A、 The role of Florida in the American Revolution.
B、 The discovery of Florida by Ponce de Leon in 1513.
C、 The history of the cultivation of oranges in Florida.
D、 The popularity of Florida oranges in London in the 1770' s.

【正确答案】 C

【答案解析】解析：主旨大意题。短文第一段主要讲Jesse Fish成为佛罗里达州第一个桔子大亨，接着第二段又讲了在西班牙的统治下，殖民者在佛罗里达州种满了桔子树。由此可知短文主要讲了佛罗里达州桔子种植的历史。故选C。

A、 London.
B、 St. Augustine.
C、 The Antilles.
D、 New York.

【正确答案】 D

【答案解析】解析：信息明示题。根据短文第一句指出Jesse Fish，a native New Yorker，可知他来自纽约。所以选D。

A、 Jesse Fish.
B、 Ponce de Leon.
C、 Columbus.
D、 British sailors.

【正确答案】 B

【答案解析】解析：信息明示题。短文第二段指出it was most likely Ponce de Leon who introduced oranges to the North American continent when he discovered Florida in 1513．由此可知Ponce de Leon将桔子引进了佛罗里达州。故选B。

A、 Because oranges tended to dry out during shipping.
B、 Because Florida oranges were very small.
C、 Because there was no great demand for oranges in Europe.
D、 Because oranges were plentiful in their home country.

【正确答案】 D

【答案解析】解析：事实细节题。根据短文最后一句they saw no need to start commercial groves because oranges were soabundant in Spain可知当时西班牙桔子丰富多产，所以西班牙人在新大陆并没有开始商业种植桔子，只是利用桔子树的药用价值。故选项D正确。