阅读理解。
Now our cities become much greener. A lot of trees, grass and flowers are planted on both sides of the streets. There are many advantages （好处）because of them. First, trees, grass and flowers can make our cities more beautiful. Second, plants can keep the air clean because they absorb dioxide （吸收二氧化碳）. Third ,plants can reduce （减少）the noise. Finally tress can make the weather cool in summer and warm in winter. Then how to make our cities greener? First, we should make people know the importance （重要性）of making cities greener. Next we should plant more tress, grass and flowers. And we should look after the tress, grass and flowers carefully.
根据短文内容判断正(T)误(F)。
( ) 1.There aren’t many flowers in our cities now.
( ) 2.Flowers can make our cities clean and more beautiful.
( ) 3. Trees can make the weather cool in winter.
( ) 4.It is important to make cities greener.
( ) 5. We don’t need to look after the trees, grass and flowers carefully.
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