41. But achieving necessary matches in physical properties across interfaces between living andnonliving matter requires knowledge of which molecules control the bonding of cells to each other—an area that we have not yet explored thoroughly. (4)
但是，要想沿着原生和非原生物质之间的界面获取生理特性的必要匹配，需要某种知识，即什么样的分子控制着细胞彼此间的结合——而对这一领域，我们尚未进行充分的探索。
难句类型：复杂修饰
解释：本句这样的复杂修饰和插入语的作用差不多;主语achieving necessary matches之后的修饰成分in physical properties across interfaces between living and nonliving matter把主语和谓语requires分开。值得注意的是修饰宾主的of which molecules 中的which在此不是定语从句的引导词，而是一个形容词，意思是哪个。
意群训练：But achieving necessary matches in physical properties across interfaces between living andnonliving matter requires knowledge of which molecules control the bonding of cells to each other—an area that we have not yet explored thoroughly.
42. Islamic law is a phenomenon so different from all other forms of law—notwithstanding，of course，aconsiderable and inevitable number of coincidences with one or the otherof them as far as subject matter and positive enactments are concerned—that its study is indispensable in order toappreciate adequately the full range ofpossible legal phenomena. (5)
伊斯兰法是一种如此不同于所有其它法律形式的现象——毋庸置疑，尽管就其主要内容和有积极意义的法规而言，与其它法律形式中的这种或那种形式存在着相当数量的且不可避免的巧合相似之处——以致于对它进行研究便显得不可或缺，以便充分理解有可能存在的法律现象的全部范围。
难句类型：复杂修饰、插入语、抽象词
解释：这是一个被GRE考生尊称为No.题三大难文章之一的伊斯兰法中的臭名昭著的句子。本句插入语前后都不难，关键是如何对待这段插入语。
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