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2016高一下学期期末考试答案

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导读: 2016高一下学期期末考试答案(共7篇)2016高一下学期历史期末试题及答案汇总中国招生考试网为大家整理了2016高一下学期历史期末试题及答案汇总,包括高一下学期历史期末试卷、高一下学期历史期末模拟试题、高一历史下学期期末测试题,非常适合同学们在期末考试之前作为复习资料或者考前测试使用,欢迎下载!更多2016最新各地名校高一下学期历史期末...

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2016高一下学期期末考试答案(一)
2016高一下学期历史期末试题及答案汇总

  中国招生考试网为大家整理了2016高一下学期历史期末试题及答案汇总,包括高一下学期历史期末试卷、高一下学期历史期末模拟试题、高一历史下学期期末测试题,非常适合同学们在期末考试之前作为复习资料或者考前测试使用,欢迎下载!更多2016最新各地名校高一下学期历史期末试题及答案也将在考试结束后更新,敬请期待!
2016高一下学期历史期末试题及答案汇总

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2016高一下学期期末考试答案(二)
2016高一下学期物理期末试题及答案汇总

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2016高一下学期期末考试答案(三)
2016年高一下学期数学期末考试卷带答案

2016年高一下学期数学期末统考试卷

(含参考答案)

(总分:100分 时间:90分钟 2016年6月)

一、填空题(本大题共有12道小题,满分36分。请把正确答案直接填写在答题纸规定的地方,每题3分)

1、函数y1cos2x的最小正周期是.

1的反函数f1x为 . x2

13、若sinx,x,0,则x .(结果用反三角函数表示) 322、函数fx

24、方程2sinx1的解集是. 3

5、函数y2sinxcosx的最大值为x12e,x26、设fx,则ff2的值为. 2logx1,x23

7、在

ABC中,若其面积S222

8、在ABC中,若AB3,ABC75,ACB60,则BC等于. Cxx9、函数ysincos的递增区间是22

10、若fxsin

3x,则f1f2f3f2016sin2122的值为 . 11、已知cos,且是第一象限角,则4413sin4

12、若函数fxcosxsinxx0,2的图像与直线yk有且仅有四个不同的交点,则k的取值范围是

二、选择题(本大题满分12分)本大题共有4题,每题有且只有一个正确答案,考生必须在答题纸的相应编号上,将代表答案的小方格涂黑,选对得3分,否则一律得零分

13、在ABC中,sinAsinBcosAcosB则这个三角形的形状是( )

A. 锐角三角形 B. 钝角三角形 C. 直角三角形 D. 等腰三角形

14、已知函数yloga2ax在1,1上是x的减函数,则a的取值范围是( )

2 D. 2,+ A.0,2 B.1,2 C.1,

15、将函数ysinx的图像上所有的点向右平行移动

10个单位,再把所得各点的横坐标伸

长到原来的2倍(纵坐标不变),所得图像的函数解析式是( ) A.ysin2x B. ysin2x 105

11C. ysinx D. ysinx 102022

16、下列四个函数中,以为最小正周期,且在区间,上为减函数的是( ) 2

1A.ycosx B.y2sinx C.y32cosx D.ycotx

三、解答题(本大题共5道题目,满分52分,请在答题纸规定的地方写出必要的解答过程)

17、(本题满分8分)一扇形的周长为20cm,当扇形的圆心角等于多少时,这个扇形的面积最大?最大面积是多少?

18、(本题满分10分,每小题5分)解下列方程

(1)9x43x30;(2)log3x2101log3x;



19、(本题满分10分,每小题5分)已知04,sin, 25

5sin2sin2(1)求的值;(2)求tan的值. 24coscos2

20、(本题满分10分,第(1)小题4分,第(2)小题6分) 已知函数fx=2cosx+sin2x4cosx

(1)求f的值; 3

(2)求fx的最大值和最小值.

21、(本题满分14分,第(1)小题7分,第(2)小题7分)

2016高一下学期期末考试答案(四)
2016高一英语下学期期末考试题

高一英语

说明: 1. 本试卷分第I卷(选择题)和第II卷(非选择题)两部分, 共 10 页 6大题。

2. 满分120分; 答题时间100分钟。

3. 卷I答案需用2B铅笔填涂到答题卡上相应题号下,卷II答案用黑色水笔、黑色钢

书写到答题卡上。铅笔书写卷II内容不得分。

第I卷 (共90分)

第一部分 听力(本题有两节,共20分)

第一节(共5小题;每小题1分,满分5分)

听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳

选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。

1.Which shirt does Mary prefer ?

A.The blue one. B. The yellow one. C. The white one.

2. What’s wrong with the man ?

A. He has a headache. B. He’s got a running nose. C. He has a stomachache.

3.Where will the man go ?

A. To a restaurant. B. To the kitchen. C. To a store.

【2016高一下学期期末考试答案】

4.When should the speakers leave ?

A. At 7:15. B. At 7:30. C. At 7:40.

5.What is the man doing ?

A. Driving a car. B. Making a dessert. C. Lying in the sun.

第二节(共15小题;每小题1分,满分15分)

听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有5秒钟的时间阅读各个小题,听完后,各小题将给出5秒钟的作答时间。每段对话读两遍。

听下面一段对话,回答第6至第7题。

6. Who is holding a party tonight ?

A. David. B. Nancy. C. Laura.

7. Where is Tom going tonight ?

A. To a pub. B. To a library. C. To a theater.

听下面一段对话,回答第8至第9题。

8. Why does the woman call the man ?

A. To invite him to visit her house.

B. To ask him to help her with the report.

C. To tell him about her delay for the party.

9. What will the woman first do after she finishes her work ?

A. Go home. B. Visit Lisa. C. Go to the party.

听下面一段对话,回答第10至第12题。

10. What language is in the same language family as French ?

A. Korean. B. Russian. C. Arabic.

11. Why do so many students want to take the course ?

A. They’re all history majors.

B. The teacher is very popular.

C. They all speak an Indo-European language.

12. How many students are still waiting to get into the class ?

A. Two. B. Five. C. Ten.

听下面一段对话,回答第13至第16题。

13. What sport does the man like to watch ?

A. Boxing. B. Football. C. Basketball.

14. Where is Manny Pacquiao from ?

A. Thailand. B. Indonesia. C. The Philippines.

15. How do the people of Manny Pacquiao’s country feel about him ?

A. They don’t care about him.

B. They love him like a hero.

C. They think he is a violent person.

16. How many people died in the storm ?

A.Under one thousand. B. About two thousand. C. Over five thousand.

听下面一段独白,回答第17至第20题。

17. In which year did Reservoir Dogs come out ?

A.1992. B. 1994. C. 2012.

18. What does the woman say about Django Unchained ?

A. It made 200 million dollars.

B. It was a hit all over the world.

C. It won five Academy Awards.

19. What does Tarantino do when he writes a story ?

A. He tries to put a lot of jokes in.

B. He will read some novels first.

C. He will think of things he’s heard.

20. Who is the director of Taxi Driver ?

A. Steve McQueen. B. Martin Scorsese. C. Quentin Tarantino.

第二部分:英语知识运用(共两节,满分30分)

第一节 单项填空(共10小题;每小题1分, 满分10分)

从A、B、C及D四个选项中, 选出可以填入空白处的最佳选项。

21. — So you missed the English class this morning.

—_______. I got there five minutes before it finished.

A. Never mind B. Not exactly C. No way D. No problem

22. Personally, there is no such ________ thing as ______ free lunch in the world.

A.a; the B.a; / C./; a D./; /

23. On Double Eleven Day, a large number of women customers couldn’t help being ________ to

buy some low-price products.

A. persuaded B. advised C. requested D. commanded

24. Each day is of _________ importance , no matter how good or bad. There is no moment in life

that doesn’t matter.

A. serious B. regular C. actual D. equal

25. — What about going to see the final competition on Friday night?

— Why not? And I ________ my deskmate with me.

A. would take B. take C. am taking D. have taken

26. Sometimes life is just like a game _________ there are winners as well as losers.

A. that B. where C. when D. which

27. Last month China decided to drop one-child policy as problems of a rapidly growing aging

population have ________ these years.

A. put up B. set up C. come up D. built up

28. It is said that the police have offered a large_____ for information about the robbery last night.

A. award B. reward C. prize D. welfare

29. The government made a request that every minute ________ made use of _______the injured

in the terrorist attack.

A. be; rescuing B. has been; rescuing

C. be; to rescue D. has been; to rescue

30. Was it in this school ______ you struggled for your dreams for 3 years?

A. where B. in which C. that D. which

第二节:完形填空(共20小题;每小题1分,满分20分)

阅读下面短文,掌握其大意,然后从31-50各题所给的四个选项(A、B、C和D)中,

选出最佳选项,并在答题纸上将该选项标号涂黑。

Last year I ruined my summer vacation by bringing along a modern convenience: the iPad.

my【2016高一下学期期末考试答案】

And that was the problem: I was I were still in the office. My body was on

vacation but my head wasn’t.

knew it wouldn’t be easy, since I’m not good at self-control. But I was determined. I started

than in

the past, meaning that I couldn’t cheat. I was

radio —to do all along: read books.

This experience has had ending—for now, at least. With determination and the

strong support of my wife, I succeeded in my vacation the Internet.

realized that it was me, of course, not the iPad, that was the problem.

the Wi-Fi. “Don’t need it,” I said., as we return to post-vacation situation, a test begins:

hope to resist the temptation(诱惑)to check my e-mail every five leads to

following my Twitter feed.

A vacation is supposed to help you reset to become more productive(高效的).

Here’s hoping this one worked.

31. A. received B. wrote C. checked D. recognized

32. A. followed B. ignored C. organized D. founded

33. A. magazines B. newspapers C. journals D. letters

34. A. so that B. as if C. even though D. ever since

35. A. upset B. calm C. crazy D. different

36. A. sending B. handing C. destroying D. burying

37. A. better B. stronger C. less D. worse

38. A. shocked B. trapped C. defeated D. frightened

39. A. set off B. turn off C. put off D. cut off

【2016高一下学期期末考试答案】

40. A. more than B. rather than C. instead of D. except for

41. A. choice B. way C. means D. idea

42. A. meaningless B. hopeful C. happy D. peaceful

43. A. for B. against C. to D. in

44. A. entirely B. frequently C. gradually D. finally

45. A. won B. lost C. suffered D. recovered

46. A. Therefore B. However C. Otherwise D. Anyway

47. A. stop B. escape C. continue D. change

48. A. give up B. give in C. give off D. give away

49. A. that B. which C. when D. who

50. A. body B. heart C. brain D. thought

第三部分:阅读理解 (共20小题;每小题2分,满分40分)

第一节:阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,

并在答题纸上将该选项标号涂黑。

A

When my son was 11 years old, he got a small job helping out with a traveling carnival in our

town. He didn’t come home at lunch time, phoning instead to tell me he was fine and had found a

few days’ work helping out at an exhibit. He turned up for supper as usual however after he

finished work.

I asked him how he had managed at lunch and he told me he had made some new friends at

the carnival, some young men who were twin brothers, and their mom and dad. They had paid him

a few dollars and invited him for lunch in return for helping them set up their exhibit and wanted

him to return the next day to help with other chores (杂务).

I was glad he had found new friends but a little worried about the type of people who might

be traveling in a carnival. "Oh, Mom, these are just normal everyday people like anyone else.

They just work at a carnival instead of in a store or something". "Come down tomorrow and meet

them yourself," he said.

So the next day I went to the carnival and to the exhibit he had directed me to. The twin

brothers turned out to be Siamese (连体的) twins, joined at the chest. He hadn’t thought this fact

was noteworthy enough to mention. When I brought it to him, he said, "Yes, I noticed that too. Do

you know that their mom has to make all their clothes because it’s so difficult to find anything to

fit them? They’re also really good cooks. Today, Joe, the one on the right, made me spaghetti (意

大利面条) for lunch."

What others see first in a person is not what a child considers important. Where I saw

Siamese twins, he saw people having difficulty buying clothes that fit, and young men who were

good cooks. It was a lesson I have thought about many times over the years.

51. From the first paragraph we know that __________.

A. The author’s son could live on his job at the exhibit

52.

53.

54.

55. B. The author’s son disliked meeting his parents at home C. The author’s son usually made his appearance at supper D.The author’s son was good at communicating with others The twin brothers and their parents wanted the author’s son to return the next day mostly because _______. A .they were content with his work B. they needed a worker to do the chores C. they wanted to treat him to lunch D. they wanted him to help the twins with homework The author was worried about the new friends her son made because_______. A. she feared the people at the carnival were not friendly to her son B. her son simply believed in strangers C. she thought people traveling in a carnival were not so reliable D. the carnival was not an occasion for children In the boy’s eyes, the Siamese twins were ________. A. people who had no suitable clothes to wear B. good cooks with strange appearance C. more friendly and kinder than normal people D. just normal people Which proverb may the author agree with according to the last paragraph?

A. Don’t judge a person by his looks. B. It’s never too late to learn.

C. Love me, love my dog. D. It is a matter of opinion.

2016高一下学期期末考试答案(五)
2015-2016学年高一下学期期末考试数学试卷带答案

2015-2016学年第二学期期末教学质量检测

高一数学

本试卷共5页,22小题,满分150分.考试用时120分钟. 注意事项:

1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名和考生号、试室号、座位号填写在答题卡上.

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目选项的答案信息点涂黑;如需改动,用橡皮擦干净后,再选涂其他答案.答案不能答在试卷上.

3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液.不按以上要求作答的答案无效.

4.考生必须保持答题卡的整洁.考试结束后,将试卷和答题卡一并交回. 5.本次考试不允许使用计算器.

一、选择题:本大题共12小题,每小题5分,满分60分.在每小题给出的四个选项中,只有一项是符合题目要求的.

1.已知 aÎR,bÎR,且 a>b,则下列不等式中一定成立的是( )

a1122

A.1 B. ab C.  D. lg(ab)0

b22

2.角a终边过点(1,-2),则 sina=( )

ab

A.

52525

B. C.  D.  5555

3.cos(-

16p

)的值是( ) 3

A.-

11 B.-

C. D.

2 2 2

2

4.若 tana A.

=2,则

sina-cosa

=( )

sina+cosa

1123

B. C. D. 4334

5.在 DABC中, AB=

BC=AC=2,则

( )

A. 2 B. 1 C. 1 D. 2

6.设平面向量a=(1,2),b=(-2,y),若 a//b,则2a-b等于( )

A.4 B. 5 C. 3 D. 45 7.在等差数列an中,a3+a8

{

}

=8,则 S10=( )

1

)的图象,只要把y=cosx的图象上所有的点( ) 32

A.20 B.40 C.60 D.80 8.为了得到函数y=cos(x+

12

p

A.向左平移

p

3

个单位长度 B.向右平移

p

3

个单位长度

C.向左平移

2p2p个单位长度 D.向右平移个单位长度 3 3

9.若关于 x的方程 x2+ax+a2-a-2=0的一根大于1,另一根小于1,则 a的取值范围为( )

A. 0a1 B. a1 C. 1a1 D. a1 10.已知cosa=

A.

æ3öæ12pö

,aÎçp,2p÷,则cosça-÷的值为( ) 134øè2ø è

5272272 B. C. D. 13132626

11. 已知函数yAsin(x)(A0,0,)一个周期的图象(如图1),则这

y

个函数的一个解析式为( )

A.y2sin(3x

) B.y2sin(3x)

263

C. y2sin(3x) D.y2sin(x)

622



12.在实数集R中定义运算“*”,对任意 a,bÎR, a* b为唯一确定的实数,且具有性质:

(1)对任意 aÎR, a* 0= a;

(2) 对任意 a,bÎR, a* b=ab+(a*0)+(b*0);

则函数f(x)=e*

x

1

的最小值为( ) ex

A.2 B.3 C.6 D.8 二、填空题:本大题共4小题,每小题5分,满分20分. 13.不等式 -x2-2x+3>0的解集为;(用区间表示) 14.已知cosa+sina=

1

,则sin2a=2

15.已知x,y为正实数,且 x+y=20,则u=lgx+lgy的最大值为

16.如图2,设 A,B两点在河的两岸,一测量者在 A的同侧,在所在的河岸边选定一点 C,测出 AC的距离为 50m, ÐACB=45o, ÐCAB=105o后,就可以计算出 A,B两点的距离为 m .

图2

三、解答题:本大题共6小题,满分70分,解答须写出文字说明、证明过程和演算步骤. 17.(本小题满分10分)

已知向量a,b满足a=3,b=

a+ba-2b=4.

()()

(1)求 a·b; (2)求a-b.

18.(本小题满分12分)

已知函数f(x)=

1

xcosx-sin2x+.

2

(1)求

(2)求

f(x)的最小正周期值; f(x)的单调递增区间;

(3)求

p

在[0,]上的最值及取最值时x的值. f(x) 2

19.(本小题满分12分)

已知数列an的前n项和为,且Sn

{} {

=n2+n,

(1)求数列an的通项公式;

(2)令bn=3n,求证:数列bn是等比数列.

a

}

{

}

20.(本小题满分12分)

某公司计划在今年内同时出售变频空调机和智能洗衣机,由于这两种产品的市场需求量非常大,有多少就能销售多少,因此该公司要根据实际情况(如资金、劳动力)确定产品的月供应量,以使得总利润达到最大。已知对这两种产品有直接限制的因素是资金和劳动力,

21.(本小题满分12分)

试问:怎样确定两种货物的月供应量,才能使总利润达到最大,最大利润是多少?

在△ABC中,内角 A,B,C所对的边分别是 a,b,c,已知a=2,c=

A=-

。 4

(1)求 sinC和 b的值; (2)求cosç2A+

æè

的值. ÷3ø

22.(本小题满分12分)

已知正数数列an的前n项和为Sn,点Pan,Sn在函数f(x)=

{

}

()

121

x+x上, 已知22【2016高一下学期期末考试答案】

*

3b-2b=0n³2,nÎN,, b=1n-1 1 n

()

(1)求数列an的通项公式; (2)若cn

,求数列{cn}的前 n项和Tn; =anbn

{

}

(3)是否存在整数 m,M,使得m<Tn

<M对任意正整数 n恒成立,且 M-m=9,说明理

由.

2016高一下学期期末考试答案(六)
2015-2016学年高一下学期期末考试数学(文)试题带答案

2015-2016学年第二学期高一期末考试

高一文科数学

注意事项:

1.本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上.

2.回答第Ⅰ卷时,选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑.如需改动,用橡皮擦干净后,再选涂其他答案标号.写在本试卷上无效. 3.回答第Ⅱ卷时,将答案写在答题卡上.写在本试卷上无效. 4.考试结束后,将本试卷和答题卡一并交回.

第I卷 (选择题,共60分)

一、选择题(本大题包括12小题,每小题5分,共60分,每小题给出的四个选项中,只有一项....是符合题目要求的,请将正确选项填涂在答题卡上).

1.已知集合A{x|1x2},B{x|x1},则AB( )

A.(1,1] B.(1,2) C. D.[1,2] 2.直线y2x3与直线ykx5互相垂直,则实数k的值为( )

1

B.2 C.2 D.1 2

1

3.已知等比数列{an}中,各项都是正数,且a1,a3,2a2成等差数列,则该数列的公比为( )

2

A.

A

.1 B

.1 C.1 D.1 4.设ab0,cR,则下列不等式恒成立的是( )

A.acbc B.acbc C.acbc D.5.设等差数列an的前n项和为Sn,若a49,a611,则S9等于( ) A.180 B.90 C.72 D.100 6.将长方体截去一个四棱锥,得到的几何体如图所示,则该几何体的侧视图为( )

2

2

2

2

11 ab

(A)(B)(C)(D)

7.在ABC中,若

sinA

2,则ABC的形状是( )

cosBsinC

A.直角三角形 B.等边三角形 C.等腰三角形 D.不能确定

8.设l、m是两条不同的直线,是一个平面,则下列命题正确的是( ) A.若lm,m,则l B.若l,l//m,则m C.若l//,m,则l//m D.若l//,m//,则l//m

xy10,

22

9.设实数x,y满足约束条件xy10, 则xy2的取值范围是( )

x1,

A.,17

2

1

B.1,17

C.

D.  10.已知函数fxsin2x

32

(xR),下面结论错误的是( ) 

A.函数fx的最小正周期为 B.函数fx是偶函数 C.函数fx的图象关于x

4

对称 D.函数fx在区间0,

2

2【2016高一下学期期末考试答案】



上是增函数 2

11.设m,nR,若直线(m1)x+(n1)y2=0与圆x1y11相切,则m+n的取值范围是( )

A

.[1 B

.(,1) C

.[2 12.在ABC中,C

D

.(,2)

2

,B

6

,AC2,M为AB中点,将ACM沿CM折起,使A,B

【2016高一下学期期末考试答案】

之间的距离为MABC的外接球的表面积为( ) A.12 C.20

B.16 D.32

第Ⅱ卷(非选择题,共90分)

二、填空题(本大题包括4小题,每小题5分,共20分,把正确答案填在答题卡中的横线上). 13.点(1,2)到直线yx的距离是_________.

14.已知关于x的不等式2xmxn0的解集为1,,则mn_________.

2

2



1

15.已知ABC是边长为1的正三角形,动点M在平面ABC内,若AM

AB01,则

的取值范围是

16.函数fx

b

a0,b0的图象形如汉字“囧”,故称其为“囧函数”.下列命题正确的xa

是 .

①“囧函数”的值域为R; ②“囧函数”在0,上单调递增; ③“囧函数”的图象关于y轴对称; ④“囧函数”有两个零点; ⑤“囧函数”的图象与直线ykxbk0的图象至少有一个交点.

三、解答题(本大题包括6小题,共70分,解答应写出文字说明,证明过程或演算步骤). 17.(本小题满分10分)

已知函数fxlgx2lg2x. (Ⅰ)求函数fx的定义域;

(Ⅱ)若不等式fxm有解,求实数m的取值范围.

18.(本小题满分12分)

在中ABC,角A,B,C所对的边分别为a,b,c,且csinBbcosC3. (Ⅰ)求b;

(Ⅱ)若ABC的面积为

19.(本小题满分12分)

21

,求c. 2

如图所示,在正方体ABCDA1B1C1D1中,M是AB上一点,N是A1C的中点,MN⊥平面A1DC.

(Ⅰ)求证:AD1平面A1DC; (Ⅱ)求MN与平面ABCD所成的角.

20.(本小题满分12分)

在等差数列an中,a11,且a1,a2,a5 成公比不为1的等比数列. (Ⅰ)求数列an的公差; (Ⅱ)设bn

21.(本小题满分12分)

如图,平面PAD平面ABCD,ABCD是正

方形,PAD90,且PAAD2,E、F、

1

,求数列bn的前n项和.

anan1

G分别是线段PA、PD、CD的中点.

(1)求异面直线EG、BD所成角的余弦值. (2)求三棱椎EFGC的体积。

22.(本小题满分12分)

B

D

过点O0,0的圆C与直线y2x8相切于点P4,0. (Ⅰ)求圆C的方程;

(Ⅱ)在圆C

上是否存在两点M,N关于直线ykx1对称,且以MN为直径的圆经过原点?若存在,写出直线MN的方程;若不存在,说明理由.

2016高一下学期期末考试答案(七)
2015-2016学年高一第二学期期末考试数学试题带答案

2015~2016学年度第二学期期末考试

高一数学试题

(考试时间:120分钟 总分:160分)

注意事项:所有试题的答案均填写在答题纸上,答案写在试卷上的无效.

1sh,其中s为棱锥的底面积,h为高. 3

一、填空题:(本大题共14小题,每小题5分,共70分.请将答案填入答题纸填空题的相应答题线上.)

1.已知A(1,1),B(2,2),则直线AB的斜率为 . 参考公式:棱锥的体积公式:V棱锥

2.在公差为2的等差数列an中,若a21,则a5的值是

3.若ABC满足:A60,C75

,BCAC的长度为 .

4.已知π,且tan2,则tan的值是 . 4

5.如图,在直三棱柱ABCA1B1C1中,AB3 cm,BC4 cm,CA5 cm,AA16 cm,则四棱锥A1B1BCC1的体积为cm3.

6.在平面直角坐标系xOy中,直线2xay10和直线

(2a1)xy1互相垂直,则实数0a的值是 .

7.已知正实数a,b满足a2b4,则ab的最大值

是 .

8.在平面直角坐标系xOy中,A(1,3),B(4,2),若直线

axy2a0与线段AB有公共点,则实数a的取值范围是

9.已知实数x,y满足:1xy1,1xy1,则2xy的最小值是 .

10.如图,对于正方体ABCDA1B1C1D1,给出下列四个结论:

①直线AC// 平面A1B1C1D1 ②直线AC1// 直线A1B

③直线AC平面DD1B1B ④直线AC1直线BD

其中正确结论的序号为 .

11.在ABC中,角A,B,C的对边分别为a,b,c

,已

πb知sin(C),则角A的值是. 62a

12.在平面直角坐标系xOy中,圆C的方程为(x2)2(y3)29,若过点M(0,3)的直线与圆C交于P,Q两点(其中点P在第二象限),且PMO2PQO,则点Q的横坐标为 .

13.已知各项均为正数的数列{an}满足(2an1an)(an1an1)0(nN),且a1a20,则a1的最大值是 .

14.如图,边长为ab1(a0,b0)的正方形被剖分为9

个矩形,这些矩形的面积如图所示,则

S32S5S7的最小值是 . S2S4S6S8S1S5

二、解答题(本大题共6小题,共90分.解答应写出文字说明、证明过程或演算步骤.)

15.(本题满分14分)

在平面直角坐标系xOy中,直线l:xby3b0.

(1)若直线l与直线xy20平行,求实数b的值;

(2)若b1,A(0,1),点B在直线l上,已知AB的中点在x轴上,求点B的坐标.

16.(本题满分14分)

在ABC中,角A、B、C的对边分别为a、b、c(abc),已知2acosC2ccosAac.

(1)若3c5a,求sinA的值; sinB

(2

)若2csinA0,且ca8,求ABC的面积S.

17.(本题满分14分)

如图,在三棱锥PABC中,平面PAC平面ABC,PAPC,ABBC,点M,N分别为PC,AC的中点.

求证:(1)直线PA //平面BMN;(2)平面PBC平面BMN.

18.(本题满分16分)

如图,某隧道的截面图由矩形ABCD和抛物线型拱顶DEC组成(E为拱顶DEC的最高点),以AB所在直线为x轴,以AB的中点为坐标原点,建立平面直角坐标系xOy,已

1知拱顶DEC的方程为yx26(4x4). 4

(1)求tanAEB的值;

(2)现欲在拱顶上某点P处安装一个交通信息采集装置,为了获得最佳采集效果,需要点P对隧道底AB的张角APB最大,求此时点P到AB的距离.

19.(本题满分16分)

在平面直角坐标系xOy中,圆C的方程为(x4)2y21,且圆C与x轴交于M,N两点,设直线l的方程为ykx (k0).

(1)当直线l与圆C相切时,求直线l的方程;

(2)已知直线l与圆C相交于A,B两点.

(ⅰ)若AB,求实数k的取值范围; (ⅱ)直线AM与直线BN相交于点P,直线AM,直线BN,直线OP的斜率分别为k1,k2,k3, 是否存在常数a,使得k1k2ak3恒成立?若存在,求出a的值;若不存在,说明理由.

20.(本题满分16分)

Sa已知数列an的首项a10,前n项和为Sn.数列n是公差为1的等差数列. 2n

(1)求a6的值; a2

(2)数列bn满足:bn1(1)pnbn2an,其中n,pN*. (ⅰ)若pa11,求数列bn的前4k项的和,kN*;

(ⅱ)当p2时,对所有的正整数n,都有bn1bn,证明:2a122a11b12a11.

2015~2016学年度第二学期期末考试

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