阅读中，总会不经意见到这样的结构：within/over/from/on/in/by/…which从句，脑袋就会突然短路，信息流一下中断，想续上就再读一遍，结果还是卡住……很凄惨的说~~遇到这样的情况，来看看下面的方法吧，有用没用自己一试就知道!
先看个句子：
Used in this way, intuition is an almost instantaneous cognitive process (in which) a manager recognizes familiar patterns.
第一个问题：which指的是谁?
指的是名词process!
第二个问题：which在从句中有什么用?
从句的主干是a manager recognizes familiar patterns，主谓都在吧?对，都在!那么which在从句里面就不是主语了，那它有什么作用呢?
DUANG! 我们的方法来了!
记住：以后读到这种结构的时候，把“介词+ which”直接放到从句里面去理解。就像这样：a manager recognizes familiar patterns in (the) process
这样好理解了吗?
句意就是：直觉是一个认知过程;在这个过程中，经理识别熟悉的模式。
再看一个有点难度的：
Because consumers recognize that color advertisements are more expensive than black-and-white, the point at which repetition of an advertisement is perceived as excessive comes sooner for a color advertisement than for a black-and-white advertisement.
前半句话很好理解：因为消费者们认识到：彩色广告比黑白广告更贵，所以……
后半句突然卡住了。。。我们一起来试试刚才的方法吧。
at which指代at the point，放到后面从句里去，从句的主干也找出来：
repetition of an advertisement is perceived as excessive (at the point)
意识是说：在某个点上，广告的重复被认为是过度
再把剩余的部分连起来：
the point (at which repetition of an advertisement is perceived as excessive) comes (sooner) for a color advertisement (than) for a black-and-white advertisement
意思是说：这个点对彩色广告来说要比黑白广告来的更快些。即，彩色广告更早到临界点，黑白广告较晚到临界点。
最后再把整个句子凑到一起：
因为消费者们认识到彩色广告比黑白广告更贵，所以(广告的重复被认为是过度的)那个点对彩色广告来说要比黑白广告来的更快些。
怎么样，记住了吗? 多练几个吧!
Some scholars have argued that Garvey created the consciousness from which he built, in the 1920s, the largest revitalization movement in African American history.
However, none of these high-technology methods are of any value if the sites to which they are applied have never mineralized, and to maximize the chances of discovery the explorer must therefore pay particular attention to selecting the ground formations most likely to be mineralized.
Although this treaty did not mention water rights, the Court ruled that the federal government, when it created the reservation, intended to deal fairly with American Indians by reserving for them the waters without which their lands would have been useless.
KEY:
he built the largest revitalization movement in African American history (from consciousness)
they are applied to the sites — if the sites have never mineralized
their lands would have been useless without the waters
