题目内容：

Today we can see that many people are cutting down the trees in the forests. A lot of rich land has become deserts. If we   1.    （read）newspapers, we’ll learn that the forests on the earth are getting smaller and smaller all the time. We are   2.(cut) down large numbers of trees because we need wood and farmland. In many   3.  (place), the new farmland will soon look like the old deserts. Some scientists say that there will not be any great forests in 20 or 30 years.

It’s our duty 4.    (protect) the forests well. Everyone should try his best to make a contribution to   5.   (take) care of the forests.