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New words
electricity 电，电能
distance 距离
cloth 织物，布料
action 行动，行为
ought to 应该
shut off 停止，关掉
after all 毕竟，归根结底
Review
What should we do at home
to protect the environment?
.
.
.
What should we do at school
to protect the environment?
.
.
1.We should reduce the waste we produce.
2.We should use both sides of paper.
3.We should reuse plastic bags.
1.We encourage students to collect waste paper and soft drinks cans.
2.We sort them
What should we do to improve our environment?
plant more trees
ride a bike instead of taking a taxi or a car.
Don’t litter around.
Put the litter into dustbin.垃圾桶/箱
pick up the rubbish.
Don't cut down trees.