1 . It’s 2050. The Earth is dying, and moving to Mars seems to be the only way out for humans. A team of American astronauts begin to search on Mars. This is what the movie Red Planet begins with. Known as the Red Planet, Mars is the favorite of writers and filmmakers. Mars is the fourth planet from the Sun and the next planet beyond the Earth. Mars is the only planet whose surface can be seen from the Earth. It is about half size of our planet.
The surface of Mars is more like the Earth than any other planet. But it is further from the Sun than the Earth, so temperatures on Mars are much lower. Plants and animals can not live now on Mars. But many scientists still believe that life may have been on Mars long ago. On 6th August,1996, scientists discovered a piece of rock from Mars, which fell to the Earth 13,000 years ago. Ten years later, some scientists still didn’t accept that there was life on Mars. People may not be sure about life on Mars until a sample(样本) of life is brought back. Some further researches are being done in many countries.
根据材料内容选择最佳答案。
1. Why is the movie Red Planer mentioned?
| A．To introduce the topic. | B．To advise readers to go to Mars. |
| C．To compare Mars with the Earth. | D．To tell stories about American astronauts. |
| A．Mars is as big as the Earth in size. |
| B．Mars is the fourth planet from the Earth. |
| C．The surface of Mars is similar to that of the Earth. |
| D．Mars is one of the planets whose surfaces can be seen from the Earth. |
| A．it is too soft | B．it is too far | C．it is too small. | D．it is too cold |
| A．Some plants. | B．Some animals. | C．A piece of rock. | D．Some water. |
| A．a sample of life is brought back | B．a film on Mars is made |
| C．astronauts land on Mars | D．scientists move to Mars |
Which planet is the most beautiful in our solar system? Many people may answer “Saturn(土星).” Saturn is a funny-looking planet. It has beautiful rings. Of the planets in the solar system. Saturn’s rings are the biggest and brightest. According to scientists, however, these rings will one day disappear completely.
How did Saturn get its rings in the first place? Science has no sure answer. But there’s a popular idea. Some comets (彗星) or small planets ran into each other with Saturn’s moons. Earth has only one moon. But Saturn has at least 60 moons. And this left behind a large amount of ice and rock pieces. These pieces are different in size. Some are as small as a grain of sand. Others are as large as a house.
These pieces began to travel around Saturn. Saturn’s gravity(重力) pulled them toward it. At the same time, the speed of their orbit(轨道) tried to throw them into space. Over time, these pieces of ice and rock formed rings around Saturn.
A new study, however, suggests that Saturn’s gravity is winning. About ten tons of “ring matter” is falling into Saturn every second. If this continues, the planet’s ring system will no longer exist in 100 million to 300 million years’ time.
According to scientists, Saturn’s rings are between 10 million and 100 million years old. “We’re lucky to be able to see Saturn’s huge ring system,” one of the scientists said. “Some of the planets in our solar system only have very thin rings today. Perhaps we just missed out on seeing their huge ring systems!”
1. What are Saturn’s rings made up of?| A．Lots of moons. | B．Lots of comets. |
| C．Small planets. | D．Pieces of ice and rock. |
| A．In the next 10 million years. | B．In the next 30 million years. |
| C．In the next 100 million years. | D．In the next 300 million years. |
| A．Saturn’s gravity is causing its rings to lose more matter. |
| B．Most of Saturn’s ring matter is being thrown into space. |
| C．Saturn’s gravity is making the ring matter run into small planets. |
| D．The speed of the ring matter’s orbit is making the rings disappear. |
| A．Scientists don’t clearly know how Saturn’s rings were formed. |
| B．About ten tons of Saturn’s ring matter disappears every minute. |
| C．Saturn's rings are thicker than those of some other planets in our solar system. |
| D．In the past, people didn’t know that Saturn’s ring system would one day disappear. |
| A．How Saturn’s rings form. | B．What Saturn’s rings are made of. |
| C．The disappearing Saturn’s rings. | D．A new study on Saturn. |
3 . Scientists think that there has been life on the earth for millions
Scientists has launched many spaceships to explore other planets in the solar system.Some spaceships have gone beyond the solar system. However, no one has discovered any life in space
Why has no one from other planets sent us a message? Have they tried
4 . We have seen lots of science fiction movies about aliens. People travel to stars and even fight with aliens in the movies. But are there real aliens in the universe（宇宙）? Most of us think it is impossible, just like fairy tales. But the answer of some scientists is yes. So they have been searching for aliens in outer space for many years. They hope to find life signs of aliens.
Some scientists are used to using radio telescopes（望远镜）to search for aliens in space. In order to find aliens, they have worked hard for over half a century, but so far they have found nothing. Then some scientists guessed aliens might not want to connect us, but aliens could answer our messages. So some scientists sent radio signals into the universe. They hope one day they would be picked up by alien technology. These scientists want to prove（证明）that we are not alone in the universe.
But what should we do if the “alien phone” rings one day? Should we answer it? Stephen Hawking, the famous physicist, thought it could be dangerous to connect aliens. He said that the main purpose of aliens’ visiting to the earth could be searching for our resources（资源）. But other scientists think we have no need to worry. David Morrison, a NASA scientist, said, “If an alien radio signal reaches the earth from a planet thousands of light-years away, then they almost surely have solved all the problems we still have including the short of resources. Maybe they are much smarter than us, but why do they want to hurt us? I think we can try to connect them.”
根据短文内容，选择最佳答案。
1. ________ scientists believe there are aliens.
| A．Few | B．All | C．Most | D．Some |
| A．50 years | B．more than 50 years |
| C．40 years | D．more than 100 years |
| A．Aliens are friendly. | B．Aliens are dangerous. |
| C．Aliens can’t be found. | D．Aliens have been on the earth. |
| A．Because we want to find aliens. |
| B．Because aliens have many skills. |
| C．Because we want to help aliens. |
| D．Because aliens are much smarter than us. |
| A．Are We Alone? | B．Stephen Hawking’s Idea |
| C．Protect Our Earth | D．How to find aliens |
5 . There are only two big astronomy (天文学) Museums in our country. One is in Beijing, the other is in Shanghai. The Shanghai Astronomy Museum opened to the public several months ago. The museum is in the Pudong New Area.
The museum has collected 70 stones from space including those from the moon, Mars and so on.
根据材料内容，从下面五个选项中选出能填入文中空缺处的最佳选项，使短文意思通顺，内容完整。
| A．High technologies make the exhibitions lively. |
| B．The museum also collects handmade art works. |
| C．It covers an area of about 38,164 square meters. |
| D．Visitors can watch the stars on a large screen clearly. |
| E．If you visit the museum, you will have a truly educational trip. |
6 . On August 12, 2018, NASA sent up the Parker Solar Probe (帕克太阳探测器) to explore the mysteries of the sun. It was named after Eugene Newman Parker, an American physicist who predicted important facts about solar activity and solar wind.
The Corona is much hotter than the surface of the sun. In order to get close to the sun, Parker is protected by a special material. This allows it to keep cool inside, even when the temperature around it is as high as 1,400℃.
In April 2021, on its eighth trip around the sun, Parker actually entered the sun’s corona. It flew through the corona about five hours. For the first time in history, a spacecraft (航天器) has “touched” the sun. Though this happened in April, it took scientists a few months to get the information back and then several more months to confirm the news.
Since then, the probe has got into the corona more times. As it circles closer to the sun’s surface, Parker is making new discoveries that other spacecraft were too far away to see. The discoveries will also help us know more about space weather which has a great influence on the earth as well as astronauts in space.
Parker will keep moving closer to the sun and diving deeper into the corona until we lose contact (联系) with it sometime around December 2025. It will give us plenty of chances of learning something new about our life-giving star.
根据材料内容选择最佳答案。
1. The probe got its name from ________.
| A．a NASA engineer | B．a special material |
| C．an American physicist | D．an unsolved mystery |
| A．What the probe will do. |
| B．What the probe is made of. |
| C．Why the probe can get so close to the sun. |
| D．Why the sun’s corona is hotter than its surface. |
| A．发布 | B．确认 | C．执行 | D．传播 |
| A．To get to the surface of the sun. |
| B．To protect the astronauts in space. |
| C．To collect more information about the sun. |
| D．To test the highest temperature it can stand. |
| A．It is the only spacecraft sent up to the sun. |
| B．It is the first spacecraft to get into the sun’s corona |
| C．It will come back to the earth at the end of 2025. |
| D．It flew around the sun five times before entering the corona. |
Earth is our home planet. It is the only planet known to have lots of liquid (液态的) water. Liquid water is necessary for life.
What does Earth look like?
From space, Earth looks like a blue marble (大理石) with white swirls (漩涡) and areas of brown, yellow, green and white.
Today, with GPS, BDS and other satellites, scientists can compute Earth’s size and shape to within a centimeter. Pictures from space show Earth is round like the moon. Though some forces are making the planet change shape very slowly, but it is still round.
From June to August, the sun’s rays hit the Northern Hemisphere (半球) more directly than the Southern Hemisphere. The result is warm (summer) weather in the Northern Hemisphere and cold (winter) weather in the Southern Hemisphere.
What are Earth’s different parts?
Earth includes land, air, water and life. The land holds mountains, valleys and flat areas. The air is made up of different gases. The water includes oceans, lakes, rivers, streams, rain, snow and ice.
There are millions of kinds of life on Earth. Their sizes are from very tiny to very large.
根据材料内容，从下面五个选项中选出能填入文中空缺处的最佳选项，使短文意思通顺、内容完整。
| A．Why does Earth have seasons? |
| B．How do we know Earth is round? |
| C．Life is made up of people, animals and plants. |
| D．Earth is the only planet where life is known to be. |
| E．The blue is water, which covers about 71% of Earth’s surface. |
We know much about the universe(宇宙). It means the earth, the sun, the moon and the stars and the spaces between them.
Most of the stars are bigger than the moon, but they look much
The earth is going round itself all the time.
The earth is our homeland. We should love it.
From a plane we can see the fields, cities, mountains or seas below.
The sea is very huge. It’s nearly covers three quarters of the Earth. The sea is also very deep in some places.
In most parts of the sea, there are many kinds of fishes and plants.
The sea can be very cold. When people go down, the sea becomes colder and colder.
| A．Some live near the top of the sea. |
| B．If we go into space, we see more and more of the Earth. |
| C．Only some men could go down into the deep sea at first. |
| D．The sea looks very beautiful when the Sun is shining on it. |
| E．There is one place where the sea is about 11 kilometers in depth. |
10 . European researchers say they have created a process that can produce oxygen from moon dust. The process could provide a major source of oxygen for humans taking part in moon exploration activities in the future. Researchers from the European Space Agency（ESA）carried out the experiments and reported their results in a study.
The team says ESA’s experimental “plant” was able to successfully produce oxygen from simulated moon dust. The dust is part of a material known as regolith, which holds about 45 percent oxygen. However, the oxygen’s form is very strange, so it is hard to produce.
ESA’s long -term goal is to design an oxygen -producing “pilot plant” to work fulltime on the moon. Beth Lomax of the University of Glasgow was a lead researcher on the project. “Being able to get oxygen from resources found on the moon would certainly be hugely useful for future lunar settlers,” she said.
The researchers reported that the process also produced some usable metal materials. ESA researcher Alexandre said the finding that a number of metals are left behind was an important discovery.
ESA and the U. S. space agency NASA are both working on plans to return human beings to the moon. NASA has set a goal for 2024, with the aim to keep humans on the moon for long periods.
Word Bank simulated仿造的；mineral矿物质；regolith月壤； lunar settlers月球移民；moon dust月尘； |
根据材料内容选择最佳答案。
1. How will the process do good to humans according to the study?
| A．By creating warm air for researchers on the moon. |
| B．By providing rocks for the production of minerals. |
| C．By testing the weight of the oxygen in the moon dust. |
| D．By offering oxygen for people doing some research on the moon. |
| A．The quality is poor. | B．The size is small. |
| C．The form is uncommon. | D．The weight is heavy. |
| A．To show the history of ESA’s pilot plant. |
| B．To show the importance of ESA’s study. |
| C．To tell the plan of ESA’s research. |
| D．To present the process of ESA’s experiment. |
| A．ESA has discovered new materials on the moon. |
| B．ESA and NASA plan to land man on the moon again. |
| C．NASA will send more astronauts to the moon in 2024. |
| D．NASA and ESA will make a study together on the moon. |
| A．A movie poster. | B．A picture book. |
| C．A travel guide. | D．A science magazine. |
