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.