Shadowing Practice: TOEFL Listening Practice | Lecture | Hurricanes - Learn English Speaking with Video

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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.
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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?
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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.
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When is a hurricane at its most powerful?
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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
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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.
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What happened globally between 1970 and 2005?
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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.
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Number 5.
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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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Vocabulario y notas de pronunciación para esta lección

Esta lección de conversación se basa en el vídeo “TOEFL Listening Practice”. Las palabras que más se repiten: hurricane, warm, storm, wind, ocean. Este vídeo tiene 79 frases y 852 palabras para practicar shadowing. La parte hablada dura 8:26. El hablante habla despacio, unas 101 palabras por minuto, así que hay tiempo para imitar cada sonido. Solo el 75 % de las palabras está entre las 3.000 más comunes del inglés, por lo que el vocabulario es exigente.

Vocabulario clave de este vídeo

15 palabras del vídeo que vale la pena aprender, con su pronunciación y significado:

PalabraPronunciaciónSignificado
hurricane sustantivo/ˈhʌɹɪkeɪn/huracán
tropical adjetivo/ˈtɹɑ.pɪ.kəl/tropical
cloud sustantivo/ˈklaʊ̯d/nube, nimbo
coastal adjetivo/ˈkoʊstəl/costero, costanero
dense adjetivo/ˈdɛns/denso
dioxide sustantivo/daɪˈɑksaɪd/dióxido
vapor sustantivo/ˈveɪpɚ/vapor
suck verbo/sʌk/chupar, sorber
duration sustantivo/dʒʊˈɹeɪ.ʃən/duración
percentage sustantivo/pə(ɹ)ˈsɛntɪd͡ʒ/porcentaje
atmosphere sustantivo/ˈætməsˌfɪɹ/atmósfera, aire
arrive verbo/əˈɹaɪv/llegar, arribar
spin verbo/spɪn/girar, rotar
annually adverbio/ˈæn.jʊə.li/anualmente
assumption sustantivo/əˈsʌm(p).ʃ(ə)n/asunción

Phrasal verbs que vas a escuchar

PalabraSignificado
die out verboextinguirse
set off verbopartir

Gramática en este vídeo

Las estructuras que más usa el hablante, con las palabras exactas del vídeo:

EstructuraEn el vídeo
Voz pasiva be + participio pasado — importa lo que ocurre, no quién lo haceis forced · is sucked · be given
Present perfect have/has + participio pasado — una acción pasada que sigue importando ahorahave theorized · we've seen · have hypothesized

Pronunciación a tener en cuenta

  • Los sonidos de “th”: underneath /ˌʌndɚˈniθ/, thunderstorm /ˈθʌn.dɚˌstɔɹm/, hypothesize /haɪˈpɑ.θəˌsaɪz/, theorize /ˈθɪɹ.aɪz/
  • Los sonidos de “sh” y “zh”: duration /dʒʊˈɹeɪ.ʃən/, assumption /əˈsʌm(p).ʃ(ə)n/, precipitation /pɹɪˌsɪpɪˈteɪʃn̩/, establish /ɪˈstæb.lɪʃ/, unleash /ʌnˈliʃ/
  • Palabras largas — cuida el acento: momentum /ˌmə(ʊ)ˈmɛntəm/, precipitation /pɹɪˌsɪpɪˈteɪʃn̩/, similarly /ˈsɪm.ə.lə.li/, phenomenon /fəˈnɒm.ɪ.nən/, ingredient /ɪnˈɡɹiːdi.ənt/

Sonidos difíciles para hispanohablantes:

  • /v/ — no es /b/: los dientes tocan el labio inferior: vapor /ˈveɪpɚ/, arrive /əˈɹaɪv/, violent /ˈvaɪ.ə.lənt/, rival /ˈɹaɪvəl/, devastate /ˈdɛv.ə.steɪt/
  • /z/ — sonora, no /s/: upwards /ˈʌpwɚdz/, prerequisite /pɹiˈɹɛkwəzət/, hypothesize /haɪˈpɑ.θəˌsaɪz/, theorize /ˈθɪɹ.aɪz/
  • /dʒ/ — no es la “y” ni la “ch”: duration /dʒʊˈɹeɪ.ʃən/, percentage /pə(ɹ)ˈsɛntɪd͡ʒ/, converge /kənˈvɜːd͡ʒ/

Cómo practicar con este vídeo

  1. Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
  2. Haz shadowing frase por frase a velocidad normal, repitiendo cada una hasta que tu ritmo coincida con el del hablante.
  3. Grábate y compara con el original, prestando atención a palabras como hurricane, tropical, cloud.

¿Qué es la Técnica de Shadowing?

Shadowing es una técnica de aprendizaje de idiomas respaldada por la ciencia, desarrollada originalmente para la formación de intérpretes profesionales y popularizada por el políglota Dr. Alexander Arguelles. El método es simple pero poderoso: escuchas audio en inglés nativo y lo repites en voz alta de inmediato, como una sombra que sigue al hablante con solo 1-2 segundos de retraso. A diferencia de la escucha pasiva o los ejercicios de gramática, el shadowing obliga a tu cerebro y músculos de la boca a procesar y reproducir simultáneamente patrones de habla reales. Las investigaciones muestran que mejora significativamente la precisión de la pronunciación, la entonación, el ritmo, el habla conectada, la comprensión auditiva y la fluidez al hablar, convirtiéndola en una de las metodologías más efectivas para la preparación del IELTS Speaking y la comunicación en inglés en el mundo real.

Técnica de shadowing: lee la guía completa paso a paso →