填空题 {{B}}第二节 短文理解 1{{/B}}
阅读下面短文，从[A] (Right)、[B] (Wrong)、[C] (Doesn't say)三个判断中选择一个正确选项。
Have you ever seen a horse with toes (脚趾)? Millions of years ago, horses had many toes. They had four toes on each front foot. They had three toes on each back foot. The horses were no bigger than cats.
These small horses lived in the forest (森林). Their many toes helped the horses run over the soft (柔软的) , wet ground.
It was very hot in the forest. Bat the weather changed. It became cold (寒冷的,伤风). Many trees could not live in cold weather. The trees died and fell (落下;下降). Open fields took the place of forests. The sun made the ground dry and hard.
Horses began to change, too. They began to get bigger. This took a long time. On the dry, hard land, horses needed only their middle toes for running. Their middle toes became hard. After a long while, horses had only one hard toe on each foot.
单选题 Many, many years ago, horses had seven toes.
【正确答案】 B
【答案解析】错误。文章提到They had four toes on each front foot。They had three toes on each back foot，所以一共是14个脚趾。
单选题 Millions of years ago, horses were as big as cats.
【正确答案】 A
【答案解析】第一段末句：The horses were no bigger than cats。
单选题 At that time, the cat-like horses could climb (攀登,上升) trees.
【正确答案】 C
【答案解析】文中只提到古代的马大小像猫，但没说古代马能否像猫一样爬树。
单选题 The sun made the ground dry and so the trees died.
【正确答案】 B
【答案解析】错误，文章第三段提到是寒冷的气候使树木死亡，不是太阳。
单选题 The passage tells us why horses today have only one toe on each foot.
【正确答案】 A
【答案解析】正确，这正是文章的中心思想。