GRE填空真题对考生是非常重要的，不仅能够让考生了解考试的题型，还能让考生把握备考的方向。
1. In the solar system, collisions among the planets are among the most_____ processes shaping surfaces: many a picture of the planets in it show that a proliferation of impact craters happened in the last 4 to 5 billion years.
A. cataclysmic
B. pervasive
C. misleading
D. clairvoyant
E. vivacious
答案：E
解析：
在太阳系中，行星碰撞形成的表面是最_____过程之间：在这行星的图片显示，增殖许多陨石坑发生在过去4到5000000000年。A.激变 B.普适 c.误导 D.透视 E.活泼,通过后半句的年份可以看出其实是想体现出过程的缓慢，也就是说最快的过程也需要非常久的时间，答案选E。
2. Many innovative photographers were delighted to find in instant photography a mode that encouraged them to stop viewing photographers as____ and start viewing it as something they could handle with spontaneity, even derision.
A. sacrosanct
B. ephemeral
C. malleable
D. sacrilegious
E. evanescent
答案：A
解析：
这道题是说许多有创意的摄影师非常高兴使用即时摄影的方式，鼓励他们不再认为摄影师是____的，这让他们开始认为摄影是可以自然的发生的，甚至可以嘲笑的。A.神圣不可侵犯的，B.短暂的, C.可延展性, D.亵渎 E.瞬逝, 通过后半句可以看出答案A符合题目的意思。
3. Researchers in University of Maryland discover that many people subconsciously think that in assessment of others competence and warmth are (i) ____: when they feel someone is highly capable, they will assert that he or she must have a tendency to be (ii) ______.
Blank (i) Blank (ii)
A.clearly interconnected D. passive
B.inversely related E. nonchalant
C.physically paralyzed F. unfeeling
答案：BE
解析：
A显然是相互联系的 D.消极的
B成反比 E.漠不关心的
C肢体瘫痪 F.没有同情心的
可以看出i为B，ii为E，答案符合逻辑。
4. Recent scholarship has questioned the (i) ____ of tropical forests around the world. Archaeologists have shown, for example, that the largest contiguous tract of what was thought to be virgin rain forest in the southern Amazon had been transformed into a cultural parkland before European contact, and many of the forest islands in West Africa’s savanna forest transition zone are (ii)_____ as well.
Blank (i) Blank (ii)
A. diversity D. isolated
B. naturalness E. endangered
C. sustainability F. anthropogenic
答案：BF
解析：
最近有学者质疑热带森林在世界(i)____。考古学家发现，例如，与欧洲接触之前在南部的亚马逊原始雨林已经变成了一个文化公园，和许多在西非的热带稀树草原林过渡带森林岛屿都是(ii)_____。
A多样性 D.隔离的
B.自然 E.濒危的
C.可持续发展 F.人为的
只有当他们的发现是大部分热带雨林都是人为的时候，他们质疑热带雨林的自然性是合理的。答案选BF。
5. Unlike some mammals-- cows and sheep, for instance-- that are notably____, lions have a wide range of facial expressions.
A. tame
B. reticent
C. impassive
D. rampant
E. rapacious
答案：C
解析：
题目是说狮子有许多表情，不像一些哺乳动物______(a)驯服的(b)缄默的(c)面无表情的(d)泛滥的(e)贪婪的，这里要选“有许多表情”的反义词，所以选择C.
6. What once seemed a quixotic vision-- the "Subway to the Sea," connecting Union Station in downtown to the Pacific Ocean in Santa Monica-- no longer seems quite so_____.
A. impracticable
B. prescient
C. banal
D. viable
E. beneficial
答案：A
解析：
题目是说曾经看起来很不切实际的海中地铁，现在看起不再那么______(a)行不通的(b)预见性的(c)平庸乏味的(d)可行的(d)有益的，这里要选“不切实际的”同义词，所以选择A.
7. Fredrick's book on Eva Wakeforest seems far removed from recent trends i literary criticism; this need not be a fault, except that, in its chapter 1 and 14, the book (i) ___ to be conversant with contemporary discourse in the field, but in its actual analysis of Wakeforest's work, it is marked by a very (ii) ___ approach.
Blank (i) Blank (ii)
A. purports D. self-serving
B. contends E. old-fashioned
C. derides F. sporadic
答案：AE
解析：
关于Eva Wakeforest的书和现代文艺评论的趋势不太相同;这不是问题，问题是在第1章和第14章，这本书(i)_____很熟悉这个领域的当代论述，但是真正分析Wakeforest的作品时，这本书很明显是用(ii)_____方法。
AB.C.在空白(i)中A和B的区分点在于purport可以和to do连用，而contend则和that连用，所以选择A。在空白(ii)中要选择“当代”的反义词，所以选择E。
8. View people as "social atoms" that obey rather simple rules (which are not unlike the laws of physics), we may discover certain patterns, or "(i) ________"Buchanan illustrates the approach with a very simple example: the way channels emerge when people move in crowds. In the midst of initially (ii) _______ movements, one person begins to follow another in an effort to avoid collisions, and streams of movement emerge. As more people join such streams, there is greater pull on others to join in the flow, and the particular channels become (iii) _____.
Blank (i) Blank (ii) Blank (iii)
A. law like regularities D. clear G. self‐perpetuating
B. regular cases E. tranquil H. self-defacing
C. convoluted disorders F. chaotic I. self-sufficient
答案：AFG
解析：
人们行为有固定模式或(i)_____，比如说一开始大家都(ii)_____移动，然后一个人开始跟着另一个人走以免碰撞，然后就出现了通道。随着更多人参与进来，通道就变得(iii)_____
空白(i) 空白(ii) 空白(ii)
A法规 D.清楚的 G.能使自身永久存在的
B.常例 E.平静的 H.自我丑化的
C.紊乱 F.混乱的 I.自给自足的
在空白(i)中要选择“固定模式”的同义词，所以选择A。在空白(ii)中要说一开始是没有通道的，所以选择F。在空白(ii)中要说通道会一直存在着，所以选择G。