托福阅读中有很多的逻辑关系。正是逻辑使得长长的托福阅读文章可以紧密“成团”，因为逻辑，ETS有更多的题目可以带给考生。明确ETS如何利用逻辑出题，并由此确定我们可以怎样用逻辑解题，这是很高难度的一步。今天，前程百利小编拿出因果逻辑来告诉大家，托福阅读中还有“因为”、“所以”解题策略。
因果关系从一些词汇中可以明显识别出来，比如because(of), since, for, as, due to, owing to, In that, so(that), therefore, thus, hence, as a result, consequently...等等，当然，如果是什么“导致”了什么，什么“来源于”什么，这也可以看做是隐藏着的因果联系。正是因为这些词语，我们可以将两个或者更多相关句子当做一个意群来分析。
托福阅读 “因为”、“所以”解题策略适用于哪些题目呢?来看一下例题吧!
例1：
原句：The frequency with which certain simple motifs appear in these oldest sites has led rock-art researchers to adopt a descriptive term—the Panaramitee style—a label which takes its name from the extensive rock pavements at Panaramitee North in desert South Australia, which are covered with motifs pecked into the surface.
Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave ways or leave out essential information
The oldest rock art sites have simpler motifs than the best known sites of Panaramitee North.
Because motifs primarily associated with the Panaramitee region are common in the oldest sites the term Panaramitee style has become the general term for rock art of this type.
Because the Panaramitee style is so common in the older sites, researchers have described it most extensively.
The motifs carved in the rocky surface of the Panaramitee region make up the oldest form of rock art discovered in Australia.
解析：句子的主干是：The frequency has led rock-art researchers to adopt a descriptive term。句子中的主要逻辑是因果逻辑，因是The frequency，果是a descriptive term。看选项，A选项逻辑错误;B选项正确，“are common in”和“The frequency”形成同义替换;选项C、D表达错误。
从上面例题可以看出，解答因果逻辑句子的句子简化题，首先排除逻辑错误的选项，然后将因和果分别核对，即可得出答案。
例2：
Equally perplexing constituents of Allende are the refractory inclusions: irregular white masses that tend to be larger than chondrules. ■ They are composed of minerals uncommon on Earth, all rich in calcium, aluminum, and titanium, the most refractory (resistant to melting) of the major elements in the nebula. ■ The same minerals that occur in refractory inclusions are believed to be the earliest-formed substances to have condensed out of the solar nebula. ■ However, studies of the textures of inclusions reveal that the order in which the minerals appeared in the inclusions varies from inclusion to inclusion, and often does not match the theoretical condensation sequence for those metals. ■
Look at the four squares [■] that indicate where the following sentence could be added to the passage
It is therefore still unclear if all inclusions were formed in the same way.
Where would the sentence best fit?
解析：therefore是解题关键，要找一个因果关系，确定是原因是什么。段落最后一句说，矿物质的顺序在不同的内含物中不一样，正是这种不一样和不一致，对于内含物的形成一致不一提出了问题。所以答案是最后一个插入口。
由题目可以看出，在托福阅读句子插入题中，涉及根据前后因果联系来解题的情况，首先找到相应的关系词在哪，由此确定因果界限;然后找到句子合适的位置。
以上就是前程百利小编为考生带来的托福阅读“因为”、“所以”解题策略。可以利用因果关系来解题的题目一般情况下较简单，大家遇到这类题应该很开心才对。预祝大家托福考试取得好成绩!
