几个SAT语法问题

Question

1. As children mature, they develop (an independence) that their parents, who have been responsible for them since they were born, often find difficult to accept.
Children是复数，怎么可以对上an independence？

2. The oldest dated jigsaw puzzle, (which was engraved) in 1767, is a hand-colored map of the counties in England and Wales.
A. which was engraved
B. being engraved
答案为A
括号部分being engraved为什么错？

3. Societies acting through their governments make the rules (to state) which acts are illegal, but although war is the most violent of human activities, it has not been declared illegal by any of the world’s governments or their agencies.
A. to state
B. stating
答案为B
括号部分为什么是stating？to state表societies的目的不行吗？

4. Jean Toomer was not only the author of Cane, a novel whose publication has been viewed (as making) the beginning of the Harlem Renaissance, but also a respected advisor among Quakers.
括号部分为什么没错？be viewed as sth，不应该是has been viewed as the mark of 吗？

5. Pual Ecke, flower grower and hybridizer, became known as “Mr. Poinsettia” after developing new varieties of the flower and (by pioneering) it as a living symbol of Christmas.
如果after developing和by pioneering并列的话，为什么解释说by多余了？这算是绝对错误吗？

6. The fruit fly is often used to study genetic _____ scientists can observe the effects of experiments on several generations.
A. mechanisms, since, with its rapid reproduction,
B. mechanisms; because it reproduces rapidly,

Explanation for Incorrect Answer A:
Choice (A) involves incorrect punctuation. The subordinating work “since” should not be preceded by a comma.

Since前面不能有逗号？？

谢谢！

Answer 1

1. Children虽然是复数，可以对上an independence 因为这是一种独立性 作宾语
2. .A. which was engraved
括号部分being engraved现在分词的被动形式 作非限制性定语 表示正在发生的被动 与句子意思不符 故 错
3. B. stating是定语 说明rules的具体内容
to state表societies的目的虽然行 但意思 与句子要表达的意思 有出入
4. 括号部分没错 因为这是动名词 短语 作介词as的宾语 后面是动名词的宾语
整个动名词短语 表示的是抽象行为
as the mark of 是名词作介词宾语 表示的是 具体的 东西
5. (by pioneering) 如果after developing和by pioneering并列的话，by就不是多余
但 我认为 并列的 不是两个介词短语 而是 两个动名词
6. Since是从属连词 引导状语从句 置后时 前面不应该有逗号 后面有逗号 是因为插入了 一个 作状语的 介词短语
状语从句置前时 有逗号 与主句隔开

追问

很详细，再请问一下第三题Societies acting through their governments是不是整体作主语？

追答

是的 acting...是现在分词作定语

Answer 2

你在备考SAT吗？去问问小马过河的老师吧，比较有权威的人，给你的建议，有利于你更好的备考，也给你省去该省的时间