8A Unit 7 more practice教案

unit 7 
environment
more practice
step i   review sth about the pollution.
1) where do different types of pollution come from?
2) how do they affect out live?
 let students discuss and answer them.
step ii   listen to the tape, and let the ss write some key word. ask some students to say sth about the passage.
step iii  open the book, and fill in the correct answer in the blank on page 108.
step iv  check the answers.
step v   learn the part c.
step vi  ask the students to describe the pictures. then write the passage according to the key words about jack’s story and jill’s story on page 110.
step vii  check the passage. 
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