我做SC的步骤乃： a.通读句子理解逻辑含义；没有读懂反复读！在读的时候看题干有米有提示（单复数代词or平行），一般很远，仔细！ b. 比较选项直接排除明显错（搭配啊修饰啊莫名其妙的时态变啊等等！） c. 从剩下的选项中选出了原句子逻辑最对应的。比如adv位置，定从位置，到底是想修饰还是想表达结果？到底是表目的还是表结果？一切自己不能yy，都是可以在原句中找到答案的。 d.选出来了就代入原句，看是不是match！
EG. 106 Even though Clovis points, spear points with longitudinal grooves chipped onto their faces, have been found all over North America, they are named for the New Mexico site where they were first discovered in 1932. 指代明了，OG这题可以立即秒杀。
比如说Q106 Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is precisely the opposite, a tool for communicating with a large, public audience.
(A) Marconi’s conception of the radio was as a substitute for the telephone, a tool for private conversation; instead, it is
(D) Marconi conceived of the radio to be a tool for private conversation, a substitute for the telephone, which has become which在这里，has这个动词提示了是which的指代对象是单数。往前看,telephone是单数，在人称和单复数上满足指代对象的条件。所以telephone是可以作为which的先行词。 而这个句子里头想要修饰的是 radio，含义上面判断所以错。
(E) Marconi conceived of the radio to be a substitute for the telephone, a tool for private conversation, other than what it is,
所以点2同样适用于由，which、who引导的定语从句。 什么xx and xx, which...xx and xx who必然错！ 因为当which，who 等等在人称和单复数上有几个可以指代的对象时，which，who指代不唯一有歧义。
3.代词少指代介宾短语里头的N。不指代所有格(N's 的N）和名词充当形容词时候的名词（eg. park owner，后面出现代词不能指park）
谢谢楼主啊~~~楼主加油呐。