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3. 能流利的朗读课文。
4. 知道怎样使我们的城市保持干净，培养学生的环保意识。
五、教学重难点：
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
3. 能流利的朗读课文。
教学用具：PPT课件等
六、教学过程：
Step 1 Warm up
1. Greetings
2. Free talk
T: Where do you live? (Huai’an )
T: What can you think of about Huai’an?
(Ping Qiao Toufu, the former resident of Primary Zhou Enlai, Cha San, Shao Hu Park)
T: Do you like Huai’an? Let’s enjoy some pictures of our past city. How was the city? What do you want to do in the clean city?
Step 2 Pre-reading
1. Show some pictures taken by students before class.
T: Is our city clean now? So we should …
揭题：Unit 6 Keep our city clean
2. Our city is dirty and messy now.
Teach the new words: dirty and messy
3. What makes our city dirty?
Present the pictures which makes our city dirty and teach students the new words.
Teach the new words: smoke, factory, rubbish, dead and bin
Step 3 While-reading
Task 1 Watch and answer
Our city is messy and dirty. What about Su Hai, Wang Bing and Liu Tao’s city? Is their city clean or dirty?
Watch the cartoon (the first part) and answer the question .
Task 2 Read and find
What makes their city dirty?