所谓的原因细节题就是细节题里面的一种。细节题作为听力题型中的重中之重，因此不容小觑。下面前程百利小编就TPO真题分析托福听力原因细节题。
原因细节题的特点
在听力文章中句子跟句子之间的逻辑关系没有阅读中那么复杂。因果关系是其中最好表述的一种，而且也是考点之一。表示原因的信号词有：
前因后果：therefore，consequently，as a consequence，result in，lead to。
前果后因：result from，originate from，arise out of。
其它：because (of)， so, the reason, why, since, as, for
解题技巧
例1. TPO18 lecture 1第2题
Why did European astronomers before the time of Galileo not believe sunspots were on the Sun's surface? (why是原因细节题的一种标志)
A. They based their beliefs on earlier observations by Chinese astronomers
B. The idea was contrary to their beliefs about objects in space.
C. The sunspots often changed their shape.
D. The sunspots were not always visible.
第一步：通过信号词和题目定位原文内容。When later European astronomers wrote about sunspots, they didn't believe that the spots were actually on the Sun. That’s because (信号词)of their belief at the time that the heavenly bodies, the Sun, Moon, Stars, and Planets, were perfect, without any flaws or blemishes.
第二步，根据内容推测答案。That’s because是比较明显的提示词。欧洲宇航员对太阳黑子的“偏见”源于他们对天体的认知，the heavenly bodies, the Sun, Moon, Stars, and Planets, were perfect, without any flaws or blemishes.他们一直以来都认为天体是没有缺陷的，当然不可能有个黑点在上面。
第三步，进行选择。文章提到伽利略认为黑色的东西在太阳上面，但是欧洲人不认为太阳上有黑子，因此他们的观点是矛盾的。因此答案为C选项。
例2. TPO17 lecture 3第4题
What are two points the professor makes about the administrative calendar? Click on 2 answers.
A. It included more religious festivals than did the other calendar.
B. It was used for scheduling tax payments.
C. It had the same number of days every year.
D. It used the Moon to determine the beginning of the year.
第一步，判断题型。这道题虽然没有明确的表达原因信号词，但是在所对应的文章中，包含了因果关系，因此这道题也属于原因细节题。For administrative purposes, it was very inconvenient to have years of different lengths. So another calendar was introduced, an administrative one. This administrative calendar was much easier to use for things like scheduling taxes and other things that had to be paid on time.
第二步，根据信号词分析内容。通过For和So这两个信号词，可以发现他们后面的内容都是重点信息，可以发现正式因为年的长度不同，因此设计了行政管理年，通过这样的因果关系to have years of different lengths、calendar was introduced, an administrative one.可以看出行政管理年的长度都一样。因此对应B选项。接下来直接说道This administrative calendar was much easier to use for things like scheduling taxes对应C选项。
第三步，总结。在这道题目里，虽然没有明显的表述原因的词汇，但是所对应的答案是含有因果关系的，因此考生在听的过程中要注意含有因果关系的提示词之后的内容，这些内容既是文章的关键信息也是答题的需要的内容。
以上就是真题详解托福听力原因细节题的相关内容。希望通过例题和题型特点的分析，同学们能够对原因细节题做到心中有数，提高听力正确率。
托福听力例子细节题详解
托福听力推断题案例详解
实例讲解：托福听力错误选项的特点
