大漠拆句-9

大漠拆句：
继大漠点词之后又一个新的尝试，精选14-15年托福阅读真题中出现的句子简化题并进行拆解精析，最终的目标是希望能够帮助同学们掌握长难句的读法，在有词汇量的基础上快速把握句子主干。最终轻松搞定句子简化题，但更重要的是掌握一般性的长难句的读法，为所有的阅读考试扫平障碍。目前正在积累备课中，未来一到两月备课成熟以后上线。

Origin of the Solar System（2015.04.12）

Nearly five billion years ago, some external influence, such as a shock wave traveling from a catastrophic explosion (supernova), may have triggered the collapse of this huge cloud of gases and minute grains of heavier elements, causing the cloud to begin to slowly contract due to the gravitational interactions among its particles.

主干：

the elite marriage practice had encouraged rulers to maintain multiple palaces

非主干成分:

• 介词短语作时间状语

• before the eighth century
• at least for some years after marriage

• 定语从句插入语

which was an important instrument of political alliance making

• 定语从句

who commonly remained at or near their native family headquarters.

• of名词性短语

instrument of political alliance making

其他值得一提的知识点

• remain : 作为动词有「剩下／遗留」的意思，但是在托福考试中更常见的一个用法是 remain+adj./adv. 表示「保持某种状态」（stay in the same condition）,比如这里的remain at their the native family headquarters。

真题实战

A. The elaborate marriage customs of the elite encouraged spouses to remain at their family palace for several years after marriage.
B. Rulers maintained multiple palaces for themselves and their spouses’ families.
C. Before the eighth century, it was common for the elite to form political alliances with their spouses’ families at the native family headquarters for some years after marriage.
D. Before the eighth century, the practice of forming alliances through marriage encouraged rulers to maintain palaces at their spouses’ family homes as well as at their own.

答案：D
解释：关于简化题的做法日后专门说，这里只是简单提一下最核心的原则：主干对主干。D选项的主干为the practice encouraged rulers to maintain palaces at their spouses' family homes as well as at their own，主干与原文一致;
A主干：the marriage customs of the elite encouraged spouses to remain at their family palace
B主干：rulers maintained multiple palaces for themselves and their spouses's
C主干：it was common for the elite to form political alliances with their spouses' family

关注TD，和6W出国党一起战斗