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.______ is really moving forward when you look at the wave.
A.Water | B.The basketball | C.Water and wave energy | D.Wave energy |
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) |
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. |
The underlined word “it” ( Paragraph 3) refers to “________”.
A.particles of water | B.the shore | C.the wind | D.the bottom of the wave |
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 |
March 25 is the 17th National Day of Education on the Safety of Elementary and Middle School Students. The theme (主题)of the day this year is to give students more knowledge(知识) about how to keep safe.
How can you keep yourselves safe? Here are some suggestions(建议).
When there is a fire: Shout out “Fire”! Call 119! Try to find a safe exit(出口) and get away quickly. Don’t use a lift(电梯). Use a piece of cloth to cover your mouth and nose.
When there is an earthquake(地震) at school: Stay calm(冷静的). Follow the teachers’ instructions(指导). Quickly move under the desk. Don’t jump out of windows or run out.
When you are on the street: Wait for the green traffic light. Look left and right before crossing the street. Don’t run across the street.
When you are eating: Wash fruits and vegetables carefully before eating them. Check the expiration dates(保质期) of the food. Don’t eat the food if it looks or smells bad.
When you are at school: Take care not to fall down or hurt yourself. Don’t run, jump or push while going upstairs(上楼) or downstairs. Take care of yourself all the time.
Suggestions on |
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Situations |
What you should do |
What you shouldn’t do |
Be on |
Shout out “fire”! |
Take a lift. |
Have an earthquake |
Stay calm. Follow the teachers’ instructions. Move |
Jump Run out. |
Be on the street |
Wait for the green traffic light. Look left and right before |
Run across the street. |
While |
Wash fruits and vegetables |
Eat |
While at school |
Look |
Jump, run or push while going upstairs or downstairs. |
Newspapers are very important in our daily life. Many people begin their day by reading the paper. In this way they learn what is going on in the world. Sometimes, however, they didn't have the time to read the news carefully and must be pleased with a quick look at the front page. At other times they may be in such a hurry that they have time only to have a quick look at the headlines(标题).
There are newspapers to please every reader. In big cities there are many types with several different editions every day. In some towns there are fewer newspapers and perhaps only one edition each day. In some places the paper is printed weekly.
Most papers have several editions(版本), especially on Sundays when the edition is larger than usual. There are, besides the front page with the most important news, the sports news, the amusement(娱乐)page, a business page and so on.People read newspaper to ____.
A.learn about the most important news | B.be pleased |
C.learn about whatever they want | D.get some information |
Reading the headlines, people can know ____.
A.what the passages are about | B.what is going on |
C.learn about the most important news | D.about sports |
In big cities newspapers are usually printed ____.
A.daily | B.weekly |
C.monthly | D.yearly |
Most papers have ____ on Sundays than usual.
A.more types | B.more pages |
C.less types | D.less pages |
If you want to see a film, you’d better read ____ in a newspaper.
A.the business page | B.the front page |
C.the sports page | D.the amusement page |
Once a clever man was crossing a turbulent river. He wished to amuse himself by talking to the boatman.
"Do you know mathematics?" he asked.
"No sir." answered the boatman.
"Then you have lost one quarter of your life," said the wise man. "Do you know history?"
"No sir." answered the boatman.
"Then you have lost three quarters of your life." Just then a sudden gust of wind overturned the boat. "Do you know how to swim?" asked the boatman.
"No," answered the wise(="clever)" man.
"Well then," replied the boatman, "you have lost your whole life."The clever man knew a lot of knowledge except(除了)_______.
A.mathematics | B.philosophy(哲学) |
C.history | D.swimming |
The clever man thought the boatman had lost ______ of his life.
A.one-fourth | B.half |
C.three fourths | D.whole |
When a gust of wind overturned the boat, ______ lost his life.
A.the boatman |
B.the boatman and the clever man |
C.the clever man |
D.None of them |
The story told us ______ .
A.not to be proud(骄傲的) | B.to learn to swim |
C.to be a boatman | D.not to learn knowledge |
What will the weather(天气) be like? Some people say they can know what the weather will be like from birds. When they see birds fly high out to the sea, they know it is a nice day, because birds don't like to fly out if it rains. When the weather is bad, the birds will come back to the beach. A big wind may come with a rain. Birds do not like to fly in a big wind. They may sit in a tree when rain is coming. Other animals can alsotellthe weather. It is a cloudy day. The rain is coming. Chickens(小鸡) are not quiet, and they are running here and there. Frogs (青蛙)are making big noise in the pool. If it is a nice day, the frogs will come out of the water.What’s the best title(题目) for the passage(短文)?
A.Weather | B.Birds | C.Sea | D.Rain |
When there is rain, frogs are not .
A.in the pool | B.out of the water |
C.making a big noise | D.swimming in the water |
What does the underlined(划线的)word “tell” mean in the article(文章)?
A.告诉 | B.判断 | C.说 | D.谈话 |
A School Report
Name:Edward Scott |
School: Kelvin Grove State High School,London |
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Grade |
7 |
Term ending |
May 6th |
Subjects |
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Maths |
He is a little weak in this, but he has tried his best to catch up with others. |
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Science : |
He can work out many difficulties. Well done! |
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English : |
He is the best in the class. Keep it up! |
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French: |
His reading is very good, and he can remember many words. |
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History: |
He is not so good at this, but he has done better than before. |
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Geography: |
He knows the names of many places in the world. |
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Music |
He does like pop songs, and he sings very well. |
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Remarks(评语) |
Edward has the ability to do a lot better. More work is needed next term. |
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Class teacher |
Ivy |
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Principal |
M.L Martin |
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School reopens |
11, September |
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Edward’s best subject is ________.
A.Science | B.English |
C.Geography | D.French |
Edward is NOT so good at ________.
A.maths and history | B.science and geography |
C.history and French | D.music and English |
According to(根据) the form(表格), which of the following sentences is true?
A.Edward can’t sing songs very well. |
B.School will begin again on May 6th. |
C.Edward can do better if he works hard next term. |
D.Edward doesn’t do well in science. |