补全短文(阅读以下材料 回答第46——50题)The world has got rainfore

补全短文(阅读以下材料，回答第46——50题)

The world has got rainforests which cover 7% of the earth’s surface.They grow around the earth’s equator in South America,Central America,Africa,Southeast Asia,and Australia. Rainforests are important.(46)______.These rainforests are wet and warm.They get more than two meters of rain each year,and temperatures are usually between 24℃and 27℃．(47)______. Each area has a different environment with different plants,trees and animals.

(48)______.Every day a part of the rainforest,the same size as a football field,is destroyed because of human activities.(49)______,people cut down trees to make plantations to grow food,to get minerals or metals out of the ground or to build more and more houses.(50) ______.Cutting down trees must be prohibited and wild animals must be protected.If people break these rules,they must be arrested and severely punished.

_________（46）

A.Therefore strict measures must be taken

B.They give the earth oxygen,and are the home for half of the world’s animals and plants

C.Because of a growing population

D.Unfortunately,these rainforests are in danger

E.Tropical rainforests are home to tribal peoples who rely on their surroundings for food,shelter,and medicines

F. They are divided into four different areas