Now researchers suspect that dreams are part of the mind's emotional thermostat, regulating moods while the brain is “off-line”.

目前，研究人员猜测梦是大脑情感自动调节系统的组成部分，当大脑处于“掉线”状态时对情绪进行调整。 【析句】Suspect后面是that引导的宾语从句；逗号之后的现在分词短语regulating moods…作定语，解释thermostat 的意思，句末的while引导一个时间状语从句。

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Americans often say that there are only two things a person can be sure of in life: death and taxes.(*)

分析：主语：Americans；谓语：say；that引导一个宾语从句，还包含有一个省略了关联代词的定语从句，a person can be sure in life修饰two things. 当先行词在定语从句中作宾语时，常可省略。

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We can also see in this phrase "in the Beginning" - we can see it applying to the end of the preceding clause, "That Shepherd who first taught the chosen Seed / in the Beginning."

太初“一词“,还修饰了后面跟着的从句，“那个牧羊人，最初向您的选民宣讲“

耶鲁公开课 - 弥尔顿课程节选