Wildfires
Wildfires can be dangerous. But do you know some wildfires can also be helpful? After a forest burns, new trees and plants begin to grow. Some trees even need heat for their seeds(種子) to spread(傳播). Many things can start a forest fire. Lightning, a spark(火花) from a campfire, or even a match can set a leaf on fire. The fire then spreads through the forest.
In the past, firefighters(消防隊員) put out every forest fire. Today, firefighters sometimes let a forest fire burn. Letting some fires burn may help stop some future fires. A fire can clear a forest of dead trees. It can also clear out dry leaves that might start a worse fire.
In 1988, a huge(巨大的) fire burned Yellowstone National Park. It was the biggest forest fire in history. It started in June and ended in November. Thousands of firefighters fought the fire. But the fire ended when it started to rain.
Sometimes firefighters set small fires on purpose(故意地). This is to help burn away dry areas that might start a bigger fire. Nature does the same thing. In places like Everglades National Park, small natural fires help clear out dry grass.
Even a huge fire couldn’t destroy Yellowstone. After the fire, new trees began to grow. Animals returned to the forest. Wildfires are not all good or all bad. They can sometimes be a helpful part of nature.
Choose the main idea of the passage.
A. How dangerous wildfires are. B. How wildfires are started.
C. How wildfires are put out. D. How wildfires are helpful
Match each of the following with the correct meaning.
1.start a. make sth. burn
2.match b.small stick used for lighting a fire
3.set sth. on fire c. cause sth. to begin or begin happening
4.clear d. make a place empty or tidy by removing things from it
Check T or F.
1. Wildfires are caused by nothing but nature.
2. All wildfires are terrible and bad for us.
3. The firefighters did not put out the fire in Yellowstone National Park.
4. Firefighters do jobs of putting out fires and setting fires at different time.
Fill in each blank with one proper word.
Wildfires may cause 1._________ to us but can be helpful too. When dead trees and leaves are 2.__________ by a fire, an even worse fire can be 3._________. So firefighters allow a forest fire to 4.__________ or even set forest fires when it is needed. After fires, new plants will grow and 5.__________ will come back to the forest. So wildfires have double sides.
教育理念：教育的目的是讓學生獲得一種理念和精神，是對知識和生命美好的不懈追求，進而獲得可持續發展的能力。