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Forest fires take place in the forest, because there are so many trees to burn. 1. Other types of wildfires include grass fires, brush fires, and hill fires.

The major cause of forest fires is human activities. This can be carelessness such as not putting out a campfire or dropping a lit cigarette (香烟). It may also be caused by setting a fire on purpose. 2. The number one natural cause of fire is lightning.

3. They can be very large in size. They can move over 6 miles per hour and can jump over rivers and roads.

Modern firefighters are well trained and know how to control forest fires. 4. Firefighters will often remove the trees and grass in a long line ahead of where the fire is going. This line is called a firebreak. When the fire reaches the firebreak it stops. 5. These airplanes can carry thousands of gallons of water to drop on hard to reach areas of the fire.

A.Forest fires can be very difficult to put out or control.

B.Billions of dollars are spent every year fighting fires in some countries.

C.Sometimes firefighters will use airplanes to drop water on fires from the air.

D.Forest fires are a type of wildfire.

E.A strong wind can help a fire to spread and move quickly:

F.Around 80% of forest fires are caused by humans.

G.Firebreak is one of the best ways to stop a fire.

九年级英语补全短文7选5中等难度题

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