单项选择题
1、 如果椭圆的一焦点与短轴的两个端点连线互相垂直，则这个椭圆的离心率是
A．1/2
B．√2/2
C．√3/2
D．1/4


2、 下列各组城市中多雨期在同一时期的是（　　）
A．加尔各答、休斯敦、开普敦
B．悉尼、巴西利亚、圣地亚哥(智利)
C．伦敦、阿尔及尔、圣弗朗西斯科
D．北京、乌兰巴托、洛杉矶


3、 下列关于《天演论》的评述，不正确的是（　　）
A．《天演论》的翻译者是严复
B．《天演论》运用“物竞天择”的生物进化观点，宣传“优胜劣汰”的社会进化理论
C．在《天演论》中，严复呼吁“救亡图存”、“自强保种”，推动了变法运动的发展
D．《天演论》宣传了社会主义思想


4、 It has been almost five years __________ we saw each other last time．
A．after
B．before
C．since
D．when


5、通读下面的短文，回答题。
       As a boy I dreamed of flying airplanes． 21 I told Dad I wanted to be a pilot,he said, "Youneed to do your job well on the farm first, and 22 you may realize your dream． "The farm was aneveryday responsibility (职责)--that．   23  Saturday, Sunday and Christmas too． Every morning Igot up at four o' clock to milk and 24 the cows． After the milk was bottled, my older brothers andI 25 it to people' s homes． I was paid five cents a bottle． At that time I 26 that to be success-ful you have to take care of your responsibilities．
      When I was 16 ,I signed up for flying lessons． To pay for the lessons I 27 a small restaurantwith some friends． One of our regular 28 was the president of the Farmers Bank． Every 29 Igot,I talked to him about my dream． One day I told him I 30 $3,500 to buy my own  31  ． Helent me the money so that I could fly people within 150 miles of the airport．
Twelve years later I was flying people around the world 32 a pilot of a big airline company．
      After ten years in the company I started my own 33 ．
      Today I run a billion-dollar company, but it was on the farm that I learned the principles(原则)that have 34 me． Hard work and determination do 35 dreams come true．
________
A．Before
B．When
C．Since
D．Though


6、 以下四对直线中，互相平行的是
A．y=3x+4，2x-6y+l=0
B．y=x，3x-3y-10=0
C．3x+4y=5，6x-8y=7
D．x-y-1=0，x+3y+6=0


7、
 


8、依次在横线上填上词语，恰当的一组是（　　）
①近年来，全省对乱收费现象进行了专项治理，加大了查处力度，使之得到了有效__________。 
②然而，当地有关部门仍固执己见，坚持这种破坏历史文化遗产的“旧城改造”，__________  在1998年拆除了遵义会议会址周围的大片历史建筑。
③北京的圆明园，自康熙四十八年起，先后__________     了一百五十多年，荟萃了中外盛景，被誉为“万园之园”。
A．遏制  私自    修建    
B．遏止  擅自    营造
C．遏止  私自    修建
D．遏制  擅自    营造


9、 She __________ some time trying to figure out what they would be doing.
A．cost
B．takes
C．paid
D．spent


填空题
10、 氯水中存在如下平衡：

向氯水中加入少量NaOH溶液，平衡____移动．

责编：cll  评论 纠错