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 …
I'm not sure, but I think it could be possible in the future. Currently, scientists are working to find ways to send humans to the Mars, so I suppose there are some possibilities. Probably, it will take a long time because the environment on the Mars is very different. The weather on this planet is cold, the water is frozen, and there is too much carbon dioxide, which is dangerous for our health, so I guess it will be challenging.
I think that in the future, humans can live on Mars if we have a special, giant machine to support everything and turn all things into the same conditions as on Earth.
I think that in the future humans will probably not live on Mars because this planet is too hostile to support life. Its main elements do not guarantee that they can be efficient like water, oxygen and other elements that are essential.
Who knows? Maybe in a future, human will be living in Mars with aliens.
I don't think so, because most of Mars's air is carbon dioxide and it's not secure for personal breathing, also the most of the water there is probably frozen so it will not enough for human using , so I think the Mars it will not support the human life.
Now i really understanding the language level B2 however i practicing this level because i wanna started to IELTS exam.
That's a very interesting topic. Maybe in the future, humans will move to Mars or another planet based on the science developing.
Actually,I don't think so,cause obviously most of Mars's air is carbon dioxide which is not the normal gas that our lungs adapted to breath, moreover Mars is much more colder than earth and the sources of water on it have already frozen ,for these reasons I don't think so that Mars will support human's life.
I don't think so. At this time, it doesn't seem possible because the air and water conditions on Mars are not suitable for humans. We could die, and the cost of maintaining life on Mars would be extremely high due to the materials needed for survival.
Even if we could live on Mars, I believe we might face serious health issues, such as developing illnesses, tumors, or infertility. So, while living on Mars might be possible in the future, we still need to learn much more about the planet before making it a reality.