Question

急需一篇关于介绍沙漠的英语作文

Answer 1

The desert surface is covered by a thick layer of fine sand-like sand (it has been to the seaside �0�3and the beach is the same.'s Just a different reason, the water is a long-term, and the other is the wind Long-term role.) Desert is a peaceful land, the desert surface will change and movement of their own, of course, is the role of the wind. Because the sand will run with the wind. Layers of sand dunes will move over and change into different forms.

Temperature difference between the desert areas, the average annual temperature up to 30-50 ℃, the temperature difference greater, summer afternoon, the ground temperature can reach more than 60 ℃, if the beach Limai an egg and soon the Shaoshu. The night temperature also dropped to below 10 ℃. As the temperature difference between day and night, is conducive to the storage of sugar, so the desert oasis of fruits are particularly sweet.

Desert wind and sand, and strong winds. - Largest wind up 10-12. Strong wind over the large number of Fusha, a ferocious wind and sand flow, constantly blowing pitting the ground so that the landscape changes dramatically.

Value to people's vigilance is that some form of the desert is not natural, but man-made causes. Such as the United States between 1908-1938 due to 900 million mu of deforestation, the destruction of vast grassland, with the result that large green space into a desert. The Soviet Union in 1954-1963, the movement of Reclamation, the Central Asian steppe was severely damaged, has not been cultivated land, the desert has brought disaster.

Sub great harm to human beings, it engulfing farmland, villages, buried railways, highways and other transportation facilities. According to historical records, China on the Silk Road Loulan city, is engulfed by the desert. Now, mankind is doing everything possible to prevent desertification, such as afforestation, planting grass sand, set up sand barrier and so have received a very good results.

Answer 2

沙漠的地表覆盖的是一层很厚的细沙状的沙子(有去过海边吗?和沙滩是一样的.只不过形成的原因不同,一个是水的长期作用,而另一个是风的长期作用.)沙漠是一片幽静的土地,沙漠的地表是会自己变化和移动的,当然是在风的作用下。因为沙会随着风跑.沙丘就会向前层层推移,变化成不同的形态.

沙漠地区温差大，平均年温差可达30-50℃，日温差更大，夏天午间地面温度可达60℃以上，若在沙滩里埋一个鸡蛋，不久便烧熟了。夜间的温度又降到10℃以下。由于昼夜温差大，有利于植物贮存糖分，所以沙漠绿洲中的瓜果都特别甜。

沙漠地区风沙大、风力强。最大风力可达10-12级。强大的风力卷起大量浮沙，形成凶猛的 风沙流，不断吹蚀地面，使地貌发生急剧变化。

值行人们警惕的是，有些沙漠并不是天然形成的，而是人为造成的。如美国1908-1938年间 由于滥伐森林9亿多亩，大片草原被破坏，结果使大片绿地变成了沙漠。苏联在1954-1963年的垦荒运动中，使中亚草原遭到严重破坏，非但没有得到耕地，却带来了沙漠灾害。

撒哈拉沙漠给人类带来很大危害，它吞没农田、村庄，埋没铁路、公路等交通设施。据史书记载，我国丝绸之路上的楼兰古城，就是被沙漠吞没的。现在，人类正在千方百计地防沙治沙，如植树造林、植草固沙、设置沙障等都收到了很好的效果。