TPO28阅读有几道题求解答

romanceytr

1）第一篇第12题，为什么选A，我选的是B，但是怎么着都没找到denpending on rain fall的原文，可能跟后半段我就不太理解作文在说什么有直接关系。。（能帮我翻译一下后半段吗）
2）第二篇的第28题B选项：我找了很久都没找到原文说：人先控制了牛并最终驯化了牛的原文，求解

网上找了好久没有原文解析，有个什么TPO求助的网还设置了权限（真XX），希望大家帮我解答一下，谢了。

cccyen

Because the surface of the water table is not flat but instead rises and falls with topography, groundwater is affected by gravity in the same fashion as surface water. Groundwater flows downhill to topographic lows. If the water table intersects the land surface, groundwater will flow out onto the surface at springs, either to be collected there or to subsequently flow farther along a drainage.   Ground water commonly collects in stream drainage but may remain entirely beneath the surface of dry stream-beds in arid region. In particularly wet years, short stretches of an otherwise dry steam-bed may have flowing water because the water table rises to intersect the land surface.

他說呢～在Arid地區水通常都藏在乾的河床底下，但是在particular wet years，也就是雨量比較豐富的時候，因為water table上升並且跟land surface相交，所以水就跑出地表啦～
所以文章imply了降雨量會影響water table的變化
而你選的B選項level of water does not vary in arid regions 就一定不對啦，因為文章最後一句已經說了儘管在arid area，wet years的時候 water table會上升

cccyen

關於第28題

原文段落如下：
Smith believes that the hunters were well aware of the more disciplined ways in which their prey behaved. Instead of following the cattle on their annual migrations, the hunters began to prevent the herd from moving from one spot to another. At first, they controlled the movement of the herd while ensuring continuance of their meat diet. But soon they also gained genetic control of the animals, which led to rapid physical changes in the herd. South African farmers who maintain herds of wild eland (large African antelopes with short, twisted horns) report that the offspring soon diminish in size, unless wild bulls are introduced constantly from outside. The same effects of inbreeding may have occurred in controlled cattle populations, with some additional, and perhaps unrecognized, advantages. The newly domesticated animals behaved better, were easier to control, and may have enjoyed a higher birth rate, which in turn yielded greater milk supplies. We know from rock paintings deep in the Sahara that the herders were soon selecting breeding animals to produce offspring with different horn shapes and hide colors.

B. Once Saharans controlled the breeding of their cattle, the characteristics of the cattle changed rapidly, increasing their reproductive rates and milk production.

從紅字部分可以得出B選項這個結論喔 希望有回答到你的問題

romanceytr

懂了 谢啦！！

romanceytr

cccyen 发表于 2013-10-7 11:35
關於第28題

原文段落如下：

感谢感谢！！！