SAT句子填空题快速把握句子结构最简单和有效的方法就是获取句子主干，而忽略一些附加成分，比如插入语、定语、同位语等，因为句子的核心信息一般会通过句子的主干成分来传递，而SAT句子填空中题与所填内容相关的大多是句子要体现的核心信息。因此，通过句子主干来分析空格所填的内容不失为一种较为有效的方法。请看以下10个示例：
1. If it is true that morality cannot exist without religion, then does not the erosion of religion herald the_________ of morality?
(A) regulation (B) basis (C) belief (D) collapse (E) value
2. Certain animal behaviors, such as mating rituals, seem to be_________, and therefore _________external factors such as climate changes, food supply, or the presence of other animals of
the same species.
(A) learnedimmune to
(B) innate. .unaffected by
(C) intricate. .belong to
(D) specific. .confused with
(E) memorized. .controlled by
3. Shaken by two decades of virtual anarchy, the majority of people were ready to buy_________ at any price.
(A)order (B)emancipation (C)hope (D)liberty (E)enfranchisement
4. As a person who combines care with_________, Marisa completed her duties with_________as well as zeal.
(A) levity. .resignation
(B) geniality. .ardor
(C) vitality. .willingness
(D) empathy. .rigor
(E) enthusiasm. .meticulousness
5. Her shrewd campaign managers were responsible for the fact that her political slogans were actually forgotten clichés revived and_________with new meaning.
(A) fathomed (B) instilled (C) foreclosed (D) instigated (E) foreshadowed