1、20122013学年度下学期期中考试九年级数学考试时间:120分钟,试卷分值:120分题号一二三总分1718192021222324得分一、选择题(每空3分,共30分)1、在2,-3,-5这三个数中,任意两数积的最小值为 ( )A.-6 C.-152、在RtABC中,C=90,若sinA=,则A的度数是()A30B45 C60 D903、 在平面直角坐标系内P点的坐标(),则P点关于轴对称点的坐标为 ( )A() B() C() D (,-1)4、袋中有3个红球,2个白球,若从袋中任意摸出1个球,则摸出白球的概率是( )主视图 左视图 俯视图4422 A B C D5、 一个几何体的三视图如右
2、,其中主视图和左视图都是腰长为4、底边为2的等腰三角形,则这个几何体的侧面展开图的面积为()A B C DABCDPE第6题6、已知:如图,在正方形ABCD外取一点E,连接AE、BE、DE过点A作AE的垂线交DE于点P若AEAP1,PB下列结论:APDAEB;点B到直线AE的距离为;EBED;SAPDSAPB1其中正确结论的序号是( ) A BCD第7题ABCDFE7、如图,在四边形ABCD中,E、F分别是AB、AD的中点。若EF2,BC5,CD3,则tan C等于 A B C D8、如图,在ABC中,AD=DE=EF=FB,DGEHFIBC,已知BC=a,则DG+EH+FI的长是( ). A
3、 B C DB(4,4)A(1,40xyOCD第10题 OxyBADCE第9题ADEFBCIHG第8题9、如图,已知A、B两点的坐标分别为(2,0)、(0,1),C 的圆心坐标为(0,1),半径为1若D是C上的一个动点,射线AD与y轴交于点E,则ABE面积的最大值是( )A3 B C D410、如图,点A,B的坐标分别为(1, 4)和(4, 4),抛物线的顶点在线段AB上运动,与x轴交于C、D两点(C在D的左侧),点C的横坐标最小值为-3,则点D的横坐标最大值为( )A3 B1 C5 D二、填空题(每空分,共 分)11、计算:= 。12、分解因式: = 13、已知是关于x的一元二次方程的两实根
4、,那么的最小值是 。 14、如图,O的直径AB与弦CD相交于点E,若AE=7,BE=1,cos AED =,则CD= 。15、如图,DE是ABC的中位线,M是DE的中点,CM的延长线交AB于N,那么S四边形DBCM:SDMN。yxAOCDHDABECO第14题ABCDNME第15题第16题16、已知:如图所示,一次函数y=-2x+3的图象与x轴、y轴分别交于A、C两点, 二次函数y=x2+bx+c的图象过点C,且与一次函数在第二象限交于另一点B,若AC:CB=1: 2,那么这个二次函数的顶点坐标为_.三、解答题(第17-21小题每题8分,第22、23题每题10分,第24题12分,共72分)17
5、.先化简再求值:,其中a。160165cm 18%155160cm 32% 150155cm 18%145150cm 12%165170cm10%170175cm4%140145cm6% 140 145 150 155 160 165 170 175 身高/cm403020100学生人数612183210418.某学校为了解该校九年级学生的身高情况,抽样调查了部分同学,将所得数据处理后,制成扇形统计图和频数分布直方图(部分)如下(每组只含最低值不含最高值,身高单位:cm,测量时精确到1cm):(1)请根据所提供的信息补全频数分布直方图;(2)样本的中位数在统计图的哪个范围内?(3)如果上述样本
6、的平均数为157cm,方差为0.8;该校八年级学生身高的平均数为159cm,方差为0.6,那么_(填“九年级”或“八年级”)学生的身高比较整齐是方程的两个实数根,且(1)求及的值;(2)求的值20.如图所示,电工李师傅借助梯子安装天花板上距地面2.90m的顶灯已知梯子由两个相同的矩形面组成,每个矩形面的长都被六条踏板七等分,使用时梯脚的固定跨度为1 m矩形面与地面所成的为78,李师傅的身高为1.7 8m,当他攀升到头顶距天花板0.0 50.2 0 m时,安装起来比较方便他现在竖直站立在梯子的三级踏板上,请你通过计算判断他安装是否比方便?(参考数据:sin780.98,cos780.21,tan
7、784.70)21.民政部门为了帮助失学儿童重返校园,举办了一次献爱心抽奖活动,印制了10000张奖票,其中印有老虎图案的奖票10张,每张可获奖金1000元,印有羊图案的50张,每张可获奖金100元,印有鸡图案的100张,每张可获奖金20元,印有兔图案的1000张,每张可获奖金2元,其余无图案也无奖金,小丽买了一张奖票,请你帮她算一算:(1)她能获得奖金的概率是多少?(2)她能获得1000元和2元奖金的概率分别是多少?对此你有什么感受?ABCDEFGO22. 如图所示,已知AB是O的直径,直线与O相切于点C,CD交AB于点E,BF直线,垂足为F,BF交O于点G。(1) 图中哪条线段与AE相等?
8、试证明你的结论。(2) 若,AE=4,求AB的值。23. 电子商务的快速发展带动了网上购物的人越来越多,订购的商品往往通过快递来送达。买多网上某店铺率先与“青蛙王子”童装厂取得联系,经营该厂家某种型号的童装。根据第一周的销售记录,该型号服装每天的售价(元/件)与当日的销售量(件)的相关数据如下表:每件的销售价(元/件)200190180170160150140每天的销售量(件)8090100110120130140已知该型号童装每件的进价是70元,同时为吸引顾客,该店铺承诺,每件服装的快递费10元由卖家承担。(1) 请用一次函数表示出与的函数关系式。(2) 设第一周每天的赢利为元,求关于的函数
9、关系式,并求出每天的售价为多少元时,每天的赢利最大?最大赢利是多少?24. 已知抛物线经过点A(5,0), B(6,-6)和原点。PECDGFABO 1 2 3 4 5 x6 42-2-4y(1) 求抛物线的函数解析式;(2) 若过点B的直线与抛物线相交于点C(2,),请求出OBC的面积S的值;(3) 过点C作平行于轴的直线交轴于点D,在抛物线对称轴右侧位于直线DC下方的抛物线上任取一点P,过点P作直线PF平行于轴交轴于点F,交直线DC于点E,直线PF与直线DC及两坐标轴围成矩形OFED(如图),是否存在点P,使得OCD与CPE相似?若存在,求出点P的坐标; 若不存在,请说明理由。 (4)长海
10、县20102011学年度第一学期期末学业质量检测小学三年级英语 考试时间:60分钟题号总 分得分听力部分 (50分)、听一听, 选一选。( )1. A. B. C. ( )2. A. B. C. ( )3. A. B. C. ( )4. A. B. C. ( )5. A. B. C. 、听一听, 排一排。A. B. C. D. 1. _ 2. _ 3. _ 4. _ 、 听一听, 辨一辨。( ) 1.A. Its nice. B. Yes, it is. ( ) 2. A. Yes. Here you are. B. Thanks, Mum.( ) 3. A. No, I havent. B.
11、 Yes, I have. ( ) 4. A. These are stone monkeys. B. There are 2. ( ) 5. A. Im going to be a bus driver. B. My father is a taxi driver.、听一听, 连一连。 、听一听,补一补。1、I like English. Its _ to learn English.2、Amy is _. Shes got a _.3、Im going to _ the Ming Tombs on _.4、Were going to swim in the _.5、There are tw
12、o _ in my family.6、Amys shorts are _.笔试部分 (50分)、1、请按顺序默写26个英文字母,并圈出五个元音字母。 2、按照正确的英文格式书写下列句子。How many people are there in your family?、选择。( )1、These ducks _ very naughty.A. is B. are( )2、A: Can I come in ? B:_.A. Yes, I can. B. Yes , please. ( )3、This is _shirt.A 、Sam B、Sam C、Sams( )4、I can _ far, b
13、ut I cant _ fast.A. jump , run B. jumping , running ( )5、Please be quiet! Dad _ working in the room. A. am B. is C. are( )6、I _ got a new kite. A. have B. has ( )7、There _ 20 girls in my class. A. am B. is C. are( )8、A:_ are you going , Xiaoyong ? B: I m going to go to Hong Kong.A、 What B、Where C 、H
14、ow、情景反应, 连连看。1、What are you going to do ? A 、No, I cant.2、Can you run fast? B 、Im going to do long jump.3、How many books are there? C、 Im watching TV.4、Has he got a test today? D、 There are three.5、What are you doing ? E 、No, he hasnt.、根据所给语境, 选填单词补全下列句子。elephant , those , biscuits , worry , man 1、A
15、: What are _? B: Theyre dragon boats.2、There is an _. And there is a camel.3、My father is a tall _.4、Dont _. Lets fix the kite! 5、Im hungry. Can I have these_, please? 、阅读理解,根据短文内容判断正( T )误( F )。Hello! My name is Amy. I can jump high, and I can jump far, but I cant run fast. On Sports Day, Im going
16、to do high jump. Sam can jump far and jump high, too. And hes going to do long jump. Daming cant jump far, but he can run fast. Hes going to run a race.( ) 1、 Amy can run fast. ( ) 2、 Amy is going to do high jump. ( ) 3、 Sam is going to do high jump,too. ( ) 4、 Daming can run fast. ( ) 5、In this sho
17、rt passage (在这篇短文中) , there is one boy, and there are two girls. 三年级英语听力题签:注意:每道听力试题读二遍,听力时间控制在25分钟内。、听一听, 选一选。(听音,选出与你所听到的内容相符的图片。)1.There is a horse. 2. I can use a knife. 3. I m eating a hamburger. 4.This bird cant fly. 5. Were making a cake.、听一听, 排一排。(听句子,根据所听内容将下列图片排序。)1. He can jump far. 2. Ch
18、opsticks are hard for English people.3. They are going to play basketball on Saturday. 4. There are two children in the boat. They are feeding ducks.、听一听, 辨一辨。(认真看图,细听问句,选出正确的答句。)1. I like noodles. Is it Chinese fast food ? 2. Can I have an ice cream, please? 3. Have you got a headache? 4. How many
19、stone monkeys are there? 5. What are you going to be, Daming? 、听一听, 连一连。(听音识图,把上下相关的图片用线连起来。)1、Hello, Im Daming . Im going to be a doctor.2、A: Are you going to see Sun Wukong , Amy? B: Yes, I am .3、Lingling has got a pet cat.4、A: Its a pig. Can you draw it, Sam ? B: Yes , I can .5、Lanlan is playing
20、with a bird . 、听一听, 补一补 。(听音补全句子,填入所缺单词。)1、I like English. Its _ easy _ to learn English.2、Amy is _ ill _. Shes got a _ cold _.3、Im going to _ visit _ the Ming Tombs on _ Friday_.4、Were going to swim in the _ sea _. 5、There are two _ women _ in my family.6、Amys shorts are _ wet _.听力部分到此结束!三年级英语答案及评分
21、标准:听力部分、(2510分) BCCCB、(3412分) 14:CABD、(2510分) BABBA、(2510分) Amy -Sun Wukong , Lingling- cat , Lanlan -bird , Sam-pig , Daming- doctor、(188分) 答案略。(详见听力题签)(备注:Friday和 women这2个单词,画有“”的部分如果没有形式的变化将扣0.5分, 其余单词必须完全拼写准确方可得1分。)笔试部分、( 3+14分) 答案略。(教师自行把握赋分标准) 第一小题3分(其中26个字母共是2分,分4个等级给分。圈画出5个元音字母共是1分,分2个等级给分。)
22、第二小题1,分2个等级给分。、(2816分) BBCAB ACB、(2510分) 1-B , 2-A , 3-D , 4-E , 5-C、(2510分) 1.those , 2.elephant , 3. man, 4.worry , 5. biscuits六年级上册Module 1 Unit 1同步练习一、单项选择(每题2分,共24分)( ) 1 Hes in New York_ his cousin, Simon. A at B with C for ( ) 2 Tell me more _the Great Wall. A about B How long C in ( ) 3 _is
23、it ? Its about six thousand kilometres. A How B How long C How about( ) 4 _is Beijing? A How long B How big C How many( ) 5 Daming is _America. A visiting B visit C visited( ) 6 Its a _of the Great Wall. A pictures B picture C photos( ) 7 Its _eight million people. A get B got C gets ( ) 8 Its a lov
24、ely cat. Please look _it. A at B out C in ( ) 9 Here are two _the Great Wall. A pictures B picture C pictures of ( ) 10 Please tell me more things _Shanghai. A in B about C on ( ) 11 Beijing_got eight million people. A is B us C has ( ) 12 Fourteen_. A millions B milliones C million二、改错(每题2分,共16分)s
25、about two thousands seven hundr4 Hows long is the Great Wall ?_7 Beijing三、用所给词的适当形式填空(每题2 分,共10分)1 Beijing has _(get) about fourteen million people.2 How long _(be) the Great Wall ?3 Its about six hundred _(kilometre) ?4 Its _(a ) animal. 5 Tell me _(many) about the Great Wall.四、连词成句(每题5 分,共20分)1 fo
26、urteen Beijings about got peoole million2 great these are postcards3 he a is policeman _?4 in with friends shes Beijing her 五、句型转换(每空2分,共20分)1 This picture is great.(变为复数句)_ _ _ great.2 The snake is two metres long.(对划线部分提问) _ _ is the snake ?3 My father is in New York with his cousin. (对划线部分提问)_ _
27、in New York with his cousin ?4 Its got about eight million people.(变为否定句)It _ _ about eight million people.六、阅读理解,判断对错(每题2分,共10分)Simon is a good boy . Today is Sunday and it is fine, so Simons father takes him to visit the Great Wall. The Great Wall is far away from his home. So they are going there
28、 by bus . The Great Wall is about six thousand seven hundred kilometres. Its very long and great. Simon is very happy and his father is happy , too .( ) 1 Simon is a good girl.( ) 2 Simons father takes him to visit the zoo.( ) 3 The Great Wall is far away from his home.( ) 4 Today is Saturday.( ) 5
29、Simon is very happy, but his father is not happy.六年级上册Module 1 Unit 2 同步练习一、 单项选择(每题2分,共12 分)( ) 1 New York is _ the east of America. A in B on C to ( ) 2 There are _of things to see. A a lot B lots C lot ( ) 3 _ a big cake it is ! A How B What C Where ( ) 4 Where is _? A the Mexico B Mexico C the Canada( ) 5 _ Beijing _Lhsa, its such a big countr