Move Earth—it’s no science fiction

LONDON—Scientists have found an unusual way to prevent our planet from overheating：move it to a cooler spot. All you have to do is send a few comets(彗星)in the direction of Earth, and its orbit will be changed. Our world will then be sent spinning into a safer, colder part of the solar system.

This idea for improving our climate comes from a group of US National Aeronautics and Space Administration (NASA) engineers and American astronomers. They say their plan could add another six billion years to the useful lifetime of our planet—effectively doubling its working life.

The plan put forward by Dr. Laughlin, and his colleagues Don Korycansky and Fred Adams, needs carefully directing a comet or asteroid so that it passes close by our planet and sends some of its gravitational energy to Earth.

“Earth’s orbital speed would increase as a result and we would move to a higher orbit away from the Sun,”Laughlin said.

Engineers would then direct their comet so that it passed close to Jupiter or Saturn. The comet would pick up energy from one of these giant planets. Later its orbit would bring it back to Earth, and the process would be repeated.

In the short term, the plan provides an ideal way to global warming, although the team was actually concerned with a much greater danger. The sun is certain to heat up in about a billion years and so “seriously compromise” our biosphere(生物圈)—by cooking us.

That’s why the group decided to try to save Earth.

The plan has one or two worrying aspects, however. For a start, space engineers would have to be very careful about how they directed their asteroid or comet towards Earth. The smallest miscalculation(誤算)in orbit could fire it straight at Earth—with deadly consequences.

There is also the question of the Moon. As the current issue of Scientific American magazine points out, if Earth was pushed out of its current position it is “most likely the Moon would be stripped away from Earth,” it states. This would greatly change our planet’s climate.

1．What makes the scientists plan to move Earth?

A．A few comets are moving to the direction of Earth.

B．Earth’s working life is coming to an end soon.

C．Earth will become too hot for mankind to keep alive.

D．The moon is moving farther and farther away from Earth.

2．If the plan is successful, Earth will have a working life of ________ years.

A．12 billion B．6 billion

C．18 billion D．24 billion

3．What serious problems might the plan cause according to the passage?

A．The comet might hit Earth and man might lose the moon.

B．Earth might be moved too far away and man might be frozen to death.

C．The comet might hit Jupiter or Saturn and never return to Earth.

D．Earth’s working life might be greatly shortened.

4．What does the underlined word “compromise” mean?

A．provide B．benefit

C．share　 D．endanger

1-4 CAAD

1.    文章首句說科學家們找到了一種非同尋常的辦法防止地球過熱，第六段又說該計劃提供了解決地球變暖問題的理想辦法，但科學家們真正關(guān)心的是更大的危險：大約十億年以后太陽肯定會更炙熱，以至于將人類化為灰燼。

2.    據(jù)文章第二段末句可知答案。注意關(guān)鍵詞語：another six billion years, doubling its working life。

3.    最后兩段分別指出該計劃可能帶來的兩大惡果：一是萬一軌道計算出錯會使被控星體撞向地球,二是地球脫離原軌道后很可能會失去月球，從而導致氣候巨變。

本題可用排除法排除不符合文意的答案。全句意為：大約十億年以后陽光肯定會更加炙熱，從而嚴重損害地球的生態(tài)環(huán)境——把人類烤為灰燼！

練習冊系列答案
相關(guān)習題

科目：高中英語 來源： 題型：閱讀理解

Move Earth – it’s no science fiction

LONDON – Scientists have found an unusual way to prevent our planet from overheating: move it to a cooler spot. All you have to do is send a few comets (彗星) in the direction of Earth, and its orbit will be changed. Our world will then be sent spinning into a safer, colder part of the solar system.

This idea for improving our climate comes from a group of US National Aeronautics and Space Administration（NASA）engineers and American astronomers. They say their plan could add another six billion years to the useful lifetime of our planet—effectively doubling its working life.

The plan put forward by Dr Laughlin, and his colleagues Don Korycansky and Fred Adams ,needs carefully directing a comet or asteroid so that it passes close by our planet and sends some of its gravitational energy to Earth.

“Earth’s orbital speed would increase as a result and we would move to a higher orbit away from the Sun,” Laughlin said.

Engineers would then direct their comet so that it passed close to Jupiter or Saturn. The comet would pick up energy from one of these giant planets. Later its orbit would bring it back to Earth, and the process would be repeated. In the short term, the plan provides an ideal way to global warming, although the team was actually concerned with a much greater danger. The sun is certain to heat up in about a billion years and so “seriously compromise” our biosphere（生物圈）— by cooking us.

That’s why the group decided to try to save Earth.

The plan has one or two worrying aspects, however. For a start, space engineers would have to be very careful about how they directed their asteroid or comet towards Earth. The smallest miscalculation（誤算）in orbit could fire it straight at Earth—with deadly consequences.

There is also the question of the Moon. As the current issue of Scientific American magazine points out, if Earth was pushed out of its current position it is “most likely the Moon would be stripped away from Earth,” it states. This would greatly change our planet’s climate.

What makes the scientists plan to move Earth?

       A．A few comets are moving to the direction of Earth.

       B．Earth’s working life is coming to an end soon.

       C．Earth will become too hot for mankind to keep alive.

       D．The moon is moving farther and farther away from Earth.

If the plan is successful, Earth will have a working life of ______years.

       A．12 billion B．6 billion   C．18 billion  D．24 billion

What serious problems might the plan cause according to the passage?

       A．The comet might hit Earth and man might lose the moon.

       B．Earth might be moved too far away and man might be frozen to death.

       C．The comet might hit Jupiter or Saturn and never return to Earth.

       D．Earth’s working life might be greatly shortened.

What does the underlined word “compromise” mean?

       A．provide    B．benefit    C．share D．endanger

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

Move Earth—it’s no science fiction

LONDON-Scientists have found an unusual way to prevent our planet from overheating: move it to a cooler spot. All you have to do is send a few comets（彗星）in the direction of Earth, and its orbit will be changed. Our world will then be sent spinning into a safer, colder part of the solar system.

This idea for improving our climate comes from a group of US National Aeronautics and Space Administration（NASA） engineers and American astronomers. They say their plan could add another six billion years to the useful lifetime of our planet—effectively doubling its working life.

The plan put forward by Dr Laughlin, and his colleagues Don Korycansky and Fred Adams

,needs carefully directing a comet or asteroid so that it passes close by our planet and sends some of its gravitational energy to Earth.

“Earth’s orbital speed would increase as a result and we would move to a higher orbit away from the Sun,”Laughlin said.

Engineers would then direct their comet so that it passed close to Jupiter or Saturn. The comet would pick up energy from one of these giant planets. Later its orbit would bring it back to Earth, and the process would be repeated.

In the short term, the plan provides an ideal way to global warming, although the team was actually concerned with a much greater danger. The sun is certain to heat up in about a billion years and so “seriously compromise” our biosphere（生物圈）—by cooking us.

That’s why the group decided to try to save Earth.

The plan has one or two worrying aspects, however. For a start, space engineers would have to be very careful about how they directed their asteroid or comet towards Earth. The smallest miscalculation（誤算）in orbit could fire it straight at Earth—with deadly consequences.

There is also the question of the Moon. As the current issue of Scientific American magazine points out, if Earth was pushed out of its current position it is “most likely the Moon would be stripped away from Earth,” it states. This would greatly change our planet’s climate.

1. What makes the scientists plan to move Earth?

A. A few comets are moving to the direction of Earth.

B. Earth’s working life is coming to an end soon.

C. Earth will become too hot for mankind to keep alive.

D. The moon is moving farther and farther away from Earth.

2.If the plan is successful, Earth will have a working life of ______years.

A.12 billion                  B.6 billion                    C.18 billion                  D.24 billion

3.What serious problems might the plan cause according to the passage?

A. The comet might hit Earth and man might lose the moon.

B. Earth might be moved too far away and man might be frozen to death.

C. The comet might hit Jupiter or Saturn and never return to Earth.

D. Earth’s working life might be greatly shortened.

4.What does the underlined word “compromise” mean?

A. provide                    B. benefit              C. share     D. endanger

5.Which of the following best shows how the plan would work?

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

Move Earth — it’s no science fiction

LONDON — Scientists have found an unusual way to prevent our planet from overheating: move it to a cooler spot. All you have to do is send a few comets（彗星）in the direction of Earth, and its orbit will be changed. Our world will then be sent spinning into a safer, colder part of the solar system.

This idea for improving our climate comes from a group of US National Aeronautics and Space Administration（NASA） engineers and American astronomers. They say their plan could add another six billion years to the useful lifetime of our planet—effectively doubling its working life.

The plan put forward by Dr Laughlin, and his colleagues Don Korycansky and Fred Adams ,needs carefully directing a comet or asteroid so that it passes close by our planet and sends some of its gravitational energy to Earth.

“Earth’s orbital speed would increase as a result and we would move to a higher orbit away from the Sun,” Laughlin said.

Engineers would then direct their comet so that it passed close to Jupiter or Saturn. The comet would pick up energy from one of these giant planets. Later its orbit would bring it back to Earth, and the process would be repeated. In the short term, the plan provides an ideal way to global warming, although the team was actually concerned with a much greater danger. The sun is certain to heat up in about a billion years and so “seriously compromise” our biosphere（生物圈）— by cooking us.

That’s why the group decided to try to save Earth.

The plan has one or two worrying aspects, however. For a start, space engineers would have to be very careful about how they directed their asteroid or comet towards Earth. The smallest miscalculation（誤算）in orbit could fire it straight at Earth—with deadly consequences.

There is also the question of the Moon. As the current issue of Scientific American magazine points out, if Earth was pushed out of its current position it is “most likely the Moon would be stripped away from Earth,” it states. This would greatly change our planet’s climate.

What makes the scientists plan to move Earth?

A. A few comets are moving to the direction of Earth.

B. Earth’s working life is coming to an end soon.

C. Earth will become too hot for mankind to keep alive.

D. The moon is moving farther and farther away from Earth.

If the plan is successful, Earth will have a working life of ______years.

A.12 billion                  B.6 billion                    C.18 billion                  D.24 billion

What serious problems might the plan cause according to the passage?

A. The comet might hit Earth and man might lose the moon.

B. Earth might be moved too far away and man might be frozen to death.

C. The comet might hit Jupiter or Saturn and never return to Earth.

D. Earth’s working life might be greatly shortened.

What does the underlined word “compromise” mean?

A. provide                    B. benefit                   C. share                     D. endanger

Which of the following best shows how the plan would work?

查看答案和解析>>

科目：高中英語 來源：2010-2011學年山西省高三第一次月考英語卷 題型：閱讀理解

Move Earth – it’s no science fiction

LONDON – Scientists have found an unusual way to prevent our planet from overheating: move it to a cooler spot. All you have to do is send a few comets (彗星) in the direction of Earth, and its orbit will be changed. Our world will then be sent spinning into a safer, colder part of the solar system.

This idea for improving our climate comes from a group of US National Aeronautics and Space Administration（NASA）engineers and American astronomers. They say their plan could add another six billion years to the useful lifetime of our planet—effectively doubling its working life.

The plan put forward by Dr Laughlin, and his colleagues Don Korycansky and Fred Adams ,needs carefully directing a comet or asteroid so that it passes close by our planet and sends some of its gravitational energy to Earth.

“Earth’s orbital speed would increase as a result and we would move to a higher orbit away from the Sun,” Laughlin said.

Engineers would then direct their comet so that it passed close to Jupiter or Saturn. The comet would pick up energy from one of these giant planets. Later its orbit would bring it back to Earth, and the process would be repeated. In the short term, the plan provides an ideal way to global warming, although the team was actually concerned with a much greater danger. The sun is certain to heat up in about a billion years and so “seriously compromise” our biosphere（生物圈）— by cooking us.

That’s why the group decided to try to save Earth.

The plan has one or two worrying aspects, however. For a start, space engineers would have to be very careful about how they directed their asteroid or comet towards Earth. The smallest miscalculation（誤算）in orbit could fire it straight at Earth—with deadly consequences.

There is also the question of the Moon. As the current issue of Scientific American magazine points out, if Earth was pushed out of its current position it is “most likely the Moon would be stripped away from Earth,” it states. This would greatly change our planet’s climate.

1.What makes the scientists plan to move Earth?

       A．A few comets are moving to the direction of Earth.

       B．Earth’s working life is coming to an end soon.

       C．Earth will become too hot for mankind to keep alive.

       D．The moon is moving farther and farther away from Earth.

2.If the plan is successful, Earth will have a working life of ______years.

       A．12 billion            B．6 billion              C．18 billion            D．24 billion

3.What serious problems might the plan cause according to the passage?

       A．The comet might hit Earth and man might lose the moon.

       B．Earth might be moved too far away and man might be frozen to death.

       C．The comet might hit Jupiter or Saturn and never return to Earth.

       D．Earth’s working life might be greatly shortened.

4.What does the underlined word “compromise” mean?

       A．provide               B．benefit               C．share                   D．endanger

 

查看答案和解析>>

同步練習冊答案