阅读理解

　　Colour helps you see things. But man and some monkeys and apes (猿)are the only mammals (哺乳动物) that can see colour. To any other mammal, such as the dog, the world looks like a black-and-white photo. Dogs hunt mainly by listening and sniffing (闻).

　　Like other animals, dogs see best when things move. The animals they hunt seem to know this. A hunted rabbit or deer will “freeze”. Then the dog may not see it at all.

　　Birds can see colour. They need to, because they fly and need to find places to land．Colour helps them judge distance and shape. In this way they are able to catch bugs (昆虫) in the air or to light on branches.

　　Some birds see things even better than you do. The birds that eat bugs can see them from far away. And even a very young bird can see a hawk high in the sky. So sharp eyes and a sense of colour help birds find food and also help them find where their enemies are.

(1)________can see colour.

[　　]

A．All the animals

B．All the mammals

C．Man and dogs

D．Birds and monkeys

(2)In order to find their food, dogs mainly use their _______

[　　]

(3)The word “freeze” in the passage means _________.

[　　]

A．the hunted animals are frozen on the ground because of cold weather

B．the hunted animals' temperature is becoming lower and lower until it drops below 0℃

C．the hunted animals will stop running and stay in the same place without movement 

D．the hunted animals are so frightened that they can't move any longer

(4)Colour helps birds_______

[　　]

A．see better than man

B．see better than dogs

C．see how colourful the world is

D．see clearly where food and enemies are

(5)To dogs,they see best when things are ________

[　　]

介词、副词填空

A ball, which is full 　　   either hot air or light gas, can fly 　　   the sky.

阅读理解

　　Colour helps you see things. But man and some monkeys and apes (猿)are the only mammals (哺乳动物) that can see colour. To any other mammal, such as the dog, the world looks like a black-and-white photo. Dogs hunt mainly by listening and sniffing (闻).

　　Like other animals, dogs see best when things move. The animals they hunt seem to know this. A hunted rabbit or deer will “freeze”. Then the dog may not see it at all.

　　Birds can see colour. They need to, because they fly and need to find places to land．Colour helps them judge distance and shape. In this way they are able to catch bugs (昆虫) in the air or to light on branches.

　　Some birds see things even better than you do. The birds that eat bugs can see them from far away. And even a very young bird can see a hawk high in the sky. So sharp eyes and a sense of colour help birds find food and also help them find where their enemies are.

(1)________can see colour.

[　　]

A．All the animals

B．All the mammals

C．Man and dogs

D．Birds and monkeys

(2)In order to find their food, dogs mainly use their _______

[　　]

(3)The word “freeze” in the passage means _________.

[　　]

A．the hunted animals are frozen on the ground because of cold weather

B．the hunted animals' temperature is becoming lower and lower until it drops below 0℃

C．the hunted animals will stop running and stay in the same place without movement 

D．the hunted animals are so frightened that they can't move any longer

(4)Colour helps birds_______

[　　]

A．see better than man

B．see better than dogs

C．see how colourful the world is

D．see clearly where food and enemies are

(5)To dogs,they see best when things are ________

[　　]

A ball, which is full 　　   either hot air or light gas, can fly 　　   the sky.

任务型阅读（10分）

The sea has always interested man. From it he can get food, minerals, and treasure.    1   But he could not go far beneath its surface.

    2   However, he is not a fish. He must breathe air, so he can’t stay under the water’s surface for any length of time. To explore deep water, man faces even more dangers and problems.

　　A diver who wants to stay under water for more than a few minutes must breathe air or a special mixture of gases.   3   He can carry a tank of air on his back and breathe through a nose and a mouthpiece. Water weighs 800 times as much as air. Tons of water pushes against a diver deep in the sea.   4  

When a diver is under great pressure, his blood takes in some of the gases he breathes. As he rises to surface, the water pressure becomes less. If the diver rises too quickly, the gases in his blood form bubbles(气泡). The diver is then suffering from the bends(潜水夫病). The bends can cause a diver to double up in pain.    5  

E. He can wear a diving suit and have air pumped to him from above.

F. The water pressure can cause a diver to breathe with difficulty.

G. Man wants to explore deep into the sea.