| 1. | An active volcano vomits forth smoke and lava .
活火山喷出烟雾和熔岩。 |
| 2. | This is an active volcano which spews out lava every year .
这是个每年喷熔岩的活火山。 |
| 3. | "it cannot be anything but a volcano in a state of eruption", said he .
“这不会是别的，是座活火山”，他说。 |
| 4. | He has been able to tell us more about active volcanoes than any man alive .
他能够比当今的任何人讲述更多的关于活火山的情况。 |
| 5. | The polish scientist has spent his life-time studying active volcanoes and deep caves in all parts of the world .
波兰科学家花费了毕生精力研究世界各地的活火山和深岩洞。 |
| 6. | In fact, mount saint helens appears to be the youngest, most recently active volcano in the cascade range .
事实上，圣海伦斯火山是喀斯特山脉中最年轻又是最近期活动的活火山。 |
| 7. | Hawaiian volcanoes are among the most thoroughly studied and systematically monitored active craters in the world .
夏威夷火山是世界上研究得最透澈并且受到最严密监视的活火山之一。 |
| 8. | Stromboli, however, is of signal interest because it is one of the few volcanoes in the world that is continuously active .
然而，斯特龙博利火山特别值得注意，因为它是世界上少数持续活动的活火山之一。 |
| 9. | It is most risky to go and examine an active volcano
去探察活火山是非常危险的。 |
| 10. | This is my first time to see the fire mountain
这是我第一次见到真正的活火山。 |
