Luyện nói tiếng Anh bằng Shadowing qua video: What is Plate Tectonics: Crash Course Geology #10
Chọn chế độ luyện tập
Mỗi chế độ mở một phòng luyện tập toàn màn hình.
120 câu
Nếu các câu quá ngắn hoặc quá dài, hãy bấm Edit để chỉnh sửa.
1
Almost.
2
All the planets, earthquakes, and volcanic eruptions happen in one place: the Ring of Fire!
3
No, really.
4
That's what it's called.
5
Dope, I know!
6
Nearly the whole Pacific Ocean is bordered by this treacherous region.
7
We're talking the sights of some of the biggest earthquakes ever recorded.
8
Massive volcanoes in Indonesia, Russia, even Antarctica.
9
Huge explosions and fractures that happened on land and underwater.
10
you But why?
11
What makes the Ring of Fire so...
12
fiery.
13
Hi, I'm Sage, and this is Crash Course Geology.
14
The Ring of Fire came about thanks to a billions of years -long process, where all the continents, all the ocean floors,
15
Everything that makes up Earth's outermost layer shifts around, pulling apart, crashing into each other, What's that, Dwayne?
16
Oh yeah, that does sound like one of your family reunions.
17
Let's break down how all that works.
18
Earth has three main layers: crust, mantle, and core.
19
Its rigid outer shell, called the lithosphere, is made up of the crust, and the uppermost part of the mantle.
20
But the lithosphere isn't just one solid piece of Earth.
21
It's broken up into plates: huge slabs of rock that are puzzle pieced together.
22
They're generally composed of both continental lithosphere, which makes up the land we can see, and oceanic lithosphere, which makes up the seafloor.
23
Continental lithosphere is made up of mostly thick, lightweight granite, while oceanic lithosphere is made of denser, heavier rocks like basalt and gabbro.
24
Roughly 95 % of Earth's surface is made up of seven major plates, with the rest covered by much smaller ones.
25
And underneath those plates is the asthenosphere, where intense heat from Earth's core warms up the mantle rock so much that they flow around and bend like taffy.
26
convection currents, or heat -based flow cycles.
27
And those currents power important forces that move Earth's plates and one big geologic slow dance called plate tectonics.
28
Plate tectonics shapes our world, literally.
29
And all the action happens where plates meet: at their edges, called plate boundaries.
30
Like, at divergent boundaries, plates move away from each other.
31
As oceanic plates diverge, the hot mantle rock wells upward and some erupts as lava, which cools and hardens into new oceanic crust.
32
This process is called seafloor spreading, and it's mainly generated by ridge push, downward and pushes away the older crust.
33
When continental plates diverge, the Earth's crust thins and breaks apart, creating features called rift valleys.
34
We can see this happening in East Africa, where the Nubian and Somalian plates started pulling apart about 25 million years ago.
35
Meanwhile, at convergent boundaries, plates move toward each other.
36
When a dense oceanic plate meets a more buoyant continental plate, a process called subduction happens.
37
The denser plate slides underneath the other one, returning that rock to the mantle.
38
This is primarily thanks to slab pole, the gravitational force that yanks plates downward.
39
And this is largely what happens in the Ring of Fire: it's full of subduction zones.
40
As the oceanic plates slide deep underground, they release water into the hot rocks above, which has an explosive result.
41
tons of volcanic activity.
42
And if two dense oceanic plates meet at a convergent boundary, subduction can create huge depressions in the surface, like the Ring of Fire's Mariana Trench,
43
which contains the deepest point in the world.
44
It's on Dwayne's bucket list.
45
Now, when two continental plates converge, watch out!
46
Because instead of subducting, they'll smash into each other, forming massive mountain ranges like the Alps and the Himalayas.
47
When continental plates converge with oceanic ones, the continental plate usually wins, staying on the surface as the denser stuff is forced down.
48
But it's not always a competition.
49
Sometimes, plates move past each other, at spots called transform boundaries.
50
You can think of these plates like pieces of sandpaper.
51
They don't easily slide past each other.
52
Eventually that stress reaches a point where the ground moves with a jolt, aka an earthquake.
53
The San Andreas Fault in California is a transform boundary that has had many earthquakes, like the Loma Prieta earthquake in 1989, which folks in my neck of the woods still talk about.
54
But that kind of ground rattling can happen at all types of plate boundaries when there's enough stress.
55
Plate movements have shaped what the Earth's surface looks like throughout our planet's history.
56
In fact, at multiple times in Earth's past, the shifting tectonic plates have caused all the continents to collide and form one giant supercontinent,
57
the most recent hundred million years ago.
58
It's like seeing Earth in her awkward phase.
59
So yeah, plate tectonics has been happening for a long time,
60
keeping the Earth's surface in constant motion for something like three billion years.
61
The continents move an average of about 1 .5 centimeters a year.
62
That means that, in all of recorded human history, the ground below you has shifted probably about...
63
76 meters.
64
That's only about as wide as a professional soccer field.
65
That creeping movement is way too slow to feel.
66
So, How do we know it's actually happening?
67
Way back in the 1910s, German geologist Alfred Wegener looked at a map of the world and noticed that the continents looked like they fit together, almost like puzzle pieces.
68
And he built a theory to explain what he was seeing: continental drift.
69
He believed that the continents were moving slowly around the Earth, together and apart, drifting through the crust like icebergs in the ocean.
70
He's even credited with coming up with the name Pangaea, meaning "all of the Earth." But the geological community dunked on Wegener pretty hard.
71
that the continents formed and moved vertically, not horizontally, driven by the heating and cooling of Earth's surface way back when it formed.
72
But Wechner was on to something.
73
And his idea laid a foundation that other geologists built on.
74
Let's hang out with some of my geology rock stars!
75
For a long time, we had no clue what the seafloor looked like.
76
Most geologists thought it was just flat.
77
In the 1950s and '60s, American geologist Marie Tharp and her collaborator Bruce Heazen used sonar to map it.
78
Given the culture at the time, Bruce got to gather data aboard research ships, while Marie was forced to stay on land and make maps.
79
'cause she was a lady.
80
With pens, ink, and rulers as her tools, she and her colleague, Hester Herring, methodically plotted each data point.
81
And what the team discovered was incredible.
82
Not a flat, barren wasteland, but a 40 ,000 -mile underwater mountain range that circled the globe like a seam on a baseball.
83
This was a major point in favor of plate tectonics theory.
84
Over the course of several years, Tharp and Hiesen worked with Austrian artist Heinrich Barron to paint an accurate map of the entire seafloor.
85
And in 1977, The World Ocean Floor Panorama was published.
86
Twenty years later, Tharp was named one of the four greatest cartographers of the 20th century by the Library of Congress.
87
In 1999, Tharp said that at the start, "I had a blank canvas to fill with extraordinary possibilities.
88
And she did just that.
89
It took decades and many lines of evidence for the theory of plate tectonics to develop and gain consensus.
90
But the combined efforts of geologists across the world brought us to the conclusion that really does move underneath our feet.
91
And that consensus didn't look like a bunch of geologists saying, "Eh, Sounds about right.
92
Science historian Naomi Oreskes called it:
93
"The first theory to ever be accepted in the entire history of Earth science." Can you imagine that level of harmony?
94
It'd be like if every film critic agreed on the best movie ever made.
95
Dwayne's favorite?
96
Shrek 2.
97
Today, we know that plate tectonics shape the planet we know and love.
98
It's why Europe is warm enough for people to live there, while Antarctica is uninhabitable.
99
Unless you count the penguins.
100
Regardless, Knowing about plate tectonics helps us prepare our communities for disasters like volcanic eruptions, earthquakes, and tsunamis.
101
And it gives us a window into Earth's past.
102
Earth's plates are still moving.
103
Right now!
104
And we're still learning more about them.
105
Like, We don't know exactly what our planet will look like in the distant future.
106
Some predict that 250 million years from now, Earth may be home to another supercontinent, similar to good ol' Pangaea.
107
And we don't know how long plate tectonics will last.
108
One day, when the Earth gets old enough to cool way down inside, plate tectonics will come to a stop.
109
reshaping the world in a big way one last time.
110
That could look like mountains eroding into plateaus, Earth's magnetic field stripping away, and continents sinking into the ocean.
111
But that's potentially billions of years away.
112
Plate tectonics isn't going anywhere anytime soon, and neither is our massive, magnificent planet.
113
Our planet moves us.
114
And not just in the tear -jerking "Wow, Earth really is something" kind of way.
115
The land beneath us is constantly shifting, creating something new every day, albeit very slowly.
116
Go at your own pace, girl.
117
As long as the sea floor keeps spreading and gravity keeps pulling, Earth's plates will be carrying us around, shaping and reshaping the world as we know it.
118
Next time?
119
We'll talk about how plate tectonics builds mountains.
120
See you then!
Tải Ứng Dụng
Mọi thứ bạn cần để nói trôi chảy
Chấm điểm AIChấm từng câu nói
Luyện IPAThành thạo mọi âm
Từ vựngMở rộng vốn từ
Game Từ vựngHọc qua chơi
📺 Cùng kênh
C11
Vectors and 2D Motion: Crash Course Physics #4
Daily ConversationHigh School StudentsUniversity Students
C11
How Water Shapes the Land: Crash Course Geology #9
Daily ConversationUniversity Students
B21
The Bicameral Congress: Crash Course Government and Politics #2
Daily ConversationHigh School StudentsUniversity Students
B21
Crash Course US History Preview
Daily ConversationUniversity Students
C1What's all the Yellen About? Monetary Policy and the Federal Reserve: Crash Course Economics #10
Daily ConversationUniversity Students
C12
The Secret to Business Writing: Crash Course Business - Soft Skills #3
Business EnglishUniversity StudentsWorking Adults
C12
Unit Conversion & Significant Figures: Crash Course Chemistry #2
Daily ConversationHigh School StudentsUniversity Students
B24
How Often do Asteroids Hit the Earth?: Crash Course Geology #20
Daily ConversationHigh School StudentsUniversity Students
C11
What Is Myth? Crash Course World Mythology #1
Daily ConversationUniversity Students
B210
Crash Course Sex Ed Preview
Daily ConversationUniversity StudentsWorking Adults
C12
Derivatives: Crash Course Physics #2
Daily ConversationUniversity Students
C13
Indus Valley Civilization: Crash Course World History #2
Daily ConversationUniversity Students
B22
Ancient Egypt: Crash Course World History #4
Daily ConversationHigh School StudentsUniversity Students
C12
What is Engineering?: Crash Course Engineering #1
Business EnglishUniversity StudentsWorking Adults
B22
The Persians & Greeks: Crash Course World History #5
Cambridge Exam PrepHigh School StudentsUniversity Students
C12
Supervised Learning: Crash Course AI #2
Business EnglishUniversity StudentsWorking Adults
C1Why Are US Politics Today So Divisive?: Crash Course US Government #1
Daily ConversationUniversity Students
C13
The Periodic Table: Crash Course Chemistry #4
IELTS PrepTOEFL PrepCambridge Exam Prep
B22
Where Do Diamonds Come From?: Crash Course Geology #8
IELTS PrepTOEFL PrepCambridge Exam Prep
C13
Where Did Democracy Come From, and Does It Still Work?
IELTS PrepTOEFL PrepUniversity Students
✨ Video gợi ý
C13
100 câu
The Biggest Eruptions That Changed Earth Forever
IELTS PrepTOEFL PrepUniversity Students
C13
74 câu
The Science Behind The Odyssey's Greatest Challenge
American AccentIELTS PrepTOEFL PrepUniversity Students
C19
113 câu
What Happens if the Moon Crashes into Earth?
IELTS PrepTOEFL PrepUniversity Students
C15
108 câu
Earth's Four Spheres - Geosphere, Hydrosphere, Atmosphere and Biosphere
IELTS PrepTOEFL PrepUniversity Students
C12
139 câu
Believers, is this a prophecy unfolding?
IELTS PrepTOEFL PrepUniversity Students
C191
38 câu
Crash Course Scientific Thinking Preview
IELTS PrepTOEFL PrepUniversity Students
C11
64 câu
What Exactly Is Coral?
IELTS PrepTOEFL PrepUniversity Students
B221
7 câu
How To Keep a Skyscraper From Falling Over
American AccentIELTS PrepTOEFL PrepUniversity Students
C11
270 câu
The Most Misunderstood Concept in Physics
IELTS PrepTOEFL PrepUniversity Students
C15
88 câu
The Map of Physics
British AccentIELTS PrepTOEFL PrepUniversity Students
C12
220 câu
Venezuela's "Islands In The Sky", Explained.
IELTS PrepTOEFL PrepUniversity Students
Giới thiệu về bài học này
Bài học này hướng tới việc giúp người học nắm bắt các khái niệm cơ bản về động lực học bản lục địa (plate tectonics) thông qua video "What is Plate Tectonics: Crash Course Geology #10". Người học sẽ thực hành phát âm tiếng Anh chuẩn, hiểu rõ hơn về cách hoạt động của các bản lục địa và ảnh hưởng của chúng đến môi trường xung quanh. Bằng cách lắng nghe và thực hành theo các đoạn hội thoại trong video, bạn có thể cải thiện kỹ năng nói và tăng cường kỹ năng nghe một cách hiệu quả.
Từ vựng và cụm từ quan trọng
- Plate tectonics - Động lực học bản lục địa
- Ring of Fire - Vòng lửa
- Subduction - Quá trình ngập chìm
- Divergent boundaries - Đường biên phân kỳ
- Convergent boundaries - Đường biên hội tụ
- Astenosphere - Astenosphere (hay lớp đất dẻo)
- Seafloor spreading - Sự phân chia đáy đại dương
- Rift valleys - Thung lũng khe nứt
Mẹo thực hành
Để đạt được hiệu quả tốt nhất trong việc shadow speak (nói theo bóng), bạn nên tuân theo những mẹo sau đây:
- Bắt đầu bằng cách lắng nghe từng câu một trong video và cố gắng ghi nhớ cách phát âm và ngữ điệu của người nói.
- Thực hành shadow speech bằng cách bắt chước giọng nói, cách nhấn trọng âm và ngữ điệu của diễn giả. Lặp lại câu, cố gắng theo kịp tốc độ của video.
- Nếu bạn gặp khó khăn với tốc độ nói, hãy sử dụng phần mềm shadowing để điều chỉnh tốc độ cho phù hợp với khả năng của mình. Việc này giúp bạn làm quen hơn với phát âm tiếng Anh chuẩn.
- Cố gắng thực hành thường xuyên và để cho giọng nói của bạn tự nhiên, giống như khi bạn đang nói chuyện với một người bạn.
Hãy nhớ rằng việc cải thiện khả năng nói tiếng Anh yêu cầu thời gian và kiên nhẫn. Bằng việc thực hành đều đặn kỹ thuật shadowing tiếng anh, bạn sẽ thấy sự tiến bộ rõ rệt trong khả năng phát âm và giao tiếp của mình.
Ngữ pháp trong video
Những cấu trúc người nói dùng nhiều nhất, kèm đúng cụm từ trong video:
| Cấu trúc | Trong video |
|---|---|
| Câu bị động be + quá khứ phân từ — nhấn vào việc xảy ra, không phải người làm | is bordered · is made · is called |
| Thì hiện tại hoàn thành have/has + quá khứ phân từ — việc đã xảy ra nhưng còn liên quan đến hiện tại | has had · have shaped · have caused |
| Mệnh đề quan hệ who / which + mệnh đề — thêm thông tin về người hoặc vật | lithosphere, which makes · above, which has |
Phương Pháp Shadowing Là Gì?
Shadowing là kỹ thuật học ngôn ngữ có cơ sở khoa học, ban đầu được phát triển cho chương trình đào tạo phiên dịch viên chuyên nghiệp và được phổ biến rộng rãi bởi nhà đa ngôn ngữ học Dr. Alexander Arguelles. Nguyên lý cốt lõi đơn giản nhưng cực kỳ hiệu quả: bạn nghe tiếng Anh của người bản xứ và lặp lại to ngay lập tức — như một "cái bóng" (shadow) đuổi theo người nói với độ trễ chỉ 1–2 giây. Khác với luyện ngữ pháp hay học từ vựng bị động, Shadowing buộc não bộ và cơ miệng phải đồng thời xử lý và tái tạo ngôn ngữ thực tế. Các nghiên cứu khoa học xác nhận phương pháp này cải thiện đáng kể phát âm, ngữ điệu, nhịp điệu, nối âm, kỹ năng nghe và độ lưu loát khi nói — đặc biệt hiệu quả cho người luyện IELTS Speaking và muốn giao tiếp tiếng Anh tự nhiên như người bản ngữ.