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详解120句，对每个句子的结构都进行了详细解析，本文带来的是56-60，大家可以在备考中进行学习。
56.In addition to having to be a generalist while specializing in what may seem to be a narrow field，the researcher is faced with the problem of primary materials that have little or no documentation.
(what引导的从句作specializing in的宾语)
除了在专攻似乎是一个狭窄领域时不得不成为多面手以外，研究人员还面临着关于原始材料的文献很少或者根本没有这一问题。
分句1：in addition to…
分句2：what may seem …
分句3：the researcher is…
分句4：that has little…
1和2嵌套
1和3并列
3和4嵌套
57.Moreover，the degree to which cones are naturally slightly open or tightly closed helps determine which bill design is the best.
(句子主干是the degree…helps determine…，从句to which cones are naturally slightly open or tightly closed作degree的定语)
而且球果自然地轻微开口或紧紧关闭的程度有助于确定哪种喙的设计是最好的。
58.It was she，a Baltimore printer，who published the first official copies of the Declaration，the first copies that included the names of its signers and therefore heralded the support of all thirteen colonies.
(It was…who为强调句;the first copies为前面the first official copies的同位语)
就是她，一位巴尔的摩的印刷商，出版了《独立宣言》的最早的官方版本，即包括《独立宣言》签署者名字并因此预告所有13个殖民地的支持的早期版本。
分句1：it was…
分句2：who publish…
分句3：the first
1和2嵌套
2和3嵌套
59.By comparison with these familiar yardsticks，the distances to the galaxies are incomprehensibly large，but they too are made more manageable by using a time calibration，in this case the distance that light travels in one year.
与这些熟悉的尺度相比，到太空的距离远得难以理解，但它们也通过使用一个时间的标尺而变得更加容易对付了，在这种情况下是光在一年内走过的距离。
分句1：the distance…
分句2：but they too
分句3：that…
1和2并列
2和3嵌套
60.The primary reason was skepticism that a railroad built through so challenging and thinly settled a stretch of desert，mountain，and semiarid plain could pay a profit.
(that引导的从句作skepticism的同位语)
主要原因是存在一种怀疑主义，人们怀疑途经如此富于挑战性、人口稀疏的大片沙漠、山脉和半干旱平原的一条铁路能否获得利润。
分句1：the primary…
分句2：that a railroad…
1和2嵌套
以上是本期为大家带来的托福阅读长难句详解120句(12)，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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