UNIT 11: SOURCES OF ENERGY
Listening
Listen and repeat
ecologist resources renewable
fossil fuels unlimited fertilized
Task 1: Listen and complete the sentences by circling the letter A, B, C or D.
Tip
Remember to find key words that help you choose the correct answer.
Ecology is the study of ____________
A. Human beings and animals B. The environment and solar energy
C. Natural and alternative resources D. Human beings and their environment
2. The natural environment consists of ______
A. the oceans and the land B. the sun and the air
C. all natural resources D. the air and the oceans
3. If the resource can be ____________, it is called renewable.
A. burnt quickly B. used easily
C. divided properly D. replaced quickly
4. Grass for animals is a _________ resource.
A. renewable B. nonrenewable
C. limited D. clean
5. According to the passage, coal is nonrenewable because takes __________ to make it.
A. billions of years B. millions of years
C. three million years D. three billion years
Task 1: Listen and complete the sentences by circling the letter A, B, C or D.
1. Ecology is the study of ____________
A. Human beings and animals
B. The environment and solar energy
C. Natural and alternative resources
D. Human beings and their environment
these resources must be protected from pollution and conserved. Ecologists study their importance and how to use them carefully.
2. The natural environment consists of ______
A. the oceans and the land
B. the sun and the air
C. all natural resources
D. the air and the oceans
The natural environment includes all natural resources that are necessary for life: the air, the ocean, the sun, and the land.
3. If the resource can be ____________, it is called renewable.
A. burnt quickly
B. used easily
C. divided properly
D. replaced quickly
If the resource can be replaced quickly, it is called renewable.
4. Grass for animals is a _________ resource.
A. renewable
B. nonrenewable
C. limited
D. clean
For example, grass for animals is a renewable resource. When cows eat the grass, the resource is used. If the soil is fertilized and protected, more grass will grow.
5. According to the passage, coal is nonrenewable because takes __________ to make it.
A. billions of years
B. millions of years
C. three million years
D. three billion years
Coal, however, is nonrenewable because it takes millions of years to make coal. All fossil fuels are nonrenewable resources.
Task 2: Listen to the last part of the talk and write in the missing words

Solar energy, air, and water are renewable resources because there is an (1) _____________ supply. However, this definition may change if people are not careful with these resources. The amount of solar energy that reaches the earth depends on the (2) _____________. If the atmosphere is polluted, the solar energy that reaches the earth (3) ___________ be dangerous. If life is going to continue the air must contain the correct amount of nitrogen (N), oxygen (O), carbon dioxide (CO2), and other (4) ______________. If humans continue to pollute the air, it will not contain the correct (5) __________________ of these gases.
Task 2: Listen to the last part of the talk and write in the missing words

Solar energy, air, and water are renewable resources because there is an (1) _____________ supply. However, this definition may change if people are not careful with these resources. The amount of solar energy that reaches the earth depends on the (2) _____________. If the atmosphere is polluted, the solar energy that reaches the earth (3) ___________ be dangerous. If life is going to continue the air must contain the correct amount of nitrogen (N), oxygen (O), carbon dioxide (CO2), and other (4) ______________. If humans continue to pollute the air, it will not contain the correct (5) ________________ of these gases.
unlimited
atmosphere
may
gases
amount
What can we do to save energy?
- Take note while listening
Try to note down exactly words/ phrases used in the clip
Homework
- BP Statistical Review of World Energy 2014 report
- BP Energy Outlook 2035