Pratique du Shadowing: Science in English #3 | The Periodic Table - Apprendre l'anglais à l'oral avec la vidéo

Création de la leçon...
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Ahem.
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Good morning, everyone.
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Today we are going to learn about the periodic table.
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Think of it as a map of all known elements.
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Just like a map helps you find places, the periodic table helps scientists organize the building blocks of matter.
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Let's get started.
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Let's begin with a simple comparison.
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The English language has only 26 letters.
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Yet, those 26 letters can create millions of words and sentences.
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Nature is very similar.
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About 118 elements combine to create everything around us.
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So where can we find all these elements?
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We can find them in the periodic table.
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Let's begin with our learning objectives.
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By the end of this lesson, you will understand what the periodic table is.
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You will learn about atomic number and atomic mass.
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You will also identify groups and periods.
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Finally, you will recognize metals, nonmetals, and metalloids.
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So what is the periodic table?
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It is a chart that organizes all known elements.
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Each element has four important pieces of information.
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Its name, its chemical symbol, its atomic number, and its atomic mass.
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Now let's look more closely at these numbers.
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The atomic number is like an ID card.
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It tells us exactly which element it is.
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For example, hydrogen has an atomic number of one.
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Carbon has an atomic number of six.
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has an atomic number of 1.
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Carbon has an atomic number of 6.
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Gold has an atomic number of 79.
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The atomic mass tells us how heavy an atom is compared with a hydrogen atom.
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Not all elements are the same.
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Scientists divide them into three main categories.
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Metals Metals are usually shiny and conduct electricity well.
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Nonmetals do not conduct electricity well.
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Metalloids have properties of both metals and nonmetals.
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Each category has its own unique properties.
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Now let's learn how to read the periodic table.
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The horizontal rows are called periods.
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The vertical columns are called groups.
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Here is an important idea.
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Elements in the same group have similar properties.
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They behave in similar ways during chemical reactions.
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Let's look at a few examples.
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Group 1 contains the alkali metals.
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They are very reactive.
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Group 17 contains the halogens.
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They are reactive non-metals.
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Group 18 contains the noble gases.
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These elements are very stable and rarely react with other elements.
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Let's review what we have learned today.
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The periodic table organizes all known elements.
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Each element has an atomic number and an atomic mass.
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The table is arranged into periods and groups.
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Elements in the same group have similar properties.
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The periodic table helps scientists understand and compare all known elements.
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Thank you for listening.
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Vocabulaire et conseils d’expression pour cette leçon

Cette leçon d’expression orale de niveau B1 s’appuie sur la vidéo « Science in English ». Les mots qui reviennent le plus souvent : element, atomic, table, periodic, metals. Cette vidéo contient 57 phrases et 427 mots à répéter en shadowing. La partie parlée dure 3:40. Le locuteur parle à un rythme régulier d’environ 117 mots par minute, confortable pour le shadowing. Seuls 81 % 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
atomic adjectif/əˈtɑː.mɪk/atomique
periodic adjectif/ˌpɪɹiˈɑdɪk/périodique
nonmetal nomnon-métal
organize verbe/ˈɔɹɡənaɪz/organiser
scientist nom/ˈsaɪəntəst/scientifique, savant
metalloid nom/ˈmɛtəlɔɪd/métalloïde
atom nom/ˈætəm/atome
hydrogen nom/ˈhaɪdɹəd͡ʒ(ə)n/hydrogène
alkali nom/ˈæl.kəˌlaɪ/alcali
halogen nom/ˈhæl.ə.d͡ʒən/halogène
horizontal adjectif/ˌhoɹəˈzɑn.təl/horizontal
behave verbe/bɪˈheɪv/se comporter
arrange verbe/əˈɹeɪnd͡ʒ/arranger, organiser
divide verbe/dɪˈvaɪd/diviser, fendre
combine verbe/kəmˈbaɪn/combiner

Des phrases à répéter

Des phrases courtes et complètes de la vidéo, à réutiliser dans la conversation de tous les jours :

  • Let's begin with a simple comparison.
  • Let's begin with our learning objectives.
  • Let's look at a few examples.
  • Let's review what we have learned today.

La grammaire de cette vidéo

Les structures que le locuteur utilise le plus, avec les mots exacts de la vidéo :

StructureDans la vidéo
Voix passive be + participe passé — l’accent est mis sur ce qui arrive, pas sur qui le faitis compared · are called · is arranged
Futur avec « will » will + verbe — une décision, une promesse ou une prédictionwill understand · will learn · will also identify

Prononciation à surveiller

  • Mots longs — placez bien l’accent: periodic /ˌpɪɹiˈɑdɪk/, horizontal /ˌhoɹəˈzɑn.təl/

Les sons difficiles pour les francophones :

  • /h/ — il se souffle, il n’est pas muet: hydrogen /ˈhaɪdɹəd͡ʒ(ə)n/, halogen /ˈhæl.ə.d͡ʒən/, horizontal /ˌhoɹəˈzɑn.təl/, behave /bɪˈheɪv/
  • /tʃ/ et /dʒ/ — à ne pas adoucir en « ch » et « j »: hydrogen /ˈhaɪdɹəd͡ʒ(ə)n/, halogen /ˈhæl.ə.d͡ʒən/, arrange /əˈɹeɪnd͡ʒ/
  • /r/ anglais — langue recourbée, sans frotter la gorge: periodic /ˌpɪɹiˈɑdɪk/, organize /ˈɔɹɡənaɪz/, reactive /ɹiːˈæktɪv/, hydrogen /ˈhaɪdɹəd͡ʒ(ə)n/, horizontal /ˌhoɹəˈzɑn.təl/

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 atomic, periodic, nonmetal.

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 →