L3-U3-P1-1 Listening :?Life & Conditions 1

Life & Conditions 1

There are many forms of life on Earth, including human beings.

Life exists in a variety of conditions.

Some forms of life live in a watery environment, like the oceans.

Other?forms of life can be found in very dry areas like deserts.

However, for any form of life to exist, conditions must be right.

When conditions are not right, that form of life will become extinct.

To become extinct means to die out completely.

What is one?form of life on Earth? -?Human beings are?one?form of life on Earth.

Life exists in a?variety?of conditions.

However, for any?form?of life to exist,conditions?must be?right.

Conditions must be right for life to exist. Millions of years ago there were forms of life that no longer exist.

When conditions changed, these forms of life dead out.

One extinction event happened about 250 million years ago. This was the largest extinction event of all time.

Many forms of life became extinct. 96%(Ninety six percent) of all life in the oceans died out.

Most insects also became extinct. This event happened over a period of several million years.

What?happened about 250 million years ago? -?One extinction event happened about 250 million years ago. Many forms of life became extinct.

What causes an?extinction event? -?The?conditions that support life change.

Millions of years ago?there?were?forms?of life that no longer?exist.

The causes of this?extinction event are still unknown.

Possible causes inculde large volcanic eruptions and global warming.

Some scientists belive that there were several causes.

They believe that a series of events caused the extinctions.

Scientists are working to better understand what really happened.

What is one?possible cause of this event? -?Possible causes inculde large volcanic eruptions and global warming.

What do some?scientists think?caused the extinctions? -?Some scientists belive that there were several causes.

The?causes?of this?extinction?event?are still?unknown.

Life exists in a variety of conditions.

Ninety six percent of all life in the oceans died out.

To become extinct means to die out completely.

Some forms of life live in a watery environment, like the oceans.

This event happened over a period of several million years.

They believe that a series of events caused the extinctions.

L3-U3-P1-2 Listening :?Life & Conditions 2

Life & Conditions 2

In modern times we humans face changing conditions.

For humans to live, we need clean air and clean water.

Pollution is now a growing problem around the world.

Pollution poisons the air and water that we depend on.

Polluted air makes people sick and afraid to go outside.

Polluted water poisons our food supply.

As a result, we never know which foods are safe to eat.

Human beings cannot live in a poisoned environment.

Therefore, pollution is a major threat to our existence.

What is a growing problem? -?Pollution is now a growing problem around the world.

What do humans need to live? - For humans to live, we need clean air and clean water.

Pollution?poisons?the air and water?that?we?depend?on.

Humans need temperatures to be in a comfortable range.

To be in a comfortable range means to be neither too hot nor too cold.

With global warming, global temperatures are rising.

As temperatures rise, the polar icecaps will melt.

As the polar icecaps melt, ocean levels will rise.

Areas of some countries will soon be under water.

People will be forced to relocate from flooded areas.

With global warming, what is?rising? -?With global warming, global temperatures are rising.

As the polar icecaps melt, what will happen? -?As the polar icecaps melt, ocean levels will rise.

Areas of some countries will?soon?be?under?water.

As the polar icecaps melt, ocean levels will rise.

Areas of some countries will soon be under water.

As temperatures rise, the polar icecaps will melt.

In modern times we humans face changing conditions.

To be in a comfortable range means to be neither too hot nor too cold.

In nature, even small changes can sometimes have large effects.

It’s difficult to predict what’s going to happen.

The entire ecosystem that we depend on is changing.

Some of these changes are irreversible.

Irreversible changes cannot be undone.

What can?small changes sometimes cause? -?In nature, even small changes can sometimes have large effects.

What's happening to the world's?ecosystem? -?The entire ecosystem that we depend on is changing.

The entire ecosystem?that?we?depend?on is?changing.

Let’s hope that humans are smart enough to understand how the world is changing.

With more understanding, we can make better choices about what to do.

We can face the challenges of pollution and global warming.

We need to do this before it’s too late.

This planet Earth is our only home and we need to protect it.

What?challenges do we need to face? -?We need to face the challenges of pollution and global warming.

We?need?to do this?before?it’s too?late.

It’s difficult to predict what’s going to happen.

Irreversible changes cannot be undone.

In nature, even small changes can sometimes have large effects.

With more understanding, we can make better choices about what to do.

L3-U3-P1-3?Vocabulary?:?Forms of Life

Forms of Life

Mammals are covered by hair or fur, have a backbone and warm-blooded.

All female mammals produce milk for their young.

Reptiles are covered by scales and include snakes, lizards and turtles.

Reptiles have a backbone and are cold-blooded, which means they often rely on the external sources of heat.

Birds are covered by feathers and are warm-blooded.

Most birds can fly and many types of birds migrate great distances.

Most insects such as ants and bees have a small, 3-part body with 3 pairs of legs.

Some insects, like mosquitoes, spread diseases that cause the deaths of many humans.

Unlike animals, plants get the energy that they need from the sun.

Plants convert light energy, along with carbon-dioxide and water, into chemical energy.

What type of animals are?covered by hair or fur? -?Mammals are covered by hair or fur, have a backbone and warm-blooded.

Snakes and lizards are what type of animal? -?Reptiles are covered by scales and include snakes, lizards and turtles.

What?warm-blooded animals are?covered by feathers? -?Birds are covered by feathers and are warm-blooded.

What type of animal are ants and bees? -?Insects such as ants and bees live in well-organized?

What type of life gets energy directly from the Sun? -?Unlike animals, plants get the energy that they need from the sun.

What?female mammals produce?for their young? -?All female mammals produce milk for their young.

Most birds can?fly?and many types?of birds?migrate great distances.

Some insects,?like?mosquitoes, spread?diseases?that?cause?the deaths of many humans.

Most?mammals live on land, but some live in the sea.

Birds are covered by feathers and are warm-blooded.

Unlike animals, plants get the energy that they need from the sun.

Insects don't have a?backbone and most are?cold-blooded.

Most birds can fly and many types of birds migrate great distances.

L3-U3-P1-4?Vocabulary?:?Instruments

Instruments

Scales and rulers are used to measure weight and length.

Units of weight include kilograms and pounds, and units of length include centimeters and inches.

These instruments are used to observe very large and very small objects.

Telescopes are used by astronomers, and microscopes are used by biologists and doctors.

These appliances are used in the kitchens of almost every home.

Stoves are used to heat food, and refrigerators are used to keep foods cool or cold.

Household tools like these, are used to build and repair things.

Hammers are used to pound in nails and screwdrivers are used to turn a screw.

What would you use to measure the height of your kids? -?Rulers are used to measure?length.

What is used to?measure weight and length? -?Scales and rulers are used to measure weight and length.

10 kilograms is how many?pounds? -?10 kilograms is about 22 pounds.

What would you use?to cook some vegetables? -?Stoves are used to heat food.

What is found in?almost every?kitchen? -?These appliances are used in the kitchens of almost every home.

These instruments are?used?to?observe?very large and very small?objects.

If you need to?pound?in a?nail, use a?hammer.

Two inches is a little more than five centimeters.

If you need to?pound?in a?nail, use a?hammer.

Telescopes are used by astronomers, and microscopes are used by biologists and doctors.

Household tools like these, are used to build and repair things.

L3-U3-P1-5?Dialogue?:?Dating Anniversary

Dating Anniversary

W: Do you know what day it is?today?

M: What do you mean? Is it a?special?day?

W:?Oh, so you don’t remember.

M:?Remember what?What’s so special?

W:?It’s our?anniversary. We?started dating?a year ago today.

M:?Oh, really? Sorry!

When did they fist?started dating? -?They started dating a year ago.

?M: Just a minute. What do you think this is?

W:?Oh, it’s a necklace.

M:?Do you like it?

W:?Yes, I do. It’s lovely,?especially?the red heart. May I put it on?

M:?No, let me do it.

What did he give her? - He gave her a?necklace.

W:?So you did remember.

M:?Of course I remember it. It’s a very special for both of us.

W:?I have something for you too.

M:?You do?

W:?Yes, but it will have to wait until later.

M:?Oh, I can’t wait. Tell me what it is.

What will have to wait until later? -?She won't give him her gift?until later.

Do you know what today is?

W:?Can you guess what it is?

M:?Could you give me a?hint?

W:?We went there six months ago.

M:?Oh, you mean Alfredos.

W:?Yes, are you excited? You said you really like the food there.

M:?Yes, that’s true. I also remember their dessert, do you?

W:?Yes, but let’s not talk about that now. Let’s not ruin the surprise.

What is?Alfredos? -?Alfredos is an Italian restaurant.

It’s a very special for both of us.

You said you really like the food there.

She won't give him her gift?until later.

They aren't going to?talk about the?dessert.

L3-U3-P1-6?Dialogue?:?Fine Dining

Fine Dining

W: That restaurant looks nice.

M: Yes, but it looks expensive.

W:?Let’s go in and look at the menu.

W:?Wow, the menu looks great, especially the fish.

M:?Yes, it looks good but look at those prices.

What does she like about the menu? -?She likes the food choices, especially the fish.

M: Let’s try somewhere else.

W: Sometime it’s okay to spend a little money.

M:?Yes, but this price is a bit too high, don’t you think?

W:?Yes, they are a bit high. But don’t you think I’m worth it? Let’s enjoy ourselves.

M:?Emm, OK, if you put it that way. Let’s see if we can get a table.

W:?I’m glad you have your credit card.

M:?I sure hope the food is good.

W:?Stop worrying. Let’s just enjoy.

How is he going to pay? -?He's going to use his credit card.

Sometime it’s?okay?to?spend?a little?money.

Let’s see if we can get a table.

I sure hope the food is good.

She likes the food choices, especially the fish.

The menu looks great, especially the fish.

Sometime it’s okay to spend a little money.