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

 

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

 

　　The world is not only hungry, it will also be thirsty for water. About 97% of water on the earth is sea water, or salty(咸的) water. Man can only drink or use the other 3% of the fresh water(淡水) which comes from rivers, lakes and underground.

The sea is very big. Look at the map of the world, there is more sea than land. It covers(覆盖) quarters of the earth, it looks very beautiful when the sun is shinning on it. But it can be terrible when there is a strong wind.

Some parts of the sea are very deep. There is one place near Japan. It's nearly 11 kilometers high. If we put that mountain into the sea at that place, there would be 2 kilometers of water above it!

The sea is salty. There is one "sea" called the Dead Sea. The Dead Sea is not a sea. It's a big lake in the Jordan Valley. It's the saltiest. It's near the city of Jericho. It's about 80.kilometres long, between 4.8 and 17.7 kilometers wide. The river Jordan runs into the Dead Sea. The sun is not there and the water is salty. Fish can't live in the Dead Sea and plants can't grow near it. People can't swim well in the Dead Sea, but they can't float(漂浮) on the water. The water is very blue and the air is clean. In winter, people come to the Dead Sea to enjoy the sunshine.

(   )26. Does the fresh water come from rivers, lakes and underground?

A. Yes, it does.        B. No, it doesn't.    C. Yes, it doesn't.    D. No, it does.

(   )27. The deepest place in the sea is near        .

A. Japan        B. India        C. America      D. China

(   )28. The passage tells us the sea covers          of the earth.

A.3%            B.25%          C.75%           D.97%

(   )29. The Dead Sea is        .

A.80 kilometers long            B.2 kilometers wide

C.11 kilometers deep            D.17.7 kilometers high

(   )30. According to the passage, which of the following isn't true?

A. The river Jordan runs into the Dead Sea.

B. The world will be thirsty for water.

C. The sea looks beautiful when the sun-is shining on it.

D. The Dead Sea is the saltiest sea in the world.

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.

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

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

52. 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)

53. 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.

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

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

55. 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