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8. - Have you ever read J. K. Rowling’s “Harry Potter” series?

-Yes. While in Britain,I ____them a couple of times. 

            A.have read   B.read       C.had read  D.would read

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7.____ she first heard of the man referred to. 

            A.That was from Charles       B.It was Charles whom

            C.It was from Charles that     D.It was Charles that

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6.The primary purpose is to ____ the public those achievements in the scientific research about botany.

            A.make known by           B.make known to

            C.make know to           D.make knowing by

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5.Mum turned down my suggestion ____ Dad spoke in favor of my idea. 

            A.since     B.while      C.when    D.as

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4. - Now,where is my straw hat?

-____!Father’s calling us downstairs.

            A.Take your time            B.Don’t worry

            C.Come on              D.Take it easy

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3.Cooperman and Teller are ____ of selling $4,700 worth of heroin to a number of drug users.

            A.accused    B.attached     C.accustomed D.charged

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2.The environmentalists said wild goats’____ on the vast grasslands was a good sign of the better environment.   

            A.identification          B.absence   C.attendance  D.appearance

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第一节:语法和词汇知识(共15小题;每小题1分,满分15分)

1.As ____ consequence, ____ fruits such as peaches and pears are in fact related, although they are different at ____ first sight.

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

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16.如图所示,一辆有四分之一圆弧的小车停在不光滑的水平地面上,质量为m的小球从静止开始由车的顶端无摩擦滑下,且小车始终保持静止状态.试分析:当小球运动到什么位置时,地面对小车的静摩擦力最大?最大值为多少?

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15.质量为m的登月器与航天飞机连接在一起,随航天飞机绕月球做半径为3R( R为月球半径)的圆周运动。当它们运行到轨道的A点时,登月器被弹离, 航天飞机速度变大,登月器速度变小且仍沿原方向运动,随后登月器沿椭圆登上月球表面的B点,在月球表面逗留一段时间后,经快速起动仍沿原椭圆轨道回到分离点A并立即与航天飞机实现对接。已知月球表面的重力加速度为g。试求:

(1)登月器与航天飞机一起在圆周轨道上绕月球运

 行的周期是多少?

(2)若登月器被弹射后,航天飞机的椭圆轨道长轴为8R,则为保证登月器能顺利返回A点,登月器可以在月球表面逗留的时间是多少?

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