| 英语专四听写模拟练习：土壤 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. Useful Words: clay 黏土，泥土 loam 肥土 layer 层 gravity 地心引力，重力 downhill 往下 |
| 热门资料下载： |
| 专四专八考试论坛热贴: |
【责任编辑：苏婧 纠错】 |
|
阅读上一篇：英语专四听写模拟练习：漫画家 |
|
阅读下一篇：英语专四听写模拟练习：美国的大萧条时期 |
|
|
| ·09年专四词汇与语法真题及答案 |
| ·2000年专业英语四级考试答案 |
| ·1999年全国英语专业四级考试答案 |
| ·2002年专业英语四级考试答案解析 |
| ·2003年英语专业四级考试答案 |
| ·2004年英语专业四级考试答案 |
| ·2005年专业英语四级考试真题 |
| ·2005年英语专业四级考试答案 |
| ·2006年英语专业四级考试答案 |
| ·2008年英语专业四级考试答案 |
