Pratique du Shadowing: SCIENCE 4 1 new - Life in an ecosystem - Apprendre l'anglais à l'oral avec YouTube

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Hello everyone.
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Today I'm going to talk about life in an ecosystem.
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An ecosystem is a place where living and non-living things work together.
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Living things include plants and animals.
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Non-living things include air, water, sunlight, and soil.
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All of these parts are important and they affect each other.
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For example, in a pond, you can see fish, frogs, plants, and birds.
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They all live together and depend on the same environment.
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There are many different types of ecosystems around the world.
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For example, forests have many trees and animals.
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Deserts are very dry and have little water.
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Grasslands have wide open spaces with grasses.
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Rainforests are warm, wet, and full of life.
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Each ecosystem has a different climate.
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Because of this, different plants and animals live in each place.
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Every organism lives in a habitat, which is its home.
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For example, a frog may live in a pond, while a fox lives in the forest.
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Each organism also has a niche or role.
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This means what it eats, how it behaves, and how it survives.
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Even if animals live in the same place, they can have different niches.
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This helps reduce competition and keeps the ecosystem balanced.
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Now, let's talk about energy.
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All energy in an ecosystem comes from the sun.
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Plants use sunlight to make their own food through a process called photosynthesis.
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Because they make their own food, plants are called producers.
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They are very important because they provide energy for other living things.
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Energy moves through an ecosystem in a food chain.
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A food chain shows who eats whom.
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For example, first the sun gives energy to the grass.
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Next, a rabbit eats the grass.
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Then a fox eats the rabbit.
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Finally, a larger predator may eat the fox.
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This shows how energy flows from one organism to another.
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But what happens when plants and animals die?
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This is where decomposers come in.
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Decomposers, such as fungi and bacteria, break down dead plants and animals.
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They return important nutrients to the soil.
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These nutrients help new plants grow, and the cycle continues.
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Without decomposers, dead matter would pile up and ecosystems would not function properly.
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In real life, ecosystems are more complex than a single food chain.
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Many food chains connect together to form a food web.
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A food web shows how different organisms are connected in many ways.
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For example, one animal may eat different kinds of food, and it may also be eaten by different predators.
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This makes the ecosystem more stable and flexible.
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In conclusion, an ecosystem is a complex system where all living and non-living things work together.
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Energy flows through food chains and food webs, and every organism has an important role.
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If one part of the ecosystem is damaged or removed, it can affect many other parts.
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That is why it is important to protect ecosystems and keep them balanced.
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Thank you for listening.

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À propos de cette leçon

Vous vous entraînez en anglais avec "SCIENCE 4 1 new - Life in an ecosystem" 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.

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