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2. 能听懂、会说、会读、会写：keep, clean, make, dirty
3. 能流利的朗读课文。
四、教学难点：
1. 能听懂、会说、会读：What makes…dirty /messy? …makes…dirty / messy. What can we do to…? We can…
2. 能听懂、会说、会读、会写：keep, clean, make, dirty
五、教学准备：
PPT
六、教学过程：
Step 1 Warm up
Greetings
T: Good afternoon, boys and girls.
Ss: Good afternoon, Miss Zhao.
T: I’m your new teacher Miss Zhao.
I visited your school just now. It’s so big and beautiful. It’s clean. Do you like your school?
2. Free talk
T: Do you want to know something about me?
Look, I usually take a walk in the park. I often to boating. I like flying kites. Look at these pictures. It’s our city. It’s beautiful and clean.
We live in the city, so we should keep our city clean.
揭题：Unit 6 keep our city clean
Step 2 Presentation
T: Look , who are they? Let’s look at their city
Watch and choose
The city is ________
A. beautiful and clean B. messy and dirty
新授： messy, dirty
T: The city is messy and dirty. Why? What can you see in these pictures?
新授: smoke from cars , smoke from factories, rubbish, dead fish
T: Now please open your books, read P58 and find
新授： A: What makes our city dirty?
B: …makes…dirty