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Step 1 Greetings
Step 2 Pre-reading
1.Show some pictures of different cities.
T:Do you like this city? Why ?
S:Because it’s beautiful and clean.
T:Yes ,I like it,too.The river and the air are clean.
T:Do you like this city? Why?
S:Because it’s not clean/dirty.
T:It’s messy and dirty.新授messy 、dirty.板书
2.Ask for Volunteers.
T:Now, Yancheng is establishing National Civilized City.(创建全国文明城市) Would you like to join us? To be a volunteer, you have two tasks:
(1).What makes our city dirty?
(2).What can we do to keep our city clean?
T:We don’t like the dirty city， so we should keep our city clean. (揭示课题) Keep our city clean
Step 3 While-reading
1.Whatch and choose
（1） How is the city?
The city is beautiful and clean.
（2）What makes our city dirty?
A.clouds and water B.smoke and rubbish
2.Read and find. (快速阅读P58，完成下面的填空)
What makes … dirty?
_____from cars and ______ from _______
make(s)
the air
dirty
the streets
______ in the _____
the river
3.Read and write.(快速阅读P59，完成P60 Think and write.)