26. It suddenly_____ to me that I could use a computer to do the job.
A. erupted B. caused C. occurred D. happened
25. Knowledge learnt from books doesn’t have the same effect on a child
as_____through practice.
A. those B. one C. it D. that
24. London is a most beautiful city in Britain, _____ the River Thames.
A. located in B. lied on
C. situated on D. stood in
23. Ryan’s family____ very large and his family____all fond of going hiking.
A. is; are B. are; is C. is; is D. are; are
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,选出可以填入空白处的最佳选项。
21. At that time the US was at_____war with Iraq, and Shirley worked as_____doctor in the army.
A. a; a B. the; a C. /; a D. the; /
pared with 2 million tons last year, our coal output has increased _____
three times; that is to say, our coal output has increased_____8 million tons
this year.
A. to; to B. to; by C. by; by D. by; to
12.函数定义域为D,若满足①在D内是单调函数②存在使在上的值域为,那么就称为“成功函数”,若函数是“成功函数”,则的取值范围为( )
A. B. C. D.
11.如图,已知椭圆的左、右准线分别为、,且分别交轴于、两点,从上一点发出一条光线经过椭圆的左焦点被轴反射后与交于点,若,且,则椭圆的离心率等于( )
A. B.
C. D.
10.设直线与球有且只有一个公共点,从直线出发的两个半平面截球的两个截面圆的半径分别为1和,二面角的平面角为, 则球的表面积为( )
A. B. C. D.
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