GMAT考试词汇精选(MP3+文本) 第288期:Unit35-7
日期:2016-10-28 16:07

(单词翻译:单击)

1.spectator n.观众:旁观者(one who looks on or watches)
词根记忆:spect(看)+ator--观众;旁观者
例:The bleachers at the game were filled with spectators.//We mustn't stand by as a spectator.
2.specter n.幽灵(ghost);萦绕在心头的恐惧(phantasm)
联想记忆:spect(看)+er--引入注目的东西--幽灵
例:The princess saw a specter in the corridor.//John was haunted by the specter of his past sins.
3.spectrum n.范围(scope);光谱(a continuum of color formed when a beam of white light is dispersed( as by passage through a prism) so that its component wavelengths are arranged in order)
词根记忆:spectr(光谱)+um--光谱
例:Mary's spectrum of scientific knowledge ranged from anatomy to zoology.//The ultraviolet band of the spectrum emitted by the Sun is harmful to the human body.//X-ray spectrum X 射线谱//electromagnetic spectrum电磁波频谱
4.speculate v.推测(to reflect, to think);做投机买卖(to assume a business risk)
词根记忆:specul(看)+ate--用心看--推测
例:Marine biologists speculated that clicking sounds emitted by dolphins might have another function.//The banker speculated in mutual funds.
派生词:speculation(n.推测;投机买卖):speculative(a.推测的)
5.speculation n.思索;推测(an act or instance of speculating);投机(a transaction involving such speculation)
词根记忆:来自speculate(v.思索;推测)
例:They have confirmed researchers' speculation that masses of hot rock are buoyant enough to rise to the upper part of Earth's mantle.
同根词:suspect(v.怀疑;猜想)
6.speculator n.投机者(someone who buys or sells in expectation of profiting from market fluctuations);思索者(someone who ponders)
词根记忆:来自speculate(v.投机:推测)
例:In 1929 relatively small declines in the market ruined many speculators who had bought on margin; they had to sell, and their selling pushed other investors to the brink.
同根词:speculative(a.投机的;推测的)
7.sphere n.球(globe);领域(an area or range)
联想记忆:地球是被大气(atmosphere)环绕着的球体(sphere)
例:armillary sphere浑天仪 //material and spiritual sphere物质领域和精神领域
同根词:hemisphere(n.半球);atmosphere(n.大气层):biosphere(n.生物圈)
8.spherical a.球的,球状的(having the form of a sphere or of one of its segments)
词根记忆:来自sphere(n.球体)
例:Cartographers have long struggled with the problem of how to draw the spherical Earth on a flat sheet of paper.
派生词:spherically( ad.球地,球状地) -
同根词:sphericity (n.球形:球面)
9.spiced a.加香料的,加调料的(containing spice or spices)
例:The chef cooked the beef in a heavily spiced stew.
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