XIII. OASES.

 These green spots in the great deserts are the counterparts of Islands in the oceans.

 

If not thrown up and fed by water upheaval¹, how are they produced? Are they volcanic²? The Oasis³ of Ammonium, or Siwah, six miles long and eight wide, contains the ruins of the famous temple and oracle⁴ of Ammon, visited by Alexander the Great, and celebrated⁵ for the fountain of the Sun, whose waters are warm at morning and evening, and cold at noon.

 

There are several oases⁶ not long distances west of the Nile in the Great Desert. The ancients considered them as Islands in a Sea of Sand, but they are really elevated lakes, although not manifesting themselves much at the surface, but underlying⁷ so closely as to render the climate too unhealthy to live in during the summer and[72] autumn, being of a swampy⁸ character, and yet very productive in winter and spring. Where do these waters soak in to produce such spots in the deserts?

1 upheaval   

n.胀起，(地壳)的隆起；剧变，动乱

参考例句：

• It was faced with the greatest social upheaval since World War Ⅱ.它面临第二次世界大战以来最大的社会动乱。
• The country has been thrown into an upheaval.这个国家已经陷入动乱之中。

2 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。

3 oasis   

n.（沙漠中的）绿洲，宜人的地方

参考例句：

• They stopped for the night at an oasis.他们在沙漠中的绿洲停下来过夜。
• The town was an oasis of prosperity in a desert of poverty.该镇是贫穷荒漠中的一块繁荣的“绿洲”。

4 oracle   

n.神谕，神谕处，预言

参考例句：

• In times of difficulty,she pray for an oracle to guide her.在困难的时候，她祈祷神谕来指引她。
• It is a kind of oracle that often foretells things most important.它是一种内生性神谕，常常能预言最重要的事情。

5 celebrated   

adj.有名的，声誉卓著的

参考例句：

• He was soon one of the most celebrated young painters in England.不久他就成了英格兰最负盛名的年轻画家之一。
• The celebrated violinist was mobbed by the audience.观众团团围住了这位著名的小提琴演奏家。

6 oases   

n.（沙漠中的）绿洲( oasis的名词复数 )；（困苦中）令人快慰的地方（或时刻）；乐土；乐事

参考例句：

• There was a hundred miles between the two oases. 这两片绿洲间有一百英里。 来自辞典例句
• Where underground water comes to the surface, there are oases. 地下水流到地表的地方，就成为了绿洲。 来自互联网

7 underlying   

adj.在下面的，含蓄的，潜在的

参考例句：

• The underlying theme of the novel is very serious.小说隐含的主题是十分严肃的。
• This word has its underlying meaning.这个单词有它潜在的含义。

8 swampy   

adj.沼泽的，湿地的

参考例句：

• Malaria is still rampant in some swampy regions.疟疾在一些沼泽地区仍很猖獗。
• An ox as grazing in a swampy meadow.一头牛在一块泥泞的草地上吃草。