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教学过程：
Step 1 Pre-reading
Guessing game.
Talk about the Earth with the students(Learn: Earth)
What shape is it?/How old is it?/ What color is it?
Read the title. (Learn: protect)
What’s in her body? (Learn: coal, oil, energy, most of)
Step 2 While-reading
Watch the cartoon
Q: How can we protect the Earth? (Learn: save, plastic)
Save water Save energy Save trees
Don’t use too much plastic
Passage 1 Save water
Look and say
Q1: What do we use water to do? (Learn: We use water to …)
Q2: (PPT) Can we use water like him? (Learn: waste)
Listen, read and think
Q:What should we do?
We should reuse and save it. (Learn: reuse)
Read the passage
Passage 2 Save energy
Watch the cartoon and try to know more about energy
Listen and judge (Learn: so much)
Read the passage
Passage 3&4 Save trees, Don’t use too much plastic
The students learn by themselves
Task 1 Read and circle
Task 2 Discuss in pairs and fill in the form
Do you think the plastic is bad or good?.
Read the whole text .