In the future we might live somewhere other than Earth, like Mars. Some people ask how this will be possible. Well, Mars is in fact a lot the same as the earth. The days are almost the same as those on the earth. However, the two planets vary in temperature.
Since there is mostly carbon dioxide on Mars, it would be quite difficult for a human to just land on it. So, special types of homes and space suits have to be designed. The space suits should be almost like the ones astronauts use now, and except that they have to be warmer so that the astronauts can survive the cold temperatures. The space suits must also be able to withstand (承受) high pressure and potentially dangerous radiation that can kill.
The houses should be similar to our homes today with a slight difference. All of the houses and other buildings should be built inside a large dome (圆顶状物) or bubble. The domes should be made out of glass, and would also be able to prevent radiation from affecting the people inside. The domes will be connected to a machine (like plants which turn carbon dioxide into oxygen).
With Mars’ population growing, how would the people on its surface get fresh food and water? Just like humans use domes, they can also use domes to grow plants. However, the domes where the plants are grown must be built to expand. Once we upgrade the domes to a larger size then we can grow more food by cultivating (种植) more plants. To get the food or come in connect with other domes, there will be long narrow tunnels like roads that connect to each dome separating them by several doors so that the pressure in each dome can remain the same.
On Mars, so many other things are available to us. As humans, we can have access to rare and fairly expensive metals that aren’t very easy to get hold of on Earth, and a colony on Mars enhances (提高) our chances of finding these metals. So when someone here on Earth says that going to Mars is impossible, please tell them that they’ll never know it until they try and they may try very soon. After all it’s our future. Why not make it on Mars?
1.It is difficult for humans to live on Mars because of all the following EXCEPT _________.
A. too much radiation B. cold temperature
C. lack of enough oxygen D. lack of houses
2.One of the reasons why we are eager to explore Mars may be that _________.
A. we can find rare and expensive metals there easily
B. we’ll get too bored to live on the earth in the future
C. our technology will become much advanced
D. we want to know more about the unknown world
3.What is the author’s attitude towards living on Mars? _________.
A. Pessimistic B. Uncertain C. Optimistic D. Opposed
高三英语阅读理解简单题
In the future we might live somewhere other than Earth, like Mars. Some people ask how this will be possible. Well, Mars is in fact a lot the same as the earth. The days are almost the same as those on the earth. However, the two planets vary in temperature.
Since there is mostly carbon dioxide on Mars, it would be quite difficult for a human to just land on it. So, special types of homes and space suits have to be designed. The space suits should be almost like the ones astronauts use now, and except that they have to be warmer so that the astronauts can survive the cold temperatures. The space suits must also be able to withstand (承受) high pressure and potentially dangerous radiation that can kill.
The houses should be similar to our homes today with a slight difference. All of the houses and other buildings should be built inside a large dome (圆顶状物) or bubble. The domes should be made out of glass, and would also be able to prevent radiation from affecting the people inside. The domes will be connected to a machine (like plants which turn carbon dioxide into oxygen).
With Mars’ population growing, how would the people on its surface get fresh food and water? Just like humans use domes, they can also use domes to grow plants. However, the domes where the plants are grown must be built to expand. Once we upgrade the domes to a larger size then we can grow more food by cultivating (种植) more plants. To get the food or come in connect with other domes, there will be long narrow tunnels like roads that connect to each dome separating them by several doors so that the pressure in each dome can remain the same.
On Mars, so many other things are available to us. As humans, we can have access to rare and fairly expensive metals that aren’t very easy to get hold of on Earth, and a colony on Mars enhances (提高) our chances of finding these metals. So when someone here on Earth says that going to Mars is impossible, please tell them that they’ll never know it until they try and they may try very soon. After all it’s our future. Why not make it on Mars?
1.It is difficult for humans to live on Mars because of all the following EXCEPT _________.
A. too much radiation B. cold temperature
C. lack of enough oxygen D. lack of houses
2.One of the reasons why we are eager to explore Mars may be that _________.
A. we can find rare and expensive metals there easily
B. we’ll get too bored to live on the earth in the future
C. our technology will become much advanced
D. we want to know more about the unknown world
3.What is the author’s attitude towards living on Mars? _________.
A. Pessimistic B. Uncertain C. Optimistic D. Opposed
高三英语阅读理解简单题查看答案及解析
We have heard some interesting ways that 5G wireless technology might change our lives in the future.
5G, short for the 5th generation mobile communication technology, promises Internet speeds between 50 to 100 times faster than current 4G systems. While 5G is set to be used in some limited areas of America this year, much of the world is not expected to receive widely available service until 2023.
One project in Britain, however, is already testing this superfast technology on an unlikely group of Internet users-cows. The project was developed by American technology company Cisco Systems. It also receives money from the British government. Cisco says the program seeks to explore the future of 5G connectivity in rural areas around the world.
Testing areas were set up at farms in three rural areas of England. The cows are equipped with 5G-connected devices (装置) that link up to a robotic milking system, which uses sensors and machine learning to fully automate the process. System designers say technology takes over after a cow feels ready to be milked and walks toward an automatic gate. The device is designed to recognize each individual cow. It then positions equipment to the right body position for milking. During the process, machines release food for the cow as a reward.
Other 5G technology tools include automated brushes that turn on when the cow rubs up against them. Sensors also control the amount of light to the cows’ living areas depending on the weather. And, an automatic feeding system makes sure the animals always get enough to eat.
Duncan Forbes, head of the project, told Reuters that the project shows the farm’s cow operations can be greatly improved with 5G technology and that the experiment provides strong evidence that 5G technology can be widely used in the future, not just on farms in Britain, but in rural communities across the world.
1.What is the purpose of Cisco Systems’ program?
A.To win financial support from British government.
B.To test the effects of 5G technology on animals
C.To promote its technological development in Britain
D.To expand the future use of 5G in rural communities.
2.What does the underlined word “It” in Paragraph 3 refer to?
A.The project. B.The company.
C.The technology. D.The group.
3.What can we learn about 5G according to the text?
A.It is no worse than 4G in terms of speed.
B.It is already widely available in the world.
C.It enables cows to control their own milking.
D.It is based on sensors and machine learning.
4.In which section of a newspaper may this text appear?
A.Entertainment. B.Lifestyle.
C.Education. D.Technology.
高三英语阅读理解中等难度题查看答案及解析
A new planet-hunting technique has detected the most earth-like planet yet around a star other than our sun, raising hopes of finding a space rock that might support life, astronomers (天文学家) reported recently.
“This is an important discovery to answer the question ‘Are we alone?’” said Michael Turner of the National Science Foundation.
“The team has discovered the most earth-like planet yet, and more importantly, has proved the power of a new technique that is sensitive (灵敏的) to detecting planets that are fit for people to live on,” Turner said in a statement.
In the last decade, astronomers have detected more than 160 planets moving around stars outside our solar system. Most of these have been gas giant planets like Jupiter, which are unfit for life.
But an international team has detected a cold planet about 5.5 times more massive than the earth — still small enough to be considered earth-like — moving around a star about 20,000 light years away, close to the center of the Milky Way.
To find this new planet, the team used a technique called gravitational microlensing (引力微观透镜法). When a planet is circling the closest star, the planet’s gravity can add its own signature to the light. This kind of light signature was observed on July 11 by a group of telescopes in a project known as OGLE, short for Optical Gravitational Lensing Experiment.
“The main advantage of microlensing is the signals for low-mass planets: They’re not weak signals. They’re just rare,” Bennett of the University of Notre Dame in Indiana said by telephone. “If there happens to be a straight line between a foreground star with its planet and the background source star, then you’re able to detect that planet.”
1.The underlined word “detected” in Paragraph 1 probably means “_________”.
A. discovered B. destroyed
C. created D. searched
2.The author’s purpose in writing this passage is to ____.
A. prove that scientists have a lot of difficulties in doing scientific research
B. explain why this planet moves around a star like our sun
C. teach the readers some basic knowledge about the universe
D. tell people about a new technique that finds the most earth-like planet moving round another star
3.From the news report we can infer that _________.
A. the planet is like the earth because it is close to the center of the Milky Way
B. it is quite possible that life may exist on other planets in the universe
C. people have no interest in finding a planet that might support life
D. the question “Are we alone” is too difficult for scientists to answer
4.Which of the following statements is NOT true according to the passage?
A. The signals coming from low-mass planets are too weak to be noticed.
B. Most of the discovered planets are not fit for people to live on.
C. If a star with its planet happens to be in line with the source star, then the planet can be found.
D. The power of the new technique is proved by the discovery of the earth-like planet.
高三英语阅读理解中等难度题查看答案及解析
In 1990 a report was published about what the earth might be like 20 years from then on. The report was a result of a three-year 36 .
According to the report, the picture of the earth in the year 2010 is not a 37one. The world will be more 38 because the population will continue to grow . The population could be 39 6 300 million, almost 2 115 million more than in 1985 .More people would move into cities, especially cities in 40 countries . Cities like Cairo and Jakarta probably would 41 have 15 million by then .
Food production will 42 , but not enough to feed all the people . Farmers will grow 90% more food than they did in 1985, 43 most of the increase would be in countries that
44 produce enough food for their people . Little increase is 45 in South Asia, Africa and the Middle East . Poor farming ways are 46 large areas of crop land, changing farms into deserts . More farmland is 47 as cities become larger and more houses are built . 48 will get worse as industrial countries burn more coal and oil .Many of the world’s 49 could disappear as more and more trees are cut down . Energy will continue to be a serious problem . The experts say their picture of the earth for the year 2010 50 . They only carried out the situation that 51 today . By changing the situation, by 52 the problems, the picture can be changed . There is 53 time for the nations of the world to work 54 a plan of action . But they warned that 55 too long to make decisions would greatly reduce the chances of success .
1. A．learning B．project C．notice D．study
2. A．pleased B．pleasant C．safe D．blue
3. A．dangerous B．beautiful C．crowded D．terrible
4. A．no more than B．as many as C．as much as D．as large as
5. A．developing B．developed C．big D．mountainous
6. A．none B．each C．all D．neither
7. A．insist B．reduce C．increase D．continue
8. A．so B．but C．or D．however
9. A．already B．hardly C．partly D．never
10. A．wanted B．lacked C．founded D．expected
11. A．destroying B．protecting C．disturbing D．interrupting
12. A．saved B．lost C．discovered D．used
13. A．Air pollution B．Water pollution C．Some diseases D．All farmland
14. A．Animals B．plants C．forests D．people
15. A．must be true B．will come true C．can’t be true D．may be wrong
16.A. happens B develops C .exists D. appears
17. A．settling B．working at C．answering D．dealing
18. A．no B．still C．less D．plenty of
19. A．about B．in C．out D．for
20. A．working B．suggesting C．spending D．waiting
高三英语完型填空中等难度题查看答案及解析
In 1990 a report was published about what the earth might be like 20 years from then on. The report was a result of a three-year ___36___. according to the report, the picture of the earth in the year 2010 is not a ___37___ one. The world will be more __38___ because the population will continue to grow. The population could be ___39__ 6 300 million, almost 2 150 million more than in 1985. More people would move into cities, especially cities in ___40___ countries. Cities like Cairo and Jakarta probably would ___41___ have 15 million by then.
Food production will ___42___, but not enough to feed all the people. Farmers will grow 90% more food than they did in 1985, __43___ most of the increase would be in countries that ___44___ produce enough food for their people. Little increase is ___45___ in South Asia, Africa and the Middle East. Poor farming ways are ___46___ large areas of crop land, changing farms into deserts. More farmland is ___47___ as cities become larger and more houses are built. ___48___ will get worse as industrial countries burn more coal and oil. Many of the world’s ___49___ could disappear as more and more trees are cut down. Energy will continue to be a serious problem. The experts say their picture of the earth for the year 2010 ___50___. They only carried out the situation that ___51___ today. By changing the situation, by ___52___ the problems, the picture can be changed. There is ___53___ time for the nations of the world to work ___54___ a plan of action. But they warned that ___55___ too long to make decisions would greatly reduce the chances of success.
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高三英语完型填空困难题查看答案及解析
Paris________ be a wonderful city but it’s not somewhere I’d like to live.
A. might B. would C. must D. can
高三英语单项填空中等难度题查看答案及解析
Scientists would like to place a huge mirror in space above the earth. It might be sixty miles wide. It would be used to catch the rays (光线) of the sun. It would direct the sun’s rays upon the earth as a child might do to make sunlight dance on the wall with a hand mirror.
Why do they want to do this? The sun’s rays could be helpful in many ways. They could light up cities by night. The warm rays could stop frosts (霜冻) which might come at night and hurt fruit crops. They could melt (融化) dangerous icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.
1.The huge mirror would ______.
A．stand 60 miles in height (高度) B．be 60 miles from side to side
C．cover 60 miles of the earth D．be 60 miles above the earth
2.The mirror would be used to ______.
A．reflect (反射) sunlight B．absorb (吸收) sunlight
C．see what the earth looks like D．see how clouds move
3.The strong light from the mirror could possibly ______.
A．hurt fruit crops B．set fire to cities
C．bring longer daytime D．shine through walls
4.The huge mirror is ______.
A．something in a story B．already made
C．just an idea D．to be made soon
高三英语阅读理解中等难度题查看答案及解析
London ________ be a wonderful city but it’s not somewhere I’d like to live.
A．might B．would C．must D．shall
高三英语单项填空中等难度题查看答案及解析
We might like to think we're not influenced by other people, but a new study into the group-buying mechanisms（机制） - like those used on coupon（优惠券） sites such as Groupon and LivingSocial - reveals that telling buyers who come later to the offer how many have already signed up increases the number of purchasers.
Researchers at the University of Toronto's Rotman School of Management wanted to understand why group buying sites that have entered the market recently have enjoyed greater success than those operating a decade ago, such as Mercata and MobShop.
Earlier attempts typically left potential buyers waiting for days before confirming whether or not they had got the offer they had signed up for.
“We think one of the reasons group-buying has been successful recently is because of the short time horizon,” says Rotman Professor Ming Hu, who co-wrote the study with Professor Mengze Shi and PhD student Jiahua Wu. “It allows for a herding effect.”
Another reason is the use of an information structure that discloses to later arrivals how many have already signed onto the deal.
Researchers looked at two ways of designing the purchasing mechanism for a group buy:a simultaneous mechanism, where no one knows how many buyers have come before them, and asequential（连续的） mechanism, where a second group of buyers has the advantage of knowing the size of the first group.
The researchers' analytical（分析的） model shows the most successful mechanism is the sequential one because it eliminates uncertainty for those coming later to the deal, and improves the confidence of those who sign on early, as they're able to track the numbers of those who come after them.
“That boosts confidence,” says Professor Hu, who teaches operations management. Deals for "luxury" services, versus everyday items, work better in a group buy scenario（方案） because they offer consumers a greater benefit.
1.It can be learned from the text that ______.
| A．the short time horizon is the reason why group-buying has been successful. |
| B．a simultaneous mechanism is where a group of buyers has the advantage of knowing how many people have signed up. |
| C．a sequential mechanism allows a herding effect which boosts the confidence of the buyers. |
| D．researchers at the University of Toronto's Rotman School of Management carried out an experiment about why group buying sites entered the market successfully, such as Mercata and MobShop. |
2.The underlined word “eliminates” in paragraph 7 probably means“______”.
| A．to become or to make something greater in amount, number, value |
| B．to remove or get rid of something |
| C．to deliberately not include something in what you are doing or considering |
| D．to make something known to somebody |
3.What can be the best title for the passage?
| A．Secret for marketing success – boosting confidence. |
| B．Secret for group-buying mechanism—herding effect. |
| C．Comparison between a simultaneous mechanism and a sequential mechanism. |
| D．What others do influences our decisions. |
高三英语阅读理解困难题查看答案及解析
Simply learn to live in the present, _____ think so much about the future or the past.
| A．rather than | B．other than | C．more than | D．less than |
高三英语单项填空中等难度题查看答案及解析