4.As I______ the little grass house in
the forest, my heart beat more and more quickly.![]()
A. approached B. walked C.
ran D.
stepped![]()
3.So far, he ________in remembering 2,000
English words.![]()
A. has succeeded B. succeeds C.
succeeded D.
is succeeding![]()
2. -----______in your city now?![]()
-----Very hot at noon but
very cool at night.![]()
A. How is the weather
like
B.
What is the weather like![]()
C. How does the weather look
like D.
What is the weather![]()
第一节:单项填空(共15小题,每题1分,满分15分)![]()
1. I remember seeing this kind of product in _____ city of Shanghai, which
is known as _____ Paris of the East.![]()
A. the; the B.
the; the C. /; the D.
a; /![]()
22、(12分)若动点
在椭圆
上变化,
、
为该椭圆的左右两个焦点,若此椭圆的离心率
。
(1)求该椭圆的标准方程,
(2)求T=
的最大值是多少?
21、(12分)正数数列{an}的前n项和为Sn,且2.
(1) 试求数列{an}的通项公式;
(2)设bn=an·an+1,{bn}的前n项和为Tn,求证:Tn<2.
20、(14分)已知函数
,
,
是常数.
⑴若
,试证明
;
⑵若对
,
恒成立,求常数
的取值范围.
19、(12分)在
ABC中,已知
,
,
,求b及A
18、(12分)已知不等式
的解集为
求不等式
的解集.
17、(12分)已知等差数列{
}中,公差为正数 ![]()
求
和![]()
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com