1. 阅读理解

If you travel by air across the center of Africa or South America, you will fly over forests for thousands of kilometers. These great forests are the oceans of trees. They are full of thousands and thousands of different kinds of plants.

    However, the world's forests are getting smaller and smaller all the time. We are cutting down the trees. If we cut down our forests, a lot of plants and animals will disappear from the world in a lot of places. The new farmland will soon become desert. Crops will not grow there. It will not rain very often, and the climate will change, too. These will be dangerous for everyone in the world. That is why we must take care of our forests.

1. （1） The passage mainly tells us                       .

   A . the importance of taking care of our forests   B . the results of cutting down trees   C . where the great forests are      D . that the world's forests are getting smaller and smaller all the time
3. （2） Which of the following is TRUE?

   A . Africa and North America are the oceans of birds. B . Forests are homes for different kinds of plants. C . Different plants can't be found in the same forest. D . We can see forests everywhere.
5. （3） If we go on cutting down trees in forests, what will happen?

   A . The climate will change. B . Many plants and animals will disappear. C . There will be more desert and less farmland    D . A, B and C
7. （4） Can you infer what will happen in 20 or 30 years if we continue to break the   forests according to the passage?

   A . We will have more forests. B . We will have enough wood for cooking. C . We will have no forests like those in the center of Africa. D . We will not have enough land to grow crops.
9. （5） The writer thinks                .

   A . it's dangerous for people to kill animals B . it's necessary for people to take care of the forests C . it's impossible for people to take care of the world D . it's important for people to keep animals.