在线词典,在线翻译

专四听写训练21:Soils

所属:专四专八 阅读:4166 次 评论:0 条 [我要评论]  [+我要收藏]

小编摘要:坚持每日一听,努力攻克专四听力

Soils


There are many different kinds of soils. Different soils have different types of rock and minerals in them. Some soils have more water in them than others. Some soils might have more plant and animal material in them, too.

Different kinds of soils are found in different parts of the world. There are several kinds of soils found in the United States. In some areas, the soil has a lot of clay. Other soils are very sandy. Loam is a kind of soil that has a good mixture of clay and sand.

In some places, soil layers are very thick. Lots of plants grow in places with a thick soil layer. In dry and windy places soil layers are much thinner. Layers of soil on mountains are thin because gravity pulls the soil downhill.

The type of soil in a particular place affects what kinds of plants can grow there.


 

 

正在加载单词列表...
2
2011-08-03 18:41 编辑:wjy2005tom
分享到:
关注海词微博:
发表评论:
表达一些您的想法吧!已有0条评论>>
登录,再发表评论
文明上网,理性发言!
您可能还感兴趣的文章: