题目列表(包括答案和解析)
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
My 4-year-old daughter Maddie once taught me a good lesson.
One day, we were taking a walk in the park. Then we 31 some kids (小孩) around an old lady, laughing at her. A little boy said, "Look at this funny lady! She is 32 and she is crying!"
Maddie walked to the woman. I wanted to 33 her away from the woman. But Maddie sat 34 the woman and held her hand. The woman looked down at Maddie and a 35 appeared on her face. Maddie gave the woman a hug（拥抱） and then left.
On the way home, I asked her, "Maddie, 36 did you go up to that woman for and hold her hand? All the other kids were either laughing at her or 37 her?"
Maddie looked at me and said, "I did that to tell her God (上帝) 38 her. It can make her feel better!" I was 39 . A 4-year-old little girl showed me what love 40 means. What a kind girl!
1. A. heard B. saw C. asked D. met
2. A. hungry B. shy C. dirty D. ill
3. A. bring B. send C. carry D. take
4. A. beside B. behind C. next D. between
5. A. question B. change C. smile D. pity
6. A. what B. how C. why D. which
7. A. worried about B. crazy about C. afraid of D. tired of
8. A. loves B. follows C. needs D. knows
9. A. glad B. strange C. excited D. surprised
10. A. usually B. really C. certainly D. finally
In North America, most students go to school by bus. The subway is also widely used in some cities. In small towns and cities, walking is still popular.
The yellow school bus is a familiar sight all over North America. It is a very convenient form of transportation because it takes students right to the entrance to the school. It also gives students opportunity to chat with their friends. However, the bus is slow and does not always pick up on time.
The subway is a means of getting around quickly in many cities. However, it is expensive and can be very crowded during rush hour. Another disadvantage of the subway is that the stops are not so close to the school, and students often have to walk considerable distance or take a bus from the subway stop to the scho
Walking has a number of advantages for those who live reasonable close to school. It's free and it provides a form of exercise. However, it's no fun if you have a large backpack full of books to carry. It's also unpleasant if the weather is either too hot or cold or wet.
1.In North America, most students usually go to school by_________.
A. school bus or subway B. car or bicycle C. taxi or car
2. For many students, the yellow school bus is convenient but it is_________.
A. too expensive B. slow and sometimes late C. crowded and dirty
3.Subways are fast but the stops are often a little bit_________the school.
A. close to B. busy for C. far away from
4.Walking is a good way for the students that live reasonable close to school and it is_________.
A. not convenient B. bad for health C. good for health
5.This passage is about_________in North America.
A. transportation B. students C. schools
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 |
| 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) |
| 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. |
| A．particles of water | B．the shore | C．the wind | D．the bottom of the wave |
| 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 |
More than 50,000,000 people live in the rainforests of the world and most of them do not hurt the forest they live in. They eat the fruits that grow on the forest trees, but they do not cut them down. They kill some animals to eat, but they do not destroy them.
When we cut down the rainforests, we destroy these forest people, too. In 1900, there were 1,000,000 forest people in the Amazon forest. In 1980, there were only 200,000.
The Yanomami live along the rivers of the rainforest in the north of Brazil. They have lived in the rainforest for about 10,000 years and they use more than 2,000 different plants for food and for medicine. But in 1988, someone found gold in their forest, and suddenly 45,000 people came to the forest and began looking for gold. They cut down the forest to make roads. They made more than a hundred airports. The Yanomami people lost land and food. Many died because new diseases came to the forest with the strangers.
The Yanomami people tried to save their forest, because it was their home. But the people who wanted gold were stronger.
Many forest people try to save their forests. Chico Mendes was famous in Brazil because he wanted to keep the forest for his people. “I want the Amazon forest to help all of us-forest people Brazil, and all the Earth,” he said. A few months later, in December 1988, people who wanted to cut down the forest killed Chico Mendes.
In Borneo, people were cutting down the forest of the Penan people to sell the wood. The Penan people tried to save their rainforest. They made blockades across the roads into the forest. In 1987, they closed fifteen roads for eight months. No one cut down any trees during that time.
In Panama, the Kuna people saved their forest. They made a forest park which tourists pay to visit.
The Gavioes people of Brazil use the forest, but they protect it as well. They find and sell the Brazil nuts(坚果) which grow on the forest trees.
【小题1】The number of the people living in the Amazon forest in 1980 was _______ of that in1900.
| A．half | B．one-third | C．two-fifths | D．one-fifth |
| A．pick fruits and kill animals to eat |
| B．use plants for food and medicine |
| C．have lived there for about ten thousand years |
| D．made the roads and the airports |
| A．carry away the gold conveniently |
| B．make people there live a better life |
| C．stop spreading the new diseases |
| D．develop the tourism(旅游业) there |
| A．包围 | B．障碍 | C．街区 | D．通道 |
| A．we need wood to build houses, so we have to cut down trees |
| B．the rainforest people have done something to protect their home |
| C．to humans, gold is more important than trees |
| D．we mustn’t cut down any trees or kill any animals |
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