11.For people who are interested in space,nothing is more exciting than the idea of life on other planets.At first,when Mars showed signs of having life,everyone was excited.The idea has inspired many films and stories including The Martian(《火星救援》),which shows a man struggling to survive on Mars.But would it actually be possible to live there?
While the idea of living on Mars is great,the reality does not look as good.Mars does not have a friendly atmosphere(大氣) for humans.There is very little oxygen(氧氣)there,and because of the distance from the sun,It is also very cold.The temperature on Mars can be-62℃on average.This is much too cold for humans,
However,scientists say it might be possible to live there without an atmosphere.Mars has a similar amount of daytime to Earth,which means there's enough sunlight to grow plants inside safe buildings.However they would have to grow in soil from Earth.Mars does not have a strong enough atmosphere to stop the radiation(輻射) from space,which makes it dangerous to grow things in the soil.
Also,the radiation causes problems to our health.One way we could survive the radiation and cold temperature would be to build homes under the ground or within the rocks(巖石) on the planet.These would give humans the heat and protection the planet doesn't have.
Although it's a long time before we would be able to live on Mars,NASA is hoping to make some progress within the next 20years.
32.The film The Martian is mentioned in Paragraph 1toC.
A.show people's knowledge of Mars
B.tell readers something about the film
C.introduce the topic of living on Mars
D.explain the development of the film-making business
33.Which of the following about Mars is NOT true?C.
A.The temperature is cold.
B.There is very little oxygen.
C.Plants can grow on Mars easily.
D.Humans can possibly live on Mars.
34.Which is a good condition for humans to survive on Mars?B.
A.Mars has an atmosphere OK for humans.
B.Mars can get enough sunlight in the day.
C.The temperature is OK though quite cold.
D.Mars has soil for the plants to grow well.
35.What does the fourth paragraph mainly talk about?C.
A.How to protect Mars.
B.How to build homes on Mars.
C.What problems the radiation causes.
D.How to avoid bad conditions on Mars.