当前位置:文档之家› 【独家】重庆南开中学高2016级高一(上)期末测试数学试题

【独家】重庆南开中学高2016级高一(上)期末测试数学试题

【独家】重庆南开中学高2016级高一(上)期末测试数学试题
【独家】重庆南开中学高2016级高一(上)期末测试数学试题

重庆南开中学高2016级高一(上)期末测试

数学试题

本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,满分150分,考试时间120分钟.

第Ⅰ卷(选择题共50分)

一、选择题(每小题5分,10小题,共50分,每小题只有一个选项符合要求)

1. sin42°cos18° +cos42°sin18° = ( )

A .21!

B .23

C .22

D .23

-

2.下列函数中既是奇函数,又在区间(-1,1)上是增函数的为( )

A .x x e e y -+=

B .||x y = C. x y sin = D. 3x y -=

3.设R ∈?,则“2π

?=”是“R x x x f ∈+=),sin()(?”为偶函数的( )

A .充分不必要条件

B .必要不充分条件

C .充要条件

D .既不充分也不必要条件

4.函数)32sin(3π

-=x y 的单调递减区间是( )

A .Z k k k ∈+-],3,6[ππππ

B .Z k k k ∈++],65,3[π

πππ

C .Z k k k ∈+-],125,12[π

ππ

π D .Z k k k ∈++],1211,125[π

ππ

π

5.函数x x x f 2

ln )(-=的零点所在的区间是( )

A.(1,2)

B.(2,3)

C.(3,4)

D.(e ,+∞)

6.已知a= log 0.34,b =log 43,c =0.3-2,则a ,b ,c 的大小关系是( )

A. c

B. b

C. a

D. a

7.已知21)tan(=+βα,314tan -=??? ??+πα,则=??? ?

?-4tan πβ( ) A. 2 B.2 C. 1 D.

22

8.若函数)sin(2)(?ω+=x x f 的部分图像如下图所示,为

了得到这个函数的图象,只要将)(sin 2R x x y ∈=的图象

上的所有的点( )

A .纵坐标不变,横坐标缩短到原来的

21倍,再向左平移6

π个单位长度 B .纵坐标不变,横坐标伸长到原来的2倍,再向左平移6

π个单位长度 c .纵坐标不变,横坐标缩短到原来的21倍,再向左平移12π个单位长度 D .纵坐标不变,横坐标伸长到原来的2倍,再向左平移12

π个单位长度

9.已知函数f (x )是定义在R 上的偶函数,且f (x +1)为奇函数,若f (2)=1,则

f (1) + f (2) + f (3) + … + f (2014)=( ’ )

A.1

B. 2014

C.0

D. -2014

10.已知A ,B ,C 为锐角△ABC 的三个内角,且sin A =A sin B ,则下列结论正确的是

( )

A. A>C

B. A

C. B>C

D. B

第Ⅱ卷(非选择题,共100分)

二、填空题: (本大题5个小题,每小题5分,共25分)各题答案必须填写在 答题卡Ⅱ上相应位置(只填结果,不写过程)

11.设函数???<+≥=7),2(27,

)(x x f x x x f ,则f (4)= .

12.函数8)32(log +-=x y a 的图象恒过定点A ,且点A 在幂函数f (x )的图象上, 则 f (3)= .

13.函数)2sin(sin )(π+

?=x x x f 的最小正周期是 . 14.关于x 的不等式2cos sin 22>--x a x a 的解集为全体实数,则实数a 的取值范围为 .

15.对于区间[m ,n ],定义n -m 为区间[m ,n ]的长度.若函数)0(12)(2>+-=a x ax x f 在任意长度为2的闭区间上总存在两点x 1,x 2,使1|)()(|21≥-x f x f 成立,则实数a 的最 小值为 .

三、解答题:(本大题6个小题,共75分)各题解答必须答在答题卡Ⅱ上(必

须写出必要的文字说明、演算步骤或推理过程)

16.(本小题满分13分) 已知函数5|32|)(--=x x f 的定义域为集合A ,函数]1)21[(log )(2-=x x g 定义域为集 合B ,求A ∩B

17.(本小题满分13分)

已知角α的终边过点P (x ,-1),(x<0),且x 55cos =

α (1)求αtan 的值;

(2)求απαα

sin )4cos(22cos 1---的值,

18.(本小题满分13分)

已知函数)1(log )(23+-=x ax x f ,其中口a ∈R .

(1)若f (x )的定义域为R ,求实数a 的取值范围;

(2)当a =1时,若)1(log )()(3--=x x f x g ,求g (x )的值域

19.(本小题满分12分) 已知函数x x x x x x f cos sin sin 3)3sin(cos 2)(2++-=π

(1)求函数y =f (x )图象的对称中心;

(2)若01)(2=+-m x f 在]127,6[

ππ有两个相异的实根,求m 的取值范围.

20.(本小题满分12分) 已知函数1

24124)(+++?+=x x x x k x f . (1)当k =2时,求函数f (x )的最大值;

(2)对定义域内的任意x 都有k x f ≤-|1)(|成立,求k 的取值范围.

21.(本小题满分12分)

已知关于x 的函数)34(cos )32(cos cos )(ππ+++

+=x x x x f n n n n ,其中n ∈N * . (1)求)0(n f 和)2

n f ; (2)求证:对任意x ∈R ,)(2x f 为定值;

(3)对任意x ∈R ,是否存在最大的正整数n ,使得函数)(x f y n =为定值?若存在,求出 n 的最大值;若不存在,请说明理由.

重庆南开中学高2018级高一(上)期中考试数学(试题+答案)

重庆南开中学高2018级高一(上)期中考试数学(试题+答案)

重庆南开中学高2018级高一(上)期中考试 数 学 试 题 本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分,满 分150分,考试时间120分钟。 第I 卷(选择题 共60分) 一、选择题(本大题共12个小题,每小题5分,共60分,每小题只有一个选项符合要求) 1.下列说法正确的是( ) A. N ∈-1 B. Q ∈2 C. π?R D. Z ?? 2.已知全集R,U = 集合{}1,2,3,4,5A =,{|2}B x x =∈≥R , 则右图中阴影部分所表示的集合为( ) A. {1} B .{0,1} C .{1,2} D .{0,1,2} 3.给定映射f :()(),2,2x y x y x y →+-,在映射f 下(3,1)的原像为( ) A .(1,3) B .(3,1) C .(1,1) D .(5,5) 4.“2x y +>”是“1>x 且1y >”的( ) A.充分而不必要条件 B.必要而不充分条件 C.充分必要条件 D.既不充分也不必要 条件

( ) A .3(,)2+∞ B .(0,)+∞ C .3 (0,)2 D .3(,3)2 11.已知集合} 0,,,,0|{},032|{22 ≠∈≤++=>--=ac R c b a c bx ax x B x x x A ,若 (] 4,3=B A I ,R B A =Y ,则 22c a a b +的最小值是( ) A .3 B .32 C .1 D .34 12.设集合{|16,}A x x x N =≤≤∈,对于A 的每个非空子集,定义其“交替和”如下:把集合中的数按从大到小的顺序排列,然后从最大的数开始交替地加减各数(如:{1,2,5}的“交替和”是5214-+=,{3}的“交替和”就是3).则集合A 的所有这些“交替和”的总和为( ) A. 128 B. 192 C. 224 D. 256 第Ⅱ卷(非选择题,共90分) 二、填空题:(本大题共4个小题,每小题5分,共20分)各题答案必须填写在答题卡上相应位置(只填结果,不写过程). 13.设2,(2015) ()(5),(2015) x x f x f x x +≤?=? ->? ,则(2018)f = .

2017-2018学年度第一学期高一英语期末试题及答案

2017-2018学年度第一学期第三次质量检测 高一英语试卷 满分:150分时间:120分钟 注意事项: 1.答题前请在答题卡上填写好自己的姓名、班级、考号等信息 2.请将答案正确填写在答题卡上 第一部分阅读理解(共两节,满分40分) 第一节(共15小题;每小题2分,满分30分) A There is an old English saying. It tells us that we must go to bed early and get up early in the morning. Then we shall be healthy. We shall also be rich and clever. This is true. The body must have enough sleep to be healthy. Children of young age should have ten hours’ sleep every night. Children who do not have enough sleep cannot do their work well and they may not be healthy. The body also needs exercise. Walking, running, jumping and playing games are all exercise. Exercise keeps the body strong. Exercise also helps the blood to move around inside the body. Our blood moves to all parts of our body. The head also needs blood. Exercise helps us to think better. ( )1. If we want to be healthy, we must________. A. eat more B. sleep more C. play more D. go to bed early and get up early ( )2. Children of young age should have ______ hours’ sle ep every day. A. ten B. nine C. eleven D. twelve ( )3. If children don’t have enough sleep, they will not________. A. work well B. be clever and healthy C. eat well D. A and B ( ) 4.The body also needs________. A. sports B. running C. exercise D. playing B In Canada you can find dogs,cats,horses,etc.in almost every family.These are their pets.People love these pets and have them as their good friends.Before they keep them in their houses,they take them to animal hospitals to give them injections(注射)so that they won’t carry disease.They have special animal food stores,though they can get animal food in almost every kind of store.Some people spend around two hundred Canadian dollars a month on animal food.When you visit people’s houses,they would be very glad to show you their pets and they are very proud of them.You will also find that almost every family has a bird feeder in their garden. All kinds of birds are welcomed to come and have a good meal.They are free to come and go and nobody is allowed to kill any animal in Canada.They have a law against killing wild animals.If you killed an animal,you would be punished.If an animal happened to get run over by a car,people would be very sad about it. People in Canada have many reasons to like animals.One of them might be:Their family ties are not as close as ours.When children grow up,they leave their parents and start their own life.Then the old will feel lonely.But pets can solve this problem.They can be good friends and never leave them alone. 5.The passage mainly talks about _______. A. how to keep disease from pets B. pets in Canada C. how to take good care of pets D. life of the old in Canada 6.In Canada,children leave their parents when they grow up because _______。 A. they don’t love their parents any more B. they can only find jobs far from their parents C. their parents’ houses are too small D. they wouldn’t depend on their parents any more 7.Which of the following is TRUE? A. People buy animal food only at the animal food stores. B.Pets eat better than people. C. Almost every family has a birdcage in his house. D.Any bird can come to the bird feeders to eat. C Scientists are trying to make the deserts into good land again.They want to bring water to the deserts,so people can live and grow food.They are learning a lot about the deserts.But more and more of the earth is becoming desert all the time.Scientists may not be able to change the desert in time.Why is more and more land becoming desert?Scientists think that people make deserts.People are doing bad things to the earth. Some places on the earth don’t get much rain.But they still don’t become deserts.This is because

重庆市南开中学2019届高三第三次教学质量检测考试数学(理科)试题

重庆市南开中学2019届高三第三次教学质量检测考试数学(理科) 试题 一、单选题 (★) 1 . () A.B.C.D. (★) 2 . 设集合,,则()A.B.C.D. (★) 3 . 等差数列的前7项和为28,,则() A.6B.7C.9D.14 (★) 4 . 若双曲线的一条渐近线方程为,则() A.B.1C.2D.-8 (★★) 5 . 如图,网格纸上小正方形的边长为1,粗线画出的是某几何体的三视图,则该几何体的体积为()

A.42B.45C.46D.48 (★★) 6 . 重庆奉节县柑桔栽培始于汉代,历史悠久.奉节脐橙果皮中厚、脆而易剥,酸甜适度,汁多爽口,余味清香,荣获农业部优质水果、中国国际农业博览会金奖等荣誉.据统计,奉节脐 橙的果实横径(单位:)服从正态分布,则果实横径在的概率为() 附:若,则; ; A.0.6826B.0.8413C.0.8185D.0.9544 (★★) 7 . 设,满足约束条件,则的最小值是() A.4B.5C.8D.9 (★) 8 . 如图,给出的是求的值的一个程序框图,则判断框内填入的条件是() A.B.C.D. (★★) 9 . 记,则 () A.81B.365C.481D.728

(★★) 10 . 已知函数的最小正周期为,且是函数图象的一条对称轴,则的最大值为() A.1B.C.D.2 (★★★★) 11 . 已知函数,若不等式对任意上恒成立,则实数的取值范围为() A.B.C.D. (★★) 12 . 如图,抛物线:,圆:,过焦点的直线从上至下依次交,于点,,,.若,为坐标原点,则() A.-2B.1C.4D. 二、填空题 (★) 13 . 已知向量,且,则实数__________. (★★) 14 . 已知函数,则不等式的解集为__________.

2017年重庆市南开中学小升初招生数学真题卷

2017年重庆市南开中学小升初招生真题卷 (时间:100分钟 满分:120分) 一、计算题(每小题5分,共35分) 1. ????????? ? ?--÷3224.3613922 2. 125.7545.68.0411836?+?+÷ 3. 143199163135115131+++++ 4. 2015 201420142014÷ 5. ?? ? ??-???? ??-???? ??-???? ??-???? ??+???? ??+???? ??+???? ??+???? ??+9117115113111011811611411211 6. 解方程: 612001500=+x x 7. 解方程:x x 312132211=??? ??+- 二、填空题(每小题3分,共30分) 1. 5 4的分数单位是( ),它有( )个这样的分数单位,如果它的分子增加9,要使分数大小不变,那么分子应该增加( )。 2. 已知A=532??, B=7322???, C=5332???,那么A 、B 、C 的最大公因数是

( ),最小公倍数是( )。 3. 在一个减法算式中,差与减数的比是3:5,减数是被减数的( )%。 4. 一堆煤有15吨,先运走它的 31,再运走余下的31,还剩下( )吨。 5. 把2.7 :541化成最简整数比是( )。 6. 50吨比40吨多( )%。 7. 一项工程,甲队单独做12天完成,乙队单独做15天完成,甲、乙两队合作需要 ( )天完成。 8. 在比例中,两个外项互为倒数,其中一个内项是9 8,另外一个内项是( )。 9. 一个正方体的表面积为96平方厘米,若将它平均分成两个长方体,那么分成的一个 长方体的表面积为( )平方厘米。 10. 小明和甲、乙、丙、丁四个同学一起参加象棋比赛,每两人都要比赛一场。到现在 为止,小明已经比赛了4场,甲赛了3场,乙赛了2场,丁赛了1场,那么丙赛了 ( )场。 三、解决问题(每小题5分,共55分) 1. 学校原来有足球和篮球共36个,其中足球和篮球个数之比为7 :2,后来又买进一 些足球,这样使得足球占足球、篮球总数的80%,那么现在学校一共有多少个篮球和 足球? 2. 把100克含盐30%的盐水稀释成含盐24%的盐水,还需要加水多少克?

2017-2018学年高一英语第二学期期末试卷

2017-2018学年高一英语第二学期期末试卷 本试卷共10页,三大题, 满分150分。考试用时120分钟。 注意事项: 1.答卷前,考生首先检查答题卡是否整洁无缺损,监考教师分发的考生信息条形码是否正确;之后务必用0.5毫米黑色字迹的签字笔在答题卡指定位置填写自己的学校、姓名和考生号,同时,将监考教师发放的条形码正向准确粘贴在答题卡的贴条形码 区,请保持条形码整洁、不污损。 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的答案标号涂黑,如需改动,用橡皮擦干净后,再选涂其它答案,答案不能答在试卷上。不按要求填涂的, 答案无效。 3.非选择题必须用0.5毫米黑色字迹的签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上,请注意每题答题空间,预先合理安排;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,将答题卡交回。 第I卷 注意事项: 1.答第I卷前,考生务必将自己的姓名、准考证号填写在答题卡上。 2.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。不能答在本试卷上,否则无效。 第一部分单项选择(共15小题;每小题1分,满分15分) 1. John as well as the other children who _______ no parents _______ good care of

in the village. A. have; is being taken B. have; has taken C. has; is taken D. has; have been taken 2. The number of deaths will be reduced greatly if people _______ to eat more fruit and vitamins. A. persuade B. will persuade C. be persuade D. are persuaded 3. A talk on Chinese history _______ in the school hall next week. A.is given B. has been given C. will be given D. gives 4. — Elisabeth had a birthday party yesterday. Did you go to her party? — No. I ___________. Did you have a good time? A. was not invited B. have not been invited C. hadn’t been invited D. didn’t invite 5. We haven’t heard from Peter for a long time. What __________ to him? A. was happening B. to happen C. has happened D. having happened 6. — Lily is a happy girl, but today she seems in a bad mood. — Something ____________ to her. A. must happen B. should have happened C. could have happened D. must have happened 7. — ___________ you finish your essay in time? — I am afraid ____________. A. Can; can’t B. May; not C. Must; needn’t D. Can; not 8. Doctor Wang _____ at seven o’clock for the conference, but she didn’t turn up.

重庆南开中学初2019级七年级上期末考试数学试卷

重庆南开中学初2019级七年级(上)期末考试 数 学 试 题 卷 (全卷共四个大题,满分100分,考试时间120分钟) 注意事项:1.试题的答案书写在答题卷上,不得在试卷上直接作答. 2.考试结束,试题卷由学生自己保管,监考人员只收答题卷. 一、选择题:(本大题10个小题,每小题2分,共20分)在每个小题的下面,都给出了代号为A 、B 、C 、D 的四个答案,其中只有一个是正确的,请将正确答案的代号填入答题卷中对应的表格内. 1.在﹣3,﹣1,0,2这四个数中,最小的数是 A .﹣3 B .﹣1 C .0 D . 2 2.下列调查方式合适的是 A .为了了解一批电视机的使用寿命,采用普查方式 B .为了了解全国中学生的视力状况,采用普查方式 C .对嫦娥三号卫星零部件的检查,采用抽样调查的方式 D .为了了解人们保护水资源的意识,采用抽样调查的方式 3.右图表示一个由相同小立方块搭成的几何体的俯视图,小正方形中的数字表示该位置上小立方块的个数,那么该几何体的主视图为 4.某班有60名学生,班长把全班学生对周末出游地的意向绘制成了扇形统计图,其中“想去重庆金佛山滑雪的学生数”的扇形圆心角是600,则下列说法正确的是 A .想去重庆金佛山滑雪的学生有12人 B .想去重庆金佛山滑雪的学生肯定最多 C .想去重庆金佛山滑雪的学生占全班学生的 6 1 D .想去重庆金佛山滑雪的学生占全班学生的60% 5.下列计算正确的是 A .x 2+ x 2= x 4 B .x 3·x ·x 4 = x 7 C .a 4·a 4= a 16 D . A ·a 2= a 3 6.下列判断错误..的是 A .多项式5x 2 - 2x + 4是二次三项式 B .单项式4 3 2 c b a 的系数是-1,次数是9 C .式子m +5,ab ,x=1,-2, s v 都是代数式 D.当k=3时,关于x ,y 的代数式(-3kxy + 3y )+(9xy - 8x + 1)中不含二次项 7.小明将前年春节所得的压岁钱买了一个某银行的两年期的理财产品,该理财产品的年回报率为4.5%,银行告知小明今年春节他将得到利息288元,则小明前年春节的压岁钱为 A .6400元 B .3200元 C .2560元 D .1600元 8.如图,已知A 、B 是线段EF 上两点,EA :AB :BF = 1:2:3, M 、N 分别为EA 、BF 的中点,且MN=8cm ,则EF 长 A. 9cm B .10cm C .11cm D .12cm

2017-2018学年度期末考试高一英语试题

2017—2018学年度第一学期期末考试 高一英语试题 第一部分听力 第一节(共5小题;每小题 1.5分,满分7.5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. What's the probable relationship between the two speakers? A. Classmates. B. Colleagues.(同事) C.Teacher and student. 2. What do we know about the man? A. He is going to take exercise. B. He is going to have meetings. C. He is going to clean his shirts. 3. How will the speaker get a ticket to the concert? A. The man will go to buy the ticket. B. The woman will get the ticket. C. The man will have someone buy the ticket. 4.What will the man do? A. Turn in his paper. B.Pay the telephone bill. C.Help the woman. 5. What does the man advise the woman to do? A. Watch the game tomorrow. B. Do the work tonight. C. Enjoy the game tonight. 第二节(共15小题;每小题 1.5分,满分22.5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,你将有时间阅读各个小题,每 小题5秒钟;听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料,回答第6、7题。 6. What had the woman to do first? A. Give her name. B.Do a test. C.Get new books. 7. Where did the woman give her name? A. At the reception. B.At the secretary's. C.In the test room. 听第7段材料,回答第8至10题。 8. What's the probable relationship between the two speakers? A. Guide and tourist. B. Teacher and student. C. Saleswoman and customer. 9. What does the man care most about? A. The type. B. The brand. C. The quality. 10. How many brands are mentioned? A. One. B. Two. C. Three. 听第8段材料,回答第11至14题。 11. Who will pay the bill? A. The man. B. The woman. C. The woman's husband. 12. What does the man order for dessert? A.Ice cream. B.Salad. C.None. 13. What food has a light taste? A. Beijing food. B. Shanghai food. C. Hunan food. 14. What does the man think about Chinese food? A. Very delicious. B. Very spicy. C. Oily. 听第9段材料,回答第15至17题。 15. Why does the woman hate spring in this city? A. It is seldom sunny. B. It seldom rains. C. It is very hot. 16. What does the woman think of climbing mountains? A. Challenging. B. Interesting. C. Tiring. 17. What does the man prefer to do during his summer holiday? ' A. Active activities. . . B. Lying on the beach. C. Staying at home. 听第10段材料,回答第18至20题。 18. Who will give an introduction to the school? A. John Smith. B. The headmaster. C. The Washington major. 19. What are the Chinese students doing in the USA? A. Studying. B. Visiting. C. Performing. 20. What will the Chinese students do on Tuesday evening? A. Visit the lab building and the library. B. Visit the Statue of Liberty. C. Have a party. 第二部分阅读理解(共两节,满分40分) 第一节(每小题2分,共30分)从每题所给的四个选项(A 、B 、C 和 D )中,选出最佳选项. A Monday 8—10a. m. TECHNOLOGY Information Technology (IT)—Using the Internet In this lesson, students learn how to surf the internet safely and effectively. There will also be information about using different search engines. Finally, this lesson teaches students about the best websites to use to continue their education online. 10—12a. m ARTS 10:00a. m. DRAMA Students learn the play that the teacher gave before class. During this lesson,

重庆市南开中学高一数学上学期期末试卷(含解析)

2015-2016学年重庆市南开中学高一(上)期末数学试卷 一.选择题(本大题共12个小题,每小题5分,共60分,每小题只有一个选项符合要求)1.已知集合A={x|2x≤4},B={x|log2x>0},则A∩B=() A.[1,2] B.(1,2] C.(0,1)D.(0,1] 2.“”是“”的()条件. A.充分不必要B.必要不充分 C.充要 D.既不充分也不必要 3.已知一个扇形的周长为10cm,圆心角为2弧度,则这个扇形的面积为()cm2.A.25 B.5 C.D. 4.已知函数,则f(x)的零点所在的区间为() A.(0,1)B.(1,2)C.(2,3)D.(3,4) 5.函数f(x)=lg(﹣x2+x+6)的单调递减区间为() A.B.C.D. 6.将函数y=sinx的图象上的点的横坐标扩大为原来的2倍,纵坐标不变得到图象C1,再将图象C1向右平移个单位得到的图象C2,则图象C2所对应的函数的解析式为()A.B.C. D. 7.若x∈(e﹣1,1),a=lnx,b=,c=e lnx,则a,b,c的大小关系为()A.c>b>a B.b>c>a C.a>b>c D.b>a>c 8.已知α∈(0,π)且,则cosα的值为() A.B.C.D. 9.已知定义在R上的奇函数f(x)满足f(x+4)=f(x)恒成立,且f(1)=1,则f+f A.0 B.1 C.2 D.3

10.化简tan20°+4sin20°的结果为() A.1 B.C.D. 11.如图,圆O与x轴的正半轴的交点为A,点B,C在圆O上,点B的坐标为(﹣1,2),点C位于第一象限,∠AOC=α.若|BC|=,则sin cos+cos2﹣=() A.﹣B.﹣C.D. 12.已知函数,若方程f(x)=a有四个不同的解x1,x2,x3,x4,且x1<x2<x3<x4,则的取值范围为() A.(﹣1,+∞)B.(﹣1,1] C.(﹣∞,1)D.[﹣1,1) 二.填空题:(本大题共4个小题,每小题5分,共20分)各题答案必须填写在答题卡上相应位置(只填结果,不写过程) 13.已知幂函数在(0,+∞)单调递减,则实数m的值 为. 14.计算:= . 15.已知θ∈(0,2π)且,则tanθ的值为. 16.已知函数,若存在实数k使函数f(x)的值域为[0,2],则实数a的取值范围为.

2018-2019学年重庆市南开中学七年级(下)期末数学试卷

2018-2019学年重庆市南开中学七年级(下)期末数学试卷 (考试时间:90分钟 满分:120分 ) 一、选择题(每小题3分,共24分) 1.使分式 24 x x -有意义的x 的取值范围是 (A )2x = (B )2x ≠ (C )2x =- (D )2x ≠- 2.5的算术平方根是 (A )5-. (B )5±. (C )5. (D )5±. 3.下列各数中,在1与2之间的数是 (A )-1. (B )3. (C ) 3 7 . (D )3. 4.一次函数2+=x y 的图象不经过... (A )第一象限 (B ) 第二象限 (C ) 第三象限 (D ) 第四象限 5.如图,△ABC 的两直角边AC =6 cm 、BC =8 cm ,现将该直角三角形折叠,使点B 与点A 重合,折痕为DE .则BE 的长为 (A )4 cm . (B )5 cm . (C )6 cm . (D )10 cm . 6.如图,将AOB △绕点O 逆时针旋转90,得到A OB ''△.若点A 的坐标为()a b ,,则点A '的坐标为 (A )),(a b - (B )),(b a - (C )),(a b - (D )),(b a - 7. 已知点A (1,m )B (2,n )是一次函数22--=x y 图象上的两点,则m 与n 的大小关系是 (A )m > n . (B )m < n . (C )m = n . (D )以上都不对 2 4 A B C D E (第5题) (第6题) (第8题)

8. 如图,在平面直角坐标系中,点P (1 2 -,a )在直线22y x =+与直线24y x =+之间,则a 的取值范围为 (A )1<a <3. (B )2<a <4. (C )1<a <2. (D )0<a <2. 二、填空题(每小题3分,共18分) 9.计算:23-= . 10.若分式 1 3 x x -+的值为0,则x 的值为 . 11.已知正比例函数y kx =的图象经过点(2,6) -,则这个正比例函数的表达式为 . 12.将函数6y x =-的图象向上平移5个单位得到的函数关系式为___________. 13.在平面直角坐标系中,点(2,-1)关于x 轴的对称点的坐标是___________. 14.直线b x y +=2与x 轴的交点坐标是(2,0),则关于x 的方程02=+b x 的解是x = . 三、解答题(本大题共9小题,共78分) 15.(6分)计算:020164+3 8-- 16. (6分)计算:273 1321418-+-

河南郑州市2017-2018高一英语下学期期末试题(附答案)

河南郑州市2017-2018高一英语下学期期末试题(附答案) 第一部分听力(共两节,满分30分)做题时,先将答案标在试卷上。录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。第一节(共5小题;每小题1.5分,满分7.5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. What is Mr. White? A. A salesman. B. A professor. C. A repairman. 2. What does the woman advise the man to do? A. Take Bus 105. B. Ask another person. C. Walk to the railway station. 3. What is the man’s attitude towards the plan? A. He is against it. B. He doesn’t care. C. He thinks it is reasonable. 4. What is the man’s problem? A. He can’t see the sign clearly. B. He has no ticket for the movie. C. He’s parked in the wrong place. 5. In which year is the man in college now? A. The first year. B. The second year. C. The third year. 第二节(共15小题;每小题1.5分,满分22.5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,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。听第6段材料,回答第6、7题。 6. Where does the woman want to go? A. The post office. B. The cinema. C. A park. 7. Who can help the woman? A. The man with a bird. B. The man with a beard. C. The man with a bottle of beer. 听第7段材料,回答第8至10题。 8. Why is Jessie still at home? A. She takes the day off. B. She has enough time to go to work. C. She is waiting for the man to go out together. 9. What does Jessie think of taking the subway? A. Convenient and cheap. B. Crowded and expensive. C. Convenient but expensive. 10. What do we know about Jessie? A. She used to have breakfast in her office. B. Her office is far away from the subway station. C.

重庆南开中学初2015级初三(上)12月数学月考试卷

重庆南开中学初2015级九年级(上)阶段测试(二) 数学试题 2014.12 参考公式:抛物线)0(2 ≠++=a c bx ax y 的顶点坐标为???? ??--a b ac a b 4422,,对称轴为直线a b x 2-= 一、选择题(本大题12个小题,每小题4分,共48分)在每个小题的下面,都给出了代号为 A 、 B 、 C 、 D 的四个答案。其中只有一个是正确的,请将答卷上对应的方框涂黑。 1.上下楼梯时,如果将上3步台阶记为+3,那么下3步台阶应该记为(▲)· A .﹣3 B .3 C .+3 D .0 2.计算()23 x 的结果是(▲)。 A .5x B .6x C .9x D .32x 3.下面的图形中,既是轴对称图形又是中心对称图形的是(▲)。 4.函数x y -=3中,自变量x 的取值范围是(▲)。 A .x ≠3 B .3≥x C .3<x D .3≤x 5.下列调查中,调查方式选择正确的是(▲)。 A .为了了解某品牌手机的屏幕是否耐摔,选择全面调查 B .为了了解玉兔号月球车的零部件质量,选择抽样调查 C .为了了解南开步行街平均每天的人流量,选择抽样调查 D .为了了解中秋节期间重庆市场上的月饼质量,选择全面调查 6.如图,直线m l ∥,将含?45角的三角板ABC 的直角顶点C 放在直线m 上, 若?=∠251,则2∠的度数为(▲)。 A .20° B .25° C .30° D .35° 7.如图,在ABCD 中,E 为CD 上一点,且32::=CE DE ,连结AE 、 BD 相交于点F ,则△DEF 和△ABF 的面积之比为(▲)。 A .2:3 B .4:9 C .2:5 D .4:25 8.分式方程0347=-+x x 的根是(▲)。 A .3-=x B .3=x C .1-=x D . 1=x 9.如图,△ABC 的三个顶点都在 O 上,连结CO 、BO ,已知?=∠55A ,则BCO ∠ 的度数是(▲)。 A .55° B .45° C .35° D .30°

常州市2017学年高一年级(下)期末统考英语试卷

常州市2017学年高一年级(下)期末统考英语试卷 2017年6月 第一卷选择题(共74分) 一、听力(共20小题;每小题1分,满分20分) 略 二、单项选择(共10小题;每小题1分,满分10分) 21. Good news never goes beyond the gate, __________ bad news spreads far and wide. A. when B. as C. while D. before 22. Walking for half an hour every day will help you keep fit. As an added __________, you won’t suffer from lack of sleep. A. favor B. bonus C. award D. promise 23. Chinese web novels enjoy great popularity with many people, among __________ are a large number of foreign readers. A. which B. what C. them D. whom 24. Social media, such as WeChat and Sina Weibo are, as Amazon has reported, __________ readers are encouraged to share reading experiences. A. where B. which C. what D. when 25. He ___________ computer games the whole Sunday morning. I think he should have helped with some cleaning. A. has played B. has been playing C. was playing D. had played 26.--- I’m afraid I won’t have the chance to go to the concert. --- Don’t worry. You ___________ have the ticket for it, I promise you. A. shall B. would C. may D. should 27. Some Olympic sports judged to have become less popular have to __________ new sports which are more popular.

相关主题
文本预览
相关文档 最新文档