24. It is required that no smoking ______ in the bus. Please put out your cigarette.

A. was allowed　　　 　　 　　 B. be allowed　 　　

C. would be allowed 　　　　 D. had been allowed

23. -Did she find a well-paid job after graduation?

-______, yes.

A. Eventually　 　　 B. Generally　　 　 C. Unfortunately　 　 D. Purposefully

22. I’m lucky because my job has ______ hours, and I can come and go at any time I want.

A. changing 　　 B. flexible　　 　　 C. basic　 　　 D. moveable

第一节：单项选择(15分)

21. -Is there anything special you’d like for the dinner, Teddy?

-Nothing ______, as usual, Mummy.

A. on the whole 　　B. in particular　　 C. in general　　 　 D. in total

第二节　 听取信息(共5小题，每小题1分，满分5分)

听下面一段独白，请根据题目要求，从所听到的内容中获取必要的信息，填入答题卡标号为16-20的空格中。听录音前，你将有10秒钟的阅题时间，录音读两遍。你将有80秒钟的作答时间。

注释：flunk (考试、测验等)失败，不及格

　 entrepreneur 创业者，企业家

　 queasy 恶心的，欲吐的，紧张不安的

第一节　 听力理解(5段共15小题，每小题1分，满分15分)

每段播放两遍。各段后有几个小题，各段播放前每小题有5秒钟的阅题时间。请根据各段播放内容及其相关小题，在5秒钟内从题中所给的A、B、C项中，选出最佳选项，并在答题卡上将该项涂黑。

听第一段对话，回答第1-3题：

1．What’s the possible relationship between the two speakers?

A．Classmates．　　 B．Brother and sister．　 C．Salesgirl and customer．

2．What are the speakers talking about?

A．The test．　 　　　B．Cheating． 　　　　C．Mr. McQuillan．

3．What do we know about the boy from the conversation?

A．He thinks the girl will get a better grade．

B．He thinks the girl will be caught．

C．He is worried about the girl．

听第二段对话，回答第4-6题：

4．Where do the two speakers live?

A．In San Francisco．　　 B．　 In Orlando．　　 C. In Chicago．

5．What does the woman taking a coach or business class depend on?

A．The service．　　 B．The price．　　 C．The time．

6．Why does the man ask the woman to tell him her decision?

A. He might take train for a trip．

B．He wants to go with the woman．

C．He will go to a friend’s wedding．

听第三段对话，回答第7-9题：

7．How does the speaker plan to attract the investors?

A．By selling goods on the Internet．

B．By developing a good business plan．

C．By changing the way people sell goods．

8．What does the speaker's friend suggest him doing first?

A．Giving an estimate Of sales for a period．

B．Giving investors a competitive advantage．

C．Figuring out a business model．

9．How long does h take the speaker to get ready for the plan?

A．A few months．　　 B．A year．　　 C．A few years．

听第四段对话，回答第10-12题：

10．How many people went to the theme park?

A．Three．　　 B．Four．　　 C．Five．

11．What is the relationship between Maria and Grace?

A．Sisters．　　 B．Sister and brother．　　 C．Mother and son．

12．With who did the speaker take the roller coasters?

A．Maria．　　 B．Grace．　　 C．His brother．

听第五段对话，回答第13-15题：

13．Where does this conversation probably take place?

A．In a restaurant．　　 B．　 In a hospital．　　 C．　 In the Office．

14．When does the woman get a pain in her stomach?

A．About an hour after she has eaten．

B．About an hour before she has eaten．

C．As soon as she begins to eat．

15．What do we know about the woman s husband?

A．He eats very quickly．

B．He doesn't eat as quickly as his wife．

C．He sometimes eats more slowly than his wife．

22.(14分)直线与双曲线交于P、Q两点，

　 (1)求当实数取何值时，_(6分)

　(2)是否存在值，使得以PQ为直径的圆经过原点，若存在，则求出值，

若不存在，则说明理由； (8分)

贵州省清华实验学校09-10学年高二上学期12月月考

21.(14分)如图，已知△ABC中，∠ABC=，PA⊥平面ABC，PC⊥BC,PB与平面ABC成 角，

①求证：平面PBC⊥平面PAC ；

②求二面角A-PB-C的正弦值。

20.(12分) 如图, 在直三棱柱ABC－A₁B₁C₁中，AC＝3，BC＝4，AB=5，AA₁＝4，点D是AB的中点，

　 (I)求证：AC⊥BC₁；

　 (II)求证：AC ₁//平面CDB₁；

18.(10分)正四面体ABCD中，F、E分别是棱的中点，　 求异面直线AF与CE所成的角。

　 19.(10分) 已知∠BOC在平面内，OA是平面的斜线，且∠AOB=∠AOC=60°，OA=OB=OC=a，BC=a，求OA与平面所成的角．