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.

A．Water

B．The basketball

C．Water and wave energy

D．Wave energy

【小题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)

【小题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.

【小题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

【小题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

Traveling is one of the most important activities and people have been interested in it for many years. Modern traffic develops fast, so traveling to different places has become much easier than before.

　　Staying healthy while traveling can make your trip happier.But do you know how to keep healthy during a trip？The following information may be useful for you.

　　　Before traveling：

　　●Wear comfortable shoes，a hat and sunglasses.

　　●Take some necessary medicine with you.They can be used when you get sick or have other problems.

　　●If you do lots of sports like walking or climbing during your trip，you should do some exercise for weeks or months before you leave.

　　　While traveling：

　　●Be sure not to eat dirty food or bad fruit.

　　●Have enough time to take a rest during your trip.

　　●Tap water is not safe，so drink bottled water and always clean the cover on the bottle.

判断下列句子是否与短文内容相符，相符的填“T”，不相符的填“F”。

1.Traveling has become much easier because of the modern traffic development.

2.You should wear less clothes before you leave your home for a trip.

3.You had better not be too tired while you are having a trip.

4.If you walk more and eat more while traveling, your trip will be happier.

5.The passage mainly talks about activities while traveling

 

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

 

阅读理解

　　Swimming is very popular in summer. People like swimming in summer because water makes people feel cool. If you like swimming and swim in a wrong place, it may not be safe. These years, more than ten people died while they were enjoying themselves in the water, and most of them were students. But some people are still not careful in swimming. They often think they swim so well that nothing can happen to them in water. Summer is here again. If you go swimming in summer, don't forget that some better swimmers have died in water. They died because they were not careful, not because they could not swim. So don't get into water when you are alone. If there is a “No Swimming” sign, don't get into water, either. If you remember these, swimming will be safer.

1．Swimming is popular in summer because ________.

[　　]

A．people can enjoy the cool in water

B．the water isn't cold

C．few people like swimming

D．all the students like swimming

2．Some good swimmers died in water because ________.

[　　]

A．they were too young

B．they were not careful

C．they didn't swim well enough

D．they were very interested in swimming

3．Some people are still not careful in swimming because ________.

[　　]

A．they are not sure where is safe

B．they think they are good at swimming

C．the water is not deep (深)

D．there is not a “No Swimming” sign

4．In this passage the writer wants us to remember “________”.

[　　]

A．Swimming is always dangerous

B．Swimming is a good sport

C．Swimming will be safer

D．Be safe in swimming

　　Always play in a safe place. A park is a safe place because there are no cars or trucks. But don't talk to anyone you don't know. Never go with a stranger into motorcar. Before crossing a road, stop and look both ways. Look left, look right, look left again. Keep away from houses or buildings that are being built or knocked down. Something might fall on your head, or you might cut yourself on broken glasses. Medicines or pills can be dangerous. Never eat any pills or medicines you find in the cupboard. Wear a life jacket whenever you go out in a boat. Even if you are not in the open sea, and the water is not in the open sea, and the water is not deep, you should have on your life jacket. It is easy to fall out of a boat. Do not put your head out of a car, bus or train. Many children have been killed by doing this.

根据短文内容判断正（T）误（F）。

(1) The passage is about safety.

(　　)

(2) When you play in a park, you must look left and right.

(　　)

(3) Don't go near an unfinished building or put your head out of a car.

(　　)

(4) Medicines are dangerous. Don't have them.

(　　)

(5) Put on a life jacket whenever you are in a boat.　　　　 (　　)