17. - Have you found your lost mobile phone?
- No, I haven’t found ___________, but I bought ___________ this morning.
A. one; that B. that; one C. it; one D. one; it
从每小题A、B、C、D四个选项中,选出一个能填入句中空白处的最佳答案。
16. ________Greens are on _________ visit to a beautiful city in China.
A. /, a B. A, the C. The , a D. The, /
(三)录音中有一段对话,听对话两遍后,从每小题A、B、C三个选项中,选出能回答下面每个问题的正确答案。
( ) 11. What are the speakers mainly talking about?
A. Life. B. Camping. C. Plans.
( ) 12. What will the woman do in the city?
A. Work at a store. B. Attend a school. C. Have a picnic.
( ) 13. Who will the woman stay with?
A. The man. B. Her family. C. The man’s brother.
( ) 14. What do they do in the morning when they camp?
A. Go swimming. B. Play basketball. C. Tell stories.
( ) 15. What can we learn from the conversation?
A. The woman has worked for four summers.
B. John is the man’s brother.
C. Summer vacation is coming.
(注意:请同学们翻到第II卷第五大题,继续做听力填表。)
(一)录音中有五个句子。从下面每小题所给的A、B、C三个选项中,选出能应答每个句子的最佳答案。(每个句子仅读一遍)
( ) 1. A. No, you aren’t. B. Yes, it is. C. Sure. Here you are.
( ) 2. A. She works at a restaurant.
B. She works
very hard.![]()
C. She works for eight
hours a day.![]()
( ) 3. A. Yes, we really do. B. Yes, we’ll buy a car. C. Not until the wind stops.
( ) 4. A. Me, too. B. Never mind. C. I'm sorry to hear that.
( ) 5. A. Hold on, please. B. It's very kind of you. C. No, I don't think so.
(二)录音中有五组对话,听对话两遍后,从每小题A、B、C三个选项中,选出能回答下面每个问题的正确答案。
( ) 6. What does the girl want to be when she grows up?
![]()
![]()
![]()
A. B. C.
( ) 7. What was the weather like last Saturday?
A. B. C.
( ) 8. How did the man come to school today?
A. By bike B. On foot C. By bus
( ) 9. Where did Cathy go last Saturday?
A. To the lake. B. To the beach. C. To the park.
( ) 10. What does the boy want to do in this conversation?
A. Buy a pen. B. Change a pen. C. Take a pen.
23.(本题满分18分;第(1)小题5分,第(2)小题5分,第(3)小题8分)
设数列
是等差数列,且公差为
,若数列
中任意(不同)两项之和仍是该数列中的一项,则称该数列是“封闭数列”.
(1)若
,求证:该数列是“封闭数列”;
(2)试判断数列
是否是“封闭数列”,为什么?
(3)设
是数列
的前
项和,若公差
,试问:是否存在这样的“封闭数列”,使
;若存在,求
的通项公式,若不存在,说明理由.
2009学年第二学期徐汇区高三年级数学学科
学 习 能 力 诊 断 卷
22.(本题满分16分;第(1)小题5分,第(2)小题5分,第三小题6分)
已知函数 ![]()
(1)判断并证明
在
上的单调性;
(2)若存在
,使
,则称
为函数
的不动点,现已知该函数有且仅有一个不动点,求
的值;
(3)若
在
上恒成立 , 求
的取值范围.
21.(本题满分16分,第一小题8分;第二小题8分)
已知
是
轴正方向的单位向量,设
=
,
=
,且满足
.
(1)
求点
的轨迹方程;
(2)
过点
的直线
交上述轨迹于
两点,且
,求直线
的方程.
20.(本题满分14分)
求满足
且
的复数
.
19.(本题满分14分)
在
中,
、
、
是
、
、
的对边,已知
,
,
,求
的面积
.
18. 已知
为圆
的两条互相垂直的弦,
交于点
,且
,则四边形
的面积等于----------------------------------------------( )
A 4 B 5 C 6 D 7
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