6. How does the man feel about the new sofa?

A. It’s a waste of money.　　 B. It’s too expensive.　　　　　 C. It’s a good place to rest.

Conversation 4

5.What does the man think that the woman has been downtown to do?

A. Buy a pair of shoes.　　　 B. Buy a dress for herself.　　　 C. Buy him a dress.

4.What is the man going to do in the afternoon?

A. Get some sleep.　　 　　　 B. Visit the Great Wall.　　　　 C. See a doctor.

Conversation 3

3.What can we know about the woman?

A. She’s a Chinese living in Beijing.　　　 B. She’s a foreign visitor who has just arrived in Beijing.

C. She’s a foreigner who has been staying in Beijing.

2. What advice does the man give to the woman?

A. Talking more with foreign speakers.　　

B. Practicing listening and finding a person to write to.

C. Watching some English programs on TV

Conversation 2

1.What does the woman think is hardest in English?

A. Listening　　　　　　　　 B. Speaking　　　　　　　　　 C. Writing

16．已知函数的最大值为3，的图像的相邻两对称轴间的距离为2，在Y轴上的截距为2.

(Ⅰ)求函数的解析式；(Ⅱ)设数列为其前n项和，求.

15．设命题：函数上的减函数，命题：函数上的值域为为假命题，为真命题，求的取值范围

13．已知椭圆的离心率，则的值等于 　　　　　　

　①“若”类比推出“”

②“若”类比推出

“”

③“若”类比推出“若” ④“若”类比推出“若”

其中类比结论正确的有　　　(填写序号)

12．如图,在中，，是边上一点，，则_________．