这里为大家介绍的
托福TPO模考软件介绍：
1.考生不需要下载TPO模考软件，只需要在线注册一个账号即可练习。
2.TPO模考练习包含了1-34套真题，真题内容全面。
3.每套真题分为听书读写四个内容，考生可以根据考试进行模考也可以按照自己的想法任意选择。
4.每套真题作答完毕，都有对应的答案和解析。
5.写作部分有作文评分及批改。
托福TPO模考软件内容预览：
TPO1 Groundwater
Groundwater is the word used to describe water that saturates the ground, filling all the available spaces. By far the most abundant type of groundwater is meteoric water; this is the groundwater that circulates as part of the water cycle. Ordinary meteoric water is water that has soaked into the ground from the surface, from precipitation (rain and snow) and from lakes and streams. There it remains, sometimes for long periods, before emerging at the surface again. At first thought it seems incredible that there can be enough space in the "solid" ground underfoot to hold all this water.
The necessary space is there, however, in many forms. The commonest spaces are those among the particles-sand grains and tiny pebbles-of loose, unconsolidated sand and gravel. Beds of this material, out of sight beneath the soil, are common. They are found wherever fast rivers carrying loads of coarse sediment once flowed. For example, as the great ice sheets that covered North America during the last ice age steadily melted away, huge volumes of water flowed from them. The water was always laden with pebbles, gravel, and sand, known as glacial outwash, that was deposited as the flow slowed down.
The same thing happens to this day, though on a smaller scale, wherever a sediment-laden river or stream emerges from a mountain valley onto relatively flat land, dropping its load as the current slows: the water usually spreads out fanwise, depositing the sediment in the form of a smooth, fan-shaped slope. Sediments are also dropped where a river slows on entering a lake or the sea, the deposited sediments are on a lake floor or the seafloor at first, but will be located inland at some future date, when the sea level falls or the land rises; such beds are sometimes thousands of meters thick.
以上就是为大家整理的托福TPO模考软件绿色版无需安装(附解析)，希望通过这款软件的TPO练习，能够帮助大家更好的来练习托福真题，备考考试。