根据短文内容，选择正确的答案。
As you know, there’s not enough clean water for people. So many of them lose their lives because of lacking (缺少)water. In a lot of countries, people have to cut down trees to make a living. So there’s nothing to keep water from running away. Also we have polluted (污染) the land, the rivers and the air. So we have to face more and more floods (洪水) and droughts (旱灾). We must do something useful to protect our environment. We can plant more trees and look after them well. We can save water and ask our parents to do so. We can’t throw any litter on the ground and we should collect it for recycling. If we take good care of our Earth today, it will be more beautiful tomorrow.
1．Is there enough clean water for people? (
)
| A．Yes. | B．No. | C．Sorry, I don’t know. |
2．In many countries, people have to _____________ to make a living. (
)
| A．drink milk | B．plant trees | C．cut down trees |
3．If we have no trees, we will face more _____________. (
)
| A．droughts | B．floods | C．both A and B |
4．We can’t _____________ to pollute our environment. (
)
| A．plant more trees | B．save water | C．throw any litter |
5．Which of the following sentences is NOT true? (
)
| A．Planting trees is very important. |
| B．We shouldn’t save water. |
| C．If we take good care of our Earth today, it will be more beautiful tomorrow. |
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