English 11 unit 11 listen

If human continue to pollute the air, it will not contain the correct ( 5 )_________ of these gases.. unlimited3[r]

1.

2.

3.

4.

ecologist

conserve

conservation

fertilize

vital

nhà sinh thái học

bảo tồn

bảo tồn

làm cho màu mỡ

cần cho sống

(n):

Task

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 evironment 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 it takes to make it

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 (

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 (CO

2

), and other

(

4

) If human continue to pollute the air, it will

not contain the correct (

5

) _ of these gases.

unlimited

atmosphere

may

gases

Task 3.

Put a tick (



) in the right column and discuss the reasons

Sources of energy

Nonrenewable

Renewable

Homework: