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.

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.

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

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. 1.

   ______ is really moving forward when you look at the wave

   1. A.
      Water
   2. B.
      The basketball
   3. C.
      Water and wave energy
   4. D.
      Wave energy
2. 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.
   

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

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

   1. A.
      Wave energy comes from the water
   2. B.
      Large waves carry plenty of energy
   3. C.
      Wave action makes shorelines change all the time
   4. D.
      The bottom of the wave is easy to slow down
4. 4.

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

   1. A.
      particles of water
   2. B.
      the shore
   3. C.
      the wind
   4. D.
      the bottom of the wave
5. 5.

   The main idea of this passage is ______

   1. A.
      what makes particles of water move
   2. B.
      how a basketball moves on the ocean
   3. C.
      how wave energy causes wave action
   4. D.
      why a wave can knock you down

Basketball is still a young game. It's over a hundred years old. In the winter of 1891, a certain college was having some trouble with its boy students. The weather was bad and the students had to stay indoors. As they couldn't play outdoors, they were unhappy, and some even got into fights from time to time.

　　Some of the teachers, at the college asked Dr. Naismith to invent a game so that the students might have something to play with. It was not easy to invent such a game because it had to be played indoors , and the court (球场) was not very large.

　　Dr. Naismith thought for a few days and invented a kind of ball game. It was a fast, wonderful game with much moving and passing of the ball. It was played between two teams. To make a score , the ball had to be thrown into the basket ten feet(英尺) above the floor on the wall . At each end of the court there was such a basket. At first, Dr. Naismith wanted to throw the ball into a box. As he could not find boxes of the right size, he had to use fruit baskets instead. That is how the game got its name.

1. How long is it since basketball was invented?

A．1000 years                            B．More than 100 years

C．1100 years                            D．Less than 100 years

2.The students felt unhappy because _______.

A．they had much homework to do

B．they often got into fights

C．they couldn't play outdoors

D．they had little time to study

3.Who asked Dr. Naismith to invent a game?

A．Some students                         B．Some teachers

C．Some students' parents                   D．Some of his friends

4.When a student ______ , he makes a score.

A．receives the ball. 　　　　　　

B．throws the ball to another student

C．runs quickly with the ball in his hand

D．throws the ball into the basket

5. Which sentence is right?

A．Dr. Naismith had to use fruit to throw the ball.

B．It was easy to invent the game.

C．The students could go outdoors when the weather was bad.

D．The ball had to be thrown into the basket five feet above the floor.