vibrationn.振动 sensor n.传感器
rainfalln.降雨,降雨量 graveln.砾,沙砾,砾石
注释:
2. Newcastle:纽卡斯尔。英格兰东北部的一个自治区,位于利兹以北泰纳河畔。
1. What does Such natural disasters in the first paragraph refer to?
B Earthquakes.
D Landslides.
A The initial movement is hard to spot.
C They can be destructive in a matter of hours or minutes.
3. Why do researchers develop a new device to monitor signs of landsides?
B Because the new device can be sunk into boreholes or fixed above ground.
D Because the common methods are useless.
A It is filled in with gravel.
C It is dropped into a horehole filled in with gravel.
5. According to the context,what does the word positives in the fifth paragraph mean?
B Evidences.
D Predictions.
1. D 短文第一段的第一句告诉我们,英国研究人员正在测试一种仪器,这种仪器可以通过监测土壤的振动来预警山崩。该段最后一句说,这种灾难经常在一些遭受自然灾害的国家发生,这些自然灾害包括sudden,heavy rainfall和earthquakes以及water erosion。所以D是正确选择。
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