阅读理解在云南专升本公共英语考试中占60分，总共有6篇阅读理解，每题2分，共30题。不管是分值占比上还是考试需要花费的做题时间上，阅读理解都将是重中之重。下面一起来练习阅读理解题，同学们测试一下看你是否都能做对。

Passage 1A dolphin(海豚)looks more like afish than certain fishes do . It is an excellent swimmer. The dolphin seems toflash through the water . Like fish, dolphins are completely at home in thewater. There they play , feed, sleep, and give birth to their young. Dolphinslive in the sea and can live only in the sea.

Yet they are notfish. A dolphin must come to the surface to breathe. Fish can take oxygen fromthe water. Dolphins cannot. Like us, they breathe with lung and must take theiroxygen from the air . And they are mammals(哺乳动物).

Most mammals areland animals. Dolphins are evolved from land animals. Long ago, dolphinancestors(祖先)leftthe land for the sea. Among the animals was a kind that would become thedolphin we know. No one is sure exactly what kind of animal it was. But thereis reason to think it was related to grass-eating animals like the cow. Moderndolphins are fish-eaters.Yet their stomachs are like those of animals that eatplants. The make-up of their blood is also like that of grass-eating animals.1. The best title for this passage is .A. Dolphins B.Fish C.Mammals D.Cows

2. What can we learn from the first paragraph?A. A dolphin is a special kind of fish. B. Dolphinscan’t swim very quickly. C. Dolphins can live only in the sea. D. Dolphins produce their babies on land.

3. Different from fish，dolphins .A. live on land. B.breathewith lungs. C. breathe under water. D.livewithout oxygen.

4. Dolphins are evolved from .

A.fish-eating mammals. B.sea animals. C. grass-eating fish. D.land animals.

5. What can be inferred from the passage?A.Dolphins have highly evolved. B.Mammals don’t eat plants at all. C.All fishes developed from land animals.D.Dolphins were once closely related tohumans.

下面开始揭晓答案

1、A

2、C

3、B

4、D

5、A