쉐도잉 연습: Nuclear Energy Explained: How does it work? 1/3 - YouTube로 영어 말하기 배우기

C2
Have you ever been in an argument about nuclear power?
⏸ 일시 정지
46 문장
문장이 너무 짧거나 길면 Edit를 눌러 조정하세요.
1
Have you ever been in an argument about nuclear power?
2
We have, and we found it frustrating and confusing, so let’s try and get to grips with this topic.
3
[Intro] It all started in the 1940s.
4
After the shock and horror of the war and the use of the atomic bomb, nuclear energy promised to be a peaceful spin-off of the new technology, helping the world get back on its feet.
5
Everyone’s imagination was running wild.
6
Would electricity become free?
7
Could nuclear power help settle the Antarctic?
8
Would there be nuclear-powered cars, planes, or houses?
9
It seemed that this was just a few years of hard work away.
10
One thing was certain: the future was atomic.
11
Just a few years later, there was a sort of atomic age hangover; as it turned out, nuclear power was very complicated and very expensive.
12
Turning physics into engineering was easy on paper, but hard in real life.
13
Also, private companies thought that nuclear power was much too risky as an investment; most of them would much rather stick with gas, coal, and oil.
14
But there were many people who didn’t just want to abandon the promise of the atomic age; an exciting new technology, the prospect of enormously cheap electricity, the prospect of being independent of oil and gas imports, and, in some cases, a secret desire to possess atomic weapons provided a strong motivation to keep going.
15
Nuclear power’s finest hour finally came in the early 1970s, when war in the Middle East caused oil prices to skyrocket worldwide.
16
Now, commercial interest and investment picked up at a dazzling pace.
17
More than half of all the nuclear reactors in the world were built between 1970 and 1985.
18
But which type of reactor to build, given how many different types there were to choose from?
19
A surprising underdog candidate won the day: the light water reactor.
20
It wasn’t very innovative, and it wasn’t too popular with scientists, but it had some decisive advantages: it was there, it worked, and it wasn’t terribly expensive.
21
So, what does a light water reactor do?
22
Well, the basic principle is shockingly simple: it heats up water using an artificial chain reaction.
23
Nuclear fission releases several million times more energy than any chemical reaction could.
24
Really heavy elements on the brink of stability, like uranium-235, get bombarded with neutrons.
25
The neutron is absorbed, but the result is unstable.
26
Most of the time, it immediately splits into fast-moving lighter elements, some additional free neutrons, and energy in the form of radiation.
27
The radiation heats the surrounding water, while the neutrons repeat the process with other atoms, releasing more neutrons and radiation in a closely controlled chain reaction.
28
Very different from the fast, destructive runaway reaction in an atomic bomb.
29
In our light water reactor, a moderator is needed to control the neutrons’ energy.
30
Simple, ordinary water does the job, which is very practical, since water’s used to drive the turbines anyway.
31
The light water reactor became prevalent because it’s simple and cheap.
32
However, it’s neither the safest, most efficient, nor technically elegant nuclear reactor.
33
The renewed nuclear hype lasted barely a decade, though; in 1979, the Three Mile Island nuclear plant in Pennsylvania barely escaped a catastrophe when its core melted.
34
In 1986, the Chernobyl catastrophe directly threatened Central Europe with a radioactive cloud, and in 2011 the drawn-out Fukushima disaster sparked new discussions and concerns.
35
While in the 1980s 218 new nuclear power reactors went live, their number and nuclear’s global share of electricity production has stagnated since the end of the ’80s.
36
So what’s the situation today?
37
Today, nuclear energy meets around 10% of the world’s energy demand.
38
There are about 439 nuclear reactors in 31 countries.
39
About 70 new reactors are under construction in 2015, most of them in countries which are growing quickly.
40
All in all, 116 new reactors are planned worldwide.
41
Most nuclear reactors were built more than 25 years ago with pretty old technology.
42
More than 80% are various types of light water reactor.
43
Today, many countries are faced with a choice: the expensive replacement of the aging reactors, possibly with more efficient, but less tested models, or a move away from nuclear power towards newer or older technology with different cost and environmental impacts.
44
So, should we use nuclear energy?
45
The pro and contra arguments will be presented here next week.
46
Subscribe, and then you won’t miss it!

앱 다운로드

당신이 말하는 모든 문장을 AI가 채점

스캔하여 다운로드
스캔하여 다운로드
Download on theApp Store
Get it onGoogle Play
TRENDING

인기 동영상

이 영상을 통해 말하기 연습을 해야 하는 이유는?

핵 에너지는 현대 사회에서 중요한 주제 중 하나입니다. 이 영상을 통해 핵 에너지가 어떻게 작용하는지를 배우면서, 영어로 이 주제에 대한 자신의 의견을 표현하는 연습을 할 수 있습니다. 유튜브 영어 공부를 통해 복잡한 과학적 개념을 영어로 설명하는 기술을 발전시키고, 이를 통해 영어 회화 연습의 기회 또한 얻을 수 있습니다. 다양한 의견과 정보를 논의할 때 자신감을 갖고 대화할 수 있도록 돕습니다.

문법 및 표현 분석

  • have you ever been in - 과거 경험에 대한 질문을 통해 상대방의 의견을 이끌어낼 수 있습니다. 예: "Have you ever been in an argument about nuclear power?"
  • it seemed that - 상황을 설명할 때 유용한 표현입니다. 예: "It seemed that this was just a few years of hard work away."
  • one thing was certain - 확실한 사실을 강조할 때 사용합니다. 예: "One thing was certain: the future was atomic."
  • given how many different types there were to choose from - 다양한 선택지를 설명할 때 유용한 구문입니다.

이러한 문법 구조를 활용하면 자신의 의견을 보다 논리적으로 전달할 수 있으며, 영어 쉐도잉을 통해 자연스럽게 문장을 구사하는 데 도움이 됩니다.

일반적인 발음의 함정

영상을 통해 듣게 되는 몇 가지 단어는 발음하기 어려울 수 있습니다. 특히 nuclear와 reaction 같은 단어는 한국어 발음과 다르게 발음해야 하므로 주의가 필요합니다. nuclear는 뉴클리어라고 아닌 뉴클리어와 같이 발음해야 합니다. 또한 moderator와 같은 단어의 발음 또한 유의해야 합니다. 이러한 어려운 발음은 영어 발음 교정을 통해 개선할 수 있으며, 영어 회화 연습 시 반복하여 연습하는 것이 중요합니다.

이 영상에서 제공되는 내용을 바탕으로, 다양한 주제를 영어로 효과적으로 표현하고, 원어민처럼 자연스러운 발음으로 연습할 수 있도록 여러분의 영어 실력을 한 단계 높여보세요!

쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법

쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.

☕ 커피 한 잔 사주기