英语听力：探索发现 2013-01-02 冰河新新州 Ice Age Oasis—9

 The cold climate conifer forests of the north displaced broadleaved woodlands. Plants and animals were gradually pushed south to find a warmer climate. Florida became a refuge from the cold. Down here is where the Ice Age north met the subtropical south. Today in a cool wooded part of the Sunshine State, you can still see some of these northern refugees. 

 

The valleys along the Apalachicola River are home to many species that were forced here in the Ice Age e and now remain far away from their populations further north, like the copperhead snake and an astonishing variety of amphibians¹. 

 

During the Ice Age, Florida was crucial to the survival of many such mild-weather species. They couldn't have withstood the cold of north, and without this refuge, they would simply have become extinct. Another leftover², but one that arrived from the opposite direction.

1 amphibians   

两栖动物( amphibian的名词复数 )； 水陆两用车； 水旱两生植物； 水陆两用飞行器

参考例句：

• The skin of amphibians is permeable to water. 两栖动物的皮肤是透水的。
• Two amphibians ferry them out over the sands. 两辆水陆两用车把他们渡过沙滩。

2 leftover   

n.剩货，残留物，剩饭；adj.残余的

参考例句：

• These narrow roads are a leftover from the days of horse-drawn carriages.这些小道是从马车时代沿用下来的。
• Wonder if that bakery lets us take leftover home.不知道那家糕饼店会不会让我们把卖剩的带回家。