Page 40 - Just Speak Up 1

Q Listen to each dialog and read along. Track 23
lữ

NATURE
؟1
A: ly is it bad for the environment when cities grow I
and take up more land?
It is harmful for tlie environment because there is less land available for
trees and other plants to grow aird for animals to live.
A: ^at happens when there are fewer plants?
Б: Plants produce oxygen. Fewer plants mean less oxygen is produced.
A: ^y is o^gen important?
B : Living things need oxygen to survive.

ىتس ACTIONS

A: ^at are the effects ofpolluting water? Explain.
B: Our water comes from rivers and streams. The main danger of polluting

this water is that people have to use OI" drink it.
A: ^at happens if the water in rivers or streams is polluted?
B^ If this happens, the amount of available clean, fresh water will not be
Ä| enough for everyone to drink.

A: Why is fresh water important?
B: People and animals cannot drink salt water. Plants need fresh water, too.

ỉị
ةد MATERIALS

A: ^at household items can be recycled?
B^ We can recycle paper, cardboard, cloth, plastic, metal, and glass.
A: What do you collect at home for recycling?
B^ My family and I collect old newspapers, magazines, old clothes,
milk cartons, plastic containers, and aluminum cans to be recycled.
A: Why is recychng important?
B: Recycling is important because it means that we can
reuse a lot of things. This conserves resources.
f،f£B GIASS MUAL

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Now practice these dialogs with a classmate.

38 UNIT 08 The Environment