Pratique du Shadowing: This machine lives inside you - Apprendre l'anglais à l'oral avec la vidéo

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74 phrases
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This is a machine that keeps you alive.
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This is your cell.
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A cell is the smallest unit of life,
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yet it operates with extraordinary precision.
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It is a complete system,
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constantly working to maintain balance,
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produce energy, and carry out the processes that sustain you.
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Surrounding the cell is the cell membrane.
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This thin, flexible barrier separates the inside from the outside world.
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It is not just a wall, it is a gatekeeper.
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It controls what enters and what leaves,
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allowing nutrients in, pushing waste out,
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and receiving signals from the environment.
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Inside the membrane is the cytoplasm,
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a dense, fluid environment where life unfolds at the microscopic level.
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It is filled with molecules,
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enzymes, and structures, all interacting in a continuous flow of activity.
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At the core of the cell lies the nucleus.
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This is where the cell's genetic material is stored.
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DNA contains the instructions for everything the cell does,
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How it grows, how it functions, and how it reproduces.
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The nucleus protects this information and regulates access to it.
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Within the nucleus is the nucleolus,
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a specialized region responsible for producing ribosomes.
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These ribosomes are essential.
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They are the structures that build proteins.
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Ribosomes can be found throughout the cell.
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Some move freely in the cytoplasm,
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while others are attached to membranes.
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Their role is to read genetic instructions and assemble proteins,
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one amino acid at a time.
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Connected to this process is the endoplasmic reticulum.
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The rough endoplasmic reticulum is covered in ribosomes and is involved in protein production and processing.
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Proteins made here are folded into specific shapes and prepared for transport.
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The smooth endoplasmic reticulum has no ribosomes.
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Its role is different.
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It produces lipids, breaks down toxins,
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and helps regulate chemical levels within the cell.
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Proteins and lipids then move to the Golgi apparatus.
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This structure acts like a distribution center.
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It modifies molecules, sorts them,
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and packages them for delivery.
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Each package is sent to a specific location,
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ensuring that every part of the cell receives what it needs.
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Transport within the cell is carried out by vesicles.
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These small membrane-bound sacs move materials from one place to another.
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They carry cargo between organelles and deliver substances to the cell membrane when they need to be released.
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Energy for all of these processes comes from the mitochondria.
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These structures convert nutrients into ATP,
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the form of energy the cell can use.
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Without this energy supply, none of the cell's functions could continue.
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The cell also contains systems for cleanup and recycling.
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Lysosomes break down waste materials,
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damaged structures, and foreign substances.
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They ensure that the cell remains efficient and free of debris.
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Peroxysomes assist in detoxification and help break down fatty acids.
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They also protect the cell from harmful byproducts of metabolism.
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Supporting everything is the cytoskeleton.
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This network of protein fibers gives the cell its shape and structure.
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It also allows movement, both of the cell itself and of materials inside it.
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In plant cells, additional structures are present.
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A rigid cell wall surrounds the membrane, providing strength and support.
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Chloroplasts capture light energy and convert it into chemical energy through photosynthesis.
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A large central vacuole stores water and helps maintain internal pressure.
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All of these components work together as a unified system.
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Information flows from DNA.
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Proteins are built and distributed.
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Energy is produced and used.
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Waste is removed.
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The cell is constantly active,
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constantly adjusting, constantly maintaining the conditions required for life.
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This is not just a structure.
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It is a system of coordination, communication, and control.
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This is your cell.

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Vocabulaire et conseils d’expression pour cette leçon

Cette leçon d’expression orale de niveau C2 s’appuie sur la vidéo « This machine lives inside you ». Les mots qui reviennent le plus souvent : cell, structure, protein, energy, membrane. Cette vidéo contient 74 phrases et 594 mots à répéter en shadowing. La partie parlée dure 4:36. Le locuteur parle à un rythme régulier d’environ 129 mots par minute, confortable pour le shadowing. Seuls 75 % des mots font partie des 3 000 mots les plus courants en anglais, le vocabulaire est donc exigeant.

Vocabulaire clé de cette vidéo

Les 15 mots les plus avancés de la vidéo, avec leur prononciation et leur sens :

MotPrononciationSens
ribosome nom/ˈɹaɪbəˌsoʊm/ribosome
membrane nom/ˈmɛm.bɹeɪn/membrane
reticulum nomréticulum, réseau
nucleus nom/ˈnuː.kli.əs/noyau
cytoplasm nom/ˈsaɪtəʊˌplæzəm/cytoplasme
lipid nom/ˈlɪpɪd/lipide
nutrient nom/ˈnuː.tɹi.ənt/nutriment
molecule nom/ˈmɑ.lɪ.kjul/molécule
surround verbe/səˈɹaʊnd/entourer, cerner
regulate verbe/ˈɹɛɡ.jə.leɪt/régler
chloroplast nom/ˈklɔːɹəʊˌplæst/chloroplaste
cytoskeleton nomcytosquelette
detoxification nom/diˈtɑk.sɪ.fɪˌkeɪ.ʃən/détoxification
gatekeeper nom/ˈɡeɪtˌki.pɚ/gardien, gardienne
lysosome nom/ˈlaɪsəˌsoʊm/lysosome

Les verbes à particule que vous entendrez

MotPrononciationSens
break down verbetomber en panne
carry out verbe/ˈkæ.ɹi aʊt/sortir, transporter dehors

Prononciation à surveiller

  • Les sons « sh » et « zh »: detoxification /diˈtɑk.sɪ.fɪˌkeɪ.ʃən/, specialize /ˈspɛʃəˌlaɪz/, coordination /kəʊˌɔːdɪˈneɪʃən/, precision /pɹɪˈsɪʒ.ən/
  • Mots longs — placez bien l’accent: cytoplasm /ˈsaɪtəʊˌplæzəm/, detoxification /diˈtɑk.sɪ.fɪˌkeɪ.ʃən/, microscopic /ˌmaɪ.kɹəˈskɑ.pɪk/, mitochondrion /ˌmaɪtəˈkɑndɹiən/, photosynthesis /ˌfoʊ.toʊˈsɪn.θə.sɪs/

Les sons difficiles pour les francophones :

  • /tʃ/ et /dʒ/ — à ne pas adoucir en « ch » et « j »: rigid /ˈɹɪd͡ʒ.ɪd/, attach /əˈtæt͡ʃ/, adjust /əˈd͡ʒʌst/
  • /r/ anglais — langue recourbée, sans frotter la gorge: ribosome /ˈɹaɪbəˌsoʊm/, membrane /ˈmɛm.bɹeɪn/, nutrient /ˈnuː.tɹi.ənt/, surround /səˈɹaʊnd/, regulate /ˈɹɛɡ.jə.leɪt/

Comment s’entraîner avec cette vidéo

  1. Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
  2. Répétez phrase par phrase à vitesse normale, en reprenant chacune jusqu’à ce que votre rythme corresponde à celui du locuteur.
  3. Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme ribosome, membrane, reticulum.

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.

Technique du shadowing : lire le guide complet étape par étape →