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GRE阅读高频机经原文及题目：恐龙灭绝和行星撞地球
恐龙灭绝和行星撞地球(逻辑)
Iridium, a hard, whitish metal similar to platinum, is extremely rare on Earth. Extremely high concentrations of iridium on Earth result from only two scenarios: massive volcanic eruptions that release iridium from deep within the Earth and meteorites that shower down on Earth from space. When scientists found concentrations of iridium 30 times higher than normal in rock stratum from 65 million years ago, they concluded that a massive meteor or comet hit the Earth and caused the massive extinction of the dinosaurs.
Which of the following, if true, most strongly supports the scientist’s conclusion?
A. Volcanoes massive enough to generate high concentrations of iridium are very rare.
B. Massive volcanic eruptions occurred frequently 80 million years ago.
C. Most scientists support the hypothesis that a cosmic impact wiped out the dinosaurs.
D. The massive extinction that occurred 70 million years ago killed not only the dinosaurs but also 70 percent of all life on Earth.
E. A comet struck the earth some 120 million years ago, but no widespread extinction occurred.
GRE阅读词汇之疯狂类
dipsomanian.嗜酒狂
kleptomanian.盗窃癖
megalomanian.自大狂
pyromanian.纵火狂
monomanian.对一事的热狂,偏执狂
manian.癫狂，狂热
maniacaladj.发狂的，狂热的
ardorn.热情，狂热
berserkadj.狂怒的，疯狂的
deliriumn.精神错乱，发狂
fadn.(流行一时的)狂热,时尚
fanaticadj.狂热的，盲信的n.狂热者
fanaticismn.狂热盲信
franticadj.疯狂的，狂乱的
insaneadj.疯狂的
insanityn.疯狂，愚昧
lunacyn.疯狂，愚行
paranoian.偏执狂，多疑症
paranoidadj.偏执狂的，过分怀疑的
possessedadj.疯狂的
queeradj.奇怪的，疯狂的
rabidadj.患狂犬病的，疯的，失去理性的
tempestuousadj狂暴的
voyeurn.窥淫狂者，窥隐私者
zealotn.狂热份子，热心者
unhingev使发狂，使错乱
GRE阅读词汇：嘲笑类
deridev.嘲弄，愚弄
derisiveadj.嘲弄的
gibe(=jibe)v.n.嘲弄，讥笑
jeerv.嘲笑
mockv.嘲笑，模仿地嘲弄
parodyn.嘲弄文章，拙劣的模仿
persiflagen.挖苦，嘲弄
pilloryn.颈手枷，示众，嘲弄
pokev.刺,戳,嘲弄
railleryn.善意的嘲弄
sarcasmn.讥讽，讽刺，嘲笑
sardonicadj.讽刺的，嘲笑的
scoffn.v.嘲笑，笑柄
sneerv.嘲笑，鄙视
spoofv.揶揄，嘲讽
tauntv.嘲笑，讥笑
badinagen打趣，嘲弄
quizzableadj可嘲笑的
bantern/v嘲弄，戏谑
chaffinga.嘲弄的,诙谐的
badinagen.嘲弄,揶揄
teasev\n揶揄,戏弄
teasinga揶揄的,恼人的
trotv快步走，用参考书学，愚弄
GRE阅读词汇睡眠类
lethargy n.昏睡，倦怠
nap n.v.小睡，打盹
repose v.躺着休息，安睡
slumber v.n.睡眠，安睡
slumberous adj.昏昏欲睡的
dormant adj.冬眠的，静止的
hibernate v.冬眠，蛰伏
hibernation n.冬眠
hypnosis n.催眠状态
hypnotic adj.催眠的
mesmerize v.对…催眠，迷住
narcotic n.催眠药 adj.催眠的
opiate n.安眠药，鸦片制剂
somnolent adj.思睡的，催眠的
soporific adj.催眠的，n.安眠药
insomnia n.失眠症
GRE阅读高频机经原文及题目：恐龙灭绝和行星撞地球
