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reduce [r?'dju:s] vt. & vi. 减少，降低
We can reduce air pollution by _____________.
cause serious air pollution
cause [k?:z] vt. 导致，造成
adj. 严重的
riding bicycles
We can save water by ____________________.
save water
take shorter showers
taking shorter showers
缩短淋浴时间
turn off the lights
save energy
We can save energy by __________________ when we leave a room.
turning off the lights
节约能源
recycle [ri:’sa?kl] vt. 回收利用，循环利用
We can protect the environment by ______________.
recycle waste
recycling waste
Plastic bags
We can protect the environment by
______________.
taking our own bags
It’s wise of people to protect the environment and live a green life.
The class 1, Grade 8 students are talking about ways to live a green life. Look at the pictures below and match them with the correct sentences.
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.