Question

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 smaller than cats.
These small horses lived in the forest.Their many toes helped the horses run over the soft wet ground.
It was very hot in the forest.But the weather changed.It became cold.Many trees couldn’t live in cold weather.The trees died and fell.Forest became open field.The sun made the ground dry and hard (堅(jiān)硬).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.At last their middle toes became hard.
小題1:Long ago, the horse had four toes on each of its __________.

A．back feet

B．front feet

C．right feet

D．left feet

小題2:The cats were __________ the horses at that time.

A．a(chǎn)s big as

B．smaller than

C．bigger than

D．a(chǎn)s small as

小題3:When the weather changed, __________.

A．many trees grew well in cold weather	B．a(chǎn)nimals began to change too
C．cats were older than the horses	D．horses were the same as they are

Answer 1

小題1:B
小題2:C
小題3:B

試題分析：這篇短文講述了當(dāng)氣候發(fā)生變化時，動植物都要進(jìn)行適當(dāng)?shù)淖兓瘉磉m應(yīng)氣候，才逐漸形成了當(dāng)今的這些物種。
小題1:根據(jù)They had four toes on each front foot.可知選B。
小題2:根據(jù)The horses were smaller than cats.可知選C。
小題3:根據(jù)短文最后一段描述可知當(dāng)氣候變化時，無論動植物都開始變化。故選B。
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