Some of the world's most important scientists think the idea of people living on Mars will come true one day.Stephen Hawking believed humans must move into space to survive. "Once we spread out into space and establish independent colonies，our future should be safe." he said.Robert Zubrin，a rocket scientist，agrees and thinks starting with Mars makes the most sense.He thinks sending people to Mars will allow us to learn a lot—for example，about the ability of humans to live in a very different environment.
However，scientists will need to terraform Mars for people to be able to live.Terraforming means changing the environment on a planet so that it is similar to Earth's.One of the main goals of terraforming Mars is to warm it up because the average temperature there is about -60℃.One idea for warming Mars is to build factories there that produce greenhouse gases.This could take many centuries.However，it should lead to rainfall and the growth of plants，resulting in more air that people can breathe.
Another big concern for scientists is whether humans can move to Mars and still stay healthy in mind and body.As a test，six people lived in a Mars-like environment in Hawaii for a year before "returning to Earth" recently.It was a 1，200-square-foot room that was on the side of a volcano and used the sun for energy.Christiane Heinicke，one of the people who lived there，said that one of the biggest issues was feeling bored.So humans on Mars would always need to keep themselves busy with various activities.
One particular organisation based in Europe is planning to send the first humans to Mars before 2030.The organisation believes that its project is giving people worldwide the chance to be part of the first human crew ever to live on Mars for good.However，many experts think the project's cost of USS6 billion is too low for it to be successful.The American space agency NASA believes that sending people to Mars would cost about USS100 billion，although this estimate is based on bringing them back to Earth，too.Regardless，it seems that humans living on Mars may well happen a lot sooner than most people believe.
（1）What can we learn if we send humans to Mars according to Robert Zubrin？ According to Robert Zubrin，sending people to Mars will allow us to learn a lot—for example，about the ability of humans to live in a very different environment.According to Robert Zubrin，sending people to Mars will allow us to learn a lot—for example，about the ability of humans to live in a very different environment.
（2）What does "terraforming" mean？ Terraforming means changing the environment on a planet so that it is similar to Earth's.Terraforming means changing the environment on a planet so that it is similar to Earth's.
（3）Please decide which part is false in the following statement，then underline it and explain why.
According to the test，in order to stay healthy in mind and body on Mars，it is necessary for humans on Mars to stay away from various activities. According to the test，in order to stay healthy in mind and body on Mars，it is necessary for humans on Mars to stay away from various activities.According to Christiane Heinicke，one of the people who lived there，one of the biggest issues was feeling bored.So humans on Mars would always need to keep themselves busy with various activities.According to the test，in order to stay healthy in mind and body on Mars，it is necessary for humans on Mars to stay away from various activities.According to Christiane Heinicke，one of the people who lived there，one of the biggest issues was feeling bored.So humans on Mars would always need to keep themselves busy with various activities.
（4）What should we do now before humans can live on Mars？ （In about 40 words） First of all，we need to terraform Mars to warm it up so that people will be able to live there.Second，build factories there that produce greenhouse gases.Third，keep busy with various activities so that we won't feel bored there.First of all，we need to terraform Mars to warm it up so that people will be able to live there.Second，build factories there that produce greenhouse gases.Third，keep busy with various activities so that we won't feel bored there.
【考點(diǎn)】人與自我．
【答案】According to Robert Zubrin，sending people to Mars will allow us to learn a lot—for example，about the ability of humans to live in a very different environment.；Terraforming means changing the environment on a planet so that it is similar to Earth's.；According to the test，in order to stay healthy in mind and body on Mars，it is necessary for humans on Mars to stay away from various activities.According to Christiane Heinicke，one of the people who lived there，one of the biggest issues was feeling bored.So humans on Mars would always need to keep themselves busy with various activities.；First of all，we need to terraform Mars to warm it up so that people will be able to live there.Second，build factories there that produce greenhouse gases.Third，keep busy with various activities so that we won't feel bored there.
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發(fā)布：2024/4/20 14:35:0組卷：7引用：2難度：0.5
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