L3-U2-P4-1 Listening : Overview of Earth
Overview of Earth
Earth is where we all live. It is our home in the solar system.
There is no other place for us to live. Earth isn’t just any planet.
It’s a very special place. It’s special because we depend on it for many things.
Because of its importance, we need to take care of it.
Why is Earth so special? - It’s special because we depend on it for many things.
It’s special because we depend on it for many things.
We depend on the Earth for its air, its water and many of its natural resources.
Natural resources, such as coal and oil, give us energy.
Other natural resources we depend on include forests and soil.
Forests provide clean air and wood for building houses.
Soil is needed to grow plants and keep them healthy.
We need to take care of these resources and not waste them.
What are examples of natural resources? - Coal and oil are examples of natural resources.
Why we need forests? - Forests provide clean air and wood for building houses.
Forests provide clean air and wood for building houses.
Other natural resources we depend on include forests and soil.
The Earth is a large, rotating sphere, about 4.5 billion years old.
The equator which divides the Earth into two hemispheres, is about 40,000 kilometers long.
The Earth's diameter is 12,756 kilometers.
Its radius is half that, or 6,378 kilometers.
The radius is the distance from the Earth’s center to its surface.
Most of the Earth’s surface is covered by water.
The rest of the Earth’s surface is land.
What divides the Earth into two hemispheres? - The equator divides the Earth into two hemispheres.
What covers most of the Earth’s surface? - Most of the Earth’s surface is covered by water.
Most of the Earth’s surface is covered by water.
Most of the Earth’s surface is covered by water.
Natural resources, such as coal and oil, give us energy.
We depend on the Earth for its air, its water and many of its natural resources.
The Earth is a large, rotating sphere, about 4.5 billion years old.
Soil is needed to grow plants and keep them healthy.
Just above the Earth's surface is the atmosphere.
The atmosphere is a layer of gases about 500 kilometers thick.
These gases include Oxygen, Nitrogen and Carbon Dioxide.
This mixture of gases is the air that we breathe.
As we move above the Earth’s surface, the air gets thinner.
At high altitudes, the air is too thin to breathe.
At the edge of the atmosphere is space.
There is no air at all in space.
What is just above the Earth's surface? - Just above the Earth's surface is the atmosphere.
About how thick is the atmosphere? - It's a layer of gases about 500 kilometers thick.
At high altitudes, the air is too thin to breathe.
Just above the Earth's surface is the atmosphere.
As we move above the Earth’s surface, the air gets thinner.
L3-U2-P4-2 Listening : Water On Earth
Water On Earth
Most of the Earth’s water is in the oceans.
The two largest oceans are the Pacific and Atlantic Oceans.
Unfortunately, we can’t drink ocean water.
This is because ocean water has too much salt.
Fortunately, there is also water in lakes and rivers.
This water isn’t salty, so we can drink it.
Only about 2% of the world’s water is fresh water.
Without fresh drinking water, we can’t live.
A person can’t live for more than a few days without water.
Why can't we drink ocean water? - We can't drink ocean water because it has too much salt.
How is fresh water different from ocean water? - Fresh water isn’t salty.
We can't drink ocean water because it has too much salt.
Most of the Earth’s water is in the oceans.
A person can’t live for more than a few days without water.
Rivers are important.
Most rivers begin in mountains and end in the oceans.
The water flows from high ground to low ground.
At first, rivers are small and are called creeks or streams.
As water enters from other streams, a river grows.
In which direction does water flow? - The water flows from high ground to low ground.
As water enters from other streams, a river grows.
Some rivers become very large and long.
The longest river in the world is the Nile River, in Africa.
It’s almost 6,500 kilometers long.
As for water volume, the Amazon is the largest river.
The volume of water flowing through it per second is more than in any other river.
What is the world's longest river? - The longest river in the world is the Nile River, in Africa.
As for water volume, the Amazon is the largest river.
Another use of rivers is for energy.
The energy of falling water is used to produce electricity.
This use of water supplies over 20% of the world’s electricity.
Rivers are also important for agriculture.
Without water, farmers cannot grow food.
And of course rivers can be used for transportation.
River boats are used to carry things to inland cities or lakes.
What is another use of rivers? - Rivers are used to produce electricity.
This use of water supplies over 20% of the world’s electricity.
Without water, farmers cannot grow food.
Most rivers begin in mountains and end in the oceans.
River boats are used to carry things to inland cities or lakes.
The water from rivers is used to grow food.
L3-U2-P4-3 Vocabulary : Things We Enjoy Doing
Things We Enjoy Doing
This man goes running 5 days a week if the weather is good. On the weekends he runs 10 kilometers unless the weather is bad.
This woman really enjoys reading, especially works of fiction. She has read hundreds of books.
This young couple enjoys watching old movies such as Titanic. They both cried when it sank and many people went down with the ship.
These young boys enjoy playing sports on the weekend. Sometimes they play basketball and sometimes they play football.
This young man eats too many sweets, so he is overweight. He needs to eat fewer sweets and exercise more.
Who enjoys watching old movies such as Titanic? - This young couple enjoys watching old movies such as Titanic.
Who is overweight because he eats too many sweets? - This young man eats too many sweets, so he is overweight.
Who has read many books? - This woman has read hundreds of books.
Who goes running several times a week? - This man goes running 5 days a week if the weather is good.
He needs to eat fewer sweets and exercise more.
They both cried when it sank and many people went down with the ship.
This young man eats too many sweets, so he is overweight.
He needs to eat fewer sweets and exercise more.
Sometimes they play basketball and sometimes they play football.
On the weekends he runs 10 kilometers unless the weather is bad.
L3-U2-P4-4 Vocabulary : Continents
Continents
Here are 6 of the Earth's 7 continents:
Asia is the largest continent both in land and in population. Asia covers 30% of the Earth's land area.
Africa is the second largest continent. Of all the continents, Africa has the youngest population.
Europe is to the west of Asia and is the second smallest continent. Europe is to the birthplace of classical music and some of the world's greatest art and literature.
North and South America are bordered on the west by the Pacific Ocean and on the east by the Atlantic Ocean. The first human beings to live in the Americas came from Asia more than 15,000 years ago.
Australia is the world's smallest continent and the world's largest island. Australia is surrounded by the Indian and Pacific oceans.
Which continent has the largest population? - Asia is the largest continent both in land and in population.
Which continent has the youngest population? - Africa has the youngest population. 50% of its population is 19 years old or younger.
What is the world's largest island? - Australia is the world's smallest continent and the world's largest island.
Which continent is to the west of Asia? - Europe is to the west of Asia.
Australia is surrounded by the Indian and Pacific oceans.
North and South America are bordered on the west by the Pacific Ocean and on the east by the Atlantic Ocean.
The first human beings to live in the Americas came from Asia more than 15,000 years ago.
Asia is the largest continent both in land and in population.
Africa is the second largest continent.
Australia is surrounded by the Indian and Pacific oceans.
Europe is to the west of Asia and is the second smallest continent.
North and South America are bordered on the west by the Pacific Ocean and on the east by the Atlantic Ocean.
L3-U2-P4-5 Dialogue : A Driverless Car
A Driverless Car
A: Hey! Look at that.
B: Look at what?
A: Look out the window. Do you see the young lady in the red dress?
B: Yeah, I see her. Wow! she’s beautiful and hot.
A: Look at the way she walks.
B: Yes, now look behind her. Look in the car that’s following her.
A: I’d rather to look at the young lady.
What is he looking at? - He's looking at a young woman in the red dress.
Where is he supposed to llok? - He is supposed to look in the car that’s behind the young lady.
A: So what’s so special about the car?
B: Look at the driver. Do you see one?
A: No, I don’t. There isn’t anybody driving the car.
B: Right, it's one of those new driverless car.
A: Maybe it’s the woman’s car. It’s following her.
B: I don’t know. Maybe you’re right.
A: Now, that’s a smart car. Maybe I’ll go outside and follow her too.
B: Hey, get back to work!
Who is driving the car? - The car drive itself.
What's the car following? - The car is following a young lady.
It's one of those new driverless car.
Look in the car that’s following her.
What’s so special about the car?
He's supposed to look in the car that’s behind the young lady.
L3-U2-P4-6 Dialogue : Calling Customer Service
Calling Customer Service
W: Thank you for calling our Customer Support. Please listen to the following menu to help us direct your call.
Please say or press #1 to pay your bill. Please say or press 2 to upgrade your service plan.
Please say or press #3 to report a technical problem. Please say or press #4 if you want to hear these choices again.
M: I don’t want any of these choices.
Please listen to the following menu to help us direct your call.
W: You may also go to our website for help.
M: I went to your website but it didn’t help. I want to speak to a human being.
W: Your business is very important to us.
How does the customer feel? - The customer is frustrated.
W: Please say or press 5 or hang up to end this call.
M: None of these! I want a human being. I want to cancel my service.
W: Please wait while we connect you to a service representative.
M: Finally, this is what they call customer service?
Please wait while we connect you to a service representative.
I want to speak to a human being.
Your business is very important to us.
The customer is frustrated because he wants to speak to a human being, not a machine.
Please say or press #1 to pay your bill.
W: To assist our representative, please say your first and last name.
M: Tom Smith.
W: We heard Tom, Smith. If this is correct, say or press #1. If this is not correct, say or press #2.
M: #1.
W: Thank you. For security purposes, what was your father’s middle name?
M: He didn’t have a middle name.
W: Thank you. A customer service representative will be with you shortly.
"For security purposes" means about the same as "for safety reasons"
W: I’m sorry but our offices are closed. Please call back during business hours.
Our business offices are open, Monday to Friday, from 8 am until 6 pm. Thank you for calling.
I’m sorry but our offices are closed.
I went to your website but it didn’t help.
Please call back during business hours.
Thank you for calling our Customer Support.