OG-162

162. Concerned at the increase in accident fatalities, Tennessee adopted a child-passenger protection law requiring the parents of children under four years of age to be restrained in a child safety seat.

(A)  the parents of children under four years of age to be restrained in a child safety seat

(B)   the restraint of parents of children under four years of age in a child safety seat

(C)  that parents restrain children under four years of age in a child safety seat

(D)  that children be restrained under four years of age in a child safety seat by their parents

(E)   children to be restrained under four years of age by their parents in a child safety seat

我想请教

但是好像A of B结构，是修饰A的吧？

今天第9次看这题时忽然觉得c有问题呀

C)  that parents restrain children under four years of age in a child safety seat

in a child safety seat 是单数，前面的 children是复数

逻辑意义上不就成了 把所有四岁下的儿童限制在一张椅子上了？不通呀

我也在想，为什么用单数 a child safety seat?

应该是表示一类东西，是一种专门的可以在车上放小孩的座椅。试想改成child safety seats,好像意思比较模糊。

Choices D and E misplace the phrase under four years of age so the phrase dangles and seems to modify restrained rather than children.

OG说DE中的状语under 4 years of age有修饰歧异，但BCD中的in a child seat就不会有修饰age的歧异吗？

(B) the restraint of parents of children under four years of age in a child safety seat
(C) that parents restrain children under four years of age in a child safety seat
(D) that children be restrained under four years of age in a child safety seat by their parents

奇怪啊。我一开始以为介词短语做状语修饰离得最近的名词，但发现OG162没提 in a child seat的有可能是修饰age的歧异。然后我想也许是因为age包括在under 4 years of age这个状语里，所以两个状语并列共同修饰其前面的名词，

但是E中说E misplaces the phrase in a child safely seat to create the idea that the parents are in a child safety seat. 即parents包括在by their parents 这个状语里也有可能发生歧异。

再来一个例子163

Found throughout Central and South America, the sloth hangs from trees by its long rubbery limbs, sleeping fifteen hours a day and moving so infrequently that two species of algae grow on its coat and between its
toes.

OG解释说：The pronoun its shows clearly that the limbs belong to the sloth, not the trees.

trees 是在from trees这个状语中的，怎么就有trees by its long ...limbs的歧异（撇开its单复数问题不谈）。