因果褒贬相同

Literature is inevitably a ________ rather than ________ medium for the simple reason that writers interpose their own vision between the reader and reality.

(A) distorting ... a neutral (B) transparent ... an opaque

(C) colorful ... a drab (D) flawless ... an inexact (E) flexible ... a rigid

例题：rather than 转折关系

distort 扭曲的，歪曲的;transparent 透明的，一目了然的;

colorful 多姿多彩的;flawless 没有错误的;flexible 灵活的;

答案 A

inevitably 不可避免地;

void 避免，unavoid 不可避免;

irremediable 不可治疗的;

手段-目的/结果 by, for, in order to, in an effort to

The proponents of recombinant DNA research have decided to ________ federal regulation of their work; they hope that by making this compromise they can forestall proposed state and local controls that might be even stiffer.

(A) protest (B) institute (C) deny (D) encourage (E) disregard

例题：protest 抗议;institute 建立(主谓不搭配，是干扰选项);

deny 拒绝;encourage 鼓励;disregard 无视,不理;

答案 D

forestall 阻止，妨碍;

by making this compromise中 this(还有that, such)表示指代;

原因从句：WHEN，WHICH，WHAT，WHERE，WHO

Because many of the minerals found on the ocean floor are still ________ on land, where mining is relatively inexpensive, mining the ocean floor has yet to become a ________ enterprise.

(A) scarce ... common (B) accessible ... marginal (C) unidentified ... subsidized

(D) conserved ... public (E) plentiful ... profitable

scarce 稀少;accessible 可得到的;unidentified 未被查明，未被找到;

conserve 保存，保藏;plentiful 丰富的;

答案是 E

profitable 有利可图的;

has yet to 目前还没有，有待于将来;

be动词之后的判断是至高无上的。如果本题有两个空格，则be动词的判断

填形容词的空格是首要解题的点，这是其一。其他的线索应该为它服务。其二，

be动词之后的形容词是存在的，而别的地方存在空格，则be动词之后的形容词必然是关键词，应该是为其它的空格服务。

　   分词短语、不定式在句首表目的/原因/结果

Clearly refuting skeptic, researchers have — not only that gravitational radiation exists but that it also does exactly what theory ________ it should do.

(A) doubted ... warranted (B) estimated ... accepted (C) demonstrated ... predicted

(D) assumed ... deduced (E) supposed ... asserted

例：skeptic 怀疑论者，skeptical adj. 怀疑的;

动作对象是not only…but also 引导的并列关系;

修饰点来自句首的状语

doubted 怀疑的;estimated 估计;demonstrated 证明了，展示了;

assumed 假设;supposed 假设;

答案 C

句首状语修饰主句的谓语，宾语的并列部分不可能来自句首的状语。这就是关键词的层次问题。

中文和英文在组织语言上不一样。中文是一个表义的语言，每一句话相对来说表达一个比较完整的层次：而英文它则从语法结构来组织语言，所以它是按照语法结构来进行的。两者有所差别。

线索应来自本层次或者对于本层次其中一部分的限定性的修饰，而不可能跨越更多的语言层次来寻找线