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【例】①The infant mortality rate has risen by more than 700% compared with before the Gulf War. （1998听力）
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②In less than 10 years, we expect that 5 countries will be experiencing negative population growth because of AIDS mortality, including South Africa, Mozambique, Lesotho, Botswana and Swaziland. （2004听力）
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defraud［diˈfrɔːd］vt. 诈取，诈骗
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【记】词根记忆：de（使） + fraud（欺骗）→欺骗
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【例】The main purpose of the Exchequer is to prevent the Crown from being defrauded by its own officials.
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【用】词组defraud sb. of sth. 表示“诈骗某人某物”。
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frivolous［ˈfrivələs］adj. 轻浮的，妄为的；漫不经心的，轻率的；无聊的，浪费的
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【例】①His frivolous decision might cause severe consequence.
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②Work time is too valuable to waste on frivolous games.
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【派】frivolity〔adj. 轻浮的（言语、举止），轻薄；轻松的娱乐〕
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concur［kənˈkəː］vi. 同意；同时发生
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【记】词根记忆：con（共同） + cur（跑，引申为发生）→同时发生
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【例】①Most people here concurred with the speaker’s opinion on the matter.
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②Everything concurred to produce the desired effect.
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giddy［ˈgidi］adj. 眩晕的，头晕的；令人头晕的
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【例】Bryan was afraid of looking down from such a giddy height because of his acrophobia.
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bash［bæʃ］v. 使劲打，狠打，痛殴 n. 重击，猛攻
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【例】have a bash at 尝试一下 I am doubtful whether I could ever swim, but I’m determined to have a bash at it.
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spurious［ˈspjuəriəs］adj. 不合逻辑的，谬误的；假的，欺骗性的
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【记】联想记忆：spuri(a)（伪造的作品） + ous→假的
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【例】The self-esteem movement, still entrenched in schools of education, is deeply implicated in the dumbing down of our schools, and in the spurious equality behind the idea that it is a terrible psychic blow if one student does any better or any worse than another. （1998）
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indubitable［inˈdjuːbitəbl］adj. 不容置疑的，确实的
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【记】词根记忆：in（不） + dub（双） + it + able→没有两种可能→确实的
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【例】The debater produced indubitable evidence and bore down his opponents.
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eclectic［eˈklektik］adj. 折中的，兼收并蓄的，综合的
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