1.选择题- (共5题)
1.
已知二次函数y=ax2+1的图象为抛物线C，过顶点A（0，1）的直线l与抛物线C相交于另外一点P，点Q为抛物线C上另外一点，且点M（0，m）到直线l的距离为1．
（Ⅰ）若直线l的斜率为k，且|k|∈[ ， ]，求实数m的取值范围；
（Ⅱ）当m= +1时，△APQ的内心恰好是点M，求此二次函数的解析式．
2.
已知二次函数y=ax2+1的图象为抛物线C，过顶点A（0，1）的直线l与抛物线C相交于另外一点P，点Q为抛物线C上另外一点，且点M（0，m）到直线l的距离为1．
（Ⅰ）若直线l的斜率为k，且|k|∈[ ， ]，求实数m的取值范围；
（Ⅱ）当m= +1时，△APQ的内心恰好是点M，求此二次函数的解析式．
2.单项选择- (共6题)
6.
The court hears about 120 cases a year; visitors are welcome to see a case ______.
| A．argued | B．to be argued |
| C．to be arguing | D．being argued |
7.
—— He promised to come to see you.
—— But he ＿＿＿＿＿. I’ve been all alone.
—— But he ＿＿＿＿＿. I’ve been all alone.
| A．didn’t | B．wouldn’t | C．hasn’t | D．won’t |
8.
----You haven’t said a word about the design ,Mike. What’s your idea?
----I’m sorry I _______ about something else just now.
----I’m sorry I _______ about something else just now.
| A．am thinking | B．thought | C．was thinking | D．had thought |
9.
If we learn to appreciate _____ is new and different, we will be well-prepared for ____ the future may have in store.
| A．that; whatever | B．what; whatever | C．that; whichever | D．which ; that |
10.
There are two buildings, _______ stands nearly a hundred feet high.
| A．the larger one | B．the larger of them |
| C．the larger one that | D．the larger of which |
试卷分析
-
【1】题量占比
选择题:(5道)
单项选择:(6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：4
7星难题：0
8星难题：2
9星难题：0