Do the preparation task first. Then listen to the audio and do the exercises.
Preparation
Transcript
Teacher: So you've got a few minutes to discuss with your partner.
Student 1: So, as far as I know, the main similarity between Mars and Earth is that they can both support human life.
Student 2: Yeah, but do we know that's actually true? I mean, Mars is much colder than Earth, isn't it? It says here it's about minus 55 degrees most of the time, whereas on Earth only places like Antarctica get that cold.
Student 1: True. Well then, I suppose you could say both planets are a similar distance from the Sun?
Student 2: No way! Mars is much further away! It says here it's about 228 million kilometres, while Earth is about 150 million.
Student 1: Yes, but in space that's not that far. Jupiter is, like, almost 780 million kilometres. That's why we use astronomical units when we talk about distances in space. Earth is 1 astronomical unit from the Sun and Mars is 1.3. The difference doesn't sound so big when you look at it that way.
Student 2: I see what you mean. Jupiter is 5.2 astronomical units so I guess you're right. What other similarities are there between the two planets?
Student 1: Let's see … not the colour, obviously!
Student 2: Yeah! Earth is called the blue planet and Mars is called the red planet for pretty obvious reasons!
Student 1: Their sizes are pretty different. Mars is about half the size of Earth.
Student 2: What about this? It looks like the days on both planets are almost the same length. Earth's day is 24 hours but Mars's is about half an hour longer.
Student 1: You're right. OK, any other things they both share?
Student 2: I suppose you could say they have water in common.
Student 1: Could you? How?
Student 2: Well, Earth is 70 per cent water and Mars probably had huge oceans in the past. It's just that most of the water there now is probably frozen.
Student 1: Ah, I see. I don't think we can say the air is the same, though. Most of Earth's air is nitrogen and oxygen, but Mars …?
Student 2: Mars doesn't really have air, not compared with Earth. It's got about one per cent as much air as Earth.
Student 1: Right, and it's mostly carbon dioxide.
Student 2: Gravity is another difference. I didn't know this, but Mars has higher gravity than the Moon. But it's much less than on Earth, of course.
Student 1: Oh, yes. It says Mars has about 38 per cent of Earth's gravity.
Teacher: OK, let's see what you've found …
Hello
Absolutely no, because there isn't necessities of life. That has not Oxygen and very cold. Also it is a far away from the sun. It' s atmosphere consists of Carbon Dioxide.
Do you think people will live on Mars one day?
Despite the fact that people could maybe live one day on Mars, I dont' think that the exact same life that we had on earth will be feasible. We need to consider and to not forget to always on mind that animals and natue is a big part of our lives. Without them, we can't eat. On Mars, the power and the huge existents of forest, oceans, green lands will be absent. Of course with the technological advance we are able to do it obviously but without a rehearsal of what we knew on Earth.
From my perspective, I believe that it will never be feasible for humans to live on Mars. This is due to several factors. Firstly, unlike Earth, Mars is colder and lacks oxygen. Another issue is that it is closer to the sun, has almost no atmosphere, and lacks water to sustain human life. If we don't have enough funding, it could pose a major problem.
hey, i'm looking for someone who is improving his english like me! Would you like to give your instagram so we can talk in english?
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I suppose not because it's much colder there than on Earth, and the water is also cold. I think we wouldn't be able to live there because of the cold weather; people wouldn't enjoy their lives properly.
Maybe, but that is a far away theory, 'cause in the actuality there's not enough evidence. I think the destiny of the humanity is to dead, just like the series "Love, Death & Robots".
maybe it will happen if we could somehow overcome water , air and gravity obstacles
I think if some day humans can colonize Mars, the life will no be the same as an earth. Life is comfortable here, enjoy while as you can !!!
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