Grade 8 Unit 4 Topic 1 Section C

Rainforests

Rainforests are thick forests in the hot parts of the world. It rains a lot ^[1] a lot /lots (of) : a large amount or number of people or things 大量，许多and the ground is always wet. It’s always dark and hot in rainforests. Rainforests cover 6% of the earth’s surface. They provide places to live for^[2] provide sth. for sb.： 为某人提供某物； thousands of ^[3]thousands of: 许多，无数；数以千计的……，成千上万的…… plants and animals found nowhere else on Earth. There are lots of tall trees and other different kinds of plants. Thousands and thousands of ^[4]Thousands and thousands of : 成千上万的；千千万万；千千万万的animals live in rainforests. Many of them live in the trees over^[5]over:  more than, 意为“多于，超过” 30 meters from the ground.

Rainforests are very important to us. They are the lungs of the earth. The plants in the forests help to make the air fresher and cleaner. They also help to hold the water ^[6]hold the water: 涵养水源 when it rains and keep the water cycling ^[7]keep the water cycling: 保持水循环  keep + n. + doing (sth.) , keep用于此结构时，意为“使…不停地做…” . They play an important part in ^[8]play an important part in：在…方面起重要作用；在……中起重要作用；在……起重要作用 controlling^[9]control: 控制    注意现在分词是双写尾字母再加-ingthe climate. Rainforests also help to keep the beauty of nature. Without rainforests, many beautiful plants and animals would die out. Rainforests give us wood, food, fruit, medicine, and many more useful things. We need rainforests for many reasons. But now, rainforests are becoming smaller and smaller ^[10]smaller and smaller: 比较级+ and + 比较级，意为“越来越……” 要注意，当形容词的比较级是前面加more的时候，此结构的形式为more and more + 形容词, so we should protect them.