Prática de Shadowing: TOEFL Listening Practice | Lecture | Hurricanes - Aprenda a falar inglês com vídeo

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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.
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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.
50
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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Vocabulário e dicas de fala para esta lição

Esta aula de conversação usa o vídeo “TOEFL Listening Practice”. As palavras que mais se repetem: hurricane, warm, storm, wind, ocean. Este vídeo tem 79 frases e 852 palavras para praticar shadowing. A fala dura 8:26. O falante fala devagar, cerca de 101 palavras por minuto, o que dá tempo para imitar cada som. Apenas 75% das palavras estão entre as 3.000 mais comuns do inglês, por isso o vocabulário é exigente.

Vocabulário principal deste vídeo

15 palavras do vídeo que vale a pena aprender, com pronúncia e significado:

PalavraPronúnciaSignificado
hurricane substantivo/ˈhʌɹɪkeɪn/furacão
tropical adjetivo/ˈtɹɑ.pɪ.kəl/tropical
cloud substantivo/ˈklaʊ̯d/nuvem, nimbo
coastal adjetivo/ˈkoʊstəl/costeiro
dense adjetivo/ˈdɛns/denso
dioxide substantivo/daɪˈɑksaɪd/bióxido
vapor substantivo/ˈveɪpɚ/vapor
suck verbo/sʌk/chupar, sugar
duration substantivo/dʒʊˈɹeɪ.ʃən/duração
percentage substantivo/pə(ɹ)ˈsɛntɪd͡ʒ/percentagem, porcentagem
atmosphere substantivo/ˈætməsˌfɪɹ/atmosfera
arrive verbo/əˈɹaɪv/chegar
spin verbo/spɪn/girar, rodar
annually advérbio/ˈæn.jʊə.li/anualmente
assumption substantivo/əˈsʌm(p).ʃ(ə)n/suposição, pressuposição

Phrasal verbs que você vai ouvir

PalavraSignificado
die out verbodesaparecer

Gramática neste vídeo

As estruturas que o falante mais usa, com as palavras exatas do vídeo:

EstruturaNo vídeo
Voz passiva be + particípio passado — o foco está no que acontece, não em quem fazis forced · is sucked · be given
Present perfect have/has + particípio passado — uma ação passada que ainda importa agorahave theorized · we've seen · have hypothesized

Pronúncia para ficar de olho

  • Os sons de “th”: underneath /ˌʌndɚˈniθ/, thunderstorm /ˈθʌn.dɚˌstɔɹm/, hypothesize /haɪˈpɑ.θəˌsaɪz/, theorize /ˈθɪɹ.aɪz/
  • Os sons de “sh” e “zh”: duration /dʒʊˈɹeɪ.ʃən/, assumption /əˈsʌm(p).ʃ(ə)n/, precipitation /pɹɪˌsɪpɪˈteɪʃn̩/, establish /ɪˈstæb.lɪʃ/, unleash /ʌnˈliʃ/
  • Palavras longas — acerte a sílaba tônica: momentum /ˌmə(ʊ)ˈmɛntəm/, precipitation /pɹɪˌsɪpɪˈteɪʃn̩/, similarly /ˈsɪm.ə.lə.li/, phenomenon /fəˈnɒm.ɪ.nən/, ingredient /ɪnˈɡɹiːdi.ənt/

Sons difíceis para falantes de português:

  • Consoante final — sem acrescentar um “i” depois: cloud /ˈklaʊ̯d/, dioxide /daɪˈɑksaɪd/, suck /sʌk/, attribute /ˈæt.ɹɪˌbjut/, moist /mɔɪst/
  • /l/ final — a língua toca o céu da boca, não vira “u”: tropical /ˈtɹɑ.pɪ.kəl/, coastal /ˈkoʊstəl/, rival /ˈɹaɪvəl/, equatorial /ˌɛkwəˈtɔːɹiəl/, compel /kəmˈpɛl/
  • /h/ — um sopro suave, diferente do “r”: hurricane /ˈhʌɹɪkeɪn/, greenhouse /ˈɡɹːnˌ(h)aʊs/, hypothesize /haɪˈpɑ.θəˌsaɪz/

Como praticar com este vídeo

  1. Ouça o vídeo inteiro uma vez sem falar e anote as palavras que você não conhece.
  2. Faça shadowing frase por frase na velocidade normal, repetindo cada uma até o seu ritmo ficar igual ao do falante.
  3. Grave a sua voz e compare com o original, prestando atenção a palavras como hurricane, tropical, cloud.

O que é a Técnica de Shadowing?

Shadowing é uma técnica de aprendizado de idiomas com base científica, originalmente desenvolvida para o treinamento de intérpretes profissionais. O método é simples, mas poderoso: você ouve áudio em inglês nativo e repete imediatamente em voz alta — como uma sombra seguindo o falante com 1-2 segundos de atraso. Pesquisas mostram melhora significativa na precisão da pronúncia, entonação, ritmo, sons conectados, compreensão auditiva e fluência na fala.

Técnica de shadowing: leia o guia completo passo a passo →