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27.-Mr.White didn’t come last night, did he?

    -No, we ________for him.A whole night was wasted.

    A.waited                    B.have been waiting

    C.were waiting                  D.had been waiting

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26.Praise is like sunlight to the human spirit; without _______ we cannot flower and grow.

    A.them         B.it            C.that          D.which

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25.He was rejected for the job vacancy because he couldn’t be ______even for the interview.

    A.responsible   B.beneficial      C.punctual      D.regular

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24.―I’d like a pen which _______ well.

    ―Will this one _______?

    A.writes; do       B.writes;work    C.is written; do    D.is written; work

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23.-Do you like cats ?

    -Of course .They mean________ a kind of pet to their masters .

    A.less than        B.more than       C.no more than    D.not more than

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22.―Can you finish the reports today?

    ―Sure.I’ve _______ half of them already.

    A.got away from                  B.got down to  

    C.got around                    D.got through

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第一节:单项填空(共15小题,每小题1分,满分15分)

21.My mother asked me to repeat________telephone number________second time so that she could write it down .

    A.the ; a         B.a ; the          C.an; a        D.the ; the

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22.(本小题满分14分)

如图,已知抛物线:过点F(1,0)作两条互相垂直的弦,AB,CD,设弦AB,CD的中点分别为M,N。

  (1)线段MN是否恒过一个定点?如果经过点,试求出它的坐标,如果不经过定点,试说明理由;

    (2)求分别以弦AB,CD为直径的两圆公共弦中点的轨迹方程,并说明它表示怎样的曲线。

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