7. What is the possible relationship between the speakers?                           

A .Classmates       B. Wife and husband        C. Teacher and student

6. Why does the woman thank the man?                                        

A .He has introduced some teaching methods.

B .He has invited her to travel with him.

C. He his given her some advice.

请听第3段对话回答第7至9题

5. What does the man think of the discussions in ciass?                            

A .They are different from those in China.      B .They are difficult.     C. They are useful.

4. What is the woman doing in Britain                                          

A. Studying  B. Teaching  C. Travelling

3. When does the woman have to work?                                         

A .On Monday          B. On Saturday          C. On Sunday

请听第2段对话回答第4至6题  

2. What does the woman book?                                                  

A. Three bottles of red wine.

B. A table in the general restaurant.

C. A table in a private room without KTV.

1. What is the woman’s office phone number?                                     

A 64649966         B 64642266          C 63322646

（3）若，记（），求数列的通项公式.

2009年浙江省嵊泗中学高三数学调测试卷

证明：（）；

（2）t是满足的正实数，记（），数列的前n项和为，