to experts' warnings.
语篇类型：说明文
难度星级：★★★★★
建议用时：/10 min
参考答案：P35
一、选择合适的句子补全短文，将序号填写在横线上。
A. Avalanches are very dangerous.
B. Most avalanches happen after big storms.
C. So not many people die from avalanches each year.
D. As they slide, the snow and ice move faster and faster.
E. Experts can usually tell when an avalanche might happen.

一、1. D 根据“In fact, snow from avalanches can move as fast as two hundred miles per hour.”可知，设空处后介绍了雪崩时雪的具体移动速度，所以此处引出雪和冰的移动速度的话题，选项D“当它们滑动时，雪和冰的移动速度越来越快。”符合语境。故选D。2. B 根据“After big storms, new snow puts more pressure on the snow that is already in the mountains. The pressure can make the old snow slide.”可知，本段介绍了雪崩发生的原因，选项B“大多数雪崩发生在大暴风雪之后。”符合语境。故选B。3. A 根据“Heavy snow moving down the mountains may pull other things along, such as trees and rocks.”可知，本段讲述了雪崩带来的危害性，选项A“雪崩非常危险。”符合语境。故选A。4. C 根据“Luckily, few people live in areas with a high risk of avalanches.”可知，没多少人居住在雪崩常发生的地方，选项C“所以每年因雪崩丧生的人并不多。”衔接上文，符合语境。故选C。5. E 根据“Even though the experts can warn people ...”可知，设空处描述专家警告的相关内容，选项E“专家通常可以判断雪崩何时可能发生”衔接下文，符合语境。故选E。

二、推理判断 以下是一些在雪崩易发地的安全贴士(tips)，请圈出合适的单词。
●Always check the weather forecast 1. (before/after) going skiing.
●Stay on marked trails and 2. (avoid/keep) going off-piste.
●Carry an avalanche beacon(雪崩信标) and know 3. (what/how) to use it.
●Travel 4. (with/without) a partner and let someone know your 5. (hobbies/plans).
●If an avalanche catches you, fight hard to stay 6. (on/under) top of the snow! And make space in front of your face so you can 7. (see/breathe).
词汇积累 语法充电
avalanche /ˈævələ:nʃ/ n. 雪崩
disaster /dɪˈzɑ:stə(r)/ n. 灾难
slide /slaɪd/ v. 滑动
path /pɑ:θ/ n. 路径
hear of sth表示“听说过/得知某事”，侧重了解存在，是否听说过。hear about则表示了解关于某事的一些信息，但不一定非常详细；后面除了接名词/代词，还可以接动名词或that从句(that可以省略)。

二、1. 圈 before 为了安全起见，应该在滑雪之前查看天气预报，以便了解潜在的雪崩风险。
2. 圈 avoid “off-piste”指的是非滑雪道的野雪区域。为了安全，应该避免进入非滑雪道区域。
3. 圈 how 携带雪崩信标是为了在雪崩发生后能够被搜救人员找到。重要的是知道如何使用它，确保在紧急情况下能够正确操作。
4. 圈 with 结伴而行可以互相帮助，增加安全性。
5. 圈 plans 要让别人知道你的(滑雪)计划，这样万一你发生意外，别人可能察觉到，以便及时救援。
6. 圈 on 如果被雪崩卷入，尽量保持在雪的上面，这样可以减少被埋在深处的可能性，增加获救机会。
7. 圈 breathe 被雪掩埋的情况下，最重要的是保持呼吸畅通，而不是看见(see)。