What is a flood and where does it happen?
A flood occurs when water pours over dry land. Floods can cause big damage when they happen unexpectedly.
Heavy rain can cause floods. If a lot of rain falls quickly, the earth is unable to soak it up, and the water builds up on the ground. When it runs off into the rivers, the rivers overflow their banks.
The worst floods happen on land that is flat and low-lying. These areas of land are known as flood plains. Mud, earth, and large objects, like cars, can be carried long distances by flood water. Then, disease spreads quickly because the flood water is polluted.
What should I know if I live on a flood plain?
Stay away from flood water. It may be polluted.
Do not walk through moving water. It can knock you off your feet. If you must walk through water, walk where the water is not moving. Use a stick to test the ground in front of you.
Stay away from power lines that are on the ground. You could be electrocuted(电死)。
If you are scared, share your fears with an adult. Floods can be terrible, but remember-the water ALWAYS goes away!
What dangers does a flood lead to?
Electrocution from power lines
Dangerous animals coming out
Drowning
What should I do if a flood happens?
Get to the meeting place of your family.
Try to get to higher ground.
Listen to your family and follow all instructions carefully.
Which of the following are related to a flood according to the passage?
a. heavy rain
b. global warming
c. low-lying land
d. the change of the river course
e. flat land

A．a,b,e

B．c,d,e

C．a,c,e

D．b,d,e

You are advised not to walk in the moving water because ___.

A．it may make you fall over

B．you may step fish and kill them

C．you may drink polluted water

D．you may lose your shoes

By saying “the water ALWAYS goes away”, the author means ___ .

A．water can’t be stopped from flowing

B．you needn’t be afraid of floods

C．you should pay close attention to floods

D．it is common for floods to happen

We can infer from the passage that during a flood ___.

A．people are more likely to be attacked by animals

B．running away is a good way to save yourself

C．gas should be cut off

D．adults should persuade children to keep silent