e.g. Water pollution is a serious problem in my town, so we shouldn't throw trash into rivers.
UNIT 3 PROTECTING THE ENVIRONMENT
I/ PRONUNCIATION
A. Choose the word whose underlined part differs from the other three in pronunciation in each
of the following questions.
1. A. pollution
B. transport
C. waste
C. section
2. A. plant
B. water
B. Choose the word that differs from the other three in the position of the main stress in each of
the following questions.
3. A. affect
4. A. recycle
II/ VOCABULARY
B. pollute
B. reduce
AND GRAMMAR
C. disease
C. organize
D. plastic
D. forest
D. damage
D. important