Causes
People and climate change are causing much of the land to turn to desert. People cutting down too many trees and grazing too many cattle and other livestock have harmed the land.
Also, as more cropland is lost each year, more and more people try to live for the remaining good land. This speeds up the harm to the land.
Scientists are using pictures taken from space to track the growing deserts. They are working to heal the damaged environment.
Help:
fragile adj. easily broken or damaged 易损的
Try this:
It is ______ and ______ that are causing much of the land to become desert. More and more people ______ the remaining good land is also a reason for the desertification.
Key: people; climate change; leaving for
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2016-03-17
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