与美国小学生一起学英文第8册 第22期:高原

 　　Plateaus 高原

　　A huge flat area on the ground is called field. 地面上的大块平地叫做平原。

　　Then what is a huge high flat area? It is a plateau. 那大块的平坦高地又是什么？高原。

　　A plateau can be made by various activities. 高原可能是由多种活动造成的。

　　Volcanic¹ activities, earthquakes or other events make plateaus. 火山活动、地震或其他事件都会导致高原的形成。

　　What is the biggest and highest plateau in the world? 世界上最大最高的高原是什么？

　　It is the Tibetan plateau. 它就是青藏高原。

　　How high is the Tibetan plateau? 青藏高原有多高？

　　It is higher than a small mountain but still it is not a mountain. 它比小山还高，但仍不是山脉。

　　There is less oxygen on a plateau than a normal field. 高原上的氧气比正常平原上的少。

1 volcanic   

adj.火山的；象火山的；由火山引起的

参考例句：

• There have been several volcanic eruptions this year.今年火山爆发了好几次。
• Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。