Question

根据短文内容，用方框中所给单词的适当形式填空，每词限用一次，其中有两个为多余选项。请将答案写在题后横线上。

make; weather; happen; because; floor; day; part; year; come; need; ground; also

Rainforests cover six percent of the earth's surface. There are rainforests in many   1   of the world, but the biggest forests are in South America, Africa and South East Asia. There aren't any rainforests in Europe or North America.        About 75% of all the types of animals   2   from rainforests. Thousands and thousands of animals live in rainforests. There are many beautiful birds, insects and reptiles. Many of them live in the trees, over 30 meters from the   3   . There are also thousands of different plants - and lots of them are tall trees! It is always hot in a rainforest and the ground is always wet. It is   4   very dark there.        The rainforests are very important for us. We   5   them! The trees and other plants in the forest help to make the air that we breathe. They also help to control the   6   . They give us wood, rubber, fruits and many of our medicines.        Unfortunately, in many places, the rainforests are in danger. For example, many   7   ago there was a large rainforest in Java. There were thousands of different plants and animals in the forest, but now there is nothing.   People cut down the trees   8   they wanted to grow rice.   They also wanted to grow rubber trees   9   rubber. Many animals lived in the rainforest. Some of them went to other parts of Java, but many of them disappeared - forever. The same thing    10   now in many other parts of the world. The rainforests are in danger!

Answer 1

1. parts   2. come   3. ground   4. also  5.  need   6. weather   7. years   8. because   9. to make  10. is happening