I.单项填空(共23小题；每小题1分)

21.(　　　 ) The audience waited until the curtain rose and then_____　 laughter at the sight of the funny actor.

A. burst out　　　 　 B. burst into　　　 C. broken into　　　　　　 D. began with

听下面5段对话，回答1至5题。

1.(　　　 )What does the woman mean?

A.They should dress formally in Rome.

　B.They should be more casual than country people.

try people are usually casual.

2.(　　　 )What are the speakers talking about?

A.Teachers　 B.Studies　 C.Schools.

3.(　　　 )What can we know about the man?

A.He is angry. 　　B.He is disappointed.　 　C.He loses his way.

4.(　　　 )How is the man getting on with his studies?

A.Very well . 　　B.Just so-so . 　C.Badly.

5.(　　　 )Where does the conversation take place?

A.In the classroom　　 　B.In the library 　　　C.On the playground.

听第6段材料，回答第6至7两个小题。

6.(　　　 ) When did the alarm go off?

A.30 minutes ago. 　　B. 25 minutes ago.　 C.5 minutes ago

7.(　　　 )What is the relationship between the speakers?

　A.Brother and sister 　　　B.Boss and secretary 　　　C.Mother and son

听第7段材料，回答第8至9三个小题。

8.(　　　 )What is wrong with the man?

　　　　　 A.He is seriously ill 　　B.He gets tired easily　 C.He loses too mch weight.

9.(　　　 )What does the woman adivise the man to do?

A. Have some physical examination

B.Pay much attention to what his boss says

C.Have his meals on time.

听第8段材料，回答第10至12三个小题。

10.(　　　 )When will the man fetch his suit?

A.On Monday　 　B.On Wednesday.　　　 C.On Thursday.

11.(　　　 )How much does the man pay for washing his shirts

A.10 dollars 　　　　B.20 dollars 　　　C.30 dollars.

12.(　　　 )What can we learn from the conversation?

A.The laundry closes at 7:30 pm on the weekend.

　B.All the buttons on the man’s shirts are loose.

C.The man pays 50 dollars for all his clothes.

听第9段材料，回答第13至16四个小题。

13.(　　　 )Where does the man wait for the woman?

A.In the hall .

B.On the fifth floor

C.In their room.

14.(　　　 )What can we know about the windows of the speakers’ room?

A.They are facing south　 B.They are facing the garden

C.They are facing north..

(　　　 ) 15.How much will the speakers pay for their room totally?

A.280 pounds 　　　B.560 pounds .　　 　C.240 pounds.

16.(　　　 )What does the woman want to do?

A.Take a bath . 　B.Have a good meal.　 C.Go to bed.

听第10段材料，回答第17至20四个小题。

17.(　　　 )What season is the best to visit Spain?

A.Spring . 　B.Summer.　 C.Autumn.

18.(　　　 )Why is train travel becoming more and more popular in Spain?

A.The train speed is improving and fuel is rising.

B.Passengers can enjpy mouth-watering food on the train

C.Passengers can travel longer distances on the train.

19.(　　　 )What are there in the grand class cabin?

　A.Seats, a small table and a shower.

　B.Seats, a small table and toilet things.

C.Seats, a small table and comfortable beds.

20.(　　　 )Which of the following is TRUE according to the talk?

A.The speaker is an environmentalist.

B.The speaker lives in Madrid.

C.The speaker knows a lot about train travel in Spain.

22.(本题满分14分)已知函数

　 (1)若在定义域内的单调性；

　 (2)若的值；

　 (3)若上恒成立，求a的取值范围．

21．(本题满分12分)

某厂生产某种产品的年固定成本为250万元，每生产x千件，需另投入成本为 当年产量不足80千件时，(万元)；当年产量不小于80千件时，(万元)．通过市场分析，若每件售价为500元时，该厂当年生产该产品能全部销售完．

　 (1)写出年利润(万元)关于年产量x(千件)的函数解析式；

　 (2)年产量为多少千件时，该厂在这一产品的生产中所获利润最大，最大利润是多少？

20．(本题满分12分)

已知函数

　 (1)求a，b的值；

　 (2)求的最大值及取得最大值时x的集合；

　 (3)写出函数在[0，]上的单调递减区间．

19．(本题满分12分)

已知△的内角所对的边分别为且.中学

(1) 若, 求的值;高.考.资.

　　 源.网(2) 若△的面积 求的值.中学

18．(本题满分12分)

设条件p：2x²-3x+1≤0，条件q：x²-(2a+1)x+a(a+1)≤0，若是的必要不充分条件，求实数a的去值范围．

17．(本题满分12分)

已知函数

　 (1)求的值；

　 (2)求的最大值和最小值。

16．给出下列命题：

　　　 ①存在实数,使；

　　　 ②存在实数，使；

　　　 ③函数是偶函数；

　　　 ④是函数的一条对称轴方程；

　　　 ⑤若是第一象限的角，且，则；

　　　 其中正确命题的序号是_______________．

15．若___________