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 |
相似题推荐
【推荐1】In many science fiction (科幻) movies, men travel to faraway stars and even fight with aliens. But are there real aliens in the universe (宇宙)? The answer of some scientists is yes. So they have been searching for aliens in outer space for many years. They hope io 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 our solar system 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 don’t they 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．Some | C．Most | D．All |
| A．more than 50 years | B．50 years | C．40 years | D．30 years |
| A．Aliens are dangerous. | B．Aliens are friendly. |
| C．Aliens can’t be found. | D．Aliens have been on the earth. |
| A．Because we want to find aliens. | B．Because aliens are much smarter than us. |
| C．Because we want to help aliens. | D．Because aliens have many skills. |
| A．How to Use Radio Telescope. | B．Stephen Hawking’s Idea. |
| C．Protect Our Earth. | D．Are We Alone? |
【推荐2】When we talk about the universe, we mean not only the earth, the sun and the moon, but also the stars and space between them. There are millions of stars in our sky. The sun is one of them. Around it there are eight big planets moving, including the earth. The moon is our nearest neighbour in space. If you look at the sky on a clear night, it is possible to see about 3,000 stars. They look small, but they are really very big hot balls of burning(燃烧着的) gas. Some of them are huge, but others are much smaller like our planet Earth. The biggest stars are very bright, but they can only live for a short time. Every day new stars are born and old stars die.
All the stars are very far away. The light from the nearest star (except the sun) takes more than four years to reach the earth.
Hundreds of years ago, people used stars, like the North Star, to know which direction(方向) to travel in. Today you can still see that star.
1. The universe means ________.| A．the earth | B．the sun, the moon and the stars |
| C．space between the stars | D．All of the above. |
| A．four years | B．1,000 days | C．100 years | D．four light years |
| A．when they were working | B．to tell them when to do farm work |
| C．while they were travelling | D．just for fun |
【推荐3】The world got a glimpse（一瞥）of one of the greatest mysteries of our universe（宇宙）on April 10. That's when the first image of a black hole was shown to the public. The picture was created by a network of eight radio telescopes（射电望远镜）.
“We have seen what we thought was unseeable ,"says Shep Doeleman. He led the effort to create the image.
The black hole is at the center of galaxy（星系）named Messier 87,some 55 million light-years from the earth，and is 6.5 billion times the mass of the sun.
The image shows the gas，dust，and stars that move around the black hole before disappearing into it. It does not truly show the black hole，because not even light can escape its gravity. Black holes, like vacuums, suck（吸）in everything that gets too close.
根据短文内容，选择最佳答案。
1. In paragraph 1，the underlined word “image" probably means___________.
| A．truth | B．fact | C．picture | D．information |
| A．was expected before | B．was unexpected before |
| C．is common | D．is impossible |
| A．in the middle of | B．in the front of |
| C．at the back of | D．on the top of |
| A．It will fly around it. |
| B．It will be covered by the dust. |
| C．It will be sucked in. |
| D．It will be discovered. |
| A．The Black Hole and its Gravity | B．First Look at the Black Hole |
| C．The Mystery of the Universe | D．Faraway Galaxy |
【推荐1】Have you ever counted the number of digits (位) in your mobile phone number?
The main reason for using 11 digits is that we have the largest population in the world.
Besides China, Britain and Japan also use 11-digit mobile phone numbers. But their numbers always start with 0.
| A．We once had 10-digit numbers. |
| B．Your number has eleven digits. |
| C．But short numbers are easy to remember. |
| D．The 11 digits can be divided into three parts. |
| E．So they can’t create as many numbers as we can. |
| F．That’s enough for each of us to use 7 or 8 phone numbers. |
The Eiffel Tower in Paris, France, is one of the most famous buildings in the world. But although it’s widely known to the world, the tower has some secrets.
①__________
If you were in control of building the Eiffel Tower, where else would you live? Gustave Eiffel, who designed (设计) the tower, built himself a small apartment on the top level of the tower. Only a few VIPs were allowed to visit, such as superstar scientist Thomas Edison. Unused since the 1920s after Eiffel’s death, few knew about the apartment until 2015 when it opened for public visiting.
②__________
The top of the Eiffel Tower seems like the perfect place to study stars and weather. No wonder Eiffel set up two small laboratories on the third level where scientists studying the stars and weather could work. Eiffel carried out his own research as well. To learn more about how objects move against air, he dropped objects on ropes from the second level of the tower (about 380 feet above ground) and observed how they fell.
③__________
Maybe the Eiffel Tower should be renamed the Eco Tower. In 2015 workers gave the Iron Lady an environmentally friendly change by setting up two wind turbines (风力发电机) on the second level of the tower. They could turn wind into electricity for the tower’s shops and restaurants. A system was also set up to collect and lead rainwater into the tower’s toilets.
④__________
Some people visit the Eiffel Tower for the view (风景). Others come for more exciting activities. Soon after the tower was completed in 1898, a man walked up 704 of the tower’s steps on stilts (高跷). In 1952, three artists swung 400 feet above ground from ropes without protection. And in 2010, a man skated off a raised surface set up under the tower’s first level down a 90-foot-tall ramp (斜坡) to the ground.
1. Match the title with the correct part.a. Calling the brave b. Going green c. Hidden apartment d. Sky laboratornes
| A．①-a; ②-c; ③-d; ④-b | B．①-c; ②-a; ③-b; ④-d |
| C．①-a; ②-d; ③-b; ④-c | D．①-c; ②-d; ③-b; ④-a |
| A．He was in control of building the Eiffel Tower. |
| B．He met Thomas Edison in his apartment in 1920s. |
| C．He had an apartment on the second level the Eiffel Tower. |
| D．He studied stars and weather in a laboratory on the Eiffel Tower. |
| A．Thought wisely. | B．Watched carefully. |
| C．Spread widely. | D．Support strongly. |
| A．The history of the Eiffel Tower. | B．The view of the Eiffel Tower. |
| C．The secrets about the Eiffel Tower. | D．The famous people visiting the Eiffel Tower. |
【推荐3】In many countries, governments advise people to buy electric（电动的）car and tell them that driving an electric car is good for the environment. But is it true?
The University of Minnesota recently studied the waste from different cars. The scientists found that sometimes, electric cars are more harmful than petrol（汽油）cars.
Surprising? Well, please pay attention to the word “sometimes”. Electric cars should be clean. The problem lies in the power that is used to charge（使充电）them. If the power comes from wind or solar energy（太阳能）, electric cars will cause little pollution. However, if the power comes from coal, they will be very harmful. According to the study, pollution caused by these cars kills about 3,000 people a year. Pollution caused by petrol cars leads to about 880 deaths a year.
In fact, you can believe salespeople’s words when they say electric cars are clean. However, they are right only when the power used to charge their cars is also clean.
So how clean electric cars are depends on where people drive them. In France, more than half of the power comes from nuclear stations（核电站）. Driving electric cars is good for the environment. In some other counties, however, power still mainly comes from coal. India, for example, depends on coal for 61% of its power. Only 2% of its power comes from nuclear energy. In countries like India, electric cars are not clean at all! They should prepare clean power for their electric cars.
根据材料内容选择最佳答案。
1. Why do governments advise people to buy electric cars according to the first paragraph?
| A．To have a popular car. |
| B．To save lots of money. |
| C．To protect the environment. |
| A．They use more coal to get power. |
| B．They need two more drivers during the trip. |
| C．They cause more people to die than petrol cars. |
| A．Nowadays electric cars are not always clean. |
| B．The power of most cars in France comes from nuclear stations. |
| C．Salespeople advise more people to buy electric cars. |
| A．To tell us petrol cars are very harmful to the environment. |
| B．To explain why solar energy has a great advantage over coal. |
| C．To tell us what kind of electric cars are friendly to the environment. |
| A．In a storybook. | B．In a science newspaper. | C．On a notice board. |
【推荐1】While jogging today, you twisted your ankle（扭伤脚踝）. It really hurts. You’ve heard that both heat and cold can help with pain. But which one should you use? The right form of treatment（治疗）differs depending on your type of injury and when it occurred.
In the case of a new injury, ice is the best form of treatment. Cold slows the blood flow to an injury, numbs the pain and reduces swelling（肿）.
◆ How to apply ice
Apply an ice pack within 48 hours after an injury occurs. But first wrap the pack in a thin towel, so the cold won’t damage your skin. Apply the pack for a maximum of 20 minutes at one time. Then take a 10-minute break at least before applying it again.
Cold is a good treatment for sprains（扭伤）, bumps（撞伤）, many sports injuries and much more.
◆ When to use heat
When a pain returns often or continues for a long time, heat is the answer. Neck pain and backache are often chronic（慢性的）. The pain often results from using that body part too much or in the wrong way. Heat is also a great help to joint pains and sore muscles. Heat increases blood flow to the area and encourages healing. Heating pads, hot water bottles and hot baths are all ways to apply heat.
The next time you have pain or an injury, choosing the proper treatment should be much easier!
1. According to the passage, ________ can help with the pain when you have an injury.| A．heat | B．cold | C．ice | D．heat and cold |
| A．eases | B．increases | C．adds | D．brings |
| A．The neck pain occurs frequently. | B．A sprain occurred three days ago. |
| C．A bump occurred last night. | D．The backache which usually occurs. |
| A．48 hours | B．a 10-minute break | C．20 minutes | D．an hour |
| A．chronic neck pain. | B．continuous backache. |
| C．new sports injuries | D．sore muscles |
| A．fashion | B．sports | C．advertisement | D．health |
【推荐2】It’s known that Chinese students pay much attention to listening and speaking when they learn English. However, reading and writing also play an important role in English learning. Recently, we have had a survey about how to learn English well in our school. The total number of the students is about 500. The chart shows their answers.
However, with the development of science and technology, many students are more and more interested in reading English materials on the electronic products. It is really convenient for the students to learn English anywhere, but it is bad for the students’ eyes to spend too much time staring at the screen. On the other hand, the students feel tired and sleepy after they take after-school classes on English and other subjects.
1. How many students want to take after-school English classes?| A．About 40. | B．About 60. | C．About 110. | D．About 290. |
| A．Listening to the teachers carefully in class. | B．Taking after-school English classes. |
| C．Using the apps on the phone. | D．Other ways to practice English. |
| A．Excited and happy. | B．Tired and sleepy. | C．Worried and tired. | D．Happy but tired. |
| A．The students who use the apps on the phone are more than half of the total students. |
| B．All the students practice English by reading and writing in their free time. |
| C．It is good for the students’ eyes to spend too much time staring at the screen. |
| D．Many students show interest in reading English materials on the electronic product. |
【推荐3】We are all busy talking about and using the Internet. But how many of us know the history of the Internet?
Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. Computer networks (网络) didn’t work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information could be sent through another part. In this way, computer network system would keep on working all the time.
At first, the Internet was only used by the government. But in the early 1970s, universities, hospitals and banks were allowed to use it, too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software (软件) that made surfing the Internet more convenient (方便的).
Today it is easy to get online and it is said millions of people use the Internet every day. Sending e-mails is more and more popular among students.
The Internet has now become one of the most important parts of people’s life.
1. The Internet has a history of about ________ years.| A．twenty | B．sixty | C．forty | D．seventy |
| A．make computers much cheaper | B．break down the whole network |
| C．make computers large and expensive | D．make itself keep on working all the time |
| A．the government | B．universities | C．hospitals and banks | D．schools |
| A．Computers | B．Scientists | C．Software | D．Information |
| A．The Use of the Internet | B．The Types of Computers |
| C．The Popularity of Computers | D．The History of the Internet |
