单项选择题
1、 在3与9之间插入两个正数，使前三个数成等比数列，后三个数成等差数列，则这两个正数的和为    (    )
A．27/2
B．45/4
C．21/2
D．19/2


2、通读下面的短文，回答题。
     A young woman rode with her new husband in a wagon(四轮马车)． They came to a log cabin(小木屋)． The man shouted and a little boy came running out of the cabin． Sarah,the yokingwoman, got down from the wagon, opened wide her arms and held the boy close．
      "Hello, Abe Lincoln," she said． "I think we'll be good friends． "
     The new mother with the smiling face went to work at once． She washed Abe and his sister andtidied( 弄整齐) their hair． And that night she threw away the boy' s mattress(床垫)of leaves andgave him a soft mattress and enough blankets to keep him warm at night．
      Sarah wove cloth and made new shirts for Abe． She made him new deerskin trousers and even
deerskin shoes．
     Maybe,if she hadn' t come to the cabin, he wouldn' t have lived to be a man． When Abe' sfather told him not to go to school any more and help on the farm, Sarah took Abe' s part against his"father． Abe would rather read than eat, and when his father told him to stop, Sarah said," Let the boyread． "
     In 1830 the day came when Abe would leave home to work in New Salem． For the last time shehad taken Abe' s part against his father． For the last time she had kept the cabin quiet so that Abecould read．
     More than twenty years later, when Abe, who had then become famous, was going to make a
speech in a nearby town, Sarah went there just to watch him． In the crowd she tried to make herselfsmall, but he saw her, and in front of everybody, got out of his carriage and went over and put hisarms around her and kissed her． Yes, that was her Abe．
"He loved me truly," she said later．
Which of the following is not true?
A．The young woman in the wagon was Abe' s new mother．
B．The man in the wagon was Abe' s new father．
C．The httle boy was the young woman' s new son．
D．The little boy running out of the cabin was Abe．


3、<下列句子中，成语使用不正确的一句是（ ）
A．这时就只好别出心裁，在刀口上加一条短棍，算是指明“这个地方”的意思，造了“刃”字。
B．老师针对班上同学参差不齐的现状，讲课时注意分类指导，同学们都很满意。
C．孤独也许可以使一个口若悬河的人从此缄默不语，但不能使一个思维活跃的人停止思考和遐想。
D．即使得了冠军，也不能对同伴侧目而视，自以为老子天下。


4、



5、 依次填人下列各句横线处的词语，恰当的一项是（　　）
①他把__________家里受苦的情况都讲了出来。
②鲁迅主编的刊物__________反动当局查封了。
③__________是否应聘，我还没有做出后决定。
A．从  让 至于
B．在  让 关于
C．从  被  关于
D．在  被  至于


6、
A．diamond
B．object
C．observe
D．seldom


7、 --He never spoke to her in English, __________ he?
-- __________ . I once heard them talk in English.
A．didn't ; No, he didn't
B．did;No, he didn't
C．didn't;Yes, he did
D．did ;Yes, he did


填空题
8、



9、填空题．
(1)log5125=3的指数幂等式是______；
(2)[(1g 5)²一(1g 2)²]÷(1g 25一lg 4)=—______；
(3)(1g 5)²+1g 2•lg 50=______；
(4)已知1g 2=0．301 0，lg 3=0．477 1，则
1g 6______， l9g 180=______，
1g 0．025=______，lgg／45=______．

简答题
10、已知抛物线经过点(2，3)，对称轴方程为x=1，且在x轴上截得的弦长为4，试求抛物线的解析式．

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