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Focus of the lesson and predicted area of difficulty教学重难点：
1 Pupils can grasp the use of the modal verb: should.
2 Pupils can make sentences with use…to…
3 Students can make proposals.
Preparation教学准备：
PPT
Teaching procedures教学过程：
Step 1 Warm up
1 Greetings.
Ask students to say something about myself.
2 Show students the Time magazine to introduce Earth.
Step 2 Revision
Task1: Let’s review.
Talk about the colours of the Earth and what does they stand for?
Task2: Let’s play
Show some pictures to the students and the students say the related resources.
Step 3 Presentation & Practice
Task3:Find the rules of“ use… to…”
1.Show some pictures and the students use this pattern“use…to …，…is useful”
2.Ask students to conclude and find the rules.
3.Try to use.
Task4: Find the rules should/should not
Do a survey.
Find the rules.
Try to use.
Task5: Culture time
Earth Day is on 22nd April.
World Environment Day is on 5th June.
Step4 Consolidation
Task6 Summaize