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No two men are of a mind.(没有两个人是同一条心的。)
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(6)表示“per”的意思:
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The postman calls twice a days.(邮差每天送两次信。)
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His income is three thousand dollars a month.(他的收入每月三千元。)
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The car was running at forty miles an hour.(那车每小时以四十英里的速度在跑着。)
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(7)用于固有名词前有“像那样的人或物”的意思:
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A Newton cannot become a Shakespeare at will.(一个牛顿那样的人不能随意变成莎翁那样的人。)
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这样说的 a Newton=a great scientist like Newton.a Shakespeare=a great dramatist like Shakespeare.
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(8)在下面这样的片语中,也是要用“a”的。
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To take (have)a walk (rest,bath,smoke,etc.)(散步、休息、入浴、抽烟等)
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With a view to(旨在,为着要)
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In a passion (fury)(生气)
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Of a sudden (=suddenly)(突然)
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A few(少数)
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A little(一点)
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A good many(许多)
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(9)普通不可数的( Uncountable)名词,当作可数的( Countable)来用的时候,就得利用不定冠词了:
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(a)a piece of(一件)
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an instance of(一例)
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a portion of(一份)
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a stone(一块石头)cf.stone(石料)
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a fire(起火)cf. Fire burns.(火是会燃烧的。)
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a murder(谋杀案)
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a kindness(亲切的行为)
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a beer(一杯啤酒)
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