Computerised trading agents may help humans build better markets
THANKS to declining markets, investment banks are getting rid of many of their highly-paid traders. When markets recover, the banks might be tempted to replace them with rather cheaper talent. One alternative has been around for a while but has yet to catch on: autonomous trading agents-computers programmed to act like the human version without such annoying costs as holidays, lunch breaks or bonuses. Program trading has, of course, been done before; some blamed the 1987 stock market crash on computers instructed with simple decision-making rules. But robots can be smarter than that.
Dave Cliff, a researcher at Hewlett-Packard Laboratories in Bristol, England, has been creating trading robots for seven years. In computer simulations he lets them evolve "genetically", and so allows them to adapt and fit models of real-world financial markets. His experiments have suggested that a redesign of some markets could lead to greater efficiency. Last year, a research group at IBM showed that Mr Cliff's artificial traders could consistently beat the human variety, in various kinds of market. Nearly all take the shape of an auction(拍卖). One well-known type is the English auction, familiar to customers of the salesrooms(拍卖场)of Christie's and Sotheby's, where sellers keep mum on their offer price, and buyers increase their bids by stages until only one remains.
At the other extreme is the Dutch auction, familiar to 17th-century tulip-traders in the Netherlands as well as to bidders for American Treasury bonds. Here, buyers remain silent, and a seller reduces his price until it is accepted. Most markets for shares, commodities, foreign exchange and derivatives are a mixture of these two types: buyers and sellers can announce their bid or offer prices at any time, and deals are constantly being closed, a so-called "continuous double auction".
Mr Cliff's novel idea was to apply his evolutionary computer programs to marketplaces themselves. Why not, he thought, try and see what types of auction would let traders converge(趋同) most quickly towards a balance price? The results were surprising. In his models, auctions that let buyers and sellers bid at any time like most of today's financial exchanges were less efficient than ones that required relatively more bids from either buyers or sellers. These "evolved auctions" also withstood big market shocks, such as crashes and panics, better than today's real-world versions. Mr Cliff's most recent results, which will be presented in Sydney, Australia, on December 10th, show that the best type of auction for any market depends crucially on even slight differences in the number of buyers and sellers.
Bank of America has been investigating these new auctions, along with robotic traders, for possible use in electronic exchanges. The hope is that today's financial auctions and online marketplaces might work better by becoming more like their English and Dutch ancestors.
1.What is the passage mainly about?
A. A review of two kinds of auctions. B. An introduction of trading robots.
C. A survey of the trading market. D. About trading alternatives.
2.Which of the following is true according to the text?
A. Mr Cliff’s robot traders have now been used in real-world markets.
B. Robot traders can evolve like creatures.
C. There is room for improvement in efficiency in trading markets.
D. The English auction is the most popular trading form.
3.What can we infer from the text?
A. Existing auctions cannot withstand market shocks
B. The Dutch auction is better than the continuous double auction
C. It’s hard for traders to reach a balanced price
D. The best type of auction takes place when the number of the buyers is equal to that of sellers
4.What’s the author’s attitude toward robot traders?
A. Prejudiced B. Objective C. Critical D. Optimistic
高三英语阅读理解困难题
Computerised trading agents may help humans build better markets
THANKS to declining markets, investment banks are getting rid of many of their highly-paid traders. When markets recover, the banks might be tempted to replace them with rather cheaper talent. One alternative has been around for a while but has yet to catch on: autonomous trading agents-computers programmed to act like the human version without such annoying costs as holidays, lunch breaks or bonuses. Program trading has, of course, been done before; some blamed the 1987 stock market crash on computers instructed with simple decision-making rules. But robots can be smarter than that.
Dave Cliff, a researcher at Hewlett-Packard Laboratories in Bristol, England, has been creating trading robots for seven years. In computer simulations he lets them evolve "genetically", and so allows them to adapt and fit models of real-world financial markets. His experiments have suggested that a redesign of some markets could lead to greater efficiency. Last year, a research group at IBM showed that Mr Cliff's artificial traders could consistently beat the human variety, in various kinds of market. Nearly all take the shape of an auction(拍卖). One well-known type is the English auction, familiar to customers of the salesrooms(拍卖场)of Christie's and Sotheby's, where sellers keep mum on their offer price, and buyers increase their bids by stages until only one remains.
At the other extreme is the Dutch auction, familiar to 17th-century tulip-traders in the Netherlands as well as to bidders for American Treasury bonds. Here, buyers remain silent, and a seller reduces his price until it is accepted. Most markets for shares, commodities, foreign exchange and derivatives are a mixture of these two types: buyers and sellers can announce their bid or offer prices at any time, and deals are constantly being closed, a so-called "continuous double auction".
Mr Cliff's novel idea was to apply his evolutionary computer programs to marketplaces themselves. Why not, he thought, try and see what types of auction would let traders converge(趋同) most quickly towards a balance price? The results were surprising. In his models, auctions that let buyers and sellers bid at any time like most of today's financial exchanges were less efficient than ones that required relatively more bids from either buyers or sellers. These "evolved auctions" also withstood big market shocks, such as crashes and panics, better than today's real-world versions. Mr Cliff's most recent results, which will be presented in Sydney, Australia, on December 10th, show that the best type of auction for any market depends crucially on even slight differences in the number of buyers and sellers.
Bank of America has been investigating these new auctions, along with robotic traders, for possible use in electronic exchanges. The hope is that today's financial auctions and online marketplaces might work better by becoming more like their English and Dutch ancestors.
1.What is the passage mainly about?
A. A review of two kinds of auctions. B. An introduction of trading robots.
C. A survey of the trading market. D. About trading alternatives.
2.Which of the following is true according to the text?
A. Mr Cliff’s robot traders have now been used in real-world markets.
B. Robot traders can evolve like creatures.
C. There is room for improvement in efficiency in trading markets.
D. The English auction is the most popular trading form.
3.What can we infer from the text?
A. Existing auctions cannot withstand market shocks
B. The Dutch auction is better than the continuous double auction
C. It’s hard for traders to reach a balanced price
D. The best type of auction takes place when the number of the buyers is equal to that of sellers
4.What’s the author’s attitude toward robot traders?
A. Prejudiced B. Objective C. Critical D. Optimistic
高三英语阅读理解困难题查看答案及解析
Computerised trading agents may help humans build better markets
THANKS to declining markets, investment banks are getting rid of many of their highly-paid traders. When markets recover, the banks might be tempted to replace them with rather cheaper talent. One alternative has been around for a while but has yet to catch on: autonomous trading agents-computers programmed to act like the human version without such annoying costs as holidays, lunch breaks or bonuses. Program trading has, of course, been done before; some blamed the 1987 stock market crash on computers instructed with simple decision-making rules. But robots can be smarter than that.
Dave Cliff, a researcher at Hewlett-Packard Laboratories in Bristol, England, has been creating trading robots for seven years. In computer simulations he lets them evolve "genetically", and so allows them to adapt and fit models of real-world financial markets. His experiments have suggested that a redesign of some markets could lead to greater efficiency. Last year, a research group at IBM showed that Mr Cliff's artificial traders could consistently beat the human variety, in various kinds of market. Nearly all take the shape of an auction(拍卖). One well-known type is the English auction, familiar to customers of the salesrooms(拍卖场)of Christie's and Sotheby's, where sellers keep mum on their offer price, and buyers increase their bids by stages until only one remains.
At the other extreme is the Dutch auction, familiar to 17th-century tulip-traders in the Netherlands as well as to bidders for American Treasury bonds. Here, buyers remain silent, and a seller reduces his price until it is accepted. Most markets for shares, commodities, foreign exchange and derivatives are a mixture of these two types: buyers and sellers can announce their bid or offer prices at any time, and deals are constantly being closed, a so-called "continuous double auction".
Mr Cliff's novel idea was to apply his evolutionary computer programs to marketplaces themselves. Why not, he thought, try and see what types of auction would let traders converge(趋同) most quickly towards a balance price? The results were surprising. In his models, auctions that let buyers and sellers bid at any time like most of today's financial exchanges were less efficient than ones that required relatively more bids from either buyers or sellers. These "evolved auctions" also withstood big market shocks, such as crashes and panics, better than today's real-world versions. Mr Cliff's most recent results, which will be presented in Sydney, Australia, on December 10th, show that the best type of auction for any market depends crucially on even slight differences in the number of buyers and sellers.
Bank of America has been investigating these new auctions, along with robotic traders, for possible use in electronic exchanges. The hope is that today's financial auctions and online marketplaces might work better by becoming more like their English and Dutch ancestors.
1.What is the passage mainly about?
A. A review of two kinds of auctions. B. An introduction of trading robots.
C. A survey of the trading market. D. About trading alternatives.
2.Which of the following is true according to the text?
A. Mr Cliff’s robot traders have now been used in real-world markets.
B. Robot traders can evolve like creatures.
C. There is room for improvement in efficiency in trading markets.
D. The English auction is the most popular trading form.
3.What can we infer from the text?
A. Existing auctions cannot withstand market shocks
B. The Dutch auction is better than the continuous double auction
C. It’s hard for traders to reach a balanced price
D. The best type of auction takes place when the number of the buyers is equal to that of sellers
4.What’s the author’s attitude toward robot traders?
A. Prejudiced B. Objective C. Critical D. Optimistic
高三英语阅读理解简单题查看答案及解析
Humans may not have landed on Mars (火星) just yet, but that isn’t stopping a European company from devising a plan to send four people to the Red Planet within the next few years.This project, called Mars One, aims to send a small group of people to Mars in 2022 and eventually establish a permanent colony on the planet.
“Everything we need to go to Mars exists,” said Mars One co-founder Bas Lansdorp in March 2014.“We have the rockets to send people to Mars, the equipment to land on Mars, the robots to prepare the settlement for humans.For a one-way mission, all the technology exists.” Yet the four astronauts chosen for the trip will be stuck on Mars—forever.And despite Mars One’s thorough planning, there are a number of challenges that may prevent the mission from ever taking place.The biggest road block could be the mission's huge cost ($6 billion).However, Lansdorp is confident that Mars One will be able to fund the project by selling the broadcast rights for the mission and subsequent experiences living on the planet.
Those broadcast rights will also play a part in helping to select the people who will be sent to Mars.Lansdorp said the company will hold a selection process similar to a reality show.Lansdorp is expecting at least 1 million applications from people around the world.In addition to the cost, several other potential problems could inhibit (阻止) the mission to Mars.
“It’s even more challenging to send people there with life support, with food, with air, with all the other things like books, entertainment, means of communication and of providing for their own resources for a long stay on Mars,” said Adam Baker, senior lecturer in space engineering at Kingston University in London.“The size of the rockets you’d need to do this would be absolutely colossal.”
1.According to Project Mars One, humans could send four people to Mars within the next ________years.
A. seven B. eight C. ten D. six
2.According to Bas Lansdorp, which of the following is NOT TRUE?
A. Robots are prepared for the settlement for humans.
B. He could not come up with the fund for Mars One.
C. We humans have the rockets to send people to Mars.
D. The equipment is ready for humans to land on Mars.
3.The word “colossal” in the last paragraph is closest in meaning to ___________.
A. very large
B. very small
C. medium
D. average
4.Which of the following is an appropriate title for this passage?
A. Ready for a Round Trip to Mars
B. Ready for a Short Visit to Mars
C. Ready for a One-way Trip to Mars
D. Ready for a Walk on Mars
高三英语阅读理解困难题查看答案及解析
Humans may not have landed on Mars (火星) just yet, but that isn’t stopping a European company from devising a plan to send four people to the Red Planet within the next few years. This project, called Mars One, aims to send a small group of people to Mars in 2022 and eventually establish a permanent colony on the planet.
“Everything we need to go to Mars exists,” said Mars One co-founder Bas Lansdorp in March 2014. “We have the rockets to send people to Mars, the equipment to land on Mars, the robots to prepare the settlement for humans. For a one-way mission, all the technology exists.” Yet the four astronauts chosen for the trip will be stuck on Mars—forever. And despite Mars One’s thorough planning, there are a number of challenges that may prevent the mission from ever taking place. The biggest road block could be the mission's huge cost ($6 billion). However, Lansdorp is confident that Mars One will be able to fund the project by selling the broadcast rights for the mission and subsequent experiences living on the planet.
Those broadcast rights will also play a part in helping to select the people who will be sent to Mars. Lansdorp said the company will hold a selection process similar to a reality show. Lansdorp is expecting at least 1 million applications from people around the world. In addition to the cost, several other potential problems could inhibit (阻止) the mission to Mars.
“It’s even more challenging to send people there with life support, with food, with air, with all the other things like books, entertainment, means of communication and of providing for their own resources for a long stay on Mars,” said Adam Baker, senior lecturer in space engineering at Kingston University in London. “The size of the rockets you’d need to do this would be absolutely colossal.”
1.According to Project Mars One, humans could send four people to Mars within the next ________years.
A. seven B. eight C. ten D. six
2.According to Bas Lansdorp, which of the following is NOT TRUE?
A. Robots are prepared for the settlement for humans.
B. He could not come up with the fund for Mars One.
C. We humans have the rockets to send people to Mars.
D. The equipment is ready for humans to land on Mars.
3.The word “colossal” in the last paragraph is closest in meaning to ___________.
A. very large B. very small
C. medium D. average
4.Which of the following is an appropriate title for this passage?
A. Ready for a Round Trip to Mars
B. Ready for a Short Visit to Mars
C. Ready for a One-way Trip to Mars
D. Ready for a Walk on Mars
高三英语阅读理解中等难度题查看答案及解析
Humans may not have landed on Mars (火星) just yet, but that isn’t stopping a European company from devising a plan to send four people to the Red Planet within the next few years. This project, called Mars One, aims to send a small group of people to Mars in 2022 and eventually establish a permanent colony on the planet.
“Everything we need to go to Mars exists,” said Mars One co-founder Bas Lansdorp in March 2014. “We have the rockets to send people to Mars, the equipment to land on Mars, the robots to prepare the settlement for humans. For a one-way mission, all the technology exists.” Yet the four astronauts chosen for the trip will be stuck on Mars—forever. And despite Mars One’s thorough planning, there are a number of challenges that may prevent the mission from ever taking place. The biggest road block could be the mission's huge cost ($6 billion). However, Lansdorp is confident that Mars One will be able to fund the project by selling the broadcast rights for the mission and subsequent experiences living on the planet.
Those broadcast rights will also play a part in helping to select the people who will be sent to Mars. Lansdorp said the company will hold a selection process similar to a reality show. Lansdorp is expecting at least 1 million applications from people around the world. In addition to the cost, several other potential problems could inhibit (阻止) the mission to Mars.
“It’s even more challenging to send people there with life support, with food, with air, with all the other things like books, entertainment, means of communication and of providing for their own resources for a long stay on Mars,” said Adam Baker, senior lecturer in space engineering at Kingston University in London. “The size of the rockets you’d need to do this would be absolutely colossal.”
1.According to Project Mars One, humans could send four people to Mars within the next ________years.
A. seven B. eight C. ten D. six
2.According to Bas Lansdorp, which of the following is NOT TRUE?
A. Robots are prepared for the settlement for humans.
B. He could not come up with the fund for Mars One.
C. We humans have the rockets to send people to Mars.
D. The equipment is ready for humans to land on Mars.
3.The word “colossal” in the last paragraph is closest in meaning to ___________.
A. very large B. very small
C. medium D. average
4.Which of the following is an appropriate title for this passage?
A. Ready for a Round Trip to Mars
B. Ready for a Short Visit to Mars
C. Ready for a One-way Trip to Mars
D. Ready for a Walk on Mars
高三英语阅读理解中等难度题查看答案及解析
Humans may not have landed on Mars (火星) just yet, but that isn’t stopping a European company from devising a plan to send four people to the Red Planet within the next few years. This project, called Mars One, aims to send a small group of people to Mars in 2022 and eventually establish a permanent colony on the planet.
“Everything we need to go to Mars exists,” said Mars One co-founder Bas Lansdorp in March 2014. “We have the rockets to send people to Mars, the equipment to land on Mars, the robots to prepare the settlement for humans. For a one-way mission, all the technology exists.” Yet the four astronauts chosen for the trip will be stuck on Mars—forever. And despite Mars One’s thorough planning, there are a number of challenges that may prevent the mission from ever taking place. The biggest road block could be the mission's huge cost ($6 billion). However, Lansdorp is confident that Mars One will be able to fund the project by selling the broadcast rights for the mission and subsequent experiences living on the planet.
Those broadcast rights will also play a part in helping to select the people who will be sent to Mars. Lansdorp said the company will hold a selection process similar to a reality show. Lansdorp is expecting at least 1 million applications from people around the world. In addition to the cost, several other potential problems could inhibit (阻止) the mission to Mars.
“It’s even more challenging to send people there with life support, with food, with air, with all the other things like books, entertainment, means of communication and of providing for their own resources for a long stay on Mars,” said Adam Baker, senior lecturer in space engineering at Kingston University in London. “The size of the rockets you’d need to do this would be absolutely colossal.”
1.According to Project Mars One, humans could send four people to Mars within the next ________years.
A.seven B.eight C.ten D.six
2.According to Bas Lansdorp, which of the following is NOT TRUE?
A.Robots are prepared for the settlement for humans.
B.He could not come up with the fund for Mars One.
C.We humans have the rockets to send people to Mars.
D.The equipment is ready for humans to land on Mars.
3.The word “colossal” in the last paragraph is closest in meaning to ___________.
A.very large B.very small
C.medium D.average
4.Which of the following is an appropriate title for this passage?
A.Ready for a Round Trip to Mars
B.Ready for a Short Visit to Mars
C.Ready for a One-way Trip to Mars
D.Ready for a Walk on Mars
高三英语阅读理解中等难度题查看答案及解析
Most glasses help people see better, but a new invention from Japan may soon improve language skills and ________language barriers instead.
High-tech Company NEC has ________a device that it says willusers to communicate with people of different.
Shaped like a pair of eyeglasseswithout the lenses(镜片), the computer-assisted Tele Scouter woulda picture-forming device to present almost real-time translations directly onto theretina(视网膜). The text, providedthrough voice recognition and programs, would effectively provide movie-like “subtitles” (字幕)during a conversation between two peoplethe glasses.
“You can keep theflowing,” NEC market development official Takayuki Omino told reporters at Tokyo expositionthe device was on display. “This could also be used for talks ________with secret information,” says Omino,that there would be no need for translators.
Each user’swords would beby microphone, translated, and be instantlyfor conversation partners invisual texts and as audio delivered through headphones.
Users can still see their conversation partner’s face because the text isonto only part of the retina—the first time such technology is used in a commercial product, according to NEC.
The company plans to put the Tele Scouter in Japan in November next year, ________ at the beginning without the translation mode.
1.A. cut off B. cut up C. cut in D. cut down
2.A. come across B. come up with C. come through D. come down
3.A. allow B. promise C. force D. leave
4.A. backgrounds B. cultures C. languages D. customs
5.A. so B. or C. but D. while
6.A. admit B. adopt C. agree D. adapt
7.A. designer’s B. translator’s C. producer’s D. user’s
8.A. instantly B. strangely C. suddenly D. slowly
9.A. admission B. translation C. preparation D. permission
10.A. bearing B. carrying C. wearing D. taking
11.A. discussion B. argument C. conversation D. translation
12.A. where B. which C. why D. how
13.A. connected B. satisfied C. joined D. covered
14.A. stating B. noticing C. realizing D. criticizing
15.A. spoken B. imagined C. written D. expected
16.A. made up B. picked up C. turned up D. brought up
17.A. agreeable B. acceptable C. believable D. available
18.A. either B. neither C. none D. both
19.A. placed B. got C. passed D. knocked
20.A. therefore B. although C. however D. While
高三英语完型填空中等难度题查看答案及解析
Most glasses help people see better, but a new invention from Japan may soon improve language skills and________language barriers instead.
High-tech Company NEC has________a device that it says will________users to communicate with people of different.
Shaped like a pair of eyeglasses________without the lenses(镜片), the computer-assisted Tele Scouter would a picture-forming device to present almost real-time translations directly onto the________retina(视网膜). The text, provided instantly ________ voice recognition and________ programs, would effectively provide movie-like “subtitles” (字幕) during a conversation between two people________the glasses.
“You can keep the________flowing,” NEC market development official Takayuki Omino told reporters at Tokyo exposition (展览会)________the device was on display. “This could also be used for talks ________with secret information,” says Omino, stating that there would be no ________ for translators.
Each user’s________words would be________by microphone, translated, and be instantly________for conversation partners in________visual text and as audio delivered through headphones.
Users can still see their conversation partner’s face because the text is________onto only part of the retina—the first time such technology is used in a commercial product, according to NEC.
The company plans to put the Tele Scouter in Japan in November next year,________at the beginning without the translation mode.
1.A. cut off B. cut down C. cut in D. cut up
2.A. come up with B. come across C. come through D. come down
3.A. force B. promise C. allow D. leave
4.A. backgrounds B. cultures C. customs D. languages
5.A. so B. but C. or D. while
6.A. adopt B. admit C. agree D. adapt
7.A. designer’s B. translator’s C. user’s D. producer’s
8.A. through B. during C. within D. beyond
9.A. inventiong B. invitation C. preparation D. translation
10.A. bearing B. wearing C. carrying D. taking
11.A. discussion B. argument C. conversation D. translation
12.A. which B. where C. why D. how
13.A. connected B. satisfied C. joined D. covered
14.A. hope B. doubt C. need D. wonder
15.A. expected B. imagined C. written D. spoken
16.A. picked up B. made up C. turned up D. brought up
17.A. agreeable B. acceptable C. believable D. available
18.A. either B. neither C. both D. none
19.A. placed B. passed C. got D. knocked
20.A. therefore B. while C. however D. although
高三英语完型填空中等难度题查看答案及解析
Your circle of friends may help you get a better reading on your overall health and wellness rather than just using wearable devices such as a Fitbit, according to researchers.
The study, published in the journal PLOS ONE, analyzed what the structure of social networks says about the state of health, happiness and stress.
"We were interested in the topololgy (拓扑学) of the social network — what does my position within my social network predict about my health and well-being said Nitesh V. Chawla, a professor at the University of Notre Dame in the US.
“What we found was the social network structure provides a significant improvement in predictability of wellness states of an individual over just using the data obtained from wearables, like the number of steps or heart rate,” Chawla said.
For the study, participants wore a Fitbit to capture health behavior data about walking, sleeping, heart rate and overall activity level. They also completed surveys and self-assessments of their stress, happiness and positivity.
Cbawla and his team then analyzed the data with a machine learning model, alongside the connections and characteristics of an individual's social network.
The study showed a strong correlation (相关性) between social network structures, heart rate, number of steps and level of activity.
Social network structure provided significant improvement in predicting one's health and well-being compared to just looking at health behavior data from the Fitbit alone.
For example, when social network structure is combined with the data from wearables, the machine learning model achieved a 65 percent improvement in predicting happiness.
The model also achieved a 54 percent improvement in predicting one's self-assessed health prediction, a 55 percent improvement in predicting positive attitude and a 38 percent improvement in predicting success.
This study asserts (断言) that without social network information, we only have an incomplete view of an individual's wellness state, and to be fully predictive or to be able to obtain interventions (干扰). It is critical to be aware of the social network, Chawla said.
1.What did the study find?
A.How people choose their friend circles.
B.What factors decide your friend circles.
C.How your circle of friends influences you
D.What your circle of friends says about your health.
2.How did the researchers draw their conclusions?
A.By comparing data. B.By giving examples.
C.By analyzing cause and effect D.By describing personal experiences.
3.What does the underlined word “critical” mean in the last paragraph?
A.Easy. B.Common.
C.Important. D.Challenging.
4.What do Chawla's words in the last paragraph tell us?
A.How fitness devices can connect your circle of friends
B.That a person's social network is part of his health picture.
C.The best ways to make friends and keep a healthy social circle
D.That wearable devices are not useful for understanding someone's health.
高三英语阅读理解困难题查看答案及解析
Sometime early in the next century, human beings will move to Mars. They will live there for about a year, and then will be replaced with another group of pioneers. Building the base on Mars will advance our knowledge of the solar system and aid in our understanding of the earth.
We already know that Mars resembles the earth in many aspects: general size, presence of water, length of day, range of temperatures. These resemblances have caused many people to consider a centuries-long project: to terraform Mars. Terraforming means altering a planet’s surface so that Earth’s life forms can survive there. This concept, previously found only in science fiction is now being seriously considered by scientists.
Terraforming Mars is theoretically simple: add nitrogen and oxygen to the atmosphere; pump water to the surface; and add the earth’s plants and animals in the order in which they developed on Earth. But it will take at least 300 years.
Some people think that such a project is too huge for humans to undertake, but there are very good reasons to make the attempt. The earth now contains some 6 billion people, and no one has any idea of how many humans the earth can support. Our very existence and numbers are threatening many other species. We also have had some experience with terraforming our own planet: altering the landscape, the atmosphere and the climate. Currently terraforming earth has become a wiser activity as we try to control global warming, air and water pollution, and preserve some natural living places.
While the possibility of such a project is small, it is not impossible .Even if earth –bound societies come and go in the next 300 years, the project can continue through the work of the Mars settlers without the need for constant backing from the earth.
The future existence of all the people in our world may very well depend upon our ability to terraform Mars.
1.What would be the best title for this passage?
A.Terraforming Mars. B.Saving the Earth
C.Travelling to Mars. D.A Newly-found Place
2.What does the underlined word “altering” mean in the second paragraph?
A.Warming. B.Changing. C.Planting. D.Building
3.According to the passage the main purpose of terraforming Mars is to ________.
A.do some scientific research work
B.find out its similarity to earth
C.avoid the dying away of many other species
D.find on Mars living place for the increasing human beings
4.The main reason for causing many people to consider terraforming Mars is that _______.
A.there are some resemblances between Earth and Mars.
B.terraforming Mars is theoretically simple
C.we have had some experience with terraforming our own planet: Earth
D.the development of science and technology is very rapid
5.What’s the author’s attitude towards the project?
A.Optimistic. B.Negative
C.Sceptical(怀疑的) D.Objective.
高三英语阅读理解中等难度题查看答案及解析