八年级期中考试卷(2014-2015)

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2014-2015第一学期八年级数学期中考试题

2014-2015第一学期八年级数学期中考试题

2014-2015学年第一学期八年级数学期中考试题一、选择题(每题4分,共40分)1、以下列各组线段为边,能组成三角形的是A .1 cm, 2 cm, 4 cm B. 4 cm, 6 cm, 8 cmC. 5 cm, 6 cm, 12 cmD. 2 cm, 3 cm, 5 cm2、一个多边形的内角和等于1 080°,这个多边形的边数是()A. 9B.8C.7D.63、点P(-2,1)关于x轴对称的点的坐标为A. (2,1)B.(-2,-1)C. (2,-1)D. (1,-2)4、下列交通标志中,不是轴对称图形的是5、如图所示,已知点A,D,C,F在同一条直线上,AB= DE, BC=EF,要使△AB C ≌△DEF,还需要添加一个条件是()A. ∠BCA= ∠FB. ∠B= ∠EC. BC//EFD. ∠A=∠EDF6、在△ABC中,∠A:∠B:∠C=1:2:3,最小边BC=5cm,则最长边AB 的长为A. 5cmB. 6cmC. 8cmD. 10cm7、如图所示,在△ABC中,∠ABC和∠ACB的平分线交于点E,过点E作MN//BC交AB于M,交AC于N,若BM+CN=9,则线段MN的长为A.6B. 7C. 8D. 98、如图,直线L是一条河,P ,Q是两个村庄.欲在L上的某处修建一个水泵站,向P ,Q两地供水,现有如下四种铺设方案,图中实线表示铺设的管道,则所需管道最短的是9、如图所示,在平面直角坐标系中,点A在第一象限,点P在x轴上,若以P,O,A为顶点的三角形是等腰三角形,则满足条件的点P共有A. 2个B. 3个C. 4个D. 5个10、如图点C为线段AE上一动点(不与点A, E重合),在AE同侧分别作等边△ABC和等边△CDE, AD与第5题图第7题图第8题图第9题图BE交于点O , AD与BC交于点P, BE,CD交于点Q,连接PQ,以下五个结论:①AD=BE;②AP=BQ;③DE=PD; ④PQ//AE; ⑤∠AOB=60°,其中正确结论的个数是A. 2个B. 3个C. 4个D. 5个二、填空题(每题3分,共21分)11、.如图所示,在△ABC中,∠A=80°,点D是BC延长线上一点,∠ACD= 150°,则∠B= 。

2014-2015学年度第二学期八年级数学期中考试卷附答案

2014-2015学年度第二学期八年级数学期中考试卷附答案

2014-2015学年度第二学期八年级数学期中考试卷(考试时间:100分钟 满分:120分)一、选择题:(每小题3分,共42分)下列各题都有A 、B 、C 、D 四个答案供选择,其中只有一个答案是正确的,请把认为正确的答案前面的字母编号写在相应的题号下。

1.下列式子是分式的是( )A.2x B.11+x C.y x +2 D.πxy2 2. 使分式2-x x有意义的x 的取值范围是( )A. 2x =B.2x ≠C.2x =-D.2x ≠-3. 某种感冒病毒的直径是0.00000012米,用科学记数法表示为( )米.A .71.210-⨯ B .71012.0-⨯ C .6102.1-⨯ D .61012.0-⨯ 4.点)0,2(在( )A.x 轴上B.y 轴上C.第一象限D.第四象限 5.点P (5,4-)关于x 轴对称点是( )A .(5,4) B.(5,4-) C.(4,5-) D.(5-,4-) 6.若点P(3,-1m )在第二象限,则m 的取值范围是( )A. m <1B. m <0C. m >0D. m >1 7.函数23-=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8.在同一坐标系中,函数x ky =和3+=kx y )0(≠k 的图像大致是( )9. 在平行四边形ABCD 中,A B C D ∠∠∠∠∶∶∶的值可以是( ) A.1234∶∶∶ B.1221∶∶∶ C.2211∶∶∶ D.2121∶∶∶ 10.下列说法错误的是( )学校: 班别: 姓名: 座号:………………………………………………………………装………………订………………线………………………………………………得分E A .平行四边形的对角相等 B.平行四边形的对角互补 C .平行四边形的对边相等 D.平行四边形的内角和是360°11.如图1,在平行四边形ABCD 中,CA ⊥AB ,若AB=3,BC=5,则平行四边形的面积等于( )A .6 B. 10 C. 12 D. 1512. 如图2,a b ∥,下列线段中是a b ,之间的距离的是( )A.AB B.AE C.EF D.BC图2 13.已知2111=-b a ,则b a ab -的值是( ) A .21 B.21- C.2 D.2-14.当一次函数32-=x y 的图像在第四象限时,自变量x 的取值范围是( ) A.0<x <23 B.x >0 C.x <23D.无法确定二、填空题:(每小题4分,共16分)15. 若分式方程212-=--x x m x 有增根,则这个增根是=x 16.若反比例函数xky = 的图象经过点(1,-2),则此函数的解析式为 。

2014-2015学年 上学期期中考试八年级语文试卷

2014-2015学年 上学期期中考试八年级语文试卷

2014-2015学年上学期期中考试八年级语文试卷一、知识积累与运用(12分)1.下列各组词语中加点字的注音全都正确的一项是()(2分)A.差使(chāi) 颓唐(tuí) 拭干(shì)愧怍(zuî)B.蹒跚(pān)奔丧(sàng)晶莹(yíng)交卸(yù)C.迂腐(yū)踌躇(zhù)伎俩(zhī)尴尬(gāng)D.惨淡(cǎn)赋闲(fù)举箸(zhù)诘问(jiē)2. 下列句子中加点的成语使用正确的一项是( ) (2分)A. 校园里传来了骇人听闻的消息,王刚作文竞赛获得了全国第一等奖。

B. 他怒不可遏地扬起手往桌上一拍,霍地站了起来。

C. 提问要讲究艺术性,太容易不行,难得让学生不屑置辩也不行。

D. 班会上,班主任长此以往地表扬了拾金不昧的李明同学。

3. 下列句子没有语病的一句( ) (2分)A.学校热情表扬了刘明见义勇为行径。

B.有没有健全的体魄,是能够成为接班人的前提。

C.秋天的抚州是个美丽的城市。

D.以美国为首的北约在南联盟制造的血腥暴行,是对人类文明的肆意践踏。

4. 下列句子的排列顺序最恰当的一组是( )(2分)①他穿着很旧的布马褂,破皮鞋,显得很寒酸。

②现在是躲在乡下,教着几个学生糊口。

③回到故乡之后,又受着轻蔑、排斥、窘迫,几乎无地自容。

④但因为有时觉得很气闷,所以也乘了航船进城了。

⑤谈起自己的经历来,他说他后来没有学费,不能再留学,便回来了。

A.③⑤①②④B.①②⑤④③C.⑤②①④③D.①⑤③②④5、下列填入语段横线上最能表达贝多芬内心痛苦的一项是( )(2分)贝多芬什么也听不见,很久很久背身站在指挥台上,直到一个女孩拉着他的手向观众答谢时,他才缓缓地转过身来。

__________________________________。

A、原来他完全聋了!他永远不能担任指挥了!B、原来他完全聋了。

2014—2015学年度第二学期期中考试初二年级数学试卷附答案

2014—2015学年度第二学期期中考试初二年级数学试卷附答案

OABCD2014—2015学年度第二学期期中考试初二年级数学试卷考试时间:100分钟 满分:100分一、选择题 (每小题3分,共30分)1.下列各组长度的线段能组成直角三角形的是( ) A .a =2,b =3,c =4 B .a =4,b =4,c =5 C .a =5,b =6,c =7 D .a =5,b =12,c =132.下面各条件中,能判定四边形是平行四边形的是( )A.对角线互相垂直B.对角线互相平分C.一组对角相等D.一组对边相等3.直角三角形一条直角边长为8 cm ,它所对的角为30°,则斜边为( ) A. 16 cm B. 4cm C. 12cm D. 8 cm 4.用配方法解方程0262=+-x x 时,下列配方正确的是( )A .9)3(2=-xB .7)3(2=-xC .9)9(2=-xD . 7)9(2=-x 5.顺次连结菱形各边中点所围成的四边形是( )A .一般的平行四边形B .矩形C .菱形D .等腰梯形6.如图,矩形ABCD 中,AB=3,两条对角线AC 、BD 所夹的钝角为120°,则对角线BD 的长为( )A .6B .3C .33D .637.已知四边形ABCD 是平行四边形,下列结论中不正确...的是( ) A .当AB =BC 时,它是菱形 B .当AC ⊥BD 时,它是菱形 C .当∠ABC =90º时,它是矩形D .当AC =BD 时,它是正方形8.如图,□ABCD 中,∠DAB 的平分线AE 交CD 于E ,AB=5, BC=3,则EC 的长( ) A. 1 B. 1.5 C. 2 D. 39.直角三角形两直角边的长度分别为6和8,则斜边上的高为( )CBAED年级 班级 姓名 学号装 订 线3A.10B.5C. 9.6D.4.810.若关于x 的一元二次方程2210kx x --=有两个不相等的实数根,则k 的取值范围 是 ( )A.1k >-B. 1k >-且0k ≠C.1k <D. 1k <且0k ≠二、填空题(每小题3分,共30分)11.命题“菱形是对角线互相垂直的四边形”的逆命题是 . 12.梯子的底端离建筑物5米,13米长的梯子可以达到该建筑物的高度是 米. 13.如果菱形的两条对角线长为cm 10与cm 12,则此菱形的面积______2cm . 14.在ABC ∆中,∠C=090,AC=12,BC=5,则AB 边上的中线CD= . 15.一个正方形的面积为81cm 2,则它的对角线长为 cm.16. 已知□ABCD 的周长是24,对角线AC 、BD 相交于点O ,且△OAB 的周长比△OBC 的周长大4,则AB= .17.若关于x 的一元二次方程 220x x k -+=的一个实数根为2,则k 的值为________.18.如下图,已知OA=OB ,那么数轴上点A 所表示的数是____________.19.若(m -2)22-m x+x -3=0是关于x 的一元二次方程,则m 的值是______.20. 如图,⊿ABC 的周长为16,D, E, F 分别为AB, BC, AC1-30-1-2-4231B A A的中点,M, N, P 分别为DE, EF, DF 的中点,则⊿MNP 的周长为 。

初中数学八年级2014—2015第一学期期中学业水平测试卷附参考答案

初中数学八年级2014—2015第一学期期中学业水平测试卷附参考答案

2014—2015 第一学期初二数学期中学业水平测试、选一选,牛刀初试露锋芒!(每小题3分,共42分)1.下列图形中,轴对称图形的个数是()A. 4个2 .下列说法正确的是()A .三角形的角平分线是射线。

B.三角形三条高都在三角形内。

C. 三角形的三条角平分线有可能在三角形内,也可能在三角形外。

D. 三角形三条中线相交于一点。

3 .两根木棒长分别为5cm和7cm,要选择第三根,将它们钉成一个三角形,?如果第三根木棒长为偶数, 则组成方法有b5E2RGbCAPA. 3种B. 4种C. 5种D. 6种4. 下列各组条件中,不能判定△AB4A A/B/C/的一组是()/ / / / / //—”//A、/ A=Z A,/B=Z B ,AB= A BB、/ A=Z A , AB= A B , AC=A C/ / / J / / / / / / /C、/ A=/ A , AB= A B , BC= B CD、AB= A B , AC=A C ,BC= B C5. 如图,已知△ ABC的六个元素,则下面甲、乙、丙三个三角形中和△ ABC全等的图形是(D.只有丙6.如图1,将长方形ABCD纸片沿对角线BD折叠,使点C落在C •处,BC交AD于丘,若• DBC =22.5 °,贝恠不添加任何辅助线的情况下, 则图中45的角(虚线也视为角的边)的个数是()A. 5个E 22.12.如图5,△ ABC 的三边 AB 、BC CA 长分别是 20、30、40,其三条 角平分线将△ ABC 分为三个三角形,则 S A ABO : S A BCO:CAO 等于( )A . 1 : 1 : 1B . 1 : 2 : 3C . 2 : 3 : 4D . 3 : 4 : 513.如图6, 一圆柱高8cm,底面半径2cm,—只蚂蚁从点A 爬到点B 处吃食,要爬行的最短路程 (二 取 3)是() DXDiTa9E3dA.20cm;B.10cm;C.14cm;D. 无法确定.7•如图2,有一张直角三角形纸片,两直角边 △ ABC 折叠,使点B 与点A 重合,折痕为DE 为( )A. 10 cm B . 12cmC8、若等腰三角形的腰长为10,底边长为12,A 、6B 、7C 、8AC=5cm BC=10cm则厶ACD 的周长盒命 图2 E.15cmD . 20cm则底边上的高为()D 、99.如图3,小明把一块三角形的玻璃打碎成了三块,现在要到玻璃店去配一块完全一样的玻璃,那么最省事 的办法是()p1EanqFDPwA.带①去B.带②去C.带③去D.带①和②去10、下列条件中,不能确定三角形是直角三角形的是(A.三角形中有两个角是互为余角; B.三角形三个内角之比为3 : 2 : 1; C.三角形的三边之比为3 : 2 : 1 ; D.三角形中有两个内角的差等于第三个内角 11.把两个都有一个锐角为30°的一样大小的直角三角形拼成如图 4所示的图形,两条直角边在同一直线上.则图中等腰三角形有( )个. A. 1个B . 2个C.3 个D.4 个F C D图4图5A图614.如图7所示,已知△ ABC和厶BDE都是等边三角形。

2014——2015学年度第一学期八年级数学期中考试卷(含答案)

2014——2015学年度第一学期八年级数学期中考试卷(含答案)

2014——2015学年度第一学期 八年级数学期中考试卷(含答案)(考试时间:100分钟 满分:120分)一、选择题:(每小题3分,共42分)下列各题都有A 、B 、C 、D 四个答案供选择,其中只有一个答案是正确的,请把认为正确1、4的算术平方根是A . 2B . 2-C . 2±D . 2±2、与数轴上的点成一一对应关系的数是A . 有理数B . 无理数C . 实数D . 整数 3、下列从左边到右边的变形,属于因式分解的是A . 1)1)(1(2-=-+x x x B . 1)2(122+-=+-x x x xC . )4)(4(422y x y x y x -+=-D . 22)3(96-=+-x x x4、下列命题中是真命题的是A .三角形的内角和为180°B .同位角相等C .三角形的外角和为180°D .内错角相等 5、使式子32+x 有意义的实数x 的取值范围是A .32>x B . 23>x C . 23-≥x D . 32-≥x6、在实数73,1+π,4,3.14,38,8,0, 11.21211211中,无理数有A . 2个B . 3个C . 4个D . 5个7、一个正方形的边长增加了cm 2,面积相应增加了232cm ,则这个正方形的边长为 A . 6cm B . 5cm C . 8cm D . 7cm8、计算:()20132013125.08-⨯等于A . 1-B . 1C . 2013D . 2013- 9、下列条件中,不能证明△ABC ≌△'''C B A 的是 A .''''C A AC B B A A =∠=∠∠=∠,,学校:班别: 姓名: 座号:………………………………………………………………装………………订………………线………………………………………………得分 B'C BB .''''B A AB B B A A =∠=∠∠=∠,,C .'''''C A AC A A B A AB =∠=∠=,,D .'''''C B BC B A AB A A ==∠=∠,, 10、下列算式计算正确的是A .523a a a =+B .623a a a =⋅C .923)(a a =D . a a a =÷2311、估计15的大小在A . 2和3之间B . 3和4之间C . 4和5之间D . 5和6之间12、若(x+a)(x-5)展开式中不含有x 的一次项,则a 的值为A . 5-B . 5C . 0D . 5± 13、如右图,△ABC ≌△EDF ,DF =BC ,AB=ED ,AF =20,EC =10,则AE 等于 A . 5 B . 8 C .10 D . 15 14、如果则的值分别是A . 2 和 3B . 2和-3C . 2和D .二、填空题:(每小题4分,共16分) 15、计算:=⨯-2016201020132________。

2014-2015学年第一学期期中考试八年级英语考试卷

2014-2015学年第一学期期中考试八年级英语考试卷

八年级第一学期(英语)期中测试卷一.单项选择(每小题2分,共40分)( )1.—________do you surf the Internet ?—Once a week.A. HowB. How oldC. How oftenD. How many times( ) 2.________did you go on vacation?A. WhereB. WhatC. WhoD. which( ) 3. --- Where did Jenny go on vacation?--- She went______.A . somewhere warmB anywhere warmC warm somewhere D. warm anywhere( ) 4. I have quite _____ friends. I feel very happy.A. fewB. a fewC. littleD. a little( ) 5.I eat fruit and drink milk every day to keep me ________.A. healthB. healthilyC. healthyD. unhealthy( ) 6.The little girl often goes skating________ weekends.A. inB. onC. toD. for( ) 7. Where ________you ________yesterday?A. do,goB. did,goC. did,wentD. was,go( ) 8. John can’t get up so ______ as his little sister.A. earlierB. earlyC. more earlyD. very early ( ) 9. Lily is ______ and she likes talking with others.A. talentedB. loudC. outgoingD. quiet( )10. He always talks ______ than Liu Wei.A. manyB. muchC. moreD. most( )11. I’m a little ______ than my brother,A. tallB. tallerC. the tallD. the taller( )12 . Which is ______ season(季节) in Beijing?A.better B.best C.the best D.the better ( )13.Which subject is ______,physics or chemistry?A.very interesting B.most interestingC.more interesting D.much interesting姓名:_____________________ 成绩:______________________________( )14. Eric does his homework _________ in his class.A most careful B. carefully C. more careful D. the most carefully( ) 15. ----- ________ do you go to the cinema?----- Once a month.A.How longB. How farC. How oftenD. How much( )16. ---- Thanks _______ joining the talking show!----Y ou are welcome.A.byB. onC. ofD. for( )17.—Is Y ao Ming the best basketball player in China?—I think______.A.it B.so C.this D.that( )18. I like to have friends who are different______ me.A. toB. asC. fromD. than( )19. Don’t ______ the people who are in trouble .A. laughB. laugh atC. laugh forD. smile at( )20.—It's very kind of you to help me find the house.—______.A. That's right B.Thank you C.No problem D.Good-bye二.完形填空(每个1分,共10分)I am a trader. My job is to sell computers . I work very ___1_ . Every morning I get up at seven. I do morning exercises and have a light (清淡的)___2_____. Then I ___3___ my office. It ___4___ me forty minutes.Every year I have a long holiday. Then I can stay __5__ my family. Last summer my family and I had a good rest. We went to a town near the sea . Every day we had a swim. When it rained, I did some__6___ or ____7__ . We had ___8__ seafood . W e __9____ there for half a month. W e had a lot of__10______ .1. A . good B. nice C. hard ( )2. A. breakfast B. lunch C. supper ( )3. A. walks to B. drive to C. went to ( )4. A . spends B . cost C. takes ( )5. A. at B . in C. with ( )6. A. read B . reading C. reads ( )7. A. watching TV B. see TV C. watched TV ( )8. A . a lot of B. a lot C. many ( )9. A. are B . was C . were ( ) 10. A . fun B. funny C. fantastic ( )三.阅读理解(每小题2分,共10分)The Chinese New Y ear is the most important holiday for the Chinese people. For the Chinese ,the New Y ear comes with the first day of the First Moon ,between January 21 and February 19.People get ready for the holiday for fifteen days.Finally ,at midnight it is the first day of the First Moon. People close the shops and the streets are empty. Everyone locks the doors and stays at home.It is an important time for the family. The younger people bow(鞠躬) to the older people. The Chinese call this Ke T ou. This means “to touch the ground with the forehead”.Then the younger people wish the older people a happy New Y ear. The older people give children gifts of money inside envelopes. The family then go to sleep.In the morning ,people dress in their best clothes. Some people stay at home ,others go out to pay a New Y ear Call. They are very polite and do not use bad words. It's the most important day of the year . ( )31.“The Chinese New Y ear” in the passage means “______”.A .Mid-autumnB .the Spring FestivalC .Christmas DayD .the Dragon(龙)Boat Festival( )32.It takes about ______ to get ready for the Chinese New Y ear.A .a few daysB .twelve daysC .half a monthD .three weeks( )33.At midnight you can see ______ people in the street. Everyone stays at home.A .lots ofB .hundreds ofC .manyD .few( )34.The part of the face above the eyes and below the hair is the ______.A .earB .foreheadC .noseD .mouth( )35.On the Chinese New Y ear's Day. What do people usually say to each other when they meet?A .Good luck!B .Best wishes!C .Good morning.D .Happy Ne w Y ear!四.用所给词的适当形式填空(每个1分,共10分). 1. W e_________(play)basketball yesterday afternoon. 2. My uncle_________(live) in Beijing in 2000. 3. They_______(plan)to build a new bridge last year . 4.Mum asked children to eat it ________ (two) a week. 5.I want to go ________ (shop).6.The doctor asked her _________ (eat) more fruit. 7. Mr. Green is ____________ ( serious) than Mr Brown.8.Jim works as____________(hard) as Jim. So they both get good grades. 9.Can you say it____________(loud) ? I can ’t hear you . 10.I like the friend who is a good ____________(listen) . 五.英汉互译。

2014--2015学年度上学期期中考试八年级语文试卷

2014--2015学年度上学期期中考试八年级语文试卷

2014-2015学年度上学期期中考试八年级语文试卷(时间:120分钟分数:120分)亲爱的同学们,升入初二后,你是否又更深刻地感觉到了语文的博大精深而又和生活息息相关呢?现在初二的学习生活已步入中期,正是检验成果的时候了,你直进考场,你就是这里的主人。

只要心境平静,只要细心认真的阅读、思考,你就会感到试题并不难。

一切都在你的掌握之中,请相信自己!加油!一、积累与运用(20分)1. 注音或填写汉字。

(2分)() jiá suì ( )殷.红()然而止深()戏谑.2. 下列词语书写没有错误的一项是()(2分)A. 稔熟迷惘重震旗鼓精采绝伦B. 须臾巾帼阴盛阳衰顾名思义C. 了悟祈祷与日俱进骄揉造作D. 癫狂强捍淋漓尽致嗜此不疲3. 下列句子中,加点的成语使用恰当的一项是()(2分)A. 树根在大地里面纵横交错,触类旁通....,吸收着大地母亲给予的粮食的供养。

B. 为了充实自己的“奇石王国”,他常常慷慨解囊....,上门求购别人珍藏的奇石。

C. 这些书法精品,或古朴,或隽秀,或雄浑,或飘逸,将汉字之美表现得淋漓尽致....。

D. 这一批年轻的科学家,正以无所不为....的勇气不懈地进行在追求科学真理的征程上。

4. 默写填空。

(6分)(1)晴川历历汉阳树,。

(2)谁道人生无再少?。

(3)满坐宾客无不,,,,以为妙绝。

(4)《黄鹤楼》中传诵不衰的,唱出了游子去国怀乡的羁旅之思。

(5)刘禹锡的《秋词》中借白鹤形象表达自己豪迈乐观之情的诗句是,。

(6)同学们正在人生的美好阶段,应珍惜青春年华,发愤努力。

否则年龄越来越大、精力越来越差,正如汉乐府《长歌行》中所说的那样:“,”。

5. 名著阅读。

(4分)(1)《朝花夕拾》是鲁迅先生追忆自己青少年时期生活经历与体验的散文集。

在鲁迅深情的笔下,我们认识了那位“给哥儿买来‘三哼经’”的保姆,我们记住了那位正直善良的异国老师。

(2)他的手在口袋里摸着勃朗宁手枪扁平的枪身,手指习惯地握住了枪柄。

2014--2015学年度人教版八年级第一学期语文期中考试卷

2014--2015学年度人教版八年级第一学期语文期中考试卷

2014--2015学年度第一学期初二年级语文学科期中试卷(2014.11)一、基础知识运用1.下列词语中加点字读音..完全正确的一项是()A.克.扣(kè)淡薄.(báo)提.防(tī) 长途跋.涉(bá)B.憧.憬(chóng) 针灸.(jiū)憎.恶(zēng) 锐不可当.(dāng)C.疮.疤(chuāng)琐屑.(xiè)签.订(qiān) 纷纷溃.退(kuì)D.笨拙.(zhuō)诘.问(jí)震悚.(sǒng) 眼花缭.乱(liáo)2.下列词语书写..有误的一项是()A.惧惮荒谬丰功伟绩富丽堂皇B.渴慕瓦砾大庭广众低眉顺眼C.赃物悼念微不足道世外桃源D.霹雳惊骇风尘苦旅月明风轻3.下列词语加点字意义不相同...的一项是()A.不可名.状名.副其实B.惊骇.骇.破了胆C.滞.留滞.笨D.大庭广众.众.人拾材火焰高4.下列语句没有..语病的是()A.随着北京地铁线路的增多,使北京人民的生活与地铁密不可分。

B.电视节目《爸爸去哪儿》火了,孩子们的表现给观众留下了美好而深刻的印象。

C.只要你细心的品读汉字,认读汉字,就会发现它的神奇之处。

D.三联书店开通24小时营业,平均每天接待顾客约数百人左右,大大方便了读者。

5.下列文学常识搭配有误..的一项是()A.《背影》——朱自清——散B.《阿长与<山海经>》——鲁迅——《呐喊》C.《三峡》——郦道元——北朝D.《观潮》——周密——-宋朝6.下列诗句没有..使用对偶修辞方法的一项是()A.惶恐滩头说惶恐,零丁洋里叹零丁。

B.晓雾将歇,猿鸟乱鸣;夕日欲颓,沉鳞竞跃。

C.黄鹤一去不复返,白云千载空悠悠。

D.浮云游子意,落日故人情。

7.将某些字拆开,经常会引发有趣的联想,让人悟出一些道理。

请依照范例.....,从下面提供的字中选一个拆开....。

.....,说出所悟例:“路”由足和各组成,说明人生的路是靠各自走出来的。

2014-2015学年度上八年级期中考试

2014-2015学年度上八年级期中考试

2014-2015学年度上八年级期中考试数学试卷一、选择题(每题都有唯一正确的答案。

将正确答案的代号填入答题卡,不填入答题卡不记分,每题3分,共36分)1.在-1.414,2,π,2+3,3.212212221…,3.14,17这些数中,无理数的个数为( )A.2B.3C.4D.5 2.下列函数中,y 是x 的正比例函数的是( )A .21y x =-B .3xy =C .22y x =D .21y x =-+3.点P (-1,2-)在( )A .第一象限 B. 第二象限 C. 第三象限 D. 第四象限 4.下列数据中,哪一组不是勾股数( )A 、7 ,24 ,25B 、9 ,40 ,41C 、3 ,4, 5D 、8 , 15, 19 5.下列等式成立的是( )A 、=B 3=C 、532=+ D 2=±6.点P (-3,5)关于x 轴的对称点P 的坐标是( )A .(3,5) B.(5,-3) C.(3,-5) D.(-3,-5)7.正比例函数y=kx (k ≠0)函数值y 随x 的增大而增大,则y=kx+k 的图象大致是( )A B C D8.下列各组二次根式中,是同类二次根式的是( )A.12与21 B.189. 若一个直角三角形的三边分别为a 、b 、c, 22144,25a b ==, 则2c =( )A 、169B 、119C 、169或119D 、13或25 10.下面哪个点在函数y=12x+1的图象上( ) A .(2,1) B .(-2,1) C.(2,0) D.(-2,0) 11.如图,一只蚂蚁从点A 沿圆柱表面爬到点B ,如果圆柱的高为8cm ,圆柱的底面半径为π6cm ,那么最短的路线长是( ) A. 6cm B. 8 cm C. 10 cm D. 10πcm12.如图,点A 的坐标为(1,0),点B 在二、四象限的角平分线上运动,当线段AB 最短时,点B 的坐标为( ) A .(0,0) B .(12,-12) C .(2,-2) D .(-12,12)二、填空题:(每小题3分,共12分) 13.函数y =x 的取值范围是14.将直线y=2x 向上平移1个单位,得到的一次函数的解析式是15.点A 在第三象限,且点A 到x 轴的距离为3,到y 轴的距离为2,则A 点坐标为_______ 16. 如图,设四边形ABCD 是边长为1的正方形,以正方形ABCD 的对角线AC 为边作第二个正方形ACEF ,再以第二个正方形的对角线AE 为边作第三个正方形AEGH ,如此下去……,记正方形ABCD 的边长a 1=1,依上述方法所作的正方形的边长依次为a 2,a 3,a 4,……,则a n =EG三、解答题:(共52分)17.计算:(每小题4分,共16分)(1(2)493721-⨯(3)2)132(- (4)0111.414)()14--+-18.(6分)如图,格点△ABC (1)写出各顶点的坐标 (2)求出此三角形的周长19.(5分)如图,已知l 1∥l 2∥l 3,相邻两条平行直线间的距离均为1,若等腰直角△ABC 的三个项点分别在这三条平行直线上,∠C =90º,求△ABC 的面积.20.( 6分)已知一次函数y=kx+b 的图像经过M (0,2),N (1,3)两点。

2014-2015八年级第一学期期中试卷(含答案)

2014-2015八年级第一学期期中试卷(含答案)

ACB D E 人教版2014-2015学年度第一学期八年级数学期中考试试卷(含参考答案)一、选择题:(本题满分24分,每小题3分)在下列各题的四个备选答案中,只有一个是正确的,请把你认为正确的答案的字母代号填在题后的括号内。

......... 1.下列各组线段能组成一个三角形的是( ).(A)5cm ,8cm ,12cm (B)2cm ,3cm ,6cm (C)3cm ,3cm ,6cm (D)4cm ,7cm ,11cm 2.下列图案是轴对称图形的有( )。

A.(1)(2)B.(1)(3)C.(1)(4)D.(2)(3)(1) (2) (3) (4)3.下列几种说法:①全等三角形的对应边相等;②面积相等的两个三角形全等;③周长相等的两个三角形全等;④全等的两个三角形一定重合。

其中正确的是( )。

A. ①② B. ②③ C. ③④ D. ①④ 4.已知直角三角形中30°角所对的直角边为2㎝,则斜边的长为( )。

A. 2 ㎝B. 4 ㎝C. 6 ㎝D. 8㎝ 5.点M (1,2)关于y 轴对称的点的坐标为 ( )。

A.(—1,2)B.(-1,-2)C. (1,-2)D. (2,-1) 6.如图,∠B=∠D=90°,CB=CD ,∠1=40°,则∠2=( )。

A .40° B. 45° C. 60° D. 50°7. 如图所示,在△ABC 中,已知点D,E,F 分别为边BC,AD,CE 的中点,且S △ABC=4cm 2,则阴影部分的面积等于( )A.2cm 2B.1cm 2C.12cm 2D.1 4 cm 28.已知等腰三角形一个内角是70°,则另外两个内角的度数是( )A.55°, 55°B.70°, 40°C.55°, 55°或70°, 40°D.以上都不对 二 、填空题:(本题满分24分,每小题3分)9.一扇窗户打开后,用窗钩可将其固定,这里运用的几何原理为 。

2014-2015学年上学期八年级语文期中考试试卷

2014-2015学年上学期八年级语文期中考试试卷

2014-2015学年上学期八年级语文期中考试试卷一、积累与运用(22分)1 .下列加点字注音完全正确的一组是()(2分)A. 寒噤.(jìn)锐不可当.(dǎng)杀戮.(lù)纳粹.(suì)B. 文绉绉.(zhōu)涎.水(yán)救济.(jǐ)骇.(hài)人听闻C. 濯清涟.(lián)八分有.(yǒu)奇男有分.(fēn)器皿.(mǐng)D. 甚蕃.(fán)德馨.(xīn)亵.玩(xiâ)蹒跚..(pánshān)2 下列词语全对的一组是()(2分)A.仄歪张惶失措名副其实精疲力竭B.荒谬不可名状微不足道大庭广众C.惧惮眼花缭乱情郁与中月明风清D.狼籍触目伤怀莫名其妙富丽堂皇3.下列句子中加点成语使用恰当的一项是()(2分)A.小强的动人事迹经过老师的大肆渲染....,成了校园里的热门话题。

B.他们俩操作计算机非常熟练,已经达到了为所欲为....的程度。

C.我们必须正确看待自己,既不能自高自大,也不能自暴自弃....。

D.小陆真是别有用心....,制作的飞机模型与众不同,令人叫绝。

4.下列句中没有语病的一句是( ) (2分)A.为了防止震后疫情发生,玉树灾区领导要求行政单位进一步加强管理,制定严密的防范措施。

B.我们青少年一定要肩负起建设伟大繁荣富强的社会主义强国。

C.通过大家的帮助,使他学习成绩有了很大的提高。

D.能否取得良好的学习成绩,关键在于勤的程度。

5.仿写句子。

(每空一分,共3分)我爱春天,爱她的莺歌燕舞,爱她的绿意盎然;我爱,,。

6.请给下面这则消息拟写一个恰当的标题。

(3分,限18字以内)【襄阳汉江传媒网消息】记者获悉,19岁的襄阳姑娘张丽婷已经入选中国女子篮球国家队备战伦敦奥运会的16人大名单,并于昨日抵达美国,准备即将开始的热身赛。

张丽婷的父亲张庆林告诉记者,目前张丽婷的状态很好,她的实力也得到了教练的认可。

2014-2015年下学期八年级期中考试数学试卷附答案

2014-2015年下学期八年级期中考试数学试卷附答案

2014-2015年下学期八年级期中考试数学试卷总分:120分 时量:120分钟一.精心选一选,旗开得胜(每小题3分,共30分)1. 把直角三角形的两直角边均扩大到原来的两倍,则斜边扩大到原来的( )A.8倍B.4倍C. 2倍D. 6倍2.两个直角三角形全等的条件是( )A. 一锐角对应相等B.两锐角对应相等C.一条边对应相等D.两条边对应相等3.下面的性质中,平行四边形不一定具有的是( )A.内角和为360°B.邻角互补C.对角相等D. 对角互补4.如图,如果平行四边形ABCD 的对角线AC 、BD 相交于点O ,那么图中的全等三角形共有( )A.1对B.2对C.3对D.4对ODCB A第4题图 5.□ABCD 的对角线交于点O ,且AB=5,△OCD 的周长为23,则□ABCD 的两条对角线的和是 ( )A.18B.28C.36D.466. 若点M(x ,y )满足x+y=0,则点M位于 ( )A. 第一、三象限两坐标轴夹角的平分线上;B. x 轴上;C. 第二、四象限两坐标轴夹角的平分线上;D. y 轴上。

7.已知x 、y 为正数,且|42-X |+(y 2-3)2=0,如果以x ,y 的长为直角边作一直角三角形, 那么以此直角三角形的斜边为边长的正方形的面积为( )A.5B.25C.7D.158.在平面中,下列说法正确的是( )A.四个角相等的四边形是矩形B.对角线垂直的四边形是菱形C.对角线相等的四边形是矩形D.四边相等的四边形是正方形9.下列图形中,既是轴对称图形又是中心对称图形的有( )A.4个B.3个C.2个D.1个第9题图 第10题图10. 如图所示,矩形ABCD 的对角线AC ,BD 相交于点O ,CE ∥BD ,DE ∥AC .若 BD = 6,则四边形CODE 的周长是( ) A .10 B .12 C .18 D .24二.细心填一填,一锤定音(每小题3分,共30分)11. 在Rt ∆ABC 中,∠C=90°,∠A=65°,则∠B= .D CA B 12一个等腰直角三角形中,它的斜边与斜边上的高的和是18cm ,那么斜边上的高为 cm .13.如图,已知□A BCD 中,AB=4,BC=6,BC 边上的高AE=2,则DC 边上的高AF 的长是 .C F ED A B C D FEA B C D1A B -2-10 第13题图 第15题图 第17题图14.□ABCD 的周长为60cm,其对角线交于O 点,若△AOB 的周长比△BOC 的周长多10cm, 则 AB= cm.15.如图,已知在□ABCD 中,AB=4cm,AD=7cm ,∠ABC 的平分线交AD 于点E ,交CD 的延长线 于点F ,则DF= cm.16. 一个多边形的每一个外角等于30°,则此多边形是 边形,它的内角和等于 。

2014-2015第二学期八年级期中试题

2014-2015第二学期八年级期中试题

2014—2015学年度第二学期期中检测八年级物理试题(满分60分,时间60分钟)第Ⅰ卷 (选择题共20分)一、选择题(每小题2分,共20分,每小题只有一个正确选项,请把正确选项填在第Ⅱ卷表格内)1. 在国际单位制中,压强的单是以哪位科学家的名字命名的()A牛顿 B.帕斯卡 C.托里拆利 D伽利略2.关于运动与力的关系,下列说法中正确的是()A.行驶中的汽车,若突然关闭发动机,车就立即停止运动B.在平衡力作用下,物体一定静止C.物体运动速度改变时,不一定受到力的作用D.物体运动速度改变时,一定受到力的作用3.教室里悬挂着的电灯处于静止状态(如右图所示),假如悬挂他的绳子突然断了,它将()A.加速下落B.匀速下落C.保持静止D.可以向各个方法运动4.图中四项运动包含了一些物理知识,下列描述正确是()A.跳水员在空中下落的过程中受到平衡力的作用B.足球运动员对球的作用力和球受到的重力一对相互作用力C.举重运动员将杠铃举在空中静止时,他受到的重力和地面对他的支持力是一对平衡力D.篮球运动员抛出的篮球在空先上升后下落,是因为力改变了篮球的运动状态5.物理知识在生产生活中有许多应用,下列描述正确的是()A.书包带做得宽是通过减小受力面积来增大B.大气对吸盘的压力与勺子的重力大小相等C.压强排水管的U形“反水弯”是一个连通器D.飞机机翼上方的空气流速快,压强大6.如图所示,托里拆利实验中,若将玻璃管由竖直变成倾斜时,则()A.管内液柱的高度变大,长度变大B.管内液柱的高度不变,长度变大C.槽内汞面的位置不变D.测得大气压值偏大7.如图所示是家用煤气灶灶头的示意图,使用煤气灶时,打开煤气阀门,拧动点火装置,煤气和空气在进口处混合流向燃烧头被点燃,而煤气不会从进口处向空气中泄漏,其原因是()A.进口处煤气流速小,压强大于大气压强B.进口处煤气流速小,压强小于大气压强C.进口处煤气流速大,压强大于大气压强D.进口处煤气流速大,压强小于大气压强8.如右图所示,是一位先生巧用物理知识将帽子送给楼上女士的情景。

2014-2015上学期八年级期中考试题

2014-2015上学期八年级期中考试题

姓名:______________ 班级:____________日期:______________ 分数:____________ 一.从方框中选择合适的单词,并用其正确形式填空。

(5分)1. ______ Jim ______ computer games last night?2. My home is the _____________ our school, so I’m always the first to get to school.3. Of all the toys, he takes the toy car the ________________.4. There is no ____________ between the two books.5. The boy ______________ like a panda at the party yesterday.二. 单项选择(30分)( ). 1. I have quite ________ friends. I never feel lonely.A. fewB. a fewC. littleD. a little( ) 2. There is _________ in today’s homework. I can finish it quickly.A. difficult nothingB. difficult anythingC. nothing difficultD. anything difficult ( ) 3. Your sister isn’t ________ to go to work.A. big enoughB. old enoughC. enough oldD. too old( ) 4. What a heavy rain it was! We decide ________.A. to go outB. not to go outC. to not go outD. not going out( ) 5. He didn’t have ______ money for a taxi, _____ he walked back to the hotel.A. any; andB. much; becauseC. any; soD. some; so( ) 6. ________ does your brother watch TV? --- Three times a week.A. How oftenB. How longC. How many timesD. How old( ) 7. Did you go to the cinema to see 3D Titanic last night?--- No, I _____ go to the cinema. The tickets are too expensive.A. hardlyB. nearlyC. stillD. only( ) 8. It’s dangerous _______________ with the wild animal.A. for us to playB. of us playingC. for us playingD. of us to play( ) 9. Good food and exercise ______ me to study better.A. helpB. helpsC. helpingD. to help( ) 10. I think drinking milk everyday is good _____ our health. --- Yes, I agree ____ you.A. to; toB. with; toC. at; withD. for; with( ) 11. How about going to school by boat, Li Lei?--- Good idea. That must be _______ than taking a bus.A. interestingB. much interestingC. a lot more interestingD. more much interesting ( ) 12. The talk show on TV is very popular. It often makes people ________.A. laughB. laughingC. to laughD. laughed( ) 13. Which of the two T-shirts will you take?--- I will take ____. One is for my brother and the other is for myself.A. eitherB. bothC. allD. neither( ) 14. Let’s go shopping at the new mall. --- Why not shop online? It’s _______.A. expensiveB. more expensiveC. less expensiveD. the most expensive ( ) 15. John is ________ than Peter.A. funnierB. funC. funnyD. more funny( ) 16. He is better ___________ than me.A. at swimmingB. in swimmingC. on swimmingD. for swim( ) 17. The Changjiang River is the _____________ in the world.A. third longestB. three longestC. the three longestD. third long( ) 18. My school is different _______ theirs. It has many after-school clubs.A. inB. byC. ofD. from( )19. It’s summer now, the weather is getting ________.A. higher and higherB. lower and lowerC. hotter and hotterD. colder and colder ( ) 20. The weather in Harbin is colder than _______.A. it in BeijingB. BeijingC. in BeijingD. that in Beijing( ) 21. We hope _____ good grades in the coming exam.A. getB. gettingC. to getD. that get( ) 22. Jim wants to travel because he enjoys _______ people and ______ new places.A. to meet; to seeB. meeting; seeingC. meeting; to seeD. to meet; seeing( ) 23. What could I get my father for father’s Day? --- _______ getting him a tie?A. Why notB. Let’sC. Why don’tD. What about( ) 24. What do you think of Cindy? --- _____________.A. She loves wearing sunglasses.B. She like reading English.C. She’s cute, and I like her very muchD. She often goes to school on foot.( ) 25. Who teaches _______ English? --- No one. I teach _______.A. you; myselfB. your; myselfC. you; meD. your; mine( ) 26. How was your vacation? --- Pretty _____! I ______ the science museum with my parents.A. good; visitB. well; visitedC. good; visitedD. better; visited( ) 27. The teacher asked the students to ________ a story about their families.A. get upB. turn upC. clean upD. make up( ) 28. What is our head teacher like? --- Oh, he is very kind _____ he looks very serious.A. becauseB. althoughC. ifD. when( ) 29. The internet is very helpful. We can get lots of _______ from it.A. pictureB. informationC. messageD. map( ) 30. We have to stay at home ________ the heavy snow.A. becauseB. althoughC. butD. because of三. 完形填空(10分)If you travel to some towns in Thailand, you’ll be lucky enough to be served by guides- monkeys. The monkeys are always ready to help you. When you are 1 , you only have to point at your own stomach and they will show you to a restaurant. 2 you are tired, put your hands behind your headand the monkeys will take you to a 3 . You don’t feel 4 when they put their hands in front of you after they have 5 you. They just hope you can give them a little money as a tip. After you have given them the money, they’ll wave their hands to say 6 .Believe it or not, these monkeys are graduates of the School for Monkeys in Thailand, where they were 7 for one year. These monkey 8 are not the only ones in the world. Some are now being trained as 9 in an American medical college. These monkeys are expected to 10 patients in hospital after they graduated from the school.( ) 1. A. thirsty B. full C. hungry D. sad( ) 2. A. Because B. If C. Though D. Before( ) 3. A. restaurant B. hospital C. school D. hotel( ) 4. A. surprised B. lonely C. glad D. worried( ) 5. A. helped B. fed C. caught D. watched( ) 6. A. wish B. luck C. goodbye D. hello( ) 7. A. told B. trained C. closed D. learned( ) 8. A. students B. teachers C. doctors D. kings( ) 9. A. animals B. soldiers C. guides D .nurses( )10. A. look for B. look after C. look at D. take care四. 阅读理解(40分)A) Many boys and girls love to watch TV. They spend many hours a day in front of the TV sets. But many parents let their children watch TV only in special time.TV shows are like books or movies. There are many kinds of TV shows, such as sitcoms, operas, sports, shows, fashion shows, etc. A child can learn good things and bad things from them. Some shows help children to know the news all over the world. Children don’t have go to the zoo to see animals. Boys and girls can see sitcoms, sports shows and game shows at home. Some shows teach children how to cook or how to use tools.Many boys and girls think it is fun to watch TV, but it is also fun to read books, play games or to visit friends.( ) 1. Many boys and girls spend __________________.A. little time watching TVB. a few hours watching TVC. the whole day watching TVD. many hours a day in front of the TV sets.( ) 2. Many parents __________________.A. don’t let their children watch TVB. ask their children watch TV in special timeC. let their children watch TV in special timeD. let their children watch TV at anytime( ) 3. From TV, boys and girls can ___________.A. learn good things and bad thingsB. learn nothingC. learn only good thingsD. learn only bad things( ) 4. Kids like to watch TV, because _____________.A. it is funB. they have nothing to doC. it is excitingD. it is boring( ) 5. How does the writer like the TV shows?A. They are good for childrenB. They are bad for childrenC. Some of them are good for children, others are not.D. All the TV shows are good for children B) I have a summer camp with my classmates last year.Early in the morning, we gathered at the station. After saying goodbye to our parents, we got on the bus. It took us more than two hours to arrive at the campground.We got off the bus cheerfully. We jumped and ran all over the place. laughing and shouting. It was the first time for us to be away from our parents. Some of us started to feel homesick.(想家)However, when the dancing party bagan, the homesickness was gone. The next day, everybody rushed to the boating class. At first, my friends and I worked hard, but the boat won’t listen to us and kept going round and round. Then the teacher taught us how to work together. After many tries(尝试)did much better.Swimming class was my favorite. It was about the hottest time of a day and the best to stay in the cool water. The swimming teacher was a funny man, and during the class he often made us laugh happily. I felt relaxed.During the week I learned a lot of things and made many few friends. I also learned how to take care of myself.( ) 6. They got to the campground ________.A. on footB. by bikeC. by busD. by train ( ) 7. Where did they gather?A. On the campground.B. At home.C. In the classroom.D. At the station. ( ) 8. Why was swimming class the writer’s favorite?A. Because it was good to stay in the cool water when it was hot.B. Because the swimming teacher was funny.C. Because the writer felt relaxed during the class.D. All of the above.( ) 9. Which sentence is NOT true?A. The children were happy to be away from their parents.B. Their homesickness lasted for long.C. It was teamwork to go boating.D. They camped for a week.( ) 10. Which is the best title for the passage?A. Learned a lotB. Boating and swimmingC. On the campgroundD. My first summer campC) Good health is very important. Everyone should do all he/she can to stay healthy. Being in good health means having both body and mind in good order and being free from illness and pains.Good food , plenty of water, cleanness and plenty of rest all help in keeping our body working as it should. Food does many things for our bodies. It gives what we need for keeping good health. It gives us energy for working and playing. No food gives everything we need, so we should eat different kinds of foods. Having enough to eat is not the same as having the right food.The food we drink helps wash away wastes inside our bodies. It also makes up for the water we lose when we perspire (出汗). More than half of the body is actually water.We feel better and look better when we are clean. A bath every one or two days is a good habit for most of us. Brushing our teeth is an important part of keeping clean and healthy.Sleep is the best kind of rest. Growing children need more sleep than grown-ups.阅读短文,判断正(√)误(×)( ) 11. We are healthy when both our mind and body work well.( ) 12. We should have foods of different kinds because different foods taste different.( ) 13. We drink water in order to make up for wastes in our bodies.( ) 14. We can have the best rest when we are sleeping.( ) 15. The passage is about how to be healthy.D. 任务型阅读My name’s Anna. I am a heavy and tall girl with long hair. I like to have friends who are different ___①___ me. My best friend is Wang Fang. She comes from China. She is shorter than me. And she has longer hair than me. ②她比我外向的多。

2014-2015学年度第一学期八年级物理期中考试试题

2014-2015学年度第一学期八年级物理期中考试试题

20.通常情况下,人耳能听到声音的频率范围是20~ 20000HZ,其频率高于20000HZ的声波称为 超声波。请 你列举一个人们利用这种声波例:B超(超声波打结石等) 。
21.如图3所示是几种声音输入到示波器上时显示的形 甲、乙 ; 其中音调相同的是________ 甲、丙 。 响度相同的是________ 22.初春的早晨会看到大量的露水,露水是由水蒸 气 液化 形成的(填写物态变化名称),在这个过程中水 蒸气会 放出 (填“吸收”或“放出”)热量。
一、选择题(每题2分,共36分,每小题只有一个正 确答案,请将正确的序号填入题后表格内对应位置,否 则不给分。) 1.与一只粉笔的直径和人步行的速度最接近的值分别是 A、1cm 和4.5km/h B、1dm和1.2m/s ( A ) C、1m和1.5m/s D、1mm和1.2m/s
2..如图,该物块长度应记为 A.3.85cm B.1.85cm C.3ቤተ መጻሕፍቲ ባይዱ85mm D.1.85mm (B)
18.如图2是小明绘制的某种物质熔化时的温 度时间图象。下面说法正确的是 ( D ) A.图线中间的水平线段表示这段时间内物体 不吸热 B.图线可能是冰的熔化过程 C.图线可能是蜡的熔化过程 D.图线表示晶体的熔化过程
二、填空题(每空1分,共15分)
19.“红色摇篮、绿色家园”,是井冈山展现出来的独 特魅力。“五一”期间,苹苹乘坐的汽车刚刚进入井冈山 景区,便有一种“车行绿色中,风景扑面来”的感觉,实 在是令人心旷神怡。“车行绿色中,风景扑面来”所选的 车 树(草地) 参照物分别是 _______ 与______。
(3)小凡同学猜想水蒸发快慢还可能与水的多少有关, 于是继续进行了如下探究:在相同环境下的两块相同的玻 璃板上分别滴上一滴和两滴水(如图6)。结果发现甲图 中水先蒸发完,于是他得出结论:水蒸发快慢与水的多少 有关,水越少蒸发越快.从实验设计环节看,他没有控制 水的 表面积(选填“多少”或“表面积”)相同;从得 出结论环节看, “根据谁先蒸发完,判断谁蒸发快”是 不正确 否正确? (选填“正确”或“不正确”),理由 是 只有在水的质量相同时,先蒸发完的蒸发的才快. 。

2014-2015八年级下册数学期中考试试卷

2014-2015八年级下册数学期中考试试卷

2014/2015学年度第二学期八年级期中考试 数学试题题号 一 二 三 四 五 六 七 总分 得分注意事项:本卷满分150分,计23小题,考试时间120分钟.一、选择题(本题共10小题,每小题4分,满分40分)请将正确选项前的字母填在表格中相应的位置. 题号 1 2 3 4 5 6 7 8 9 10 答案1.若a 是二次根式,则( )A. a >0B. a <0C. a ≥0D. a ≤02.下列计算错误..的是 ( ) A .14772⨯= B .60302÷= C .9258a a a += D .3223-=3.已知四边形ABCD 是平行四边形,则下列各图中∠1与∠2一定不相等的是 ( )4.直角三角形两直角边边长分别为6cm 和8cm ,则连接这两条直角边中点的线段长为( ) A .10cm B .3cm C .4cm D .5cm 5.下列各式中,一定能成立的是( )。

A . 122+-x x =x-1 B .22)(a a = C . 22)5.2()5.2(=- D .3392+⋅-=-x x x6.在菱形ABCD 中,AC 与BD 相交于点O ,则下列说法不正确的是( ) A .AO ⊥BO B .∠ABD=∠CBD C .AO=BO D .AD=CD7.下列命题中是假命题的是( )学校:____________ 姓名:____________ 班级:____________ 考场座位号:___________—————————————————密 封 线 内 不 要 答 题——————————————————————————————————A .△ABC 中,若∠B=∠C -∠A ,则△ABC 是直角三角形.B .△ABC 中,若a 2=(b+c)(b -c),则△ABC 是直角三角形.C .△ABC 中,若∠A ∶∠B ∶∠C=3∶4∶5,则△ABC 是直角三角形.D .△ABC 中,若a ∶b ∶c=5∶4∶3,则△ABC 是直角三角形.8.如图,在△ABC 中,点E ,D ,F 分别在边AB ,BC ,CA 上,且DE ∥CA ,DF ∥BA ,则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 平分∠BAC ,那么四边形AEDF 是菱形D .如果AD ⊥BC 且AB =AC ,那么四边形AEDF 是正方形第8题图9.已知,如图矩形ABCD 中,AB=3cm ,AD=9cm ,将此矩形折叠,使点B 与点D 重合,折痕为EF ,则△ABE 的面积为( )第9题图 第10题图A . 3cm 2B . 4cm 2C 6cm 2D . 12cm 210.如图,矩形ABCD 的面积为20cm 2,对角线交于点O ;以AB 、AO 为邻边做平行四边形AOC 1B ,对角线交于点O 1;以AB 、AO 1为邻边做平行四边形AO 1C 2B ;…;依此类推,则平行四边形AO 4C 5B 的面积为( )A .45 cm 2 B .85 cm 2 C .cm 2D .cm 2二、填空题(本题共4小题,每小题5分,满分20分)11. 在实数范围内分解因式:x 4-9=________12.已知直角三角形的两边长为3、5,则另一边长是13.已知231,3a b ab -=-=,则(1)(1)a b +-=14. 如图,在平面直角坐标系中,矩形OABC 的顶点A 、C 的坐标分别为(10,0),(0,4),点D 是OA 的中点,点P 在BC 上运动,当△ODP 是腰长为5的等腰三角形时,点P 的坐标为 .第14题图三、(本题共2小题,每小题8分,满分16分)15. (1)2484554+-+ (2)()1021125.3316-⎪⎭⎫ ⎝⎛+--+⨯π16.先化简,再求值:2222211()a ab b a b a b-+÷--,其中21,21a b =+=-四、(本题共2小题,每小题8分,满分16分)17. “中华人民共和国道路交通管理条例”规定:小汽车在城街路上行驶速度不得超过km/h.如图,一辆小汽车在一条城市街路上直道行驶,某一时刻刚好行驶到路对面车速检测仪正前方m 处,过了2s 后,测得小汽车与车速检测仪间距离为m ,这辆小汽车超速了吗?18. 现有5个边长为1的正方形,排列形式如图①,请把它们分割后拼接成一个新的正方形.要求:在图①中画出分割线并在图②正方形网格图(图中每个小正方形的边长均为1)中用实线画出拼接成的新正方形.五、(本题共2小题,每小题10分,满分20分)19.站在水平高度为h 米的地方看到可见的水平距离为d 米,它们近似地符号公式为58hd 。

2014-2015学年度第二学期期中考试 八年级数学试卷

2014-2015学年度第二学期期中考试 八年级数学试卷

数学试卷 第1页 (共4页 ) 数学试卷 第2页 (共4页)2014-2015学年度第二学期期中考试八年级 数学试卷3分,共 30 分)的相反数是 ( )A. C. 下列二次根式中,最简二次根式是( ) A.51B.5.0C.5D.50 下列各式成立的是 ( ) A.2)2(2-=-5=± C.6=±2=如图所示,在数轴上点A 所表示的数为a ,则a 的值为 ( ) 51--B. 51-C. 5-D. 51+-计算)2012)(3252(+-的结果是( )A.32B.16C.8D.4在Rt △ABC 中,∠C =90°,a =12,b =16,则c 的长为( ) A.26 B.18 C.20 D.21如图,ABCD 中,对角线AC 、BD 交于点O ,点E 是BC 的中点.若OE=4 cm ,AB 的长为 ( ) A. 4 cm B.8 cm C.2 cmD.6cm 如果一个平行四边形的两条对角线相等,那么这个四边形是 ( ) A.平行四边形 B.菱形 C.矩形 D. 正方形已知a 、b 、c 是三角形的三边长,如果满足()010862=-+-+-c b a ,则三角形的形状是( )A.底与边不相等的等腰三角形 B.等边三角形 C.钝角三角形 D.直角三角形如图,正方形ABCD 的边长为4,点E 在对角线BD 上,且∠BAE =22.5 º,EF ⊥AB ,垂足为F ,则EF 的长为 ( ) A .1 B . 2 C .4-2 2 D .32-4 二、填空题(每小题4分,共32分.请将答案直接填在横线上) 11.ABCD 中一条对角线分∠A 为35°和45°,则∠B= __ 度.12. 式子x . 13.利用公式2(0)a a =≥,在实数范围内把7-x 2分解因式为 .14. 在平面直角坐标系中,点A (-1,0)与点B (0,2)的距离是_______.15. 已知菱形的两条对角线长为8cm 和6cm,那么这个菱形的周长是 cm,面积是 cm 2. 16. 如图,矩形ONEF 的对角线交于点M ,ON 、OF 分别在x 轴和y 轴上,O 为坐标原点,点E 的坐标为(4,3),则点M 的坐标为__ ____.17.如图,将四根木条钉成矩形木框变形为平行四边形ABCD 的形状,并使其面积变为矩形面积的一半,则平行四边形ABCD 的最小内角的大小为 .18.如图,将菱形纸片ABCD 折叠,使点A 恰好落在菱形的对称中心O 处,折痕为EF.若菱形ABCD 的边长为2cm ,∠A=120°,则EF= .三、解答题(解答时,应写出必要的文字说明、证明过程或演算步骤. 共52分) 19.计算:(每小题4分,共16分)(1)272833-+- (2)22)2664(÷-(3)((2211 (4)220.(本小题8分)如图是一块地,已知AD =4m,CD =3m, AB =13m, BC =12 m , 且CD ⊥AD,求这块地的面积.B A16题图17题图第10题图数学试卷 第3页 (共4页) 数学试卷 第4页 (共4页)DN21. (本小题8分)如图,已知△A BC 中,∠ACB=90 º,BC=6cm ,AC=8cm. (1)用直尺和圆规按下列要求作图:(保留作图痕迹,不写作法) 作线段AB 的垂直平分线,分别交AB 、AC 于点D 、E. 连接CD. (2)试求CD 和AE 的长.22.(本小题10分) 如图,O 为矩形ABCD 对角线的交点,DE ∥AC ,CE ∥BD. (1)试判断四边形OCED 的形状,并说明理由;(5分) (2)若AB =6,BC =8,求四边形OCED 的面积.(5分)23.(本小题10分) 已知:如图,在矩形ABCD 中,M 、N 分别是边AD 、BC 的中点,E 、F 分别是线段BM 、CM 的中点;(1)(4分)求证:△ABM ≌△DCM ;(2)(5分)判断四边形MENF 是什么特殊四边形,并证明你的结论;(3)(1分)当AD :AB=____________时,四边形MENF 是正方形(只写结论,不需证明)。

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2014-2015上学期八年级期中英语试卷听力部分(25分)I.听句子,选出句中所含信息1.A.building B.museum C.camp2.A.housework B.homework C.however3.A.short B.shorter C.shortest4.A.E2CR3F B.B2CR7F C.B2OR6F5.A.sea B.move C.action movieII.听句子,选择最佳答语6.A.No,it’s boring. B.It was good. C.Yes,it was.7.A.Twice a week. B.Two hours C.At six8.A.Tom is B.Tom does. C.Tom has9.A.Yes,he is. B.No,he isn’t. C.Yes,it is10.A.Basketball B.English C.Talk showsIII.听对话和问题,选择正确答案11.A.She played volleyball. B.She played basketball. C.She stayed at home.12.A.45 B.25 C.3513.A. Sometimes. B. Never. C. Always.14.A.Yes,they do. B.No,they don’t. C.We don’t know.15.A.Pears B.Apples C.BananasIV.听长对话,完成16-18小题。

16.What does Mary think of the movie Gone with the Wind?A.It’s boring.B.It’s scary.C.It’s exciting.17.What kind of movie is Rush Hour?A.A comedy.B.A sitcomC.An action movie18.What movie will they go to see today?A.My Father’s Birthday.B.Mr. Bean.C.Rush Hour.V.听一段材料,回答19-20两题19.What happened to the 4-year-old girl yesterday?A.She was brought home.B.She lost her way.C.She met her parents.20.Who looked after her in the next village?A.Her parents.B.A nice mother.C.A gentleman.VI.听短文,完成下列句子(每空一词)21.They will leave by bus at eight in the morning and return at about_______.22.The students need to write a______after the trip.23.The students have to read the_______tonight.24.The teacher asks the students not to pick any plants or catch any small_______.25.A field trip is like a ______.The more you put in it, the more you will get out of it.笔试部分(95分)VII.单项选择26. Can we_____Beijing on time or not?A.arrive inB.getC.reach toD.arrive at27.---Can’t you hear_____? ---No, I can hear_____.A.anything; nothingB.anything; anythingC.something; nothingD.something; something28.Miss Zhang didn’t come to work______her illness.A.becauseB.soC.andD.because of29.The room isn’t____for us to live in.A.enough bigB.big enoughC.enough smallD.small enough30.My mother and I _____at my home ____that snowy night.A.were; atB.was; atC.were; onD.was; on31.---That’s Gina, isn’t it? ---______.A.Yes, she isB.No,she isn’tC.Yes,it isn’tD.No,it isn’t32.---How often do you go to the movies? ---____________.A. SometimeB.Some timeC. Some timesD.Sometimes33.The weather was rainy,so they decided_____to the mountains.A.not goB.not goingC.not to goD.not to going34._______it is rainy today,______he still works outside.A.Although;butB.But; althoughC./; althoughD.Although; /35.You will be______if you eat______and take______exercise.A.health; less; moreB.healthier; more; lessC.health; more; lessD.healthier; less; more36.---Li Hua speaks Japanese_____Xiao Lin.---I don’t think so. I think Li Hua does _____better than Xiao Lin.A.as good as; a lotB.as well as; muchC.as good as; a littleD.as well as; more37.Which city is_____from Beijing,Guangzhou,Shanghai or Nanjing?A.farB.fartherC.farthestD.the farthest38.I am not very talented___language. Could you give me some advice?A.toB.atC.withD.in39.I hope_______.A.her to come to my homeB.she come to my homeC.her come to my homeD.she can come to my home40.---Do you mind if I turn on the TV? ---_____. My father is sleeping.A.Better notB.Not at allC.No,I don’t mindD.That’s all right. VIII.完形填空If you stop and think about them, you’ll find that birds are amazing animals.Here are a few kinds of birds in the world.The Smallest BirdsHummingbirds are the 41 of all birds. Some of the small birds are only two inches long. Their eggs are about the 42 of jelly beans(果冻豆). Hummingbirds are special in another kind of way. They can still fly as they 43 flower honey from the inside of a flower. They can stay in one place without resting their feet on anything as they enjoy their meal. After 44 their meal, these birds back away from the flower. They are the only birds that can fly backwards.The Fastest BirdsSome birds fly fast. A bird called Swift is one of these birds. Swifts 45 most of their time flying. They may be the fastest 46 in the world. Some can fly more than 100 miles an hour. Peregrine falcons are another kind of fast birds. They can fly 47 ---200 miles an hour.Birds That SwimNot all birds can fly. Penguins, for example, are great swimmers. They can 48 at speeds over 25 miles an hour and are the fastest birds that swimThe Largest BirdsOstriches are the largest birds living today. 49 they can’t fly, they are one of the fastest birds on land. Ostriches have the largest eyes of all animals that live on 50 . Their eggs are also the largest of all birds. They are much bigger than chicken eggs.41.A.fastest B.smallest rgest D.slowest42.A.size B.color C.pair D.speede B.see C.drink D.eat44.A.cooking B.buying C.starting D.finishing45.A.pay B.spend C.cost D.take46.A. birds B.chickens C.monkeys D.lions47.A.slowly enough B.enough slowly C.fast enough D.enough fast48.A.fly B.jump C.run D.swim49.A.But B.Although C.Because D.So50.A.sea B.sky nd D.shipIV.阅读理解A. MondayB. TuesdayC. WednesdayD. Thursday52. You have ______ Chinese classes every week.A. 3B. 4C. 5D. 653. How long will you rest for lunch-time?A. 60 minutesB. 70 minutesC. 80 minutesD. 90 minutes54. You have ______classes only on Monday and Wednesday?A. artB. musicC. biologyD. P.E.55.You can send and receive e-mail from ____to ____ in computer class on Friday.A. 8:00; 9:00B. 8:55; 10:45C. 10:00; 11:40D. 2:00; 3:40BMicheal Jackson is one of the most popular singers in the USA.He was born in Indiana in August,1958. He has eight brothers and sisters,and he is the seventh child. In 1963,Jackson and his brothers started a band when he was five. He is the lead singer of the band. American people began to know him in the 1960s. From 1972,he began to make his own CDs. He sang and danced well, and young people liked him very much. In 1983,the song Thriller made him one of the most popular singers in the USA. And his songs were also very popular in China. Many young people liked him and his pop songs very much. Jackson planned to perfom the This is it concert tour to over one million people in London, from July 13, 2009 to March 6,2010.The concerts could bring him up to 45 million pounds. But he died in Los Angeles on June 25,2009.Fans around the world are mourning(哀悼)the passing away of Michael Jackson. Hundreds of his fans got together in Beijing’s Houhai Park. The memorial(追悼会)event began at 9.00p.m. His fans lit up candles and held posters of Michael Jackson while singing his songs to show their sadness.56.Who is Micheal Jackson?A. He is a student.B. He is a singer.C. He is a teacher.D. He is a clerk.57. How old was Micheal Jackson when he started the band with his brothers?A.He was twenty-one.B.He was sixty.C.He was five.D.He was forty.58. When did he begin to make his own CDs?A. From 1958.B. From the 1960s.C. From 1972.D. From 1983.59. Why did young people like him?A. Because he sang and danced wellB. Because he had a lot of money.C. Because he was from England.D.Because he was a thriller.60. Which is TRUE according to the passage?A.Jackson is an English singer and dancer.B.Jaclson died in Los Angeles.C.Jackson is a very healthy singer.D.Jackson’s parents are both doctors.CAlfred Nobel, the great Swedish inventor and industrialist, was born in Stockholm on October 21, 1833, but moved to Russia with his parents in 1842, where his father, Immanuel, made a strong position for himself in the engineering industry. Immanuel Nobel invented landmine and made a lot of money from the government during theCrimean War, but went bankrupt(破产)soon after. Then, the family returned to Sweden in 1859, where Alfred began his own study of explosives in his father’s lab. He had never been to school or university but had taught himself, and by the time he was twenty, he became a skillful chemist and excellent linguist, speaking Swedish, Russian, German, French and English. He built up over 80 companies in 20 different countries. He was always searching for a meaning to life. He spent much time and money working on how to end the wars, and the peace between nations, until his death in Italy in 1896. His famous last will, in which he left money to provide prizes for outstanding work in physics, chemistry, physiology, medicine, literature and peace, is a memorial to his interests and ideas. And so, the man is remembered and respected long after his death.61. Where was Alfred Nobel born? He was born in ________.A. SwedenB. StockholmC. RussiaD. Moscow62. What did Immanuel Nobel invented during the Crimean War?A. The engineering industry.B. A strong position.C. Landmine.D. Study of explosives.63. Why did Alfred Nobel return to Sweden ? Because his father ________.A. went bankruptB. was put in prisonC. was illD. died64. How many companies did Alfred Nobel build up? He built up ______ companies in different countries.A. 20B. 40C. 60D. 8065. What was Alfred Nobel always searching for? ________.A. More time and more moneyB. A meaning to lifeC. How to end the warD. The peace between nationsDOnce Goethe, the great German poet, was walking in a park. He was thinking about something when he noticed he came to a very, very narrow road. Just at that time, a young man came towards him from the other end of the road. It was too narrow for both of them to pass through at the same time. They stopped and looked at each other for a while. Then the young man said rudely, “I never make way for a fool.” But Goethe smiled and said, “I always do.” Then he turned back quickly and walked towards the end of the road.根据短文内容,回答问题。

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