它移动的距离很小。但已显示出这种趋势的火山可能会引起火山移动前坡的灾难性坍塌。穆雷博士的团队强调，目前没有证据表明这种情况会在埃特纳火山发生，但说在未来时间里，需密切关注火山滑动的情况。

1. 词汇表 geologist 地质学家

a network of 由…形成的网络

high-precision 高精度的

instrumentation 仪器设备

volcanic cone 火山锥

motion 移动

catastrophic 灾难性的

flank（火山）侧面，坡

slide 滑动

2. 阅读理解：请在读完上文后，回答下列问题 。 1. What did the geologist place around Mount Etna during his study?

2. How many years of data have the scientists acquired to establish that Mount Etna has slid?

3. True or false? According to the research team, there is no reason to believe that the volcano’s flank is about to collapse.

4. Which verb in the text means ‘regularly check and observe the progress of something’?

3. 答案 1. What did the geologist place around Mount Etna during his study?

The geologist placed a network of high-precision GPS stations around the mountain.

2. How many years of data have the scientists acquired to establish that Mount Etna has slid?

11 years.

3. True or false? According to the research team, there is no reason to believe that the volcano’s flank is about to collapse.

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