sat语法易错题解析!
逻辑词中有搭配
Improving Sentence 一般属于重点抢分部分，我们一般要求做过完整复习的考生在考试时能够尽量获得满分。可总有一些意想不到的绊脚石存在。大家且翻到OG 470/10
For all their talk about ecology, major companies have so far spent very little to fight pollution.
A) For all their talk
B) In spite of the fact of their having talked
C) Besides their having talked
D) In addition to their talking
E) Although there is talk between one and the other
根据此题的划线部分或通过比较选项，我们能轻易得知首先须判断句子前后的逻辑。根据前后的暗示词比如talk about, spent little(说过但做得少), 我们得知是前后是相反的，而绝非因果类或递进类的关系。因此考生会认为符合选项的只有B和E, 因为A,C,D 选项分别表示了因果和层进的关系。
“简洁原则”有例外
Although the candidate promised both to cut taxes and improve services, he failed to keep either of them after the election. ( Online Course 1，Section 7, 9)
A. Although the candidate promised both to cut taxes and improve services, he
B. The candidate, having promised both to cut taxes and improve services,
C. Although the candidate made promises both to cut taxes and improve services, he
D. Having promised, first, to cut taxes and, second, to improve services, the candidate
E. The candidate's promises were both to cut taxes and improve services, he
此题读下来逻辑顺畅，的确是让步的关系。笔者欲提醒考生，一般原题中的逻辑词是正确的话，逻辑词需保留，为体现句子之逻辑性。因此B不正确，D太繁琐，E选项是RUN-ON SENTENCE, 答案被锁定在A和C选项。
此时同学很容易根据“简洁原则”(promise to do比make promise to do 简单)而觉得A就是正确答案。其实不然。要知道在“简洁原则”之前还有“准确原则”，先要判断它是否表达地对，才能判断其是否简洁。
“平行”有时不对称
Katarina could not be certain whether the voice she heard on the recording was her uncle or someone else who speaks with a heavy German accent.(2011.5/section 5,11)
A. uncle or someone else
B. uncle or that of someone else
C. uncle’s or someone else
D. uncle’s or that of someone else
E. uncle’s or someone else’s
根据题干我们知道在这里比较的对象是VOICE, 所以可以将选项锁定在D和E中。又有同学会根据“平行对称原则”毅然选择E选项。因此煮熟的鸭子也会飞走，快到手的分数悄悄滑落。