26. -You can’t imagine ____ fantastic fun web chatting is.
-Really? But it may cause a lot of trouble sometimes.
A. what B. how why D. so
25. -What did the doctor say?
- He said, “ on time, this medicine will be quite effective”.
A. Taking B. Take Taken D. Being taken
24. There is no excuse, , for hurting her feelings.
A. but B. yet although D. though
23. -You look so young. Haven’t you graduated from your university?
-Yes, I in the English Department of Shandong University for four years.
A. studied B. study had studied D. was studying
22. -Is that a book on painting? If so, I want to borrow .
-Yes, it is.
A. this B. it one D. the one
第一节:语法和词汇知识(共15小题;每小题1分,满分15分)
21. -What about shirt she bought for her father?
-It’s wonderful as birthday preset.
A. a; a B. the; a the; 不填 D. a; 不填
22.(本小题满分12分)已知函数.
(Ⅰ)当时,判断函数在定义域上的单调性;
(Ⅱ)若函数与的图象有两个不同的交点,求的取值范围;
(Ⅲ)设点是函数图象上的两点,平行于 的切线以为切点,求证:.
21.(本小题满分12分)
如图,椭圆长轴端点为,为椭圆中心,为椭圆的右焦点,且,.
(1)求椭圆的标准方程;
(2)记椭圆的上顶点为,直线交椭圆于点问:
是否存在直线,使点恰为的垂心?若存在,求出直线的方程;若不存在,请说明理由.
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