26. He didn’t put the things ______ they belonged, for ______ reason he got his punishment.
A. which; that B. what; this C. that; whose D. where; which
25. Under no circumstances, I was warned, _________ to give the password to someone else.
A. could I B. I could C. I was D. was I
24. Almost everyone has his own strengths and weaknesses. It is ________ others are weak that maybe you have a great advantage.
A. as B. where C. that D. what
23. Located ________ the eastern coast of China, the village is fairly new _______ only a small population of less than 3,000.学
A. off; with B. on; with C. in; of D. on; in
22. For sustainable development, the government has decided to give _______ to those energy-conserving and environment-friendly businesses in many aspects.
A. profit B. interest C. preference D. advantage
第一节:单项填空(共15小题)
从每题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
21. We have every reason to believe that ______ 2010 World Expo in Shanghai will be ______ success.
A. /; a B. the; / C. the; a D. a; a
22.(本题满分14分)
已知数列
中
,且
.
(1)求数列
的通项公式;
(2)令
,求数列
前
项和的公式.
21.(本题满分12分)
已知函数
(
为常数,且
)有极大值9.
(1)求
的值;
(2)若斜率为
的直线是曲线
的切线,求此直线方程.
20.(本题满分12分)
已知关于
的二次函数
.
(1)求证:对于任意
,方程
必有实数根;
(2)若
,求证:方程
在区间
及
上各有一个实数根.
19.(本题满分12分)
(1)在等差数列
中,
,求
及前
项和
;
(2)在等比数列
中,
,求
.
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