托福阅读考前点睛系列(三)：句子简化题

　　其实，我们在读原句的时候并不需要完整的彻底的摄取信息，相反，我们通过快速浏览，只需要关注两个关键点：一是原句当中的表示程度，频率的词，二是原句当中的逻辑关系。并不需要吸收所有信息，只需要快速浏览将所关注的信息点抓住即可，这样便节省了大量的时间。

　　The extreme seriousness of desertification results from the vast areas of land and the tremendous numbers of people affected, as well as from the great difficulty of reversing or even slowing the process.

　　Which sentence below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information.

　　A. Desertification is a significant problem because it is so hard to reverse and affects large areas of land and great numbers of people.

　　B. Slowing down the process of desertification is difficult because of population growth.

　　C. The spread of deserts is considered a very serious problem that can be solved only if large numbers of people in various countries are involved in the effort.

　　D. Desertification is extremely hard to reverse unless the population is reduced in the vast areas affected.

　　解题思路：

　　句子中最核心的信息首先就是该句的逻辑关系。原句的逻辑关系可以由result from 来判断，为因果关系。借此我们就可以缩小选项范围，首先排除掉C,D选项。剩下的A,B两个选项均包含因果的逻辑关系。接下来我们可以根据句子的第二种核心信息：主语，来判断。原句的主语是Desertification沙漠化，而B项的主语是Slowing down the process of desertification减缓沙漠化进程。所以排除掉B选项，A为正确答案。