Prática de Shadowing: Venezuela's "Islands In The Sky", Explained. - Aprenda a falar inglês com o YouTube
C1
This is Angel Falls, and it is the tallest waterfall on Earth.
220 frases
Se as frases estiverem muito curtas ou longas, clique em Edit para ajustá-las.
1
This is Angel Falls, and it is the tallest waterfall on Earth.
2
It drops a staggering 979 meters in a single uninterrupted plunge off the edge of a mountain in southern Venezuela.
3
The waterfall so far that much of it turns into a mist even before it reaches the ground.
4
But none of this is probably news to you,
5
because most people have heard of Angel Falls.
6
But most people don't know what mountain it falls from,
7
or why that mountain exists,
8
or what's on top of it,
9
or what the people who have inhabited this landscape for thousands of years believe about it.
10
Today that is about to change.
11
This mountain, or rather plateau,
12
is called the Ayan Tepui.
13
It is one of roughly 115 formations scattered across the Guiana highlands of Venezuela, Guyana, and Brazil.
14
And in my opinion, this is one of the most fascinating parts of the planet.
15
These formations are known as the Tipui.
16
They are flat-top mountains rising up to a thousand meters above the landscape.
17
And each one of these almost acts like an island in the sky.
18
Each one carrying on its summit an ecosystem that has been isolated for a long time.
19
And all of this makes this region,
20
the Guyana Highlands, one of the great geographical stories on the planet.
21
But what are the Tupui and how were they formed?
22
Well, the Tupui are the remnants of what you all just called the Guiana Shield,
23
one of the oldest exposed rock formations on the surface of this planet.
24
The ancient layers of rock
25
that makes up the Tupui plateaus was laid down as sediment
26
on the floor of an ancient sea roughly 1.7 billion years ago ago.
27
To put that into perspective,
28
it is estimated that complex animal life didn't begin until 530 million years ago.
29
The rock on the Te Pui was already ancient before the first fish appeared in the ocean.
30
And for the vast majority of that time,
31
these formations were not mountains at all,
32
they were part of a vast flat plateau.
33
So what happened between that time to the present day?
34
How did the Tipui go from one massive plateau to hundreds of individual plateaus?
35
What happened was differential erosion.
36
Keep in mind that the rock of the Tipui is extraordinarily hard,
37
primarily made up of quartzite.
38
The softer rock around it eroded away.
39
Rivers, rainfall, and time wore down everything that was less resistant.
40
And slowly, over an almost incomprehensible span of time,
41
the plateau was dismembered, away on all sides,
42
leaving behind the most resistant sections as isolated,
43
flat-topped mountains rising above the eroded lowlands.
44
So the Tapui you see here are what's left.
45
They are not mountains that were built up,
46
they are a plateau that was carved away.
47
They are just what remained.
48
And as the lowlands eroded away from them, the summits became isolated.
49
Not immediately, but slowly.
50
The cliff faces of the tallest Tipui are sheer vertical rock walls hundreds of meters tall.
51
They're smooth and overhanging in places,
52
offering almost no route for organisms to travel between the summit and the jungle below.
53
The summits became, in biological terms, islands.
54
And on islands, whether surrounded by water or air in this case,
55
evolution does its most creative work.
56
Now the summits of the Tipui have been isolated for millions of years,
57
long enough for evolution to produce species found nowhere else on Earth.
58
The Te Pui region has one of the highest rates of plant endemism anywhere in the world,
59
meaning a remarkably high proportion of its species exist on these summits and nowhere else.
60
Some individual Te Pui have endemic species found on that single formation and no other.
61
Now an important distinction we need to make is
62
that the soils on the Te Pui summits are among the most nutrient-poor on the planet.
63
The ancient rock weathers into sand that retains almost no minerals.
64
Water pools in shallow depressions,
65
which are acidic and dark.
66
Normal tropical vegetation cannot survive here.
67
What has evolved instead is a suite of highly specialized plants.
68
Most are slow growing and compact,
69
many of which have actually developed to be carnivorous due to nutrient scarcity.
70
Sundews, pitcher plants, and bladder warts.
71
These are organisms that catch and digest insects to obtain the nitrogen and phosphorus that soil cannot provide here.
72
If you are ever so lucky to walk across the Tipui summit,
73
which by the way is definitely on my bucket list,
74
you might think you're walking on another planet.
75
The vegetation is low and strange.
76
The rock is black with cyanobacteria and stained rust red with iron.
77
There's pools of dark water that sit in shallow depressions.
78
The clouds move here through eye level,
79
reducing visibility to mere meters.
80
And as these clouds part,
81
they reveal a view of hundreds of kilometers of jungle spread below like a green ocean.
82
It truly is one of the most beautiful landscapes on Earth.
83
Now this region is concentrated in what's known as the Guyana Highlands,
84
and this is one of the most sparsely populated and isolated regions in South America.
85
The infrastructure here is minimal at best,
86
and the terrain, well, of course, it's formidable.
87
Venezuela contains the greatest concentration and the most dramatic individual tepuy.
88
The state of Bolívar in southern Venezuela is home to the Canaima National Park,
89
a UNESCO World Heritage Site covering nearly 30,000 square kilometers.
90
Within Canaima sit some of the most famous tepuy,
91
Ollantepuy, from which Angel Falls descends,
92
Mount Roraima, the highest and arguably the most iconic,
93
in the cluster formation of the Grand Savanna,
94
where dozens of Te Pui rise from a high altitude grassland that itself sits above 1000 meters.
95
It really feels like a magical landscape,
96
and a place that inspired many stories such as Sir Arthur Conan Doyle's 1912 classic novel,
97
The Lost World.
98
But of all the Tepui,
99
Mount Roraima is the one that most fired western imagination.
100
It sits at the tri-point of where Venezuela, Guyana, and Brazil meet.
101
It rises approximately 2,810 meters above sea level,
102
with cliff faces on each side dropping 400 meters.
103
Mount Roraima is perhaps the Tepui most closely associated with Conan Doyle's The Lost World,
104
the story of a plateau in South America where prehistoric creatures had survived,
105
isolated evolutionary changes by their cliffs.
106
Conan Doyle had never visited Roraima,
107
but he had read accounts of the first European ascents in 1884.
108
Their descriptions of the summit,
109
the bizarre plants and strange rock formations,
110
the sense of absolute separation from the world below,
111
were enough to inspire the author.
112
The novel was fiction, but the biological realities of life on Roraima's summit might be just as strange,
113
Because the summit holds species found nowhere else on earth,
114
including the strange Rorima bush toad.
115
A small, dark amphibian that has lived on this summit for so long,
116
isolated from its nearest relatives below,
117
that it has become its own distinct species.
118
And interestingly, it's evolved a unique defense mechanism.
119
When threatened by predators, the toad curls into a ball and rolls away.
120
Then there is the Ooyan Te Pui.
121
The name literally means Devil Mountain in the Paman language.
122
It is one of the largest Tepui,
123
covering roughly 700 square kilometers on the summit plateau.
124
It is deeply dissected by canyons and gorges,
125
and it receives some of the highest rainfall of any Tepui.
126
Angel Falls drops from a notch on the northern rim of the Aoyan Tepui into the Churung River gorge below.
127
The full height of the fall is 979 meters,
128
of which the uninterrupted initial drop is 807 meters.
129
For comparison, the Eiffel Tower is only 330 meters tall.
130
The Empire State is 443 meters.
131
Angel Falls drops more than twice the height of the Empire State Building.
132
But why is it called Angel Falls?
133
It's actually named after an American pilot called Jimmy Angel.
134
He was the first westerner to document Angel Falls.
135
His flights in the region actually helped explore,
136
map, and evaluate the Tipuis and the Grand Sabana region.
137
Biologically, the Tipuis can be best described as the Galapagos of the sky.
138
The Galapagos Islands are famous for producing distinct species through isolation.
139
The Tipuis have also been doing the same thing.
140
But here, the isolation is not oceanic, but altitude.
141
The cliffs replace the sea,
142
but the evolutionary mechanism is pretty much the same.
143
The region of the Guiana Highlands is extremely biodiverse,
144
and much of that diversity is concentrated in its endemism.
145
According to recent studies of the Te Pui,
146
it is believed that this region harbors nearly 1300 endemic species of plants alone.
147
But have humans ever lived in this strange and unique environment?
148
The short answer is yes.
149
The Pomon people, an indigenous group of perhaps 30,000 to 40,000 people living across the Grande Sabana and adjacent areas of Venezuela,
150
Guyana, and Brazil, have lived in the shadow of the Tepui for at least several thousand years,
151
and possibly much longer.
152
Their language, their cosmology, their entire understanding of the world is structured around the mountains that dominate their landscape.
153
For them, the Tepui are holy places,
154
sacred guardians of the savannah.
155
According to their beliefs, the Tipui are home to the Mawari,
156
ancient ancestral spirits that are sometimes considered dangerous.
157
Now the summits of most Tipui were not regularly visited by the Pumon.
158
The difficulty of the ascent and the spiritual weight of those mountains combined to make them places of respect rather than habitation.
159
The first ascent of a Tipui was the 1884 expedition by British explorer Im Third.
160
But even before all of that,
161
European awareness of the Tipui region dates back to the late 16th century,
162
when Walter Raleigh led an expedition up the Orinoco River in search of the famous El Dorado,
163
that mythical city of gold that European explorers believed lay somewhere in the interior of South America.
164
Raleigh's 1595 account, the discovery of the large,
165
rich, and beautiful empire of Guyana,
166
described flat-topped mountains in the interior with a vividness that suggested he or his sources had seen them.
167
But El Dorado was never found,
168
at least not in the form the Europeans imagined,
169
but the search for it drove European penetration of the Guiana Highlands for nearly two centuries,
170
and it brought the Tepui into Western consciousness,
171
however distorted, long before any scientist actually set foot on a summit.
172
From that moment, the Tepui became objects of fascination,
173
expedition, and scientific inquiry that has continued with varying intensity ever since.
174
But in a way there is still so much to learn about the Teppui because of the 115 Teppui formations identified,
175
many of which have still not been studied in a systematic way.
176
Many have never even been visited by biologists at all.
177
Each new expedition to a previously unstudied summit returns with new species to science,
178
whether that be plants, insects, or amphibians.
179
In an era where it feels as though the entire surface of the earth has been catalogued,
180
the Te Pui represent a genuine frontier for exploration.
181
Now there is another piece of the puzzle that I haven't mentioned yet,
182
and that is the cave systems within the Te Pui.
183
Now this is another major frontier in terms of exploration,
184
because erosion has carved extensive cave networks into the sandstone.
185
Some of the largest quartzite caves in the world are found here,
186
including the the famous Cueva del Fantasma,
187
a huge cave that's only recently been found.
188
The name stands for Cave of the Ghost in Spanish,
189
and it's so vast that almost two helicopters can comfortably fly in and land.
190
There's actually already been new species of poison dart frogs found in this cave.
191
What else can be found in these caves?
192
Are there other species of amphibians?
193
And what microorganisms inhabit this perpetual darkness?
194
So we started this video by talking about Angel Falls,
195
the tallest waterfall in the world.
196
The kind that appears on Instagram posts,
197
on screensavers and travel posters.
198
But behind that waterfall is a billion year old geological history.
199
It's located on a mountain and an ecosystem that has been evolving in isolation for a long time.
200
And around the mountain are people who have known it,
201
named it and built their understanding of the world around it for thousands of years.
202
And even inside the mountain are caves that have never been explored.
203
The Te Pui of this region really are one of the most fascinating geological and geographical stories on the planet.
204
Over the years, biologists have studied this ecosystem,
205
but there is a lot we still don't know,
206
and we are still learning,
207
still finding new species every time we visit.
208
Hence proving that despite modern day science,
209
there is still so much we do not know about this beautiful planet.
210
And as always, if you like content like this and you like learning more about the planet and its cities,
211
its landscapes, and its countries,
212
don't forget to hit that subscribe button.
213
There's a lot more awesome content on the way, so stay tuned.
214
And if there's any specific topic,
215
a place, a city, a region,
216
a country, a landform that you want me to cover on this channel,
217
let me know in the comments below.
218
I genuinely love reading the comments and the ideas that people have.
219
And as always, I will catch you in the next one.
220
Peace.
Baixar aplicativo
Pontuação por IA para cada frase que você fala
TRENDING
Populares
Por que praticar a conversação com este vídeo?
Praticar a fala em inglês por meio de vídeos, como "As Ilhas no Céu da Venezuela", é uma ótima maneira de aprimorar suas habilidades de conversação. Este vídeo não apenas apresenta um conteúdo fascinante sobre a geografia e a cultura da Venezuela, mas também oferece um contexto rico para aperfeiçoar sua pronúncia e fluência. Ao se envolver com o material, você pode usar a técnica de shadow speech, onde você repete o que ouve, imitando o falante. Isso ajuda a desenvolver confiança em sua habilidade de falar inglês e a melhorar sua entonação e ritmo. O método de shadowing em inglês é especialmente eficaz, pois permite que você absorva a linguagem enquanto se familiariza com a pronúncia correta e as estruturas da frase.
Gramática e expressões em contexto
No vídeo, o apresentador utiliza diversas estruturas gramaticais e expressões que são importantes para os alunos de inglês. Aqui estão algumas delas:
- Usos do passado simples: O narrador menciona a formação das montanhas, usando expressões como "foi formado por" e "antes de aparecer", que são significativas para descrever eventos históricos.
- Sentenças complexas: Estruturas como "o que aconteceu entre esse tempo até hoje" demonstram o uso de perguntas indiretas, que são sempre úteis em conversas.
- Vocabulário descritivo: Termos como "ecossistema isolado" e "erosão diferencial" não só trazem vocabulário específico da geografia, mas também ajudam a expandir o léxico dos alunos. Incorporar essas expressões em seu próprio discurso fortalece a compreensão e a articulação.
Traps comuns de pronúncia
Ao assistir ao vídeo, você encontrará algumas palavras e expressões que podem ser desafiadoras. Aqui estão alguns pontos a serem destacados:
- "Ayan Tepui": A pronúncia correta do nome da montanha pode ser complicada. Preste atenção à acentuação e à entonação. Praticar a repetição pode ajudar.
- "Tepui": A palavra é pronunciada de forma diferente do que alguns alunos podem esperar. O shadowspeak (sombra da fala) é útil aqui, pois permite que você ouça e repita até se sentir confortável.
- Mantenha o foco na entonação: O apresentador usa variações na entonação que transmitem emoção e interesse. Tente imitar essas variações ao praticar para melhorar sua própria expressividade.
Utilizando estas técnicas e estratégias, como o shadowing site e o shadow speak, você pode não apenas aprender sobre o conteúdo do vídeo, mas também desenvolver suas habilidades de fala em inglês de maneira eficaz e envolvente!
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.
☕ Pague-nos um café
O ShadowingEnglish permanece 100% gratuito graças ao seu apoio. Os custos de servidor e IA são altos — seu café nos mantém ativos! 🙏