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pick, pick, pick flowers.
cut, cut, cut down trees.
the, the, the earth .
make, make, make the air dirty.
drive, drive , drive a car.
We should（应该）……
We shouldn’t（不应该）……
We should后面跟动词原形·
We shouldn’t=We should not 后面
跟动词原形。
Eg：We should keep to the rulers.
(我们应该遵守规则。)
Eg: We shouldn’t pick flowers in the
park.(我们不应该在花园摘花。）
Let’s chant
We shouldn’t cut down trees.
We shouldn’t picks flowers.
We shouldn’t waste the water.
We have only one earth.
And we shouldn’t do anything(任何事）bad.
We should make the air clean.
We should plant more trees.
We should help the animals.
We have only one earth.
And we should do something(一些) good.
练测标
一.补全单词。
() 1.pi_ A.ek B.ck C.ke
() 2._rth A.ee B.ea C.er
() 3.dr_ve A.a B.e C.a