When we look up at the night sky, we see the twinkling stars. But what we don’t see is the space junk (垃圾) floating up the space. Now there may be as many as 170 million pieces of space junk in Earth’s orbit (轨道). If they hit our satellites or spaceships, they can destroy them and make them stop working.
Facing the big danger by space junk, scientists are working hard on its cleanup although it’s really a tough job and takes a long time. The European Space Agency (ESA) plans to use a “junk truck”, ClearSpace-1, in 2025. It’s a spaceship that can find its target and move close to it, then catch it with its four “arms”. This is not going to be an easy job because even the smallest junk circles Earth as fast as 8 kilometers a second. Once it catches the junk, the spaceship will carry it back to Earth. This is because the junk will burn up when traveling through the atmosphere (大气层), so there won’t be much left when it reaches Earth. However, the spaceship itself will burn up at the same time.
Since the original cleanup plan will cause huge loss, scientists are trying to work out other plans. One new plan is to send a spaceship carrying special tools, which are used to shoot to stick into the space junk, moving it away from the orbit and throwing it into Earth’s atmosphere.
Space junk is a huge threat which endangers our satellites or spaceships, but why haven’t space agencies around the world done anything yet? One reason is the cost. To catch one piece of space junk larger than 10cm wide would cost between $4,000 and $60,000 (about 30,000 to 436,000 yuan) per kilogram.
With space traffic increasing, all nations have to work together to find out more ways to reduce space junk, or there will be more in-space accidents.
阅读短文，根据短文内容完成填空。（每空限填一词）
| SOME INFORMATION ABOUT SPACE CLEANING PLAN: ✧ Scientists are trying to work out space cleaning plans because space junk is ✧ ESA plans to use ClearSpace-1, a ✧ The space junk travels so ✧ In the new space cleaning plan, a spaceship is used to ✧ Although the |
相似题推荐
【推荐1】Men have always wondered about the earth they live on and about the ① ______ above them.
When early men looked at the night sky, they asked themselves a lot of questions. They looked at the moon, and wondered what this strange bright object in the sky was. They did not understand why it changed its shape from night to night. They looked at the stars and planets. They also wondered why some of them changed their positions, while others did not. ② 他们也思考地球的形状。Most early people believed the earth was flat.
③ In different parts of the world, there were different ideas about the universe. The ancient Greeks were the first people to study the universe more scientifically. In the sixth century BC Pythagoras put forward the idea that the world was round. However, he could not explain why people at the bottom of the world did not fall off.
It was not until the sixteenth and seventeenth centuries that scientists found the answers to some important questions. ④ With the help of Galileo’s telescope, people could see the sky more clearly, and find the positions of the stars and planets. Finally in 1665,Isaac Newton explained to the world what gravity (重力) was and people at last understood why they did not fall off the earth.
1. 在文中①处填写一个单词，使得句意完整、上下文通顺2. 根据文章内容回答问题。
What questions did early men ask themselves when they looked at the night sky? Write down one of them.
3. 将文中②句翻译成英语。
4. 将文中③句翻译成汉语。
5. 写出文中④句的同义句，每空限填一词。
Galileo’s telescope made
【推荐2】Venus（金星） is close to the earth. It is the second planet from the sun. The earth is the third planet from the sun. Venus is similar (相似的) to the earth in size and mass (质量). It is often described as the earth’s “sister”.
Scientists have learned about Venus for a long time. First they looked at Venus through telescopes (望远镜). But scientists could not see Venus well because of thick clouds on Venus. So they made guesses about it.
For a long time, scientists thought that Venus had water and plants. They thought Venus might have animals too. But they didn’t know for sure.
Then scientists found a way to learn more about Venus. In the 1960s, they began sending probes (航天探测器) to Venus. The probes flew through the thick clouds. They took pictures of Venus up close. They found out many things too. The probes sent the pictures and things they found out back to the scientists.
The scientists learned a lot from the probes. First they learned that most of their guesses were not right. And they learned that Venus is very hot.
After that, scientists knew they could not send people to Venus. But they still wanted to know more about it. So they sent new probes. These new probes took great pictures of the planet. The pictures showed that Venus has plains and mountains! And in some ways, Venus looks like the earth.
根据材料内容完成下列任务。
1—2题简要回答下列问题；3题判断正(T)误(F)；4题翻译划线句子；5题选择正确答案。
1. How are Venus and the earth similar?
2. Why is it hard to see Venus well through a telescope?
3. Scientists began to send probes to Venus about 60 years ago.
4.
5. Where does the passage probably come from?
| A．A diary. | B．A storybook. |
| C．A science magazine. | D．A medical dictionary. |
THE MOON
Son: Look, Dad! How bright and near the moon looks tonight!
Father: But it isn’t as near as it looks.
Son: I know it’s far away from the earth.
Father: It’s three hundred and eighty thousand kilometers away.
Son: How far is that?
Father: Well, it takes more than three days to get there by spaceship.
Son: A spaceship flies very, very fast, doesn’t it?
Father: Yes. It flies at about eleven kilometers a second. In 1969 two Americans got to the moon by spaceship. That was one of the most exciting moments of that year.
Son: They didn’t find any living things there, did they?
Father: No, they didn’t. It’s too hot in the day and too cold at night. Nothing can live on the moon.
Son: I hear walking on the moon is more difficult. It’s like jumping and flying. Is that so?
Father: Yes, isn’t that interesting! Everything is much lighter on the moon. You can jump much higher on the moon than on the earth.
Son: I wish I could fly to the moon in a spaceship one day. It must be great fun.
1. How does the moon look tonight?2. How far is the moon from the earth?
3. How far can a spaceship fly in an hour?
4. Why can you jump much higher on the moon than on the earth?
5. What does the underlined word “that” mean?
In today’s world, it’s natural to feel tired sometimes during those long working days. Luckily, there are some things you can do to fight tiredness.
If you aren’t drinking plenty of water by now, you should! But remember that juice, soft drinks and the likes aren’t what you should drink if you are tired, because they are full of sugar that in fact causes you to lose much water from your body. Water is king, so make a habit to drink a glass of water whenever you feel tired. You can put a full glass of water next to you, you will remember to take a sip (啜一口) here and there throughout your activity. You’ll be surprised how quickly drinking water can get rid of your tiredness.
Sometimes you feel tired because you aren’t active, especially when you have to work at a computer or sit at a desk all day. Movement, any type of movement in exercise, can help you. Moving your body creates an increased blood flow which in return increases your energy and defeats (战胜) tiredness. Also it makes your breathe deeper and then you’ll be more energetic immediately. So, all that you need to do is just get up, stretch (伸展) a little bit, or walk around if you can.
Laughing a little can also help you fight your tiredness. You don’t have to laugh out loud. Simply finding something interesting is good. So start reading some jokes on the Internet, listen to some radio shows you like, or watch some funny videos on Youku. You will notice that once you start laughing, you won’t be tired any more.
How to | ||
Opinion | Nowadays, it’s | |
Some | Drink much water. | *Don’t drink juice, soft drinks and other drinks when you’re tired because they have much *Keep a full glass of water |
Be | * *Get up, stretch a little bit, or walk around if | |
Laugh a little. | *It’s unnecessary to laugh out *Just enjoy yourself by reading | |
【推荐2】Hot dry noodles are a kind of traditional food of Wuhan. They have a history of about 90 years. They are a kind of traditional breakfast food in Wuhan, and are often sold in streets in other cities. Hot dry noodles can be offered from 5 in the morning to 12 at night in Wuhan.
It is said that in the early 1930s, there was a small restaurant. One day, the owner, Li Bao put some oil into his noodles. The next day, he boiled (煮) those noodles and added (添加) other condiments (调味料). His noodles soon became very popular because they were very delicious. Many people asked Li Bao what kind of noodles it was. Li Bao answered, “Hot dry noodles.”
The way of boiling hot dry noodles is different from other noodles. First, mix (混合) the cooked noodles with oil and dry them. When they are going to be eaten, put them in boiling water, mix them with green onions and many other condiments, and the noodles will be ready to eat. The finished noodles are very delicious. In 2013, hot dry noodles were the No. 1 among China’s Top 10 Famous Noodles.
1. Where is hot dry noodles from?2. What did people think of Li’s hot dry noodles when they were first made?
3. What’s the first step of making hot dry noodles?
4. What are hot dry noodles mixed with when they are going to be eaten?
5. Are hot dry noodles one of the most famous noodles in China?
【推荐3】Cooperation（合作）and competition are both important. They’re necessary for a person to achieve success in life.
Learn to be cooperative with others. No one likes a selfish or greedy person. However, everyone likes a cooperative and friendly person. Everything we do today, whether in doing business or making friends, depends on our ability to get along with one another. In our society, most tasks need cooperation in order that they can be finished successfully. So we must try to be cooperative. Each person is like a small part of a machine. If one part is out of order, the machine can’t be running well. Besides, transportation and communication systems are developing quickly, and people all over the world can keep in touch with each other more easily. It’s hard for a person that is away from the society to have a deep understanding of the world he lives in. Cooperation is becoming more and more important for a person to lead a good life.
Being competitive also has a place in life. If you want to get more success and be better than others, you must work harder and study more carefully. The desire to succeed and do better than others encourages us to work harder. If there were no competitions, a sports meeting would never be exciting or successful. We often compete to get a better environment. We cooperate with others to be more competitive.
1—2题完成句子；3题回答问题；4题找出全文主题句；5题将文中画线句子译成汉语。
1. Everything we do today depends on our ability to
2. It’s hard for a person that is away from the society to have
3. What should you do if you want to have more success?
4.
5.
【推荐1】In the early 1990s, China dreamt of building its space exploration station so that it can be one of the space powers in the world. According to the China National Space Administration(中国国家航天局), China’s Space Programme is made up of three steps.
The first step is sending up a manned spacecraft. It will carry out all kinds of space experiments. The Shenzhou 5 and Shenzhou 6 have completed this task. Sending up a space laboratory marks the second step of the programme. One of the most important tasks during this step is the docking(对接) of a manned spacecraft and space lab.
Shenzhou 7 was the third human space flight, which included the first Chinese extravehicular(舱外) activity. It is a milestone(里程碑) during this project. The building of the Tiangong-1 Space Lab, together with Shenzhou 8 to 10 Spacecraft, is expected to complete the rest of the second step tasks, which prepares for China’s final goal of building a space station. It is part of Step 3.
After several years, Tiangong 2 was launched in 2016. It can do many experiments. And then, the Tiangong 3 space station will have astronauts living inside and can develop new types of vegetables and fruits or produce new materials in space. Cargo shuttles(货运飞机) will carry food, space suits and other necessary things into space.
The goal of having a space exploration station is to be realized by 2020. Then China will be the first country to build its space exploration station on its own. All Chinese look forward to seeing the day.
根据短文内容，回答下列问题。
1. Who plans the China’s Space Programme?
2. How many steps does the China’s Space Programme experience?
3. What is one of the most important tasks in the second step of China’s Space Programme?
4. How can the necessary things be sent into space?
5. Why does China want to build its space exploration station?
【推荐2】If you don’t want to visit any place on Earth (地球), you can try an exciting trip to space (太空). It is a good place for holidays because you don’t have to meet too many people there. Now people in Russia have a great plan. They are ready to build the first space hotel. Its name is the Commercial Space Station. It will be open in 2026.
The hotel is 217 miles far above the ground. It will take two days to get to the hotel by spaceship (宇宙飞船). The journey will cost much money. The hotel has four cabins (客舱). And it can hold seven guests (客人). The guests will feel comfortable because the waiters there will look after them well. They can enjoy nice places through the windows. They can also have lots of nice food like beef and potato soup.
Now lots of young people are looking forward to living in the hotel. How interesting!
1. What can you try if you don’t want to visit any place on Earth (地球)?2. When will it be open?
3. How long will it take to get to the hotel?
4. How many cabins does the hotel have?
5. How will the guests feel?
A Big Step for Women
“I feel great!” said Wang Yaping, when she came out of the China Space Station, looking back at the Earth. On Nov.7, the 41-year-old woman made history. She became China’s first woman to walk in space! Wang, together with a man astronaut Zhai Zhigang, walked in space for six and a half hours, wearing the space suits made in China. They also tested the safety (安全) of their space suits and did some other work in space.
So far, only 16 women (including WangYaping) around the world have done spacewalks.
Scientists think women spacewalkers are very important to space science. Usually, women are more careful than men and they can better do with loneliness (孤独). So 3. it’s easier for them to stay long in space.
4. Scientists believe that humans may live on other planets someday. If we don’t let women take part in this, the research results of space life science would be incomplete (不完整的). Scientists need to learn about how space affects (影响) women’s bodies with the help of women spacewalkers. That’s why Wang’s spacewalk is important.
1. How long did Wang Yaping and Zhai Zhigang walk in space?2. How many women around the world have done spacewalks except WangYaping?
3. 文中it指代的内容。
4. 翻译划线句子。
5. Why is Wang’s spacewalk important?
