1.选择题- (共4题)
1.
已知平面直角坐标系中,曲线C1的参数方程为 (φ为参数),以原点为极点,x轴的正半轴为极轴建立极坐标系,曲线C2的极坐标方程为ρ=2cosθ.
(Ⅰ)求曲线C1的极坐标方程与曲线C2的直角坐标方程;
(Ⅱ)若直线θ= (ρ∈R)与曲线C1交于P,Q两点,求|PQ|的长度.
2.定义在R上的函数f(x)的图象关于y轴对称,且f(x)在[0,+∞)上单调递减,若关于x的不等式f(2mx﹣lnx﹣3)≥2f(3)﹣f(﹣2mx+lnx+3)在x∈[1,3]上恒成立,则实数m的取值范围为( )
3.定义在R上的函数f(x)的图象关于y轴对称,且f(x)在[0,+∞)上单调递减,若关于x的不等式f(2mx﹣lnx﹣3)≥2f(3)﹣f(﹣2mx+lnx+3)在x∈[1,3]上恒成立,则实数m的取值范围为( )
4.定义在R上的函数f(x)的图象关于y轴对称,且f(x)在[0,+∞)上单调递减,若关于x的不等式f(2mx﹣lnx﹣3)≥2f(3)﹣f(﹣2mx+lnx+3)在x∈[1,3]上恒成立,则实数m的取值范围为( )
2.单项选择- (共9题)
5.
With ________ look of disappointment, he left the Student Union office. Without ________ knowledge of photographing, he missed the chance to be an editor of Babel.
A.the, the | B.a, a | C.the, a | D./, the |
6.
--Tom! Did you go to see the film Journey to the Center of the Earth?
--- Yes, but I really _______ , because I had lots of homework to do.
--- Yes, but I really _______ , because I had lots of homework to do.
A.needn’t have | B.mustn’t have |
C.couldn’t have | D.shouldn’t have |
7.
_______ China winning 51 gold medals, the 2008 Olympic Games came to an end.
A.As | B.For | C.Because of | D.With |
8.
Last night I was watching some news about the American financial crises(金融危机) on TV _______ the power went off.
A.while | B.as | C.when | D.during |
9.
The student told me that he _______ the exam _______.
A.has had; yesterday |
B.had; the day before yesterday |
C.had had; the day before |
D.had had; yesterday |
10.
At the end of August, another serious quake in Sichuan , _______ has affected 500,000 people, happened about 30 km southeast of Panzhihua City, near the Sichuan-Yunnan border,
A.that | B.where | C.which | D.What |
11.
—Do you know Jack quarreled with Tom?
—I don't know, .
—I don't know, .
A.so don't I care | B.nor do I care |
C.I don't care neither | D.I don't care also |
试卷分析
-
【1】题量占比
选择题:(4道)
单项选择:(9道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:5
7星难题:0
8星难题:4
9星难题:0