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reduce vt. & vi.
减少，降低
e.g. We can reduce air pollution by riding bicycle.
turn off
关上（开关）
e.g. We can save energy by turning off
the lights when we leave.
recycle vt. 回收利用，循环利用
e.g. We can protect the environment
by recycling things.
wise adj.
明智的，充满智慧的
e.g. The professor is very wise.
这名教授充满智慧。
cause vt. 导致；造成
e.g. Human pollution causes global warming.
人为污染导致全球变暖。
take a shower
e.g. We can save water by taking
shorter showers.
The class 1, Grade 8 students are talking about ways to live a green life.
Is this a green life?
Please save water!
How can we live a green life?
多乘坐地铁、公交
How can we live a green life?
a. We can reduce air pollution by riding bicycles.
b. We can save water by taking shorter showers.
c. We can save energy by turning off the lights when we leave a room.
d. We can protect the environment by recycling waste.