托福阅读长难句历来是阅读的难点，想要攻克长难句必须注意在平时进行积累。这次为大家整理了托福阅读长难句100句，对每个难句的结构都进行了解析，本文带来的是61-65，希望大家可以从文章中的长难句分析中有所收获。
61.The argument that humans，even in prehistoric times，had some number sense，at least to the extent of recognizing the concepts of more and less when some objects were added to or taken away from a small group，seems fair.for studies have shown that some animals possess such a sense.
(复合句，主句的主干是the argument…seems fair，其中从句that humans…had some number sense做argument的同位语)
人类甚至在史前已经有数字感，至少到有些物体被加到一小组里或者被拿走时能够辨别出“多了”还是“少了”的程度，这一观点似乎很合理，因为研究已经表明有些动物就有这样的意识。
62.A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals，vegetation，or materials adversely.
(特殊结构such…as to——如此…以致)
空气污染物的一个有用定义是：一种直接或间接加入到空气里的化合物，其数量足以对人类、动物、植物或物质产生不利影响。
63.The acute，growing public awareness of the social changes that had been taking place for some time was tied to tremendous growth in popular journalism in the late nineteenth century，including growth in quantity and circulation of both magazines and newspapers.
(awareness…was tied to tremendous growth…为句子主干)
公众对一段时间内一直在发生的社会变化敏锐的、不断增强的意识，与19世纪晚期通俗新闻的巨大增长(包括杂志和报纸在数量和发行量上的增长)紧密相连。
64.A detailed study has been made of the prints using photogrammetry，a technique for obtaining measurements through photographs，which created a drawing showing all the curves and contours of the prints.
(被动语态)
已经使用照相测量法(一种通过照相获得测量数据的技术)对这些脚印进行了一项详细的研究，这种方法产生了一张显示脚印所有曲线和轮廓的照片。
65.Footprints thus provide US not merely with rare impressions of the soft tissue of early hominids，but also with evidence of upright walking that in many ways is clearer than can be obtained from the analysis of bones.
(特殊结构not merely…but also;比较结构)
因此脚印不仅仅为我们提供早期人类软组织的稀有印记，而且为我们提供了直立行走的证据，这些证据在许多方面比骨头分析所提供的证据更清楚。
以上是本期为大家带来的托福阅读长难句100句(13)，阅读除了句型之外还要注意词汇，希望大家在不断的坚持中提升自己的阅读能力，最后前程百利祝大家都能取得理想的托福考试成绩。
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