跟读练习: ASL Air Pollution for Kids - 通过视频学习英语口语
正在创建课程...
1
Air is all around us.
2
Humans aren't the only ones that rely on air.
3
Animals, plants, trees, and all living organisms use the air around them to live.
4
Without it, none of us could survive.
5
The air is made up of different gases.
6
One of the gases, oxygen, is what helps us to breathe.
7
But did you know that our air needs to be clean?
8
When your hands and face are dirty, you can easily clean them with soap and water.
9
But when the air becomes dirty, it's not as easy to clean.
10
When there is dirt and other substances in the air that shouldn't be there, it's called air pollution.
11
Air pollution is made up of odors,
12
particles, smoke, fumes, and other substances which can be harmful for all living creatures including us.
13
The substances causing the air to become dirty are called pollutants.
14
Some examples of pollutants include gases with harmful chemicals in them,
15
sand, dust particles, and other materials that evaporate and become pollutants.
16
It is impossible for us to not breathe in these pollutants in the air since they exist all around us.
17
Pollution can travel with the wind from one place to another and spread over many miles.
18
When the air becomes polluted or unclean, it affects the Earth's atmosphere.
19
The atmosphere is like a blanket of air which protects all life.
20
Without the atmosphere, life could not exist.
21
The atmosphere protects living organisms from the heat of the sun during the day, and at night it prevents most of the heat from escaping.
22
Basically, the atmosphere helps keep the living things on earth from becoming too hot or too cold.
23
The pollution in the air affects this blanket
24
and can become harmful to life on earth if it raises the earth's temperature by trapping too much heat inside.
25
Pollution can be caused naturally.
26
Natural pollution may come from volcanoes, forest fires, wind storms, pollen in the air,
27
and other sources in nature.
28
Even the air we breathe out, carbon dioxide, is a form of pollution.
29
And did you know that That gas the cows and other animals release pollutes the air too?
30
Wow!
31
If you have ever gone outside when there's a large fire burning close by, you have probably noticed the darkness in the air, even if it's in the middle of the day.
32
You might notice that your eyes begin to burn and your throat becomes irritated too.
33
Sometimes, there will even be alerts on the news telling us that the air is harmful to breathe that day.
34
That means the pollutants in the air have increased and it's not safe for people to go outside.
35
Or if they have to work outside, they shouldn't stay outside for very long.
36
This is because the pollutants in the air can affect our bodies negatively.
37
Our lungs need clean air to breathe.
38
When they breathe in dirty air, the dirt gets trapped in our lungs making them dirty as well.
39
Red can be very helpful at those times by blowing away the dirty air.
40
Rain and snow can wash the dirt out of the air too.
41
Both of those things can help clean our air.
42
Sometimes air pollution isn't caused by something in nature.
43
Sometimes it's caused by humans.
44
Most cars, buses, trains, and airplanes run on gasoline.
45
People use transportation every day all over the world.
46
That's a lot of gas and oil that's being burned and affecting our air.
47
Other air pollution happens when smoke and fumes from factories,
48
gasoline and power plants release poisonous gases like carbon monoxide into our atmosphere.
49
Another way our air becomes polluted is through chemicals that we use frequently.
50
There are chemicals that are sprayed on things we eat as they're growing.
51
These These chemicals get rid of the bugs crawling on our produce.
52
Some farmers and homeowners use chemicals to help their plants, grass and gardens grow.
53
You might think that we should shut all of those factories down so they'll stop polluting our air.
54
However, factories produce electricity, which gives us light and power that we use every day.
55
And most things we buy from factories, like our clothes, our food, our toys and cars, etc. Now that we know what air pollution is,
56
what are some of the effects of air pollution on our environment?
57
When rain becomes mixed with pollution in the air, we get something called acid rain.
58
Acid rain can cause harm to trees, animals, fish, and other organisms.
59
The pollutants in our air can also make it harder for crops to grow.
60
Air pollution can cause breathing problems in some people.
61
Maybe you have heard of someone who has asthma, or maybe you do.
62
Air pollution can be a big problem for people who already struggle to breathe.
63
It can affect our eyes, nose, and throat by causing headaches or allergic reactions.
64
Most of those effects will go away when the air clears up or even if you go inside.
65
But some effects of air pollution can cause health problems for a long time, like lung cancer and heart disease.
66
Air pollution can sound a little scary.
67
So how do we live in a world where there is air pollution?
68
Maybe while watching this video you have wondered if there was something you could do to help.
69
Well guess what?
70
There is!
71
Here is a list of things we can all do to help lessen the amount of pollution
72
that is released into our air.
73
We can reduce or lessen air pollution by using less electricity, like turning off the lights when you leave a room or unplugging devices that aren't in use.
74
Recycling and reusing what we already have lessens waste and slows the production of new items.
75
Reduce fireplace use.
76
Car pull to work or school.
77
Ride a bike or walk to a friend's house.
78
Don't keep a car running while you're waiting for someone or something.
79
Turn it off!
80
And don't smoke!
81
Plant a tree!
82
All of us want clean air, but we all have to do our part to have it.
83
Hope you had fun learning with us!
84
Visit us at LearnBrite.org for thousands of free resources and turnkey solutions for teachers and homeschoolers.
为什么通过这个视频进行口语练习？
在学习英语的过程中，口语表达能力至关重要，而这个关于空气污染的教育视频提供了一个极好的学习机会。通过观看并跟读视频里的内容，学习者不仅能够掌握有关空气质量的重要信息，还能提升自己的英语口语技能。通过模仿演讲者的语调和节奏，学习者可以提高他们的发音和流利度。而且，这种方法被称为英语影子跟读(shadowspeak)，可以帮助你在自然语境中巩固语言知识。通过重复和跟读，参与者能够在真实对话中更自信地表达自己，这在雅思口语练习中尤其重要。
语法与表达的语境分析
视频中使用了几种关键语法结构和表达方式，可以作为学习的重点：
- 使用“without”的否定句：“Without it, none of us could survive.”（没有它，我们都无法生存。）此句强调了空气的重要性，使用“without”可以有效地表达出条件与结果的关系。
- 描述进行时：“When the air becomes polluted or unclean...”（当空气受到污染或不洁时...）这种句型用于描述持续进行的动作，非常适合用来表述变化过程。
- 条件句使用：“If they have to work outside, they shouldn't stay outside for very long.”（如果他们必须在外工作，他们不应该待太久。）这种句式可以帮助学习者理解条件与结果的关系。
常见发音陷阱
在视频中，有几个单词和短语可能会让英语学习者感到困惑：
- “pollution”：这个单词在发音时，很多学生容易把重音放错，正确的发音是“pəˈluːʃən”。
- “atmosphere”：注意在发音时要拉长“s”音，发音为“ˈætməsˌfɪr”。
- “gases”：外加一个“z”的结尾声，切忌以“s”音结尾。
通过在看YouTube学英语的过程中积极练习这些发音，学习者能够有效地改善自己的口音，使其更接近母语者的表达。在雅思口语练习中，清晰的发音是高分的关键之一。适当的模仿和重复将有助于掌握这些发音，更好地进行交流。
什么是跟读法？
跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。