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10. 乘坐公交/地铁______________________
11.从…搬走 _____________________
12.种更多的树 ______________________
keep our city clean
these pictures of our city
make the air dirty
make our city dirty
smoke from cars
black smoke from factories
messy and dirty
be dead
in the water
take the bus/the metro
move ...away from
plant more trees
Enjoy a song
messy and dirty
No, it isn’t.
乱七八糟的
肮脏的
Is the city clean?
干净的
We should keep our city clean!
我们要保持城市整洁！
了解城市污染的现状
提出解决问题的建议
Watch and answer:
What makes our city dirty ？
clouds
smoke