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

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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.
27
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
32
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.
35
Similarly, some experts have hypothesized that the violent storms we are seeing can actually be attributed to natural fluctuations in ocean currents.
36
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.
45
Number four.
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What happened globally between 1970 and 2005?
47
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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Aanbevolen Video

Woordenschat en spreektips bij deze les

Deze spreekles is gebaseerd op de video “TOEFL Listening Practice”. Deze woorden komen het vaakst terug: hurricane, warm, storm, wind, ocean. Deze video bevat 79 zinnen en 852 woorden om na te spreken. Het gesproken deel duurt 8:26. De spreker praat langzaam, ongeveer 101 woorden per minuut, zodat je tijd hebt om elke klank na te doen. Slechts 75% van de woorden hoort bij de 3.000 meest gebruikte Engelse woorden, dus de woordenschat is pittig.

Belangrijke woorden in deze video

15 woorden uit de video die het leren waard zijn, met uitspraak en betekenis:

WoordUitspraakBetekenis
hurricane zelfstandig naamwoord/ˈhʌɹɪkeɪn/orkaan
cloud zelfstandig naamwoord/ˈklaʊ̯d/wolk
dense bijvoeglijk naamwoord/ˈdɛns/dicht
dioxide zelfstandig naamwoord/daɪˈɑksaɪd/dioxide
vapor zelfstandig naamwoord/ˈveɪpɚ/damp
suck werkwoord/sʌk/zuigen
duration zelfstandig naamwoord/dʒʊˈɹeɪ.ʃən/tijdsduur, duur
percentage zelfstandig naamwoord/pə(ɹ)ˈsɛntɪd͡ʒ/percentage
atmosphere zelfstandig naamwoord/ˈætməsˌfɪɹ/atmosfeer, dampkring
arrive werkwoord/əˈɹaɪv/aankomen, arriveren
spin werkwoord/spɪn/draaien
annually bijwoord/ˈæn.jʊə.li/jaarlijks
assumption zelfstandig naamwoord/əˈsʌm(p).ʃ(ə)n/op zich nemen
momentum zelfstandig naamwoord/ˌmə(ʊ)ˈmɛntəm/impuls
cluster zelfstandig naamwoord/ˈklʌstɚ/tros

Phrasal verbs die je zult horen

WoordBetekenis
set off werkwoordvertrekken

Grammatica in deze video

De structuren die de spreker het meest gebruikt, met de exacte woorden uit de video:

StructuurIn de video
Lijdende vorm be + voltooid deelwoord — het gaat om wat er gebeurt, niet om wie het doetis forced · is sucked · be given
Present perfect have/has + voltooid deelwoord — iets uit het verleden dat nu nog telthave theorized · we've seen · have hypothesized

Uitspraak om op te letten

  • De “th”-klanken: underneath /ˌʌndɚˈniθ/, thunderstorm /ˈθʌn.dɚˌstɔɹm/, hypothesize /haɪˈpɑ.θəˌsaɪz/, theorize /ˈθɪɹ.aɪz/
  • De klanken “sh” en “zh”: duration /dʒʊˈɹeɪ.ʃən/, assumption /əˈsʌm(p).ʃ(ə)n/, precipitation /pɹɪˌsɪpɪˈteɪʃn̩/, establish /ɪˈstæb.lɪʃ/, unleash /ʌnˈliʃ/
  • Lange woorden — let op de klemtoon: momentum /ˌmə(ʊ)ˈmɛntəm/, precipitation /pɹɪˌsɪpɪˈteɪʃn̩/, similarly /ˈsɪm.ə.lə.li/, phenomenon /fəˈnɒm.ɪ.nən/, ingredient /ɪnˈɡɹiːdi.ənt/

Klanken die Nederlandstaligen lastig vinden:

  • Stemhebbende eindmedeklinker — /b/, /d/, /g/, /z/, /v/ niet verscherpen: cloud /ˈklaʊ̯d/, dioxide /daɪˈɑksaɪd/, percentage /pə(ɹ)ˈsɛntɪd͡ʒ/, arrive /əˈɹaɪv/, upwards /ˈʌpwɚdz/
  • /æ/ — opener dan de Nederlandse “e”: atmosphere /ˈætməsˌfɪɹ/, annually /ˈæn.jʊə.li/, attribute /ˈæt.ɹɪˌbjut/, establish /ɪˈstæb.lɪʃ/
  • /g/ — een harde plofklank, geen Nederlandse “g”: globally /ˈɡloʊbəli/, greenhouse /ˈɡɹːnˌ(h)aʊs/, ingredient /ɪnˈɡɹiːdi.ənt/

Zo oefen je met deze video

  1. Luister de hele video één keer zonder te spreken en noteer de woorden die je niet kent.
  2. Spreek zin voor zin na op normale snelheid en herhaal elke zin tot je ritme gelijk is aan dat van de spreker.
  3. Neem jezelf op en vergelijk met het origineel; let daarbij op woorden als hurricane, cloud, dense.

Wat is de Shadowing-techniek?

Shadowing is een wetenschappelijk onderbouwde taalleermethode die oorspronkelijk is ontwikkeld voor professionele tolkentraining en gepopulariseerd door polyglot Dr. Alexander Arguelles. De methode is eenvoudig maar krachtig: je luistert naar native Engelse audio en herhaalt het onmiddellijk hardop — als een schaduw die de spreker volgt met slechts 1–2 seconden vertraging. In tegenstelling tot passief luisteren of grammaticadrills, dwingt shadowing je hersenen en mondspieren om echte spraakpatronen tegelijkertijd te verwerken en te reproduceren. Onderzoek toont aan dat het de uitspraaknauwkeurigheid, intonatie, ritme, verbonden spraak, luisterbegrip en spreekvaardigheid aanzienlijk verbetert — waardoor het een van de meest effectieve methoden is voor IELTS Speaking-voorbereiding en echte Engelse communicatie.

Shadowing-techniek: lees de volledige stap-voor-stap-gids →