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.
听选What is a major threat to our existence? -pollution is a major threat to our existence.
听选What poisons the air and water? -Pollution poisons the air and water that we depend on.
填空Polluted water poisons our food supply.
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.
听选With global warming, what is rising? - With global warming, global temperatures are rising.
填空To be in a comfortable range means to be neither too hot nor too cold.
排序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.
听说As the polar icecaps melt, ocean levels will rise.
听说Areas of some countries will soon be under water.
看说Pollution poisons the air and water that we depend on.
看说In modern times we humans face changing conditions.
看说To be in a comfortable range means to be neither too hot nor too cold.
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 temperatures rise, the polar icecaps will melt.
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.√
听选What did we do depend on?-The entire ecosystem that we depend on is changing.
听选What kinds of change cannot be undone?-Irreversible changes cannot be undone.
填空The entire ecosystem that we depend on is changing.
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.
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.√
听选What do we need to protect ？- We need to protect our environment.
填空We need to do this before it’s too late.
听说 Some of these changes are irreversible.
听说We need to protect the environment that supports us.
看说In nature, even small changes can sometimes have large effects.
看说With more understanding, we can make better choices about what to do.
It’s difficult to predict what’s going to happen.
Irreversible changes cannot be undone.
What challenges do we need to face?- We need to face the challenges of pollution and global warming.
网友评论