高中英语新课标人教版(广东)高一(4)unit2 workbook

Work book Unit 2 listening text

Fighting growing desert

Why do we have desert today? Deserts are not always being¹ here. Most deserts we have today were once green lands full of plant life. One of today's biggest deserts is in north Africa. However, in the first centuny BC², farms in north Africa grew corn³ and weat, to made bread for the whole city in Broom⁴. How did this area become desert? Both weather and people can help formed the desert, hot weather or very little rain makes the land sun trike that nothing can grow. If people cut down or burn trees and plants to make a land clear for forming, the wind can blow the soil away. And turn the dry land into sand.

Another big problem is farming⁵ on land is not very good. this poor land can really quickly turn into desert if you farmed too much. one of the biggest course however is when people take that animal to the same field to feed over and over, and the field finally lose all their new treature. because of these problems,deserts are slowly taking over green land to many parts of the world including China. However we can't fight the growing desert.In some parts of China, people are working proving desert for expending⁶. In xinjiang for example,some farmers are trying use scientific⁷ farming methods⁸. These methods make it possible to use less land for crops⁹. So farmers then can plant trees on the rest of their land. One xinjiang farmer use only half of field to grow his crops last year

1 being   

n.存在；生存；生命存在，生命，人， 本质；art.在，有，是

参考例句：

• Can you explain to me the purpose of being?你能对我解释一下存在的目的吗？
• What is the purpose of our being?我们生存的目的是什么？

2 BC   

(=before Christ)公元前

参考例句：

• By 1800 BC,the climate is known to have changed.在公元前1800年，据说气候已经改变。
• In 221 BC,there was a poor scholar in Shanxi Province.公元前221年，山西有一位穷书生。

3 corn   

n.(美)玉米，(英)小麦，谷物(中)包裹

参考例句：

• Corn was first grown in America.玉米最先在美国种植。
• Was the camel carrying corn?那头骆驼驮的是谷物吗？

4 broom   

n.扫帚，灌木；vt.扫

参考例句：

• She is sweeping with a broom.她在用扫帚扫地。
• He stood his broom behind the door.他把扫帚立在门后。

5 farming   

n.农事；耕作

参考例句：

• He lives by farming.他靠务农过活。
• He is farming in Africa.他在非洲经营农场。

6 expending   

v.花费( expend的现在分词 )；使用（钱等）做某事；用光；耗尽

参考例句：

• The heart pumps by expending and contracting of muscle. 心脏通过收缩肌肉抽取和放出（血液）。 来自互联网
• Criminal action is an action of expending cost and then producing profit. 刑事诉讼是一种需要支付成本、能够产生收益的活动。 来自互联网

7 scientific   

adj.科学的；符合科学规律的，精确的

参考例句：

• Most students in our class go in for scientific activities.我们班上大多数学生参加各项科学活动。
• Look at the matter purely from the scientific point of view.用科学眼光看待事物。

8 methods   

n.method的复数：方法；方法( method的名词复数 )；方法论；教学法；分类法

参考例句：

• Despite the crudity of their methods and equipment, the experiment was a considerable success. 尽管他们的方法和设备较为粗陋，那次实验却相当成功。
• disapproval of his methods 不赞同他的方法

9 crops   

pl.农作物

参考例句：

• Farmers are being encouraged to diversify into new crops. 目前正鼓励农民兼种新的农作物。
• The crops will not grow on exposed hillsides. 在裸露的山坡上庄稼没法生长。