Pratique du Shadowing: TOEFL Listening Practice | Lecture | Hurricanes - Apprendre l'anglais à l'oral avec la vidéo

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79 phrases
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1
few events can rival the power of a hurricane
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we only have to look back at the devastation wreaked by Hurricane Katrina in August 2005 to realize this.
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While hurricanes are a natural phenomenon, some experts believe human activity may actually be impacting on their development.
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Tom Parker reports.
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Each year in the tropical regions surrounding the equator, hundreds of storms form at sea, some of which will intensify to hurricane level.
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Research suggests that the strength and duration of these storms is on the increase.
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Global warming could well be behind this shift.
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Hurricane expert Julia James explains how hurricanes form and talks about the possible influence of climate change on hurricanes.
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Hurricanes develop in warm tropical regions, both north and south of the equator.
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One prerequisite for hurricane formation is a warm ocean surface, at least 27 degrees Celsius.
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When equatorial winds pass over the sea, they suck up the warm, moist air.
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As the air is forced upwards, it gets cooler and condenses into clouds.
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This can result in the formation of cloud clusters and thunderstorms, known as tropical disturbances.
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The majority of these die out, but some go on to develop into full -blown hurricanes.
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This happens when converging equatorial winds set off a chain reaction of rising and sinking air.
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As wind speeds increase, cool air is sucked underneath the rising warm air and the storm begins to rotate.
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It will only be given hurricane status if wind speeds reach 74 miles per hour.
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and it's only when it hits land
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and is cut off from its supply of heat
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that it loses momentum
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but not without first unleashing winds of up to 185 miles per hour on coastal areas
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so a warm ocean surface is a key ingredient in hurricane development
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some experts have theorized that
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because global warming is heating up our oceans it is also boosting hurricane formation carbon dioxide and other man -made greenhouse gases
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Raise the temperature of the Earth's atmosphere.
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This leads to warmer sea surface temperatures, and a warm ocean will produce higher levels of water vapor than a cool one.
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This water vapor plays an important role in fueling hurricanes and keeping them spinning.
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It also increases precipitation when the storm reaches land.
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During Hurricane Katrina, rainfall exceeded 12 inches near New Orleans.
30
Evidence that hurricanes are becoming more severe is quite compelling.
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What we've seen in recent years is an increase in both the strength and duration of storms, with a higher percentage of devastating
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Category 4 and 5 hurricanes hitting land annually.
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Between 1970 and 2005, this figure doubled worldwide.
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But whether this trend can be attributed to human activity has yet to be scientifically established.
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Similarly, some experts have hypothesized that the violent storms we are seeing can actually be attributed to natural fluctuations in ocean currents.
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Whatever the case, if our seas continue to get warmer, hurricane -related losses in the 21st century may be devastating,
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especially given the fact that coastal populations are becoming denser and denser all the time.
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Number 1.
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How does a hurricane begin?
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Number 2.
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When is a hurricane at its most powerful?
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Number 3.
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According to Julia James, what can increased amounts of carbon dioxide lead to?
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Thank you.
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Number four.
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What happened globally between 1970 and 2005?
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Number 5.
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What disturbing assumption does the speaker arrive at?
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Number 1.
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How does a hurricane begin?
51
Hurricanes develop in warm tropical regions, both north and south of the equator.
52
One prerequisite for hurricane formation is a warm ocean surface, at least 27 degrees Celsius.
53
When equatorial winds pass over the sea, they suck up the warm, moist air.
54
As the air is forced upwards, it gets cooler and condenses into clouds.
55
This can result in the formation of cloud clusters and thunderstorms, known as tropical disturbances.
56
Number 2.
57
When is a hurricane at its most powerful?
58
it will only be given hurricane status
59
if wind speeds reach 74 miles per hour and it's only
60
when it hits land and is cut off from its supply of heat
61
that it loses momentum
62
but not without first unleashing winds of up to 185 miles per hour on coastal areas number three according to julia James,
63
what can increased amounts of carbon dioxide lead to?
64
Carbon dioxide and other man -made greenhouse gases raise the temperature of the Earth's atmosphere.
65
This leads to warmer sea surface temperatures, and a warm ocean will produce higher levels of water vapor than a cool one.
66
This water vapor plays an important role in fueling hurricanes and keeping them spinning.
67
It also increases precipitation when the storm reaches land.
68
Number four.
69
What happened globally between 1970 and 2005?
70
Evidence that hurricanes are becoming more severe is quite compelling.
71
What we've seen in recent years is an increase in both the strength
72
and duration of storms with a higher percentage of devastating
73
Category 4 and 5 hurricanes hitting land annually.
74
Between 1970 and 2005, this figure doubled worldwide.
75
Number 5.
76
What disturbing assumption does the speaker arrive at?
77
Whatever the case, if our seas continue to get warmer, hurricane -related losses in the 21st century may be devastating,
78
especially given the fact that coastal populations are becoming denser and denser all the time.
79
Thank you.

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Prononciation IAChaque phrase notée
Phonétique (IPA)Maîtrisez chaque son
VocabulaireEnrichissez votre lexique
Jeu de vocabulaireApprenez en jouant

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Vidéo recommandée

Vocabulaire et conseils d’expression pour cette leçon

Cette leçon d’expression orale s’appuie sur la vidéo « TOEFL Listening Practice ». Les mots qui reviennent le plus souvent : hurricane, warm, storm, wind, ocean. Cette vidéo contient 79 phrases et 852 mots à répéter en shadowing. La partie parlée dure 8:26. Le locuteur parle lentement, environ 101 mots par minute, ce qui laisse le temps d’imiter chaque son. 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

15 mots de la vidéo à retenir, avec leur prononciation et leur sens :

MotPrononciationSens
hurricane nom/ˈhʌɹɪkeɪn/ouragan
tropical adjectif/ˈtɹɑ.pɪ.kəl/tropical
cloud nom/ˈklaʊ̯d/nuage
coastal adjectif/ˈkoʊstəl/côtier
dense adjectif/ˈdɛns/dense
dioxide nom/daɪˈɑksaɪd/dioxyde
vapor nom/ˈveɪpɚ/vapeur
suck verbe/sʌk/sucer
duration nom/dʒʊˈɹeɪ.ʃən/durée
percentage nom/pə(ɹ)ˈsɛntɪd͡ʒ/pourcentage
atmosphere nom/ˈætməsˌfɪɹ/atmosphère
arrive verbe/əˈɹaɪv/arriver
spin verbe/spɪn/tournoyer, pivoter rapidement
annually adverbe/ˈæn.jʊə.li/annuellement
assumption nom/əˈsʌm(p).ʃ(ə)n/assomption

Les verbes à particule que vous entendrez

MotSens
die out verbes'éteindre
heat up verbechauffer

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 forced · is sucked · be given
Present perfect have/has + participe passé — une action passée qui compte encore maintenanthave theorized · we've seen · have hypothesized

Prononciation à surveiller

  • Les sons « th »: underneath /ˌʌndɚˈniθ/, thunderstorm /ˈθʌn.dɚˌstɔɹm/, hypothesize /haɪˈpɑ.θəˌsaɪz/, theorize /ˈθɪɹ.aɪz/
  • Les sons « sh » et « zh »: duration /dʒʊˈɹeɪ.ʃən/, assumption /əˈsʌm(p).ʃ(ə)n/, precipitation /pɹɪˌsɪpɪˈteɪʃn̩/, establish /ɪˈstæb.lɪʃ/, unleash /ʌnˈliʃ/
  • Mots longs — placez bien l’accent: momentum /ˌmə(ʊ)ˈmɛntəm/, precipitation /pɹɪˌsɪpɪˈteɪʃn̩/, similarly /ˈsɪm.ə.lə.li/, phenomenon /fəˈnɒm.ɪ.nən/, ingredient /ɪnˈɡɹiːdi.ənt/

Les sons difficiles pour les francophones :

  • /h/ — il se souffle, il n’est pas muet: hurricane /ˈhʌɹɪkeɪn/, greenhouse /ˈɡɹːnˌ(h)aʊs/, hypothesize /haɪˈpɑ.θəˌsaɪz/
  • /tʃ/ et /dʒ/ — à ne pas adoucir en « ch » et « j »: duration /dʒʊˈɹeɪ.ʃən/, percentage /pə(ɹ)ˈsɛntɪd͡ʒ/, converge /kənˈvɜːd͡ʒ/, fluctuation /flʌkt͡ʃuːˈeɪʃən/
  • /r/ anglais — langue recourbée, sans frotter la gorge: hurricane /ˈhʌɹɪkeɪn/, tropical /ˈtɹɑ.pɪ.kəl/, duration /dʒʊˈɹeɪ.ʃən/, percentage /pə(ɹ)ˈsɛntɪd͡ʒ/, atmosphere /ˈætməsˌfɪɹ/

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 hurricane, tropical, cloud.

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 →