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Have you ever seen a horse with toes(腳趾)？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 the cats.These small horses lived in the forest. The toes helped the horses run on the soft, wet ground.
At first, it was very hot in the forest. But the weather changed. It became very cold. Many trees could not live in cold weather. The trees died and fell. Open fields took the place of forests. The sun made the ground dry and hard.
Horsed 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 time, horses had only one hard toe on each foot. Now we call this hard toe a hoof.
小題1:How many toes did a horse have millions of years ago?
A．14B．12C．16D．13
小題2:What does the underlined word “hoof” mean in Chinese?
A．尾巴B．馬鬃C．腿D．蹄子
小題3:What was the weather like in the forest at first?
A．Very warmB．Very hotC．Very coldD．Very cool
小題4:Which is WRONG according to the passage?
A．The horses were much bigger than the cats millions of years ago.
B．The trees died and feel because the weather changed.
C．On the dry, hard land, horses needed only their middle toes for running.
D．The horses have fewer toes than before.
小題5:The main idea of the passage is that_______________.
A．horses had three toes on each back foot.B．horses lived in the hot forest
C．horses changed a lot over the yearsD．horses didn’t like the cold weather

小題1:A
小題2:D
小題3:B
小題4:A
小題5:C

試題分析：這篇短文主要介紹了馬在多年來的進化情況。
小題1:根據第一段They had four toes on each front foot. They had three toes on each back foot.計算可知4*2+3*2=14，選A。
小題2:聯系前一句After a long time, horses had only one hard toe on each foot.描述及常識，可知這個單詞指的是馬蹄，故選D。
小題3:根據第二段At first, it was very hot in the forest. 描述，可知選B
小題4:根據第一段The horses were no bigger than the cats.描述，可知那是馬比貓不大，故選A。
小題5:這篇短文主要介紹的馬的體型及馬蹄的變化，故選C，多年以來馬改變了很多。
點評：本文淺顯易懂，層次分明，學生很容易把握文章中心內容。答題中注意帶著問題閱讀短文，一般就能順利找出答題依據。對于不能直接找到根據的問題注意聯系上下文，根據短文中心總結出正確答案。
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