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What do you think of the city?
Is the city clean ?
No,it isn't.
It's dirty.
肮脏的
thirty
What makes our city dirty?
make 使......变得
What can we do to keep our city clean ?
Unit 6: Keep our city clean
保持
城市
Q1：What makes our city dirty?
Listen to the first part （P58 ）,underline the answers. 听读课文第一部分，用“ ”划出答案。
Is our city clean?
Miss Li: Look at these pictures of our city.
Students: No, it isn’t.
Miss Li: What makes our city dirty?
Su Hai: Smoke from cars makes the air dirty.
Wang Bing:Black smoke from factories makes the air
dirty too.
Liu Tao:Rubbish makes the streets messy and dirty.
Su Hai:The river is dirty.
There‘s rubbish in the water and the fish are dead.
factories
black smoke from
a factory
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What makes the air dirty？