吉林省长春十一中2014_2015学年高一数学上学期期初试卷(含解析)

吉林省长春十一中2014_2015学年高一数学上学期期初试卷(含解析)
吉林省长春十一中2014_2015学年高一数学上学期期初试卷(含解析)

吉林省长春十一中2014-2015学年高一上学期期初数学试卷

一、选择题(每小题5分,共60分)

1.(5分)集合中含有的元素个数为()

A.4 B.6 C.8 D.12

2.(5分)设集合A={x|x2+x﹣6≤0},集合B为函数y=的定义域,则A∩B()A.(1,2)B.C.

3.(5分)设全集U=R,A={x|x(x﹣2)<0},B={x|y=ln(1﹣x)<0},则图中阴影部分表示的集合为()

A.{x|0<x≤1}B.{x|1≤x<2} C.{x|x≥1}D.{x|x≤1}

4.(5分)设集合,,如果把b﹣a叫做集合{x|a≤x≤b}的“长度”,那么集合M∩N的“长度”是()

A.B.C.D.

5.(5分)下列函数中,满足“f(x+y)=f(x)f(y)”的单调递增函数是()

A.f(x)=x B.f(x)=x3C.f(x)=()x D.f(x)=3x

6.(5分)函数f(x)=是()

A.偶函数,在(0,+∞)是增函数B.奇函数,在(0,+∞)是增函数

C.偶函数,在(0,+∞)是减函数D.奇函数,在(0,+∞)是减函数

7.(5分)已知函数则的值为()

A.B.4 C.2 D.

8.(5分)已知a>0,b>0且ab=1,则函数f(x)=a x与函数g(x)=﹣log b x的图象可能是()

A.B. C.

D.

9.(5分)设函数f(x)=,则满足f(x)≤2的x的取值范围是()

A.B.C.上是增函数,设a=f(log47),b=f(log23),c=f(0.20.6),则a,b,c的大小关系是()

A.c<b<a B.b<c<a C.b<a<c D.a<b<c

11.(5分)设函数f(x)=,若f(x)的值域为R,则常数a的取值范围是

()

A.(﹣∞,﹣1]∪C.(﹣∞,﹣2]∪

12.(5分)若函数y=log a(x2﹣ax+1)有最小值,则a的取值范围是()

A.0<a<1 B.0<a<2,a≠1C.1<a<2 D.a≥2

二、填空题(每小题4分,共16分)

13.(4分)已知a=,函数f(x)=a x,若实数m,n满足f(m)>f(n),则m,n 的大小关系为.

14.(4分)若函数f(x)=的图象关于原点对称,则a=.

15.(4分)函数f(x)=log(2x2﹣3x+1)的增区间是.

16.(4分)已知函数f(x)是定义在R上的奇函数,且当x>0时,,则f(﹣2+log35)=.

三.解答题:(本大题共4小题,共44分)

17.(10分)已知A={x|<3x<9},B={x|log2x>0}.

(Ⅰ)求A∩B和A∪B;

(Ⅱ)定义A﹣B={x|x∈A且x?B},求A﹣B和B﹣A.

18.(10分)已知二次函数f(x)满足条件f(0)=1和f(x+1)﹣f(x)=2x.

(1)求f(x);

(2)求f(x)在区间上的最大值和最小值.

19.(12分)已知a>0且a≠1,函数f(x)=log a(x﹣1),g(x)=log(3﹣x)

(1)若h(x)=f(x)﹣g(x),求函数h(x)的值域;

(2)利用对数函数单调性讨论不等式f(x)+g(x)≥0中x的取值范围.

20.(12分)已知函数f(x)=()x,x∈,函数g(x)=f2(x)﹣2af(x)+3的最小值

为h(a).

(1)求h(a)的解析式;

(2)是否存在实数m,n同时满足下列两个条件:①m>n>3;②当h(a)的定义域为时,值域为?若存在,求出m,n的值;若不存在,请说明理由.

吉林省长春十一中2014-2015学年高一上学期期初数学试卷

参考答案与试题解析

一、选择题(每小题5分,共60分)

1.(5分)集合中含有的元素个数为()

A.4 B.6 C.8 D.12

考点:集合的确定性、互异性、无序性.

专题:计算题.

分析:根据题意,集合中的元素满足x是正整数,且是整数.由此列出x与对应值的表格,根据该表格即可得到题中集合元素的个数.

解答:解:由题意,集合{}中的元素满足

x是正整数,且是整数,由此列出下表

根据表格,可得符合条件的x共有6个,即集合{}中有6个元素

故选:B

点评:本题给出集合{},求集合中元素的个数,着重考查了集合元素的性质和用大写字母表示数集等知识,属于基础题.

2.(5分)设集合A={x|x2+x﹣6≤0},集合B为函数y=的定义域,则A∩B()A.(1,2)B.C.

考点:交集及其运算;函数的定义域及其求法.

专题:集合.

分析:根据函数成立的条件,求出函数的定义域B,根据不等式的性质求出集合A,然后根据交集的定义即可得到结论.

解答:解:A={x|x2+x﹣6≤0}={x|﹣3≤x≤2}=,

要使函数y=有意义,则x﹣1>0,即x>1,

∴函数的定义域B=(1,+∞),

则A∩B=(1,2],

故选:D.

点评:本题主要考查集合的基本运算,利用函数成立的条件求出函数的定义域y以及利用不等式的解法求出集合A是解决本题的关键,比较基础.

3.(5分)设全集U=R,A={x|x(x﹣2)<0},B={x|y=ln(1﹣x)<0},则图中阴影部分表示的集合为()

A.{x|0<x≤1}B.{x|1≤x<2} C.{x|x≥1}D.{x|x≤1}

考点:Venn图表达集合的关系及运算.

专题:集合.

分析:由图象可知阴影部分对应的集合为A∩(?U B),然后根据集合的基本运算求解即可.解答:解:由Venn图可知阴影部分对应的集合为A∩(?U B),

∵A={x|x(x﹣2)<0}={x|0<x<2},B={x|y=ln(1﹣x)<0}={x|1﹣x>0}={x|x<1},∴?U B={x|x≥1},

即A∩(?U B)={x|1≤x<2}

故选:B.

点评:本题主要考查集合的基本运算,利用图象先确定集合关系是解决本题的关键,比较基础.

4.(5分)设集合,,如果把b﹣a叫做集合{x|a≤x≤b}的“长度”,那么集合M∩N的“长度”是()

A.B.C.D.

考点:集合的含义.

专题:新定义.

分析:根据所给的集合的表示形式,求出两个集合的交集.根据所给的新定义,写出集合的长度,即把不等式的两个端点相减.

解答:解:∵,

∴集合M∩N=,

∵b﹣a叫做集合x|a≤x≤b}的“长度”,

∴集合M∩N的“长度”是

故选A.

点评:本题考查集合的含义,本题解题的关键是看清楚什么叫集合的长度,本题是一个基础题,注意简单数字的运算不要出错.

5.(5分)下列函数中,满足“f(x+y)=f(x)f(y)”的单调递增函数是()

A.f(x)=x B.f(x)=x3C.f(x)=()x D.f(x)=3x

考点:抽象函数及其应用.

专题:函数的性质及应用.

分析:对选项一一加以判断,先判断是否满足f(x+y)=f(x)f(y),然后考虑函数的单调性,即可得到答案.

解答:解:A.f(x)=,f(y)=,f(x+y)=,不满足f(x+y)=f(x)f(y),故A错;

B.f(x)=x3,f(y)=y3,f(x+y)=(x+y)3,不满足f(x+y)=f(x)f(y),故B错;C.f(x)=,f(y)=,f(x+y)=,满足f(x+y)=f(x)f (y),但f(x)在R上是单调减函数,故C错.

D.f(x)=3x,f(y)=3y,f(x+y)=3x+y,满足f(x+y)=f(x)f(y),且f(x)在R上是单调增函数,故D正确;

故选D.

点评:本题主要考查抽象函数的具体模型,同时考查幂函数和指数函数的单调性,是一道基础题.

6.(5分)函数f(x)=是()

A.偶函数,在(0,+∞)是增函数B.奇函数,在(0,+∞)是增函数

C.偶函数,在(0,+∞)是减函数D.奇函数,在(0,+∞)是减函数

考点:函数奇偶性的判断;函数单调性的判断与证明.

专题:函数的性质及应用.

分析:判断函数的定义域为R,然后利用定义判断f(x)与f(﹣x)的关系,利用2x的单调性判断f(x)单调性.

解答:解:f(x)的定义域为R,

f(﹣x)==﹣f(x),

则函数f(x)为奇函数;

又y=2x为增函数,y=﹣2﹣x为增函数,

∴f(x)为增函数;

故选B.

点评:本题考查了函数奇偶性的判定以及单调性的判定.

7.(5分)已知函数则的值为()

A.B.4 C.2 D.

考点:函数的值.

专题:函数的性质及应用.

分析:利用分段函数的性质求解.

解答:解:∵函数,

∴f()==﹣3,

=f(﹣3)=2﹣3=.

故选:A.

点评:本题考查函数值的求法,是基础题,解题时要认真审题.

8.(5分)已知a>0,b>0且ab=1,则函数f(x)=a x与函数g(x)=﹣log b x的图象可能是()

A.B. C.

D.

考点:对数函数的图像与性质;指数函数的图像与性质.

专题:常规题型;数形结合.

分析:由条件ab=1化简g(x)的解析式,结合指数函数、对数函数的性质可得正确答案解答:解:∵ab=1,且a>0,b>0

所以f(x)与g(x)的底数相同,单调性相同

故选B

点评:本题考查指数函数与对数函数的图象,以及对数运算,属中档题

9.(5分)设函数f(x)=,则满足f(x)≤2的x的取值范围是()

A.B.C.

10.(5分)已知f(x)是定义在R上的偶函数,且在(﹣∞,0]上是增函数,设a=f(log47),b=f(log23),c=f(0.20.6),则a,b,c的大小关系是()

A.c<b<a B.b<c<a C.b<a<c D.a<b<c

考点:奇偶性与单调性的综合;对数值大小的比较.

专题:综合题;函数的性质及应用.

分析:由f(x)是定义在R上的偶函数,且在(﹣∞,0]上是增函数,可得出自变量的绝对值越小,函数值越大,由此问题转化为比较自变量的大小,问题即可解决.

解答:解:f(x)是定义在R上的偶函数,且在(﹣∞,0]上是增函数,要得函数在(0,+∞)上是减函数,

吉林省长春外国语学校高三第一次月考

20XX年中学测试 中 学 试 题 试 卷 科目: 年级: 考点: 监考老师: 日期:

20XX届吉林省长春外国语学校高三第一次月考 英语试卷(1-5单元) I.语音知识(共5 小题;每小题1 分,满分5 分) 1. sacred A. returned B. increased C. disappointedD. discussed 2. blank A. change B. twentieth C. January D. distinguish 3. cosy A. houses B. expense C. horses D. Asian 4. attachA. moustache B. machine C. stomachD. achieve 5. growth A. altogether B. breathe C. wealth D. therefore II.语法和词汇知识(共15小题;每小题1分,满分15分) 6. ——Will_____ sofa do? ——Sure. But if you haven’t, _____chair is OK. There are some at hand. A. the; a B. a; the C. a; a D. the; the 7.The beggar had nothing to do but _____ in the street all night. A. wander B. to walk C. wandering D. walking 8.Police will be _____ trouble-makers at today’s match. A. looked out for B. looking out for C. looked out at D. looking out at 9.It was only when I read the story for a second time _____ to appreciate its beauty. A. did I begin B. that I began C. then I began D. had I begun 10.To some people, th e SaharaDesert is _____ “ the sea of death”. A. what we call B. that we call C. we call it D. which is called 11.——Where did you meet him? ——It was in the hotel _____ I was staying. A. that B. when C. where D. which 12.Michael never dreamt of _____ for him to be sent abroad very soon. A. being a chance B.there is a chance C. there being a chance D. there to be a chance 13.——What does the sign over there read? ——“No person _____smoke or carry a lighted cigarette, cigar or pipe in this area.

福建莆田一中2021届高三数学上学期期末理试卷

莆田一中2020-2021学年上学期期末试卷高三数学(理科) 一、选择题:(本大题共10个小题,每小题5分,共50分;每题只有一个正确答案) 1. 函数f(x)=23x x +的零点所在的一个区间是( ) (A)(-2,-1) (B)(-1,0) (C)(0,1) (D)(1,2) 2. 设{a n }是由正数组成的等比数列,n S 为其前n 项和。已知a 2a 4=1, 37S =, 则5S =( ) (A )152 (B)314 (C)334 (D)17 2 3. 设点M 是线段BC 的中点,点A 在直线BC 外,2 16,BC AB AC AB AC =∣+∣=∣-∣, 则AM ∣∣=( ) (A )8 (B )4 (C ) 2 (D )1 4. 设椭圆以正方形的两个顶点为焦点且过另外两个顶点,那么此椭圆的离心率为( ) (A) 21- (B) 2 2 (C) 512- (D) 2 2 或21- 5. E ,F 是等腰直角△ABC 斜边AB 上的三等分点,则tan ECF ∠=( ) (A) 1627 (B)23 (C) 33 (D) 3 4

6.某产品的广告费用x 与销售额y 的统计数据如下表 广告费用x (万 元) 4 2 3 5 销售额y (万元) 49 26 39 54 根据上表可得回归方程???y bx a =+中的?b 为9,据此模型预报广告费用为6万元时销售额为( ) A .63.5万元 B .64.5万元 C .67.5万元 D .71.5万元 7.在ABC ?中,下列说法不正确的是( ) (A) sin sin A B >是a b >的充要条件 (B) cos cos A B >是A B <的充要条件 (C) 222a b c +<的必要不充分条件是ABC ?为钝角三角形 (D) 222a b c +>是ABC ?为锐角三角形的充分不必要条件 8.将一骰子连续抛掷三次,它落地时向上的点数依次.. 成等差数列的概率为( ) A.1 9 B. 112 C. 115 D. 118 9. 已知1F 、2F 为双曲线C:221x y -=的左、右焦点,点P 在C 上,∠1F P 2F =060,则P 到x 轴的距离为( ) (A) 32 (B)6 2 (C) 3 (D) 6 10. 直线:y= 3 33 x +与圆心为D 的圆:22(3)(1)3x y -+-=交于A 、B 两点,则直线AD 与BD 的倾斜角之和为( )

2017年吉林市中考英语试题与答案

1 2017年吉林市中考英语试题与答案 (试卷满分120分,考试时间120分钟) 一、听力(共20分) I .情景反应 根据你所听到的句子,选择恰当的应答语。(5分) 1. A. Good afternoon, Mr. Li. B.Good evening, Mr. Li. C.Good morning, Mr. Li. 2. A. It's fast. B.lt's 9 0' clock. C.It's your watch. 3. A.I have a cold. B.I'm laura. C.I can dance. 4. A. He is tall. B.He is cute. C.He is 11 years old. 5. A. Twice a week. B.For two weeks. C.In two weeks. Ⅱ.对话问答 根据你所听到的对话及问题,选择正确答案。(5分) 6. A. Country music. B.Pop music. C.Rock music. 7. A. Wilndy. B.Snowy. C.Sunny. 8. A. His son. B.His daughter. C.His cousin. 9. A. Next to the park. B.Across from the park. C.In front o f the park. 10.A.On foot. B.By car. C.By bus. Ⅲ.图片理解 看图听描述,选择与你所听到的描述内容相符合的选项。(下列图中有一幅图片与描述内容无关)(5分) __11__ __12__ __13__ __14__ __15__ Ⅳ.短文理解 根据你所听到的短文内容,选择正确答案。(5分) 16. When will Mike leave school?

2020-2021学年吉林省长春市九年级中考英语模拟试卷含答案

吉林省 九年级中考英语模拟试卷 (满分;120分 考试时间;120分钟) 第一卷 (选择题 共55分) I. 单项选择(共15小题;每小题1分,满分15分) 从A. B. C. D 四个选项中,选出可以填在空白处的正确答案。 ( )1.“____ universe is nice and beautiful,” Jack said after____special trip A. The; a B. An; a C. The; the D. /; the ( )2. About ____ of the population in the country ____ farmers. A. three-fifth; are B. three-fifth; is C. three-five; is D. three-fifths; are ( )3. The song I Believe I Can Fly tells us that believing in____ is very important. A. themselves B. yourselves C. itself D. ourselves ( )4.If the customers rings up for me again, please ____ the call to the sales department. A. run through B. look through C. go through D. put through ( )5.According to the new traffic laws, people ____ drive after drinking wine or beer. A. wouldn ’t B. couldn ’t C.needn ’t D. mustn ’t ( )6.----_____is it from the part to the old city center? ----Less than 30 minutes by underground. A. How soon B. How often C. How long D. How far ( )7.The soup my father cooked _____ bad now. Let ’s throw it away. A. smells terribly B. is smelt terribly C. smelt terrible D. was smelt terrible ( )8.I will never forget the people and things ____ I saw on the Great Wall. A. that B. which C. who D. what ( )9. Many children ____ your age are always ____ a good mood to do the things they ’re interested in. A. at; in B. of; in C. at; on D. of. With ( )10.The old radio requires_____, so you ’d better have it _____ soon. A. to repair; repaired B. repairing; repaired C. repairing; repair D. repaired,repair ( )11._____ Mr. Zhou_____ Mr. Li is humorous. They are popular among us students. A. Both; and B. Neither; nor C. Either; or D. Not only; but also ( )12.------If I work hard at my lessons from now on, can I do well in them? ------______ A. All rivers run into sea B. Every day is not Sunday C. Better late than never D. Practice makes perfect ( )13. The scenery on Mount Huang is _____. I ’m really______ at its beauty. A. amazing; amazed B. amazed; amazed C. amazed; amazing D. amazing; amazed ( )14. Birds hardly build nests in our garden,_______? A. don ’t they B. do they C. didn ’t one D. did me ( )15. The shop in Wanda Plaza_____ for five years, but I _____ there so far. A. has opened; haven ’t gone B. has been open; haven ’t been C. has been open; haven ’t gone D. has opened; haven ’t open II. 完型填空(共15小题,每小题1分,满分15分) 阅读下面短文,掌握其大意,然后从各题所给出的四个选项中选出一个最佳答案) ……………密…封……线…内……不…准…答…题…… 姓名____ 年级____ ………密……………封…………线……………内……………不…………准……………答……………题…………………… 姓名____________ 年级________

吉林省中考英语模拟试题及答案

吉林省中考英语模拟试题及答案 一、听力部分(略) 二、基础知识 乜根据句意和首字母填空。 1 Look at the s on the wall. It says No parking! So you mustn't smoke here. 2 The new car might b to Tom. I heard his father bought it for him yesterday. 3 I am going to buy my mother a gift b her birthday is two weeks from now. 4 His family is even r now because his father makes more money than before. 5 Can you give me some a on how to learn English well ? It's difficult for me to study it. VD 根据句意,从方框内选岀适当的词完成下列各句。 (注意词形变化) popular twelve write say you 1 Look at my computer. It is as big as . 2 Mr Cooper didn't finish the book until last Sunday. 3 When they met again, they were too excited a word. in your school? floor. The air is quite fresh there. ( )1 Ted, take some to school, it's so hot and you may feel thirsty. A bread B bananas C oranges D juice ( )2 Which would you like, tea, milk or coffee? --- is OK. I really don't mind. A Both B Either ( )3 I like the party so much, but I ---- What a pity! A mustn't B have to ( )4 If you are quiet and often tired, you should eat ( )5 The boy showed English when he began to learn it, so he liked to A interested, say B interest in, say C interest in, speak D interested in, speak ( )6 I hope you don't mind my pointing out your mistakes. A .Of course B. Not at all. C .You're welcome. D. Yes, I don't. ( )7 Carmen likes musicians different kinds of music. A which play B who plays C which plays D who play ( )8 Although he loves junk food, he tries to only once a month. A / , eat it B but, eat them C / , eat them D but, eat it ( )9 ------- Oh, Mrs. King, your dress looks nice. Is it new? 4 Which subject is 5 I live on W 选择填空 C Any D None go home, It's too late. C may D can't A tofu B bean sprouts C yin foods D yang foods it.

2020届吉林省中考英语模拟试题有答案(word版)

吉林省初中毕业生学业考试英语试题 注意事项: 1、答题前,考生务必将自己的姓名、准考证号填写在答题卡上,并将条形码准确粘贴在条形码区域内。 2、答题时,考生务必按照考试要求在答题卡上的指定区域内作答,在草稿纸、试题上答题无效。 一、听力(共20分) Ⅰ、情景反应根据你所听到的句子,选择适当的答语。(5分) 1、A.You’re welcome B.Thank you C.I’m fine 2、A.Red B.Math C.Spring 3、A.On foot B.About 5 kilometers C.At 6:30 4、A.Sorry, I won’t B.Yes, I did C.It doesn’t matter 5、A.It’s crowded B.It’s delicious C.It’s boring Ⅱ、对话问答根据你所听到的对话及问题,选择正确答案。(5分) 6、A.Stay at home B.Visit his uncle C.Join a club 7、A.$500 B.$50 C.$150 8、A.His son B.His mother C.His wife 9、A.It’s sunny B.It’s rainy C.It’s cloudy 10、A.In the room B.Under the tree C.Behind the door Ⅲ、图片理解看图听描述,选择与你所听到的描述内容相符合的选项。(下列图中有一幅图片与描述内容无关)(5分) ____11____ ____12____ ____13____ ____14____ ____15____ Ⅳ、短文理解根据你所听到的短文内容,选择正确答案。(5分) 16、Mrs. Nikko is a 110-year-old woman from _________. A.America B.Japan C.Canada 17、Mrs. Nikko sleeps ________ hours a night. A.7 B.8 C.9 18、Mrs. Nikko goes swimming at the nearby beach ________. A.every morning B.every afternoon C.every evening 19、When the weather is fine, Mrs. Nikko also goes fishing with her ________. A.sons B.daughters C.grandchildren 20、For the evening meal, Mrs. Nikko usually has ________,vegetables, rice and some soup. A.fish B.tomatoes C.chicken 二、基础知识(共20分) Ⅴ、句意填空根据所给句子,填入一个适当的单词,使句意完整。(5分) 21、Children’s Day is in June, the _____________ month of a year. 22、He was very excited to buy a _____________ to that basketball game. 23、I often ____________ to some smooth music to relax before going to bed. 24、Passengers are waiting _____________ the bus at the station.

2018年吉林省长春市中考英语试卷

2018年吉林省长春市中考英语试卷 一、基础知识(共25分)I.在下列各句的空白处填入一个适当的词,使句子意 思完整,语法正确.(5分) 1.(1分)y sster learned o kteby obodyhelped her. 2.(1分)These studentalys sin nEnglish beoreclas. 3.(1分)We caneasilyknow what he weae s o ousmart phones. 4.(1分)f y re helpful,yu can on wll wih eryoneroundyou. 5.(1分)Theshap of the bakbal is.hat maesit easy to pas nthrw. II.用括号内所给单词的正确形式填空.(5分) 6.(1分)t is(olite)to talk oudl ipublic lces lik a libar. 7.(1分)L Fang ison fte most beautiul(techi ur country. 8.(1分)Doing heork(carefu)is a good ai adi help a lot. 9.(1分)Am prctices(pla the piano for over o hoseer day. 10.(1分)Russi is hoig the tny﹣one)IFA WORLD CUP nw. III.单项选择.(15分)从每小题所给的四个选项中,选出一个最佳答案.11.(1分)I enjoy having ____ brakfast with y family athm.Itaes e eel relaxed)A.a B.an C.the D./ 12.(1分)Nwaday ter _______more heroes in na.We adir thema lot.()A.is B.are C.was D.wre 13.(1分)The sky is mu br_______we ae taen actin o proec the environent.()A.bcause B.bfore C.unil D.unlss 14.(1分)Ly,do you want tojointher club o he hess club? _______.like drawing piture() A.Ys,I do B.he ar club C.No,I n't D.The ces clb 15.(1分)Mylitle boter is ady boy.alwys kes hisroo ________.()

【全国百强校】吉林省长春外国语学校2017-2018学七年级下学期期末考试数学试题

【全国百强校】吉林省长春外国语学校2017-2018学七年级下学期期末考试数学试题 学校_________ 班级__________ 姓名__________ 学号__________ 一、单选题 1. 方程的解是() A.B.C.D. 2. 方程组的解是() A.B.C.D. 3. 不等式的解集是() A.B.C.D. 4. 下列图形既是轴对称图形,又是中心对称图形的是() A.B. C. D. 5. 下列计算正确的是(). A.B.C.D. 6. 已知,则的值(). A.2 B.3 C.6 D.4

7. 若与是正数的两个平方根,则的立方根为 (). A.2 B.±2C.D.4 8. 如图,在△ABC中,∠CAB=65°,将△ABC在平面内绕点A旋转到△AB'C'的位置.若∠CAB'=25°则∠ACC'的度数为() A.25°B.40°C.65°D.70° 二、填空题 9. 因式分解:__________. 10. 计算:= __________. 11. 已知三角形的三边长分别为3、a、5,那么a的取值范围是 ____________. 12. 如图,在△ABC中,∠B=90°,AB=10.将△ABC沿着BC的方向平移至 △DEF,若平移的距离是4,则图中阴影部分图形的面积为 __________. 13. 如图,已知△ACE≌△DBF,CE=BF,AE=DF,AD=8,BC=2,则AC=______.

14. 如图,在△ABC中,点D是BC边上的一点,∠B=48°,∠BAD=28°,将 △ABD沿AD折叠得到△AED,AE与BC交于点F,则 ∠AFC=_______________°. 三、解答题 15. 计算:(1) ;(2). 16. 将下列各式因式分解:(1) ; (2) . 17. 若,求的值. 18. 甲、乙两人从相距26千米的两地同时相向而行,甲每小时走3.5千米,4小时后两人相遇,求乙行走的速度. 19. 已知,一个多边形的每一个外角都是它相邻的内角的.试求出:(1)这个多边形的每一个外角的度数;(2)求这个多边形的内角和. 20. 如图,在△ABC中,∠B=40°,∠C=80°,AD是BC边上的高,AE平分 ∠BAC, (1)求∠BAE的度数;(2)求∠DAE的度数.

2019吉林省中考英语真题及答案word版

吉林省2019年初中毕业生学业水平考试 英语试题 英语试题共8页,包括五道大题。全卷满分120分,考试时间为120分钟。其中听力部分满分20分,考试时间为20分钟。考试结束后,将本试题和答题卡一并交回。 注意事项: 1.答题前,请您将自己的姓名、准考证号填写在答题卡上,并将条形码准确粘贴在条形码区域内。 2.答题时,请您按照考试要求在答题卡上的指定区域内作答,在草稿纸、试题上答题无效。 一、听力(共20分) Ⅰ.情景反应根据你所听到的句子,选择恰当的应答语。(5分) 1. A.Good morning! B.Good afternoon! C.Good evening! 2. A.That's too bad. B.Thanks a lot. C.Goodbye. 3. A.It's old. B.It's nice. C.It's blue. 4. A.This way,please. B.Sorry to hear that. C.OK,here you are. 5. A.It's five dollars. B.It's five minutes. C.It's five kilometers. Ⅱ.对话问答根据你所听到的对话及问题,选择正确答案。(5分) 6.A The chess club. B.The English club. C.The music club 7.A.A cup of tea. B.A glass of milk. C.A bottle of water. 8. A.Behind the door. B.By the window. C.Beside the desk. 9. A.It's 6:15. B. It's 7:30. C.It's 8:45. 10. A.Because she has a cold. B.Because she is happy. C.Because she is fine. Ⅲ.图片理解看图听描述,选择与你所听到的描述内容相符合的选项(下列图中有一幅图片与描述内容无关)。(5分)

吉林省长春市中考英语试卷教学内容

2013年长春市初中毕业生学业考试 英语试卷 本试卷满分95分,考试时间100分钟。 一、基础知识(共25分) I.在下列各句的空白处填入一个适当的词,使句子意思完整、语法正确(5分) 1. Lucy's name is on the book, so it must be __________. 2. The boy cried because he broke his toy car __________ accident. 3. When my mother was a student, math was her favorite __________. 4. The volunteers went to the hospital to cheer the sick children __________. 5. My sister and her friends usually __________ out in the mall on the weekend. II.用括号内所给单词的适当形式填空 6. We are going to Singapore at the __________ (begin) of July. 7. The __________ (four) boy in the line is a new student. 8. For tourists, feeding __________ (monkey) isn't allowed in the zoo. 9. In ancient times, it was __________ (possible) for people to travel in space. 10. The young lady left the party without __________ (say) goodbye to anyone. III. 单项选择。(15分) 从每小题所给的四个选项中,选出ー个最佳答案。 11. __________ girl in pink is my three-year-old daughter. A. The B. A C. An D. / 12. —I bought a new camera. —Cool! Where did you get it? I want to buy __________. A. it B. one C. this D. that 13. We've had to __________the sports meeting until September. A. put on B. put out C. put up D. put off 14. Everyone likes making friends with people __________ think more of others. A. who B. whom C. which D. / 15. There __________ a teacher and some students waiting for the school bus outside. A. are B. am C. be D. is 16. When I came into the hall, the pianist __________ a piece of music. A. is playing B. plays C. will play D. was playing 17. It's relaxing to get close to nature __________ the beauty. A. enjoy B. enjoyed C. to enjoy D. enjoys 18. __________ useful information you've given to me! A. What B. How C. What a D. How a 19. The book __________ into many other languages last year. A. translated B. be translating C. was translated D. translate 20. David Beckham retired. That is something I feel as __________ as other fans about. A. strong B. strongly C. stronger D. more strongly 21. __________good care of your pet, or it will get ill easily. A. Taking B. To take C. Take D. Taken 22. —Must I clean up my bedroom now?

吉林省长春市2017年中考英语试题及答案(word版)

2017年长春市初中毕业生学业水平考试 英语 本试卷包括四道大题,共8页,满分95分,考试时间为100分钟。考试结束后,将本试卷和答题卡一并交回。 注意事项: 1. 答题前,考生务必将自己的姓名、准考证号填写在答题卡上,并将条形码准确粘贴在条形码区域内。 2. 答题时,考生务必按照考试要求在答题卡上的指定区域内作答,在草稿纸、试卷上答题无效。 一、基础知识(共25分) I. 在下列各句的空白处填入一个适当的词,使句子意思完整,语法正确。(5分) 1. It’s a waste to cut ________ lots of trees for chopsticks every year. 2. There’s no doubt that ________ is the coldest season of the year in China. 3. The traffic was so heavy this morning that I was nearly ________ for school. 4. I fell in love ________ the Science Museum of Jilin Province the first time I visited it. 5. The weather report says there will be a strong wind today. Be sure to ________ all the windows. II. 用括号内所给单词的正确形式填空。(5分) 6. Jim’s aunt bought him a new model ship on his ________ (seven) birthday. 7. I ________ (agree) that moms do all the housework. Everyone should share. 8. I enjoy ________ (read) Chinese ancient poems aloud to better understand them. 9. In the school hallways, the students are supposed to speak and act ________ (quiet). 10. It’s believed that riding ________ (bike) is good for our health and the environment. III. 单项选择。(15分) 从每小题所给的四个选项中,选出一个最佳答案。 11. I play ________ guitar in my spare time. it makes my life more colorful. A. a B. an C. the D. / 12. There ________ an amusement park near my home. I often see children play there. A. am B. is C. are D. be 13. You’ll get better grades ________ you follow the teachers’ advice. A. if B. until C. though D. while 14. ----The final exam is over. Will you stay at home or visit your grandparents? ----________. I miss them very much. A. Yes, I will. B. I’ll stay at home. C. No, I won’t. D. I’ll visit my grandparents. 15. ________ wonderful The Reader is! Many people enjoy this TV program. A. How B. How a C. What D. What a 16. Journey to the West is a book ________ influences teenagers a lot. It is very popular. A. who B. when C. which D. what

2017-2018学年吉林省长春外国语学校八年级(上)期末数学试卷含答案解析

2017-2018学年吉林省长春外国语学校八年级(上)期末数学试 卷 一、选择题(每小题3分,共24分) 1.(2017?泰州)2的算术平方根是() A.±√2B.√2C.?√2D.2 2.(2015?衡阳)下列计算正确的是() A.a+a=2a B.b3?b3=2b3C.a3÷a=a3D.(a5)2=a7 3.(2015?贵港)下列因式分解错误的是() A.2a﹣2b=2(a﹣b)B.x2﹣9=(x+3)(x﹣3) C.a2+4a﹣4=(a+2)2D.﹣x2﹣x+2=﹣(x﹣1)(x+2)4.(2017秋?南关区校级期末)数学老师给出如下数据1,2,2,3,2,关于这组数据的正确说法是() A.众数是2B.极差是3C.中位数是1D.平均数是4 5.(2017秋?南关区校级期末)如图,△ABC≌△CDA,∠BAC=85°,∠B=65°,则∠CAD度数为() A.85°B.65°C.40°D.30°6.(2015?荆门)已知一个等腰三角形的两边长分别是2和4,则该等腰三角形的周长为()A.8或10B.8C.10D.6或12 7.(2013?长春模拟)如图,在?ABCD中,AB=3,BC=4,AC的垂直平分线交AD于E,则△CDE的周长为() A.6B.7C.8D.10 8.(2017春?定安县期末)在△ABC中,点E、D、F分别在AB、BC、AC上且DE∥CA,DF∥BA,下列四个判断中不正确的是()

A.四边形AEDF是平行四边形 B.如果∠BAC=90°,那么四边形AEDF是矩形 C.如果AD⊥BC,那么四边形AEDF是菱形 D.如果AD平分∠BAC,那么四边形AEDF是菱形 二、填空题(每小题3分,共18分) 9.(2017秋?南关区校级期末)﹣21a2b3c÷3ab=. 10.(2015秋?端州区期末)若5x﹣3y﹣2=0,则105x÷103y=. 11.(2017秋?南关区校级期末)在平行四边形ABCD中,已知∠A﹣∠B=60°,则∠C =. 12.(2018?惠州一模)已知菱形的两条对角线长分别是6和8,则这个菱形的面积为.13.(2006?浙江)甲、乙两台机器分别罐装每瓶质量为500克的矿泉水.从甲、乙罐装的矿泉水中分别随机抽取了30瓶,测算得它们实际质量的方差是:S甲2=4.8,S乙2=3.6.那么罐装的矿泉水质量比较稳定. 14.(2012?铜仁地区)以边长为2的正方形的中心O为端点,引两条相互垂直的射线,分别与正方形的边交于A、B两点,则线段AB的最小值. 三、解答题(共78分) 15.(6分)(2017秋?南关区校级期末)计算: 3?(π?3)0 (1)√25?√8 (2)(5x+1)(﹣2x+3) 16.(6分)(2017秋?南关区校级期末)将下列各式因式分解: (1)2a2﹣6a

2015年吉林省中考英语试卷.pdf

2015年吉林省中考英语试卷 一、听力(共20分) Ⅰ. 情景反应。根据你所听到的句子,选择恰当的应答语。 1. A. Nice to meet you, too. B. Sorry, I can’t. C. That’s a good idea. 2. A. It’s mine. B. It is $15. C. It’s red. 3. A. Every day. B. For six days. C. At 8:30. 4. A. In the morning. B. Sounds great. C. At the school gate. 5. A. Yes, you can. B. It’s on Monday. C. Sure, I’d love to. Ⅱ. 对话问答。根据你所听到的对话及问题,选择正确答案。 6. A. Mr. Green. B. Music. C. On Wednesday. 7. A. In a restaurant. B. On the street. C. In the post office. 8. A. The sports club. B. The chess club. C. The art club.

9. A. Yes, he did. B. No, he didn’t. C. We don’t know. 10. A. Lie down and rest. B. See a dentist. C. Drink some hot tea with honey. Ⅲ. 图片理解。看图听描述,选择与你所听到的描述内容相符合的选项。(下列图中有一幅图片与描述内容无关) A B C D E F 11. ______ 12. ______ 13. ______ 14. ______ 15. ______ Ⅳ. 短文理解。根据你所听到的短文内容,选择正确答案。 16. Where did Sandy and her brother go last Friday? A. They went to the town. B. They went to the city. C. They went to the countryside. 17. What time did they arrive? A. At 3:30 in the afternoon. B. At 6:00 in the afternoon. C. At 7:00 in the morning.

相关文档
最新文档