Ⅴ. 任务型阅读（主题：人与自然·自然灾害）
There are some things in nature that we cannot stop from happening. We cannot stop the power of nature.
A flood comes when there is too much water on the land. Sometimes, it is after a big storm when too much rain falls on the land. Sometimes it is after a big storm at sea when too much sea water comes onto the land. The fast flood water can hurt us and destroy our homes. We cannot stop a flood from coming, but we can try to stop the water from coming into our homes. We can try to stop the water by making a wall. We can use sandbags to make the wall.
An earthquake comes when the land moves. The land goes up and down and in different directions. The land can crack(断裂). An earthquake can hurt us. We can get hurt by things that fall down in an earthquake. Fallen things can start fires. We cannot stop an earthquake from coming, but we can try to make our homes strong so that they do not fall down in an earthquake.
A tornado(龙卷风) is the fast air that goes around and around over the land. A tornado can pick up anything. It can break anything that is on the way. A hurricane(飓风) is a big storm with fast strong winds and heavy rains. It begins on the sea and can come onto the land. Its fast winds can hurt us and destroy our homes. We cannot stop a tornado or a hurricane from coming, but we can get out of its way.
We cannot stop the power of nature, but we can go to places where we can be safe.
根据上面短文内容，回答下列问题(每小题答案不超过10个单词)。
21. When does a flood come?
When there is too much water on the land.
22. How can we try to stop the water?
By making a wall.
23. Why should we try to make our homes strong?
To make sure they don't fall down in an earthquake.
24. A tornado has many dangers. Give one example.
A tornado/It can pick up anything. /A tornado/It can break anything that is on the way.
25. When facing a tornado or a hurricane, what can we do?
We can get out of its way.
