As we all know, the ocean moves. But waves breaking on the beach make the ocean fun. When you stand on the shore and look at the waves, it seems like the water is moving towards you. But the water is not really moving forward. The moving you see is wave energy. And wave energy comes from the wind.
Let’s think about how this works. As wave energy passes through the water, the energy makes particles （粒子） of water move up and down. Just give you an example of a wave passing under a basketball. We put a basketball on the sea. When the wind blows, a wave comes from behind the basketball. The basketball moves up to the top with the wave. Then the wave continues and leaves the basketball behind. The basketball looks lower, but it doesn’t move forward. That’s because the wave energy just moves the water which is under the basketball.
　  So why can you see a wave knock you down on the shore？When a wave moves toward the shore, the bottom of the wave slows down because it meets the ocean floor. But the top, which is called crest(浪峰), keeps moving. The different action causes the wave to fall over or break onto the shore. If a wave is very large, it carries a lot of energy when it hits the land. As time goes by, waves can break up and carry away the rocks and other things on the shore. Shorelines are changing all the time because of wave action.
【小题1】______ is really moving forward when you look at the wave.

完形填空（15分）

Some people think that all wild animals are dangerous. But in fact, very few of them will   1   a man if he leaves them alone. If you meet a lion or an elephant, I guess you will   2 ; but even a lion will avoid(躲避)a man if it is not very   3 . Lions and tigers only kill and eat men when they have grown too old and too weak to catch their usual   4  , such as deer and  5   small animals. If you see a wild elephant, perhaps you will be  　6  . However, elephants usually run away at once if you don’t attack them. Some animals get very frightened if they only smell a man, some stand and look at him for a moment   7  they run away, some take no notice at all but walk away  8  in another direction. Wild animals only attack   9  when they are afraid that people want to harm(伤害) their   10 , or when the hunters shoot at them and make them angry.

1.                A．bite           B．attack          C．protect   D．hide

2.                A．come nearer     B．break down      C．stay alive  D．run away

3.                A．thirsty          B．excited         C．tired D．hungry

4.                A．food           B．fish            C．things    D．drinks

5.                A．others         B．other          C．another  D．any

6.                A．excited         B．pleased         C．frightened D．angry

7.                A．before         B．after           C．as soon as D．while

8.                A．luckily          B．noisily          C．quietly   D．loudly

9.                A．dogs           B．people         C．children  D．other

10.               A．neighbours      B．friends         C．young babies   D．parents

完形填空（15分）
Some people think that all wild animals are dangerous. But in fact, very few of them will   1   a man if he leaves them alone. If you meet a lion or an elephant, I guess you will   2 ; but even a lion will avoid(躲避)a man if it is not very   3 . Lions and tigers only kill and eat men when they have grown too old and too weak to catch their usual   4  , such as deer and  5   small animals. If you see a wild elephant, perhaps you will be  　6  . However, elephants usually run away at once if you don’t attack them. Some animals get very frightened if they only smell a man, some stand and look at him for a moment   7  they run away, some take no notice at all but walk away  8  in another direction. Wild animals only attack   9  when they are afraid that people want to harm(伤害) their   10 , or when the hunters shoot at them and make them angry.

When we look at the moon through a telescope(望远镜), we can see lines and circles(圆形物). People used to(过去常常) think that this was the moon’s face and that there was a man in the moon! This is not true. There is no man in the moon.

　　What do we know about the moon? First of all, the moon is much smaller than the earth. Days and nights on the moon are very long. One day on the moon is as long as two weeks on the earth. One night is also as long as two weeks on the earth. In the daytime the moon is very hot and at night is very cold.

1.On the moon ____________.

　　    A. there is a man　            B. there is a woman　

C. there are a lot of people　    D. there is no man

2.Now we know _____________________.

　　    A. some facts about the moon　　B. nothing about the moon

　　    C. little about the moon　　 D. few facts about the moon

3.Which of the following is true?

　　    A. The moon is bigger than the earth. 

B. The earth is much bigger than the moon.

　    　C. The moon is as big as the earth.　 

D. The earth isn’t as big as the moon.　　

4. One day on the moon is as long as ______________.

　　    A. seven days on the earth　　 B. fourteen days on the earth.

　　    C. 240 hours on the earth　　　D. two years on the earth

5.The moon is very hot _____________.

A. all the time　          B. during the night　

C. in the daytime　       D. at night and in the daytime

As we all know, the ocean moves. But waves breaking on the beach make the ocean fun. When you stand on the shore and look at the waves, it seems like the water is moving towards you. But the water is not really moving forward. The moving you see is wave energy. And wave energy comes from the wind.

Let’s think about how this works. As wave energy passes through the water, the energy makes particles （粒子） of water move up and down. Just give you an example of a wave passing under a basketball. We put a basketball on the sea. When the wind blows, a wave comes from behind the basketball. The basketball moves up to the top with the wave. Then the wave continues and leaves the basketball behind. The basketball looks lower, but it doesn’t move forward. That’s because the wave energy just moves the water which is under the basketball.

　  So why can you see a wave knock you down on the shore？When a wave moves toward the shore, the bottom of the wave slows down because it meets the ocean floor. But the top, which is called crest(浪峰), keeps moving. The different action causes the wave to fall over or break onto the shore. If a wave is very large, it carries a lot of energy when it hits the land. As time goes by, waves can break up and carry away the rocks and other things on the shore. Shorelines are changing all the time because of wave action.

1.______ is really moving forward when you look at the wave.

A．Water            B．The basketball      C．Water and wave energy   D．Wave energy

2.Match the sentences with the pictures and the right answer.

(1) The basketball moves up to the top with the wave.

(2) The basketball continues and leaves the basketball behind.

(3) When the wind blows, a wave comes from behind the basketball.

A．a—(2) b—(1) c—(3)                     B．a—(3) b—(1) c—(2)

C．a—(1) b—(3) c—(2)                     D．a—(3) b—(2) c—(1)

3.Which of the following is NOT true according to the passage?

A．Wave energy comes from the water.

B．Large waves carry plenty of energy.

C．Wave action makes shorelines change all the time.

D．The bottom of the wave is easy to slow down.

4.The underlined word “it” ( Paragraph 3) refers to “________”.

A．particles of water   B．the shore          C．the wind          D．the bottom of the wave

5.The main idea of this passage is ______.

A．what makes particles of water move         B．how a basketball moves on the ocean

C．how wave energy causes wave action        D．why a wave can knock you down