6. There are scholarships for chemistry and physics, and you can apply for ________.
A. neither B. either C. any D. all
5. I ________ to get in touch with Tony, my childhood friend, but without success. .
A. adapted B. adopted C. attempted D. appealed
4. -I haven’t got the diploma yet, but I’ll have an interview next month.
-Don’t worry. You ________ have it by Friday.
A. shall B. could C. must D. may
3. Why don’t you oppose his view? If I ________ you, I would.
A. am B. would be C. had been D. were
2. To make China __________ the USA in science and technology, we need more talents.
A. as a strong country as B. strong as a country as
C. as strong a country as D. as stronger as
第一节:单项填空(共20小题,每小题0.5分,满分10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,并在答题纸上将该选项标号涂黑。
1. - Have you heard __________ news that the famous cartoonist Hua Junwu died?
-Yes, it’s __________ great regret to us all.
A. /; the B. the; a C. the; the D./;a
22.
(本小题满分15分)已知直线
与抛物线
:
相交于不同的两点
,直线
分别是抛物线
在点
处的切线,
.若
分别交
轴于
两点,且
,
(1)记点
的横坐标分别为
,试求出
满足的关系式;
(2)求证:
的面积是定值.
温州市2009学年第二学期高二年级期末四校联考
21.(本小题满分15分)设
为实常数,函数
(1)若函数
的图象在点
处的切线的斜率为1,求函数
的单调区间;
(2)若存在
,使
,求
的取值范围.
20. 如图所示,在直角梯形ABCP中,AB=BC=2,AP=6,CD⊥AP,现将
沿折线CD折成直二面角P-CD-A,设E,F,G分别是PD,PC,BC的中点。
(I)求证:PA//平面EFG;
(II)求AF与平面PAD所成角的正弦值。
19.(本小题满分14分)已知等差数列
的前
项和
,
.
(1)求数列
的通项公式;
(2)若
,记数列
的前
项和为
,求使
成立的最小正整数
的值.
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