5. The height of the land varies from 700 metres above sea level to over 2,000 metres and is　 home to a great diversity of plants and animals .

这里地面的高度由海拔700米到2，000米不等，是多种多样动植物的生长地。

4. Having studied volcanoes now for more than twenty years , I am still amazed at their beauty as well as their potential to cause great damage .

我现在已经从事火山研究20多年了，但我仍然惊羡于它们的美丽以及它们潜在的巨大破坏性。

3. I was about to go back to sleep when suddenly my bedroom became as bright as day .

我刚要再睡，突然我的卧室亮如白昼。

2. Having collected and evaluated the information , I help other scientists to predict where lava from the volcano will flow next and how fast it will flow .

收集和评估这些信息之后，我就帮助其他科学家一起预测熔岩接着将往何处流，流速是多少。

1. Have you ever considered how weak humans are compared with a volcano , hurricane or earthquake？

你有没有想过，与火山、飓风和地震比起来，人类是多么软弱？

37.　 cancel one’s appointment with sb. 取消和某人的约会

36.　 be bored with sb. / sth. 对某人/某物厌烦

35.　 glance through 匆匆看一遍

34.　 give birth to sb. 生小孩

33.　 take a bath 沐浴