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27. When ____ help, one says "Thank you" while when _____ help, one asks "Can I help you?"

A. ffered; offered   B. ffering; offered    C. offering; offering    D. offered; offering

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26. The key point is not who said the words,______ they are true or not.

A. but whether     B. and whether       C. but how           D. and how

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25. As I know, it is five years since Mary ____ in the south.

A. lives          B. lived            C. has lived           D. was living

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24. Jim is ____ person, and everyone is willing to be ____ with him.

A. so kind a; friends                                   B. sokind; friend

C. such kind a; friends                                  D. suchkind; friend

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23. _____the teacher couldn't understand was______ fewer and fewer students showed interest in her lessons.

A. What; why     B. That; what        C. What; because      D. Why; that

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22. -What are your parents?

-My father isteacher, and my mother is______.

A. he other       B. he rest           C. her              D. another

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第一节  单项填空(共15小题;每小题1分,满分15分)

从A、B、C、D四个选项中,选出可以填人空白处的最佳选项,并在答题卡上将该项涂黑。

21. When I left ____ college, I gotjob as ________ journalist inmagazine office.

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

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22.(本小题满分12分)

设椭圆()的长半轴的长等于焦距,且为它的右准线。

(I)求椭圆的方程;

(II)过定点(为常数)作斜率为()的直线与椭圆交于不同的两点AB,问在轴上是否存在一点N,使直线NANB的倾斜角互补?若存在,求出N点坐标,若不存在,请说明理由。

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