Pratique du Shadowing: Unit 6: Living on Mars - Apprendre l'anglais à l'oral avec la vidéo
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Scientists around the world are interested in exploring Mars.
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Over the past 30 years, there have been dozens of unmanned missions to the Red Planet.
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However, traveling to Mars is not easy.
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About two-thirds of these missions were failures.
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Because missions to Mars are dangerous and expensive, plans for a manned mission to Mars have been delayed for decades.
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The international space community is still not ready to send humans there.
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However, a manned mission to Mars is a goal that Dr. Bob Zubrin really believes in.
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NASA had plans to send people to Mars by 1981 that those plans were credible.
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We should have been on Mars a quarter century ago.
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Bob Zubrin is president of the Mars Society, an international organization he helped start in 1998.
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The Mars Society supports the goal of having humans explore and live on Mars.
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Its members talk to government agencies and private companies who get money to explore Mars.
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Zubrin is also doing research to prepare for a manned mission to Mars.
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The Mars Society set up living spaces designed for Mars in the deserts of Utah in the western United States
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and on Devon Island in northern Canada.
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These remote areas are similar in some ways to the surface of Mars.
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We're trying to find out what field tactics and techniques would be most usefully applied on Mars, what technologies would be most useful to the crew.
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Zubrin has ambitious ideas.
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He plans to colonize the planet.
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We're going to Mars because Mars is the planet that has on it the resources needed to support life, and therefore potentially someday human civilization.
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For Zubrin, Mars is the new frontier.
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Whether or not there has been life on Mars, whether or not there is life on Mars, there will be life on Mars.
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And it will be us.
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Herbren isn't the only one with plans for the red planet.
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Dr. Chris McKay has another idea.
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He wants to create an atmosphere on Mars so humans can live there.
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If we go to Mars and find that there is no life, then I say we might as well move in.
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McKay believes that for humans to eventually live on Mars, they need to start by warming up its atmosphere.
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Well, we know how to warm up planets.
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We're doing it on Earth.
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The first step to warming up the planet is putting greenhouse gases into the Martian atmosphere.
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The effect of these gases would be to melt the ice, bring back the atmosphere, and restore Mars to the conditions it was billions of years ago.
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But if humans are going to live on Mars, they're going to need oxygen.
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Chris McKay has an idea about how to create oxygen on Mars, using tiny organisms called cyanobacteria.
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These organisms are known as cyanobacteria.
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It's a type of algae, a single-cell type of algae, that has a very long history on Earth.
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These were the organisms that first made the oxygen.
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And these organisms could do the same thing on Mars, send them to Mars and ask them to change the world.
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Cyanobacteria, the planet changers.
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Scientists continue to study Mars so that one day humans will travel to the red planet.
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And perhaps someday in the future, humans will live there.
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À propos de cette leçon
Vous vous entraînez en anglais avec "Unit 6: Living on Mars" en utilisant la technique du Shadowing.
Qu'est-ce que la technique du Shadowing ?
Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.