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wasteful
carelessly
2
P101
Complete the sentences with the correct form of the words .
1. The factory ________ the river, and the fish died.
A. polluted B. to pollute C. polluting
2. We often walk in the countryside. It is a(n) _______ activity for us.
A.usual B. unusual C. usually
3. Do not use so much water. It is very ________.
A. waste B. wasteful C wasted
4. To keep the flowers growing, you need to _______ them once a day.
A. water B.watering C. watered
A.
A.
B.
A.
Discussion
1. How many kinds of pollution do you know?
2.What causes pollution?
3. How to stop pollution?
Watch and answer questions
What causes pollution?
rubbish
plastic bags
paper cups and
paper bags
cars on the roads
Divide our rubbish into plastic, glass and paper
Take our own bag when we go shopping