Terraforming (Earth-forming) other planets, also known as planetary engineering (行星工程), seems like a task still centuries away for mankind to accomplish. However, it is a vigorous topic that attracts both popular and scientific interest. Why should the possibility of terraforming other planets be studied when it may be centuries before we know enough to even decide if it’s a good idea?
Mankind is getting more and more hard facts about other planets. The atmosphere of Venus has been explored; robots have surveyed the surface of Mars; Mercury, Jupiter and Saturn have been studied by spacecraft. Speculations have been answered; new questions have been raised, and enough hard data is right now becoming available to allow us to make the first attempt of planetary engineering.
In the past, people with excellent ideas about terraforming have kept them to themselves, or buried them in a desk drawer because they did not realize that anyone else was interested. But now, a wide circle of people has begun to do this kind of work. For instance, NASA funded a project on transforming Mars.
There are several strong reasons which demand that the possibilities of terraforming be studied carefully. First, it’s an exciting idea of a possible future for human beings. Such thinking has a valuable role in providing options for our future directions. Secondly, the techniques of terraforming will also help contemporary technologies in weather and climate control. Thirdly, such study may assist us in detecting any possible existence of extraterrestrial intelligence (SETI, The Search for Extraterrestrial Intelligence, 地外文明搜索) and alien (異己的) civilizations on other planets.
Though the mission is far beyond our reach at the moment, we should at least keep our options open. Through debate and study on this subject, the possibility of rebuilding other planets to make them suitable homes for people may come true some day in the future.
【小題1】.
. According to the context, what’s the meaning of the word “speculation” in paragraph 2?
| A．The act of discussing something with a group of people. |
| B．The act of studying and researching. |
| C．The act of guessing without knowing all the facts about something. |
| D．The acting of writing letters to a certain organization. |
| A．They thought no one else would show interest in the idea. |
| B．They gradually came to find the idea crazy. |
| C．They thought the idea would never come true. |
| D．They had few resources for further study on this topic. |
| A．Even if we don’t succeed in terraforming, such study may help us to better understand technologies such as climate and weather control. |
| B．Such study may explore a new direction of development for human beings. |
| C．Such study may enable us to find the lives on other planets. |
| D．As the resources on Earth are being drained, it’s very urgent to study how to migrate (遷移) to other planets。 |
| A．It’s highly possible that terraforming other planets will come true so we should increase investing in this program. |
| B．Even if the idea of terraforming other planets may take centuries to realize, we have many reasons to support such studies. |
| C．Terraforming other planets is the best option for human being’s future. |
| D．More and more people are taking planetary engineering as their occupation. |
習題精選系列答案科目：高中英語 來源： 題型：閱讀理解
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.
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.
What does the underlined word “altering” mean in the second paragraph?
A．Warming. B. Changing. C. Planting. D. Building.
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
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
What’s the author’s attitude towards the project?
A．Optimistic B．Negative. C. Skeptical（懷疑的） D．Objective.
查看答案和解析>>
科目：高中英語 來源：云南省昆明市2010屆高三下學期教學質量檢測 題型：閱讀理解
E
Could we "terraform" Mars —that is, change its frozen, thin-aired surface into something more friendly and Earthlike? Should we? The first question has a clear answer: Yes, we probably could．Spacecraft, including the ones now exploring Mars, have found evidence that it was warm in its youth, with rivers flowing into vast seas．And right here on Earth, we've learned how to warm a planet: just add greenhouse gases to its atmosphere．Much of the CO2 that once warmed Mars is probably still there, in frozen dirt and polar ice caps, and so is the water．
Most of the work in terraforming, says NASA scientist Chris Mackay, would be done by life itself． "You don't build Mars," Mackay says．"You just warm it up and throw some seeds．" Powerful greenhouse gases could be produced from elements in dirt and air on Mars and blown into the atmosphere; by warming the planet, they would release the frozen CO2, which would quicken the warming and increase atmospheric pressure to the point where liquid water could flow．Meanwhile, says botanist James Graham of the University of Wisconsin, human settlers could seed the red rock with a succession （系列） of ecosystems ?first bacteria and lichens （地衣）, which survive in Antarctica, later mosses （苔蘚）, and after one thousand years or so, redwoods．Getting breathable oxygen levels out of those forests, though, could take thousands of years．
However, Mars is in no immediate danger．Some space scientists recently recommended going to the moon or an asteroid （小行星） first, and pointed out the space agency lacks the funds to go anywhere．It didn't estimate the cost of gardening a dead planet．
72．What is the most essential to make Mars fit for living?
A．Turn ice into flowing water． B．Clean the dirty atmosphere．
C．Make the atmosphere more suitable． D．Go to the moon or an asteroid first．
73．What does the author think of the idea ofterraforming Mars?
A．We could do it． B．We couldn't do it．
C．We should do it． D．We shouldn't do it．
74．In the botanist's opinion, man needs to __________.
A．enable Mars to clean its atmosphere
B．build a greenhouse on Mars
C．send some people to settle on Mars
D．cultivate ecosystems from lower to higher life form
75．What is the best title for the passage?
A．Making Mars the New Earth． B．A Good Way to Change the Universe
C．Humans' Great Power． D．Terrible Science and Technology．
查看答案和解析>>
科目：高中英語 來源：2011屆黑龍江大慶鐵人中學高三上學期第二次月考英語卷 題型：閱讀理解
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 resemblanc
es have caused many people to consider a centuries-long project: to terraform Ma
rs．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 b
y 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 t
o 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．
Small as the possibility of such a project is, 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．
【小題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． |
| A．Warming． | B．Changing． | C．Planting． | D．Building． |
| 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 |
| 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 |
查看答案和解析>>
科目：高中英語 來源：2014屆廣東汕頭四中高三年級第一次月考英語卷（解析版） 題型：閱讀理解
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（懷疑的） D．Objective.
查看答案和解析>>
科目：高中英語 來源：2010-2011學年黑龍江大慶鐵人中學高三上學期第二次月考英語卷 題型：閱讀理解
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．
Small as the possibility of such a project is, 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
查看答案和解析>>
湖北省互聯網違法和不良信息舉報平臺 | 網上有害信息舉報專區 | 電信詐騙舉報專區 | 涉歷史虛無主義有害信息舉報專區 | 涉企侵權舉報專區
違法和不良信息舉報電話：027-86699610 舉報郵箱：58377363@163.com
