CNN news 2011-11-19 加文本

词汇讲解：

1. volcano n. 火山
例句：The eruption of a volcano is spontaneous.
火山的爆发是自发的。

2. tourist n. 旅行者, 观光客
例句：The tourists went sightseeing in the suburbs of the city.
游客们游览了市郊。

3. uninhabited adj. 无人居住的;无人烟的;荒凉的
例句：He was banished to an uninhabited island for a year.
他被放逐到一个无人居住的荒岛一年。

4. threat n. 可能造成威胁的人[事, 想法]
例句：The use of nuclear weapons is a horrible threat to the species.
核武器对人类是一个严重威胁。

5. estimate v. 估计; 评价, 评估
例句：The gardener estimated that it would take him four hours to weed the garden.
园丁估计他给花园除草需要四个小时。

6. spew v. (使某事物)喷出, 射出
例句：The volcano spewed molten lava.
火山喷出了熔岩。

7. ban vt.取缔, 查封, 禁止
例句：The new military government has banned strikes and demonstrations.
新的军人政府禁止罢工和示威活动。

8. obesity n. 肥胖;过胖
例句：Sugar and fat can more easily lead to obesity than some other foods.
糖和脂肪比其他食物更容易导致肥胖。

9. awareness n. 察觉;觉悟;意识
例句：Environmental awareness has increased over the years.
这些年来人们的环境意识增强了。

10. solve vt. 解决; 解答；解释, 揭示
例句：He finally solved the difficulty of transportation.
他终于解决了运输的困难。