首页 > 教学范文 > 试题试卷

初二数学期末测试题

动力火车

【简介】感谢网友“动力火车”参与投稿,以下是小编为大家准备的初二数学期末测试题(共10篇),希望对大家有帮助。

篇1:初二数学期末测试题

初二数学期末测试题

一.选择题(每小题3分,共30分)

1、一个三角形的两边长分别为3cm和7cm,则此三角形的第三边的长可能是

A.3cm B.4cm C.7cm D.11cm

2、下列运算中,正确的是。

A.aa2=a2 B.(a2)2=a4

C.a2a3=a6 D.(a2b)3=a2b3

3、已知点A,D,C,F在同一条直线上,AB=DE,BC=EF,要使△ABC≌△DEF,还需要添加一个条件是()

A.∠BCA=∠FB.∠B=∠E

C.BC∥EFD.∠A=∠EDF

4、下列各式由左边到右边的变形中,是分解因式的为()。

A、a(x+y)=ax+ay  B、x2-4x+4=x(x-4)+4

C、10x2-5x=5x(2x-1) D、x2-16+3x=(x-4)(x+4)+3x

5.下列命题中,假命题是()

A.9的算术平方根是3 B.的平方根是±2

C.27的立方根是±3 D.立方根等于﹣1的实数是﹣1

6、下列命题中,假命题是()

A.垂直于同一条直线的两直线平行

B.已知直线a、b、c,若a⊥b,a∥c,则b⊥c

C.互补的角是邻补角

D.邻补角是互补的角

7、△ABC中边AB的垂直平分线分别交BC、AB于点D、E,AE=3cm,△ADC的周长为9cm,则△ABC的周长是()

8、使分式有意义的x的取值是()

A.x≠0B.x≠±3

C.x≠-3D.x≠3

9、点M(3,-4)关于x轴的对称点的坐标是()

A.(3,4)B.(-3,-4)

C.(-3,4)D.(-4,3)

10、点P的坐标为(2﹣a,3a+6),且到两坐标轴的距离相等,则点P的坐标为()

A.(3,3)B.(3,﹣3)C.(6,﹣6)D.(3,3)或(6,﹣6)

二.填空题(每小题4分,共32分)

11、五边形的内角和是.

12、一个汽车牌在水中的倒影为,则该车牌照号码

是____________。

13.已知x+y=1,则=。

14、分解因式:2a2-4a=.

15、若等腰三角形腰上的高是腰长的一半,则这个等腰三角形的底角是。

16、微电子技术的不断进步,使半导体材料的精细加工尺寸大幅度缩小.某种电子元件的面积大约为0.0000007mm2,用科学记数法表示为mm2.

17、多项式加上一个单项式后,使它能成为一个整式的完全平方,那么加上的单项式可以是___________。(填上一个你认为正确的即可)

18.若点A(m,5)与点B(2,n)关于原点对称,则3m+2n的值为____.

三、简答题:(共8大题,共88分)

19、计算与化简求值(1、2小题各5分,3小题8分,共18分)

(1)(2)[(x+y)2-(x-y)2]÷(-2xy).

(3)先化简,再求值:(),其中x2﹣4=0.

20.分解因式(每题6分,共12分)

21、已知a,b,c三数的平均数是4,且a,b,c,d四个数的平均数是5,则d的值为()

24、(10分)甲,乙两人准备整理一批新到的试验器材,若甲单独整理需要40分钟完工,甲、乙共同整理20分钟,乙再需单独整理20分钟才能完工。

(1)乙单独整理这批试验器材需多少分钟完工?

(2)若乙因工作的需要,他整理的时间不超过30分钟,则甲至少整理多少分钟才能完工?

25、(12分)请仔细观察表中数据,并回答下列问题。

边数34567…n

从一个顶点出发的对角线的条数01234

上述对角线分成的三角形个数02345…

总的对角线条数025914…

(1)用含n的'式子分别表示从一个顶点出发的对角线的条数,上述对角线分成的三角形个数,总的对角线条数。答案直接写在表格中。

(2)若一个多边形的总对角线数为54条,求该多边形的边数和以及内角和度数

26、(12分)观察下列等式

12×231=132×2113×341=143×3123×352=253×32

34×473=374×4362×286=682×26......

以上每个等式中两边数字是分别对称的,且每个等式中组成的两位数与三位数的数字之间具有相同规律,我们称这类等式为“数字对称等式”。

(1)根据上述各式反映的规律填空,使式子成为“数字对称等式”

①52×=×25

②×396=693×

(2)设这类等式左边两位数的十位数字为a,个位数字为b,且2≤a+b≤9,写出表示“数字对称等式”一般规律的式子(含a、b),并证明。

篇2:初二数学下册期末测试题

初二数学下册期末测试题

解答题(本题共30分,第17题5分,第18~20题每小题6分,第21题7分)

17.解:.

,,.…………………………………………………………1分

.……………………………………………2分

方程有两个不相等的实数根…………………………3分

.

所以原方程的根为,.(各1分)………………5分

18.解:(1)∵一次函数的图象与y轴的交点为A,

∴点A的坐标为.…………………………………………………1分

∴.…………………………………………………………………2分

∵,

∴.…………………………………………………………………3分

∵一次函数的图象与x轴正半轴的交点为B,

八年级是一个至关重要的学年,大家一定认真复习,接下来看看为大家推荐的八年级下册数学期末试题(苏教版),会有很大的收获哦!

一、选择题(单项选择,每小题3分,共21分).

1.要使分式有意义,必须满足的条件是().

A.B.C.D.

2.下列代数式中,是分式的是()

A.B.C.D.

3.在平面直角坐标系中,点(2,-3)关于轴对称的点的坐标是().

A.(-2,-3)B.(2,-3)C.(-2,3)D.(2,3)

4.如果把分式中的、都扩大3倍,那么分式的值()

A.扩大3倍 B.不变 C.缩小3倍 D.缩小6倍

5.若点P()在第二象限,则的取值范围是()

A.<1B.<0c.>0D.>1

6.函数与(a≠0)在同一直角坐标系中的图象可能是()

7.如图,小亮在操场上玩,一段时间内沿M→A→B→M的路径匀速散步,能近似刻画小亮到出发点M的距离y与x之间关系的函数图象是()

二、填空题(每小题4分,共40分)

8.若分式方程有增根,则这个增根是

9.如图,反比例函数的图象经过点P,则=.

10.用科学记数法表示:0.000004= .

11.将直线向下平移4个单位得到直线,则直线的解析式为.

12.直线y=kx+b与直线y=-2x+1平行,且经过点(-2,3),则解析式为.

13.已知点Q(-8,6),它到x轴的距离是,它到y轴的距离是.

14、如图,在矩形ABCD中,AB=3,AD=4,P是AD上一动点,PF⊥BD于F,PE⊥AC于E,

则PE+PF的值为.

15、如图,在反比例函数的图象上,有点,,,,它们的横坐标依次为1,2,3,4,分别过这些点作轴与轴的垂线,图中所构成的阴影部分的面积从左到右依次为,,,则++=

16.14.如果菱形的两对角线分别为6和8,则它的面积是.

17.如图,矩形ABCD中,AB=1,AC=2,对角线AC、BD相交于点O,直线BD绕点O逆时针旋转(0°<<120°),交BC于点E,交AD于点F.

(1)OA= ;

(2)若四边形AECF恰好为菱形,则的值为 .

综合试卷5.30

班级姓名座号成绩

一、选择题

题目1234567

选项

二、填空题

8、9、10、11、12、

13、(1)(2)14、15、16、17、(1)(2)

三、解答题(共89分).

18.(10分)计算:(1).(2)

19、解方程(10分)(1) (2)

20.(7分)先化简,再求值:其中.

21、(9分)如图,已知反比例函数y=的图象与一次函数y=ax+b的`图象交于

M(2,m)和N(-1,-4)两点.

(1)求这两个函数的解析式;(2)求△MON的面积;

(3)请判断点P(4,1)是否在这个反比例函数的图象上,并说明理由.

22.(9分)如图,菱形的对角线、相交于点,,,请说明四边形是矩形.

23.(9分)如图,在四边形ABCD中,AB=CD,BF=DE,AE⊥BD,CF⊥BD,垂足分别为E,F.(1)求证:△ABE≌△CDF;

(2)若AC与BD交于点O,求证:AO=CO.

24.(9分)如图,在梯形ABCD中,AD∥BC,AB=CD,且AB

(1)直接填空:AB=;

(2)若直线AB以每秒0.5的速度向右平移,交AD于点P,交BC于点Q,则当直线AB移动的时间为多少秒时,四边形ABQP恰好为菱形?(精确到0.1秒)

25.(13分)如图11,矩形中,点在轴上,点在轴上,点的坐标是

(-12,16),矩形沿直线折叠,使得点落在对角线上的点处,折痕与、轴分别交于点、.

⑴直接写出线段的长;⑵求直线解析式;

⑶若点在直线上,在轴上是否存在点,使以、、、为顶点的四边形是平行四边形?若存在,请求出一个满足条件的点的坐标;若不存在,请说明理由.

26.(13分)是等边三角形,点是射线上的一个动点(点不与点重合),是以为边的等边三角形,过点作的平行线,分别交射线于点,连接.

(1)如图(a)所示,当点在线段上时,

①求证:;

②探究:四边形是怎样特殊的四边形?并说明理由;

(2)如图(b)所示,当点在的延长线上时,

①第(1)题中所求证和探究的两个结论是否仍然成立?(直接写出,不必说明理由)

②当点运动到什么位置时,四边形是菱形?并说明理由

为大家推荐的八年级下册数学期末试题(苏教版).还满意吗?相信大家都会仔细阅读,考出一个满意的成绩,加油哦!

∴点B的坐标为.…………………………………………………4分

(2)将的坐标代入,得.

解得.…………………………5分

∴一次函数的解析式为.

…………………………………6分

19.解:(1)按要求作图如图1所示,四边形和

四边形分别是所求作的四边形;…………………………………4分

(2)BD≥AC.……………………………………………………………6分

阅卷说明:第(1)问正确作出一个四边形得3分;第(2)问只填BD>AC或BD=AC只得1分.

20.(1)证明:如图2.

∵四边形ABCD是平行四边形,

∴AB∥CD,AB=CD.……………1分

∴∠1=∠2.………………………2分

在△ABE和△CDF中,

………………………3分

∴△ABE≌△CDF.(SAS)…………………………………………4分

∴AE=CF.……………………………………………………………5分

(2)当四边形AECF为矩形时,=2.………………………………6分

编辑老师在此也特别为朋友们编辑整理了宁城县初二数学下册期末测试题。

寒窗苦读,为的就是在考试中展现出自己最好的水平,大家更应该加把劲,努力学习,认真总结知识点,大量做题,从中找出自己的不足。详细内容请看下文苏州高新区初二数学下册期末测试题。

解答题(本题7分)

22.北京是水资源缺乏的城市,为落实水资源管理制度,促进市民节约水资源,北京市发

改委在对居民年用水量进行统计分析的基础上召开水价听证会后发布通知,从

年5月1日起北京市居民用水实行阶梯水价,将居民家庭全年用水量划分为三档,水

价分档递增,对于人口为5人(含)以下的家庭,水价标准如图1所示,图2是小明

家在未实行新水价方案时的一张水费单(注:水价由三部分组成).若执行新水价方

案后,一户3口之家应交水费为y(单位:元),年用水量为x(单位:),y与x

之间的函数图象如图3所示.

根据以上信息解答下列问题:

(1)由图2可知未调价时的水价为元/;

篇3:初二数学下册期末测试题

初二数学下册期末测试题

一、选择题

1.要了解全校学生 的课外作业负担情况,你认为以下抽样方法中比较合理的是( ) A.调查全体女生 B.调查全体男生

C.调查九年级全体学生 D.调查七年级,八年级,九年级各100名学生

2.为了了解某市八年级学生的肺活量,从中抽样调查了500名学生的肺活量,这项调查中的样本是( ).

A.某市八年级学生的肺活量 B.从中抽取的500名学 生的肺活量

C.从中抽取的500名学生 D.500

3. 袋子中装有4个黑球和2个白球,这些球的形状、大小、质地等完全相同,在看不到球的条件下,随机地从袋子中摸出三个球.下列事件是必然事件的是( )

A.摸出的三个球中至少有一个球是黑球.

B.摸出的三个球中至少有一个球是白球.

C.摸出的三个球中至少有两个球是黑球.

D.摸出的三个球中至少有两个球是白球.

4、下列约分,结果正确的是( )

A、B、C、D、

5、若 中的x和y都缩小一半,那么分式的值 ( )

A、缩小为原来的 B、不变 C、扩大到原来的2倍 D、扩大到原来的4倍

6、在平行四边形ABCD中,对角线AC,BD相交于O,若AC=10,BD=6,则AB的长的取值范围是( ).

A、2

7. 如图.在菱形ABCD中,对角线AC,BD交于点O,下列说法错误的是( )

A.AB∥DC B.AC=BD C.ACBD D.OA=OC

8. 如图,矩形ABCD的对角线AC、BD相交于点O,CE∥BD,DE∥AC,若AC=4,则四边形CODE的周长( )

A. 4 B. 6 C. 8 D. 10

9. 如图,ABCD是正方形,G是BC上(除端点外)的任意一点,DEAG于点E,BF∥DE,交AG于点F.下列结论不一定成立的是

A.△AED≌△BFA B.DE-BF=EF

C.AF-BF=EF D.DE-BG=FG

第7题图 第8题图 第9题图

10、如图,矩形ABCG(AB

A.0 B.1 C.2 D.3

二、填空题

11.将一批数据分成5组,列出分布表,其中第一组与第五组的频率之和是0.27,第二与第四组的频率之 和是0.54,那么第三组的频率是 _________ .

12.某中学为了了解本校2 000名学生所需运动服尺码,在全校范围内随机抽取100名学

生进行调查,这次抽样调查的样本容量是 _________ .

13、在分式 中,当 时,分式无意义;

14、分式 、、、中,最简分式的个数是_________个。

15.分式 的最简公分母是_____ ___ _.

16、菱形的.两条对角线分别为6cm和8cm,则菱形的面积为_____cm;边长是_____cm,菱形的高是_____cm

17、平行四边形的一个内角平分线将对边分成3和5两个部分,则该平行四边形的周长是____________.

18、如图,正方形ABCD中,E为BC延长 线上一点,且CE=AC,AE交DC于F, 则 AFC=_______.

19、设 , ,则 的值等于 .

20.如图,将n个边长都为1cm的正方形按如图所示摆放,点A1、A2、、An分别是正方形的中心,则n个这样的正方形重叠部分的面积和为____________ __(用n的代数式表示);

篇4:初二第一学期数学期末测试题

和y2(元)与参演男生人数x之间的函数关系式;

(2) 问:该学校购买哪家制衣公司的服装比较合算?请说明理由.

24.(12分)已知一次函数的图象a过点M(-1,-4.5),N(1,-1.5)

(1) 求此函数解析式,并画出图象(4分);

(2) 求出此函数图象与x轴、y轴的交点A、B的坐标(4分);

(3) 若直线a与b相交于点P(4,m),a、b与x轴围成的△PAC的面积为6,求出点C的坐标

(5分)。

25.( 12分)某商场筹集资金13.16万元,一次性购进空调、彩电共30台.根据市场需要,这些空调、彩电可以全部销售,全部销售后利润不少于1.56万元,其中空调、彩电的进价和售价见表格.

空调 彩电

进价(元/台) 5400 3500

售价(元/台) 6100 3900

设商场计划购进空调x台,空调和彩电全部销售后商场获得的利润为y元.

(1) 试写出y与x的函数关系式;

(2) 商场有哪几种进货方案可供选择?

(3) 选择哪种进货方案,商场获利最大?最大利润是多少元?

26.(12分)在一条笔直的公路上有A、B两地,甲骑自行车从A地到B地;乙骑自行车从B地到A地,到达A地后立即按原路返回,如图是甲、乙两人离B地的距离y(km)与行驶时间x(h)之间的函数图象,根据图象解答以下问题:

(1) 写出A、B两地的距离;

(2) 求出点M的坐标,并解释该点坐标所表示的实际意义;

(3) 若两人之间保持的距离不超过2km时,能够用无线对讲

机保持联系,请直接写出甲、乙两人能够用无线对讲机

保持联系时x的取值范围.

27.(12分)如图,直线l1 与x轴、y轴分别交于A、B两点,直线l2与直线l1关于x轴对称,已知直线l1的解析式为y=x+3,

(1) 求直线l2的解析式;

(2) 过A点在△ABC的外部作一条直线l3,过点B作BE⊥l3于E,过点C作CF⊥l3于F,请画出图形并求证:BE+CF=EF

(3) △ABC沿y轴向下平移,AB边交x轴于点P,过P点的直线与AC边的延长线相交于点Q,

与y轴相交与点M,且BP=CQ,在△ABC平移的过程中,①OM为定值;②MC为定值。

在这两个结论中,有且只有一个是正确的,请找出正确的结论,并求出其值。

答案

一、选择题

1―5 C B B B C 6―10 C C A A D

二、填空题

11. 3 12.

13. 5 14. x≥-2

15. 6 16. (-3,-5)

17. 48 18. 3

三、解答题

19.(1)4 (2)x=2或x=-4

20. 略

21. (1)△ACD是等边三角形 (5分) (2)∠BAE=120°(5分)

22. (1)略 (2)4 (3)(3,1)

23. (1)y1=0.7[120x+100(2x100)]+2200=224x4800;

y2=0.8[100(3x100)]=240x8000; (6分)

(2)由题意,得

当y1>y2时,即224x4800>240x8000,解得:x<200

当y1=y2时,即224x4800=240x8000,解得:x=200

当y1<240x8000,解得:x>200

即当参演男生少于200人时,购买B公司的服装比较合算;

当参演男生等于200人时,购买两家公司的服装总费用相同,任一家公司购买;

当参演男生多于200人时,购买A公司的服装比较合算. (4分)

24. (1)y=1.5x-3 图像略 (4分) (2)A(2,0) B(0,-3)(4分)

(3)P(4,3) C(-2,0)或(6,0) (5分)

25.(1)y=(61005400)x+(39003500)(30x)=300x+1;

(2)12≤x≤14 ;略

(3)空调14台,彩电16台;16200元

26.(1)20千米

(2)M的坐标为( ,40/3),表示 小时后两车相遇,此时距离B地40/3千米;

(3) 当 ≤x≤ 或 ≤x≤2时,甲、乙两人能够用无线对讲机保持联系.

27. (1) y=-x-3; (2)略 (3) ①对,OM=3

篇5:初二第一学期数学期末测试题

一、选择题 (每题3分,共30分)

1.如图,下列图案中是轴对称图形的是 ( )

A.(1)、(2) B.(1)、(3) C.(1)、(4) D.(2)、(3)

2.在3.14、、、、、0.020002这六个数中,无理数有 ( )

A.1个 B.2个 C.3个 D.4个

3.已知点P在第四象限,且到x轴的距离为3,到y轴的距离为2,则点P的坐标为( )

A.(-2,3) B.(2,-3) C.(3,-2) D.(-3,2)

4. 已知正比例函数y=kx (k≠0)的函数值y随x的增大而减小,则一次函数y=x+k的图象大致是下列选项中的 ( )

5.根据下列已知条件,能唯一画出△ABC的是( )

A.AB=5,BC=3,AC=8 B.AB=4,BC=3,∠A=30°

C.∠A=60°,∠B=45°,AB=4 D.∠C=90°,AB=6

6.已知等腰三角形的一个内角等于50,则该三角形的一个底角的余角是( )

A.25 B.40或30 C.25或40 D.50

7.若等腰三角形的周长是100cm,则能反映这个等腰三角形的腰长y(cm)与底边长x(cm)之间的函数关系式的图象是( )

A B C D

8.设0

A. B. C.k D.

9.下列命题①如果a、b、c为一组勾股数,那么3a、4b、5c仍是勾股数;②含有30°角的直角三角形的三边长之比是3∶4∶5;③如果一个三角形的三边是 , , ,那么此三角形

必是直角三角形;④一个等腰直角三角形的三边是a、b、c,(c >a = b),那么a2∶b2∶c2=1∶1∶2;⑤无限小数是无理数。其中正确的个数是 ( )

A.1个 B.2个 C.3个 D.4个

10.如图所示,函数y1=|x|和y2= x+ 的图象相交于(-1,1),(2,2)

两点,当y1>y2时,x的取值范围是( )

A.x<-1 B.-1

C.x>2 D.x<-1或x>2

二、填空题 (每空3分,共24分)

11. =_________ 。

12. =_________ 。

13.若△ABC≌△DEF,且△ABC的周长为12,若AB=3,EF=4,则AC= 。

14.函数 中自变量x的取值范围是_____ 。

15.如图所示,在△ABC中,AB=AC=8cm,过腰AB的中点D作AB的垂线,

交另一腰AC于E,连接BE,若△BCE的周长是14cm,则BC= 。

第15题 第17题 第18题

16.点p(3,-5)关于 轴对称的点的坐标为 .

17.如图已知△ABC中,AB=17,AC=10,BC边上的高AD=8.则△ABC的周长为__________。

18.如图,A(0,2),M(3,2),N(4,4).动点P从点A出发,沿y轴以每秒1个单位长的速度向上移动,且过点P的直线l:y=-x+b也随之移动,设移动时间为t秒. 若点M,N位于直线l的异侧,则t的取值范围是 。

三、解答题(本大题共9题,共96分)

19.计算(每题5分,共10分)

(1) (2)

20.(8分)如图,在ΔABC与ΔDEF中,如果AB=DE,

BE=CF,只要加上 条件(写一

个就可以),就可证明ΔABC≌ΔDEF;并用你所选

择的条件加以证明。

21.(10分)如图,已知△ABE,AB、AE边上的垂直平分线

m1、m2交BE分别于点C、D,且BC=CD=DE

(1) 判断△ACD的形状,并说理;

(2) 求∠∠BAE的度数.

22.(10分)如图,在平面直角坐标系中, 、均在边长为1的正方形网格格点上.

(1) 在网格的格点中,找一点C,使△ABC是直角三角形,且三边长均为无理数

(只画出一个,并涂上阴影);

(2) 若点P在图中所给网格中的格点上,△APB是等腰三角形,

满足条件的点P共有 个;

(3) 若将线段AB绕点A顺时针旋转90°,写出旋转后点B的坐标

23.(10分) 我市运动会要隆重开幕,根据大会组委会安排,某校接受了开幕式大型团体操表演任务.为此,学校需要采购一批演出服装,A、B两家制衣公司都愿成为这批服装的供应商.经了解:两家公司生产的这款演出服装的质量和单价都相同,即男装每套120元,女装每套100元.经洽谈协商:A公司给出的优惠条件是,全部服装按单价打七折,但校方需承担2200元的运费;B公司的优惠条件是男女装均按每套100元打八折,公司承担运费.另外根据大会组委会要求,参加演出的女生人数应是男生人数的2倍少100人,如果设参加演出的男生有x人.

(1) 分别写出学校购买A、B两公司服装所付的总费用y1(元)

篇6:初二数学下册期末复习测试题

初二数学下册期末复习测试题

一.选择题(共10小题,满分20分,每小题2分)

1.若式子在实数范围内有意义,则x的取值范围是( )

A.x=1B.x≥1C.x>1D.x<1

2.下列计算正确的是( )

3.下列各式计算正确的是( )

4.已知:如图在△ABC,△ADE中,∠BAC=∠DAE=90°,AB=AC,AD=AE,点C,D,E三点在同一条直线上,连接BD,BE.以下四个结论:

①BD=CE;

②BD⊥CE;

③∠ACE+∠DBC=45°;

④BE2=2(AD2+AB2),

其中结论正确的个数是( )

A.1B.2C.3D.4

5.一直角三角形的两边长分别为3和4.则第三边的长为( )

6.如图,菱形纸片ABCD中,∠A=60°,折叠菱形纸片ABCD,使点C落在DP(P为AB中点)所在的直线上,得到经过点D的折痕DE.则∠DEC的大小为( )

A.78°B.75°C.60°D.45°

(第六题)(第七题)

7.如图,在边长为2的正方形ABCD中,M为边AD的中点,延长MD至

点E,使ME=MC,以DE为边作正方形DEFG,点G在边CD上,则DG

的长为( )

8火车匀速通过隧道时,火车在隧道内的长度y(米)与火车行驶时间x(秒)之间的关系用图象描述如图所示,其中四边形OABC是等腰梯形,则下列结论中正确的是( )

A.火车整体都在隧道内的时间为30秒

B.火车的长度为120米

C.火车的'速度为30米/秒

D.隧道长度为750米

9.如图,正方形ABCD的边长为4,P为正方形边上一动点,沿A→D→C→B→A的路径匀速移动,设P点经过的路径长为x,△APD的面积是y,则下列图象能大致反映y与x的函数关系的是( )

A.B.

C.D.

10.张师傅驾车从甲地到乙地,两地相距500千米,汽车出发前油箱有油25升,途中加油若干升,加油前、后汽车都以100千米/小时的速度匀速行驶,已知油箱中剩余油量y(升)与行驶时间t(小时)之间的关系如图所示.以下说法错误的是( )

A.加油前油箱中剩余油量y(升)与行驶时间t(小时)的函数关系是y=-8t+25

B.途中加油21升

C.汽车加油后还可行驶4小时

D.汽车到达乙地时油箱中还余油6升

二.填空题(共10小题,满分30分,每小题3分)

11.若代数式有意义,则x的取值范围是.

12.若,则m5-2m4-m3的值是.

13.如图,OP=1,过P作PP1⊥OP,得OP1=;再过P1作P1P2⊥OP1且P1P2=1,得OP2=;又过P2作P2P3⊥OP2且P2P3=1,得OP3=2;…依此法继续作下去,得OP=。

14.已知一次函数y=kx+b(k、b为常数且k≠0)的图象经过点A(0,-2)和点B(1,0),则k=,b=.

15.如图所示,在△ABC中,∠C=2∠B,点D是BC上一点,AD=5,且AD⊥AB,点E是BD的中点,AC=6.5,则AB的长度为.

16.如图,ABCD的周长为36,对角线AC,BD相交于点O.点E是CD的中点,BD=12,则△DOE的周长为.

17.按如图方式作正方形和等腰直角三角形.若第一个正方形的边长AB=1,第一个正方形与第一个等腰直角三角形的面积和为S1,第二个正方形与第二个等腰直角三角形的面积和为S2,…,则第n个正方形与第n个等腰直角三角形的面积和Sn=.

18.函数中,自变量x的取值范围是

19.平面直角坐标系中,已知直线y=x上一点P(1,1),C为y轴上一点,连接PC,线段PC绕点P顺时针旋转90°至线段PD,过点D作直线AB⊥x轴,垂足为B,直线AB与直线y=x交于点A,且BD=2AD,连接CD,直线CD与直线y=x交于点Q,则点Q的坐标为.

20.市运会举行射击比赛,校射击队从甲、乙、丙、丁四人中选拔一人参赛.在选拔赛中,每人射击10次,计算他们10发成绩的平均数(环)及方差如下表.请你根据表中数据选一人参加比赛,最合适的人选是

甲乙丙丁

平均数8.28.08.08.2

方差2.11.81.61.4

三.解答题(共10小题,满分60分)

21.先化简,再求值:,

22.先化简,再计算:

23.联想三角形外心的概念,我们可引入如下概念.

定义:到三角形的两个顶点距离相等的点,叫做此三角形的准外心.

举例:如图1,若PA=PB,则点P为△ABC的准外心.

应用:如图2,CD为等边三角形ABC的高,准外心P在高CD上,且PD=AB,求∠APB的度数.

探究:已知△ABC为直角三角形,斜边BC=5,AB=3,准外心P在AC边上,试探究PA的长.

24.如图,已知点D为等腰直角△ABC内一点,∠CAD=∠CBD=15°,E为AD延长线上的一点,且CE=CA.

(1)求证:DE平分∠BDC;

(2)若点M在DE上,且DC=DM,求证:ME=BD.

25.如图,M是△ABC的边BC的中点,AN平分∠BAC,BN⊥AN于点N,延长BN交AC于点D,已知AB=10,BC=15,MN=3

(1)求证:BN=DN;

(2)求△ABC的周长.

26.如图,ABCD中,点O是AC与BD的交点,过点O的直线与BA、DC的延长线分别交于点E、F.

(1)求证:△AOE≌△COF;

(2)请连接EC、AF,则EF与AC满足什么条件时,四边形AECF是矩形,并说明理由.

27.如图.在△ABC中,∠ACB=90°,CD⊥AB于D,AE平分∠BAC,分别于BC、CD交于E、F,EH⊥AB于H.连接FH,求证:四边形CFHE是菱形.

28.在△ABC中,AB=AC=5cm,D、E分别是AB,AC的中点,将△EBC沿BC折叠得到△FBC,连接C、D.

(1)求证:四边形DBFC是平行四边形;

(2)若BC=5cm,求D、F两点之间的距离.

29.如图(1)所示,已知AD是△ABC的中线,∠ADC=45°,把△ABC沿AD对折,点C落到点E的位置,连接BE,如图(2)

(1)若线段BC=12cm,求线段BE的长度.

(2)在(1)的条件下,若线段AD=8cm,求四边形AEBD的面积.

(3)若折叠后得到的四边形AEBD的是平行四边形,试判断△ADC的形状,并说明理由.

30.已知正方形ABCD的边长是2,E是CD的中点,动点P从点A出发,沿A→B→C→E运动,到达E点即停止运动,若点P经过的路程为x,△APE的面积记为y,试求出y与x之间的函数解析式,并求出当y=时,x的值.

篇7:初二数学测试题

初二数学测试题

一、基础测试

1.算术平方根:如果一个正数x 等于a,即x2=a,那么这个x正数就叫做a的算术平方根,记作 ,0的算术平方根是 。

2.平方根:如果一个数x的 等于a,即x2=a那么这个数a就叫做x的平方根(也叫做二次方根式),正数a的平方根记作 .一个正数有平方根,它们 ;0的平方根是 ;负数平方根.

特别提醒:负数没有平方根和算术平方根.

3.立方根:如果一个数x的 等于a,即x3= a,那么这个数x就叫做a的立方根,记作 .正数的立方根是 ,0的立方根是 ,负数的立方根是 。

4、实数的分类

5.实数与数轴:实数与数轴上的`点______________对应.

6.实数的相反数、倒数、绝对值:实数a的相反数为______;若a,b互为相反数,则a+b=______;非零实数a的倒数为_____(a≠0);若a,b互为倒数,则ab=________。

7.

8. 数轴上两个点表示的数,______边的总比___边的大;正数_____0,负数_____0,正数___负数;两个负数比较大小,绝对值大的反而____。

9.实数和有理数一样,可以进行加、减、乘、除、乘方运算,而且有理数的运算法则与运算律对实数仍然适用.

二、专题讲解:

专题1平方根、算术平方根、立方根的概念

若a≥0,则a的平方根是 ,a的算术平方根 ;若a<0,则a没有平方根和算术平方根;若a为任意实数,则a的立方根是 。

【例1】 的平方根是______

【例2】327 的平方根是_________

【例3】下列各式属于最简二次根式的是( )

A.

【例4】(山东德州)下列计算正确的是

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

【例5】(四川省眉山市)计算 的结果是

A.3 B. C. D. 9

专题2 实数的有关概念

无理数即无限不循环小数,初中主要学习了四类:含 的数,如: 等,开方开不尽的数,如 等;特定结构的数,例0.010 010 001…等;某些三角函数,如sin60,cos45 等。判断一个数是否是无理数,不能只看形式,要看运算结果,如 是有理数,而不是无理数。

【例1】在实数中-23 ,0, ,-3.14, 中无理数有( )

A.1个 B.2个 C.3个 D.4个

【例2】(20浙江省东阳县) 是

A.无理数 B.有理数 C.整数 D.负数

专题3 非负数性质的应用

若a为实数,则 均为非负数。

非负数的性质:几个非负数的和等于0,则每个非负数都等于0。

【例1】已知(x-2)2+|y-4|+ =0,求xyz的值.

【例2】(2010年安徽省B卷)2.已知 ,且 ,以a、b、c为边组成的三角形面积等于( ).

A.6 B.7 C.8 D.9

专题4 实数的比较大小(估算)

正数大于0,负数小于0,正数大于一切负数,两个负数绝对值大的反而小,常用有理数来估计无理数的大致范围,要想正确估算需记熟0~20之间整数的平方和0~10之间整数的立方.

【例1】(2010年浙江省金华)在 -3,- , -1, 0 这四个实数中,最大的是( )

A. -3 B.- C. -1 D. 0

【例2】二次根式 中,字母a的取值范围是( )

A. B.a≤1 C.a≥1 D.

专题5 二次根式的运算

二次根式的加、减、乘、除运算方法类似于整式的运算,如:二次根式加、减是指将各根式化成最简二次根式后,再利用乘法的分配律合并被开方数相同的二次根式;整式的运算性质在这里同样适用,如:单项式乘以多项式、多项式乘以多项式、乘法公式等.

【例1】计算 所得结果是______.

【例2】阅读下面的文字后,回答问题:小明和小芳解答题目:“先化简下式,再求值:a+ 其中a=9时”,得出了不同的答案 ,小明的解答:原式= a+ = a+(1-a)=1,小芳的解答:原式= a+(a-1)=2a-1=2×9-1=17

⑴___________是错误的;

⑵错误的解答错在未能正确运用二次根式的性质: ________

专题6 实数的混合运算

实数的混合运算经常把零指数、负整数指数、绝对值、根式、三角函数等知识结合起来.解决这类问题应明确各种运算的含义( ,运算时注意各项的符号,灵活运用运算法则,细心计算。

【例1】计算:(1)(3 (2)

【例2】(2010年福建省晋江市)计算:

三、针对性训练:

(一)选择题

1. (2010年浙江省金华)据报道,5月28日参观2010上海世博会的人数达35.6万﹒用科学记数法表示数35.6万是( )

A.3.56×101 B.3.56×104 C.3.56×105 D.35.6×104

2.(2010重庆市) 3的倒数是

A.13 B.— 13 C.3 D.—3

3.(2010江苏泰州,3,3分)据新华社2010年2月9日报道:受特大干旱天气影响,我国西南地区林地受灾面积达到43050000亩.用科学计数法可表示为( )

A. 亩 B. 亩 C. 亩 D. 亩

4.(2010年安徽省B卷)1.下列各式中,运算正确的是( )

A. B. C. D.

5.(2010年北京崇文区) 的倒数是( )

A. B. C. D. 3

6. (2010年山东聊城)无理数-3的相反数是()

A.-3 B.3 C.13 D.-13

7.(2010年台湾省)图(五)数在线的A、B、C三点所表示的数分别为a、b、c。根据图中各点位置,判断下列各式何者正确?

(A) (a1)(b1)>0 (B) (b1)(c1)>0 (C) (a1)(b1)<0 (D) (b1)(c1)<0

(二)填空题

8.(2010江西)按照下图所示的操作步骤,若输入x的值为-2,则给出的值为 .

9. (2010年浙江省东阳县)如图,在数轴上点A和点B之间的整数是 .

10. (2010年安徽中考)计算: _______________.

11、(2010年宁波市)实数4的算术平方根是_________。

12.(2010福建泉州市惠安县)计算:20100=____________.

13、(2010年宁波)实数4的算术平方根是_________。

14、(2010盐城)4的算术平方根是

(三)解答题

15.(2010年重庆)计算: .

16.(2010年四川省眉山)计算:

17.(2010浙江省喜嘉兴市)计算:|-2|+( )0;

18.(2010年浙江台州市)(1)计算: ;

19(2010年浙江省东阳县)计算:

20.(2010江苏泰州,19⑴,8分)计算:(1) ;

21.(2010年浙江省绍兴市)(1)计算: | | ;

22.(2010年四川省眉山市)计算:

23.(2010年浙江省东阳市)(6分)计算:

24. (2010年兰州市)(1)(本小题满分4分) — +

25.(2010福建泉州市惠安县)计算:

26.(2010年安徽省B卷)17.(第1小题6分)(1)计算: .

27.(2010年门头沟区)计算: .

28.(2010年山东省济南市)计算: -4cos30°-3+( )0

篇8:初二英语期末测试题参考

初二英语期末测试题参考

选择填空(本题共20小题,每小题1分,满分20分)

从A,B,C,D四个选项中,选出可以填入空白处的最佳选项。

( )1.__________ it was rainy , they went to the cinema to see a film .

A Before B Because C Though D After

( )2.I think Edison was a(n) _____ person , he invented so many things in his life .

A creative B honestC energetic D funny

( )3.----Where should I ____ the flight , sir ?

-----Let me look , Oh , at the gate of 12 over there .

A realise B refuse C board D .rewrite

( )4.I feel ____ when I am at home by myself .I want my parents to be with me .

A worried B pleasedC lonely D untidy

( )5. ----Yesterday my hand hurt and I went to the hospital .

----- Really ? _________________.

A What a shame B It’s nice of you

C Rather you than me D I am sorry to hear that

( )6.The room has a great ______ of the mountains , I often sit inside and look out of the windows.

A name B time C place D view

( )7.The teacher call all the students to be _____ in the class .

A quiet B clear C awakeD alone

( )8.The man looks after the baby very well , _____ he is her real father .

A as if B even ifC such asD as a result

( )9.Look , Sally is sitting __________ her friends .

A between B among C beside D front

( )10.New year is a ______ holiday , all the people in the world celebrate it .

A new B old C national D public

( )11.Mozart could play the violin on _____ own at the age of 5.

A his B him C himself D he

( )12.After the accident , We have to send the _______ people to the hospital quickly .

A happy B injured C local D lonely

( )13.In modern society , computers are very important _____ for us .They are very useful

A ideas B tools C worksD problems

( )14.-------- -_________?

---------- There was something wrong with my leg .

A what did you do ?B Why did you bet ?

C. What happened to you ? D Why did you do that ?

( )15.My grandparents love me very much , they want to do _____ for me .

A nothing B everything C nothing D anything

16.I will go to England for a trip next week !___________.

A Good idea B Don’t be silly

C So would I D Have a safe trip

( )17. I think you can do it better ____ you do it more carefully .

A unless B if C before D though

( )18.He has worked for 19 hours , he needs to stop __________.

A working B to work C rest D to rest

( )19. Could you tell me _____________? Yes,go straight , turn right , you will find it .,

A where was the hotel ?B What’s wrong with you ?

C. how I can go to the hotel ?D Where is the hotel ?

( )20.Don’t ______ your son , he will be better soon .

A worry about B stay cool C laugh at D feel like

II.完型填空(一) (本题共10小题,每小题1分,满分10分)

阅读下面短文,从各题所给的四个选项中,选出最佳选项。

Coffee has been a part of People’s lives for _1___ years ,and it is still a favourite drink in the world. Here is a story of coffee and __2_ it was discovered ,

The story _3_ us coffee was discovered in Africa long __4_. One day a farmer __5_ his goats , and he saw them __6 berries (种子) from a plant . The goats became ____7_ after they ate the berries . The man often felt tired ,__8__ he decided to try the berries , too . _____9____, he didn’t feel tired any more . Coffee plants were thus discovered . The coffee wa taken from Africa to _____countries in Europe and America .After that the farmers started to grow the plants there , especially in South America .

( )1.A thousand ofB thousand C thousands of D a thousand of

( )2.A how B whyC what D who

( )3.A saysB speaks Ctalks Dtells

( )4.A time ago B times ago C time before D time later

( )5.A watch B watchesC was watchingD is watching

( )6.A eat B eats C ateDhas eaten

( )7.A very tired Bvery active C badly ill Dfast asleep

( )8.A but B orC because D so

( )9.A for his great surprise B With great surprise

C to his great surprise D on his great surprise

( )10.A another B otherC othersD the other

III.阅读理解(一) (本题共15小题,每小题2分,满分30分)

阅读下列短文,从各题所给的四个选项中,选出最佳选项。

A

Thirty years ago. Lake Ponkapog was full of life. Many birds and animals lived beside the water, which was full of fish. Now there are few birds, animals and fish. The lake water is polluted. It is filled with strange plants.

How did this happen? First, we must think about how water gets into Ponkapog. When it rains,water comes into the lake from all around. In the past, there were forests all around Lake Ponkapog, so the rainwater was clean.

Now there are many homes around the lake. People often use chemicals in their gardens. They use other chemicals inside their houses for cleaning of killing insects(昆虫).

There are also many businesses.Businesses use chemicals in their-machines or shops. When it rains, the rainwater picks up all the chemicals from homes and businesses and then carries them into the lake. So more bad chemicals go into the water this way.

People around the lake love their lake and want to save it. Will it be possible? A clean lake must have clean rainwater going into it. Clean rainwater is possible only if people are careful about chemicals at home and at work. They must also be more careful about gas and oil and other chemicals on the ground, and they mustn't use motorboats any more on the lake. All these may change people's lives. Only then can Lake Ponkapog be a beautiful clean lake again.

1 .In the past the water in Lake Ponkapog was made clean by ______.

A. fish B. rain C. birds D. forests

2. From the fourth paragraph we know that _______.

A. people like to go boating on the lake

B. some bad chemicals are important to the lake

C. chemicals-from motorboats also make the lake water dirty

D. how oil gets into the lake water

3. To save the lake, people need to __________.

A. use less water

B. changed their daily lives

C. grow fewer plants in the gardens

D. be less careful about chemicals

4. “Chemicals” in the story means ___________.

A. 污染品 B. 化学家 C.药品 D.化学制品

5. What makes the lake water dirty?

A. Chemicals B. Strange plantsC. RainwaterD. Both A and B

B

You may hear about earthquakes , but do you know what to do before ,during and after an earthquake,? Here is some adivice for you .

Before an earthquake : It is necessary to prepare yourself and your family . All family members should know how to turn off gas (煤气),water and electrity and know useful telephone numbers (doctor, hospital , police , 119 , etc.) Never put heavy things over beds .

During an earthquakeIt is important for each of you to stay cool .If you are indoors , quickly move to a safe place in the room such as under a strong desk or strong table. The purpose is to protect yourself from falling objects. Stay away from windows, large mirrors , heavy furniture(家具) and so on . If you are cooking , turn off the gas .

If you are outdoors , move to an open area like a playground. Mobe away from buildings , bridges and trees . If you are driving ,stop the car as soon as possible , staying away from bridges and tall buildings . Stay in your car .

After an earthquake Once the shaking has stopped . Don’t run out of the building at once . It’s better to wait and leave when it is safe .

Check around you and help people who are in trouble . If your building is badly broken you should leave it .If you smell or hear a gas , get everyone outside and open windows and doors . If you can do it safely , turn off the gas.Report it to the gas company .

( )6 Which of the following is mentioned in the second paragraph ?

A People should know how to turn on gas

B.People should know how to save water .

C.Poele shouldn’t put heavy boxes over beds .

D.People shouldn’t forget the phone number ofothers .

( )7.When an earthquakehappens , _____ can help you deal with it.

A standing still B staying coolC looking outside D moving indoors

( )8.During an earthquake , if you are driving in an open area , you should _____.

A speed up your car B stop your car and stay in C slow down you car D stop your car and run out

( )9.When the earth stops shaking , you should ___

A check around you firstB run out of the building at onceC vreak windows and doors D write a report to your company

()10. You can learn _____ after reading the passage .

A whant an earthquake is like

B what to do to avoid an earthquake

C. How an earthquake happens

D how to protect yourself in an earthquake

C

Scientists have dicovered the world’s funniest joke ! Dr Wiseman , from Oxford University in Britain , . created a website with jokes on it . He then asked people to rate (定级) the jokes from 1( not very funny ) yo 5 ( very funny ). People could also tell their onw jokes . At the end of one year , Wiseman has two million ratings and 40,000 jokes from around the world .

Why study jokes ? Dr Wiseman thinks humor can tell us a lot about people. In Wiseman ‘s experiment (实验), people from different countries did think different hokes were funny . for example, Europeans rated jokes about serious topics like death “Very funny “. North Americans laughed most at jokes that made fun of people . So , wtaht was the world’s funniest joke ?

Two men were hunting , sundernly, one man falls down and isn’t moving The other man calls for help on his mobile phone .”Help !” The man says “ I think my friend is dead !”” I can help you “says the woman on the phone ,”first , are you sure your friedn is dead ?”It’s quiet for a minute . Then the woman hears a gunshot (枪声). The man returns to the phone “Yes, he is dead . Now what ?”

In Dr Wiseman’s experiment , people from a number of countries , old and young , men and women , all thought this jike was very funny . What about you ?

( ) 11.How did Dr Wiseman find the funniest joke in the world ?

A He asked different scientists for their ideas .

B He asked people to rate jokes on the website.

C.He asked his students about their favourite jokes .,

D.He seachered the Internet and chose it by himself .

( )12. What kind of jokes mad Europeans laugh most ?

A jokes about hunting B jokes about people

C jokes about telephoning D jokes about death

( )13.Which of the following can best desribe the mand calling for help in the joke ?

A He is foolish B he id confident C he is clever D He is dishonest

( )14.What can we learn from the passage ?

A The womdn told the man to kill his friend

B Dr Wiseman wasn’t interested in Asia jokes

C All the people in the world liked jokes about death

D. Dr Wiseman studied jokes to know about people

( )15.How many ratings did the Dr Wiseman get ?

A 40,000 B 200,000C 2, 000,000 D 4000

IV. 情景交际(本题共5小题,每小题2分,满分10分)

根据对话内容选出可以填入空白处的最佳选项,有两项为多余选项

Jim : Who is the richest man in the world , do you know ?

Tony : No, I don’t . ____1_____

Jim : It’s an American called Bill Gates .

Tony : I don’t know anything about him .

Jim : You don’t know anything about him ? Well , you shouldn’t . ___2_____.

Tony: Microsoft ? What’s that ?

Jim : You don’t know about Microsoft? It’s the biggest , most important computer company in the world . Bill Gates is rich because people all over the world use Microsoft products in their compuers .

Tony : Oh yes . I know Microsoft.______3_________?

Jim:Because he is a very special man . He is very rich , but he’s also very kind. He wants to give most his money away so that he can help other people .

Tony : Does he ? That’s very good of him . _______4_______

Jim : Yes , they do . But Bill and his wife Melinda think it’s important to help people . You know , their money has helped more than 670,000 people all over the world .

Tony :_________

Jim : It’s true . They have given away more money than anyone else in the world .

Tony :Well , they are wonderful people . When can I meet them ?

A. But why are you telling me about Bill Gates ?

B. He is the head of tf Microsoft .

C Why does he send away his money ?

D Most rich people want to keep their money !

E who is it ?

F Do they like money ?

G No , I don’t believe that !

V. 完型填空(二)(本题共13小题,每小题1分,满分13分)

A.阅读下面短文,根据文意,将方框内所给的词填入相应的空白处,使短文意思完整。(每个词只用一次)

everywhere, another, visit, , Food, history, make, experience, people

In the past , people used to travel to foreign countries because they thought they would be different in many ways – the buildings , the_1____, the national dressed and so on . At present , however , one large city is similar to _2____. They all have their Hilton or Sheraton Hotels everywhere . They all have their McDonald’s , their KFCs and their Pizza hunts . Office buidings look the same___3___, and most city centers full of office buidings , And of course , people are driving the same brands(品牌) of Japanese or European cars .

Then what is the foreign travel for ? What do tourists hope to ______4_____in a foreign country that they can’t experience at home ? The answer could be that people are very interested in the past. It is a nation’s _____5_____and culture that are the main attractions . Most people travel oversea to find out what foreign countries history and cultures used to be like , not what they are like today .Tourists try to learn the history and culture of foreign countries by visiting different kinds of museums.

Every counrty also has its own beautiful places for tourists to ____6_____. Their own special scenery(风景) would certainly attract tourists from other countries.

Finally , there is perhaps a country ‘s attraction:It’s people . A country is not just its old buildings , its works of art or beautiful places , it’s also the ______7_____who lve in it. This is why a country such as Thailand attracts millions of people . The tourists come mainly because of the friendness of the people there .It is why the Pacific islands are also so popular. The friendly , smiling people __8____visitors feel welcome .

B.阅读下面短文,在短文的空格内填入适当的`词,使其内容通顺。(每个空填一词)

On a cold winter afternoon , I was walking home from a surpermarket. I was feeling a little tired ,as I was carrying my shopping bags. They were so heavy _____I decided to stop to have a rest in the park . I walked towards the gate of the park . I noticed a man walking out of the restaurant in front of me .He was holdinga paper bag . He walked to a nearby dustbin (垃圾箱) and started looking through it .

I suddenly felt sad . I knew the man would take all that he could get , so I went up to him and__________ him some fruit . The man , with wrinkles (皱纹) on his face , looked up in surprise and took what I gave him.

A big______ appeared on his face and I felt very happy . Then he said “Wow ! First someone gave me this sandwich, then this drink , and now some delicious fruit . This is my daughter’s lucky day . Thank you, boy .” Then he went________ , singing a song .’

Just then , I understood what the saying “Giving is getting” really meant. Everyone in the world needs help , everyone can offer help and everyone will be helped by showing kindness. Giving sometimes doesn’t cost ______ , but it means a lot to the people who you help .

The man’s happiness at that moment comes into my mind every time I have the chance to help others .

阅读理解(二)(本题共6小题,每小题2分,满分12分)

阅读下列短文,完成下列问题。

Do you have a mobile phone ? Do you send text meaasges to your friends and family ?

Text messaging or “texting “(短信), is becoming very popular . But, scientists have discovered that texting can give us problems with our hands . Be careful ! Too much texting can cause swelling (肿胀) in our thumbs (拇指). Our thumbs were not made for pushing small buttons , over and over. Scientists call this problem RSI(重复性紧张劳损).We spoke to a doctor called harriet Wilson , who treats many sick people with RSI .(6) She says that we need to see how much time we are spending in typing text messages.If we are spending more that 10-15 minutes at once , we could have peoblems in the future .

(7)As mobile phones develop , they are getting small with buttons closer together . Texting with a smaller phone ,. Is it worse than using a larger phone with bigger buttons . Using a computer keyboard and playing video games can cause the same problem . So more and more people could find themselves with RSI. Among them , most are university students and teenagers , as they do not know the risks of spending so much time using computers , video games and mobile phones . If we don’t do something about this , too many young people could grow up in terrible pain .

According to the passage , what is becoming popular now ?

_________________________________________________?

Does the word “Once “ mean “one time” in the second passage ?

__________________________.

What kind of people are easier to have the problem of RSI ?

______________________________?

What can also cause RSI except texting ?

_____________________________.

翻译成汉语

5.____________________________________________________.

6.___________________________________________________.

写(满分25分)

A. 句子翻译。根据下面各题所给汉语意思用英语完成句子。(共5小题,每题2分,满分10分)

1. 我真的很期盼着去北京看长城。

I am really ________________________ the Great Wall in Beijing .

2.他太小了以至于不能自己穿衣服。

He is _________ young ______ he can’t dress himself .

3.地理老师说地球围绕着太阳转。

Geopraphy teacher said that _____________________________.

4.尽管天冷 ,他们还是出去散步了。

_______________ the cold weather , they went outo to have a walk .

5.什么使你对音乐那么感兴趣?

______________________________________________?

B.书面表达(满分15分)

假设今年暑假有一些英国中学生要来你校参观访问,你准备参与接待工作。为了提前做好各项准备,学校要求参与接待的学生用英语拟订一个接待计划。请根据以下的方面来拟订你的计划。内容包括:

你要做的事情(多练习英语;了解英国学生的兴趣,爱好;做了解大连的历史,文化和名胜)。

你准备为来宾准备的1—2项活动。

注意:

1。60词左右

2.不能透露个人的任何信息。

Some UK high school students will come to our cshool during the summer holidays . To help them ,I_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

期末英语测试题答题纸

26中林秀晶 -------.06

单项填空(本题共20小题,每小题1分,满分20分)

1.______2._____ 3.______ 4.______5.______ 6.______ 7.______ 8.______ 9.______10._____11.____12._____13.______14._____15._____16.______17._____18._____19.______20.______

完形填空(一) (本题共10小题,每小题1分,满分10分)

1.______2._____ 3.______ 4.______5.______ 6.______ 7.______ 8.______ 9.______10._______

III阅读理解(一) (本题共15小题,每小题2分,满分30分)

1.______2._____ 3.______ 4.______5.______ 6.______ 7.______ 8.______ 9.______10._______11.____12._____13.______14._____15._____

IV. 情景交际(本题共5小题,每小题2分,满分10分)

1. ___________2. __________3. ____________4. ___________5. ______________

V. 完形填空(二)(本题共13小题,每小题1分,满分13分)

A.1._________ 2._________3.________ 4.________ 5.___________ 6.__________ 7._________8._____9.________10___11_________12________13_________-

VI.阅读理解(二)(本题共6小题,每小题2分,满分12分)

1.__________________________________________________-

2.________________ _________________________________-

3. __________________________________________________

4. ___________________________________________________--

5.______________________________________________________

6. _____________________________________________________________-

7.______________________________________________________________

VII. 写(满分25分)

A. 句子翻译。(16分)

1.__________________________________________

2.___________________________________________

3.___________________________________________

4.___________________________________________

5.___________________________________________

6.__________________________________________________________________

B ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

期末英语测试题答案

单项填空(本题共20小题,每小题1分,满分20分)

1-5 CACCD 6-10 DAABD11-15 ABBCB16-20DBDCA

II. 完形填空(一) (本题共10小题,每小题1分,满分10分)

1-5 CADAC6-10 ABDCB

III. 阅读理解(一) (本题共15小题,每小题2分,满分30分)

1-5 D C B A D 6-10 CBBAD11-15 BDADC

IV. 情景交际(本题共5小题,每小题2分,满分10分)

1-5 E B A D G

V. 完形填空(二)(本题共13小题,每小题1分,满分13分)

Afood, another, everywhere, experience, history, visit, people, make

B.,that ,gave, smile away, much

VI.阅读理解(二)(本题共6小题,每小题2分,满分12分)

Texting

Yes , it does .

Unviersity students and teenagers .

Using a computer keyboard and playing video games .

5.她说我们需要了解我们花在发短信上有多少时间

6.随着手机的发展,他们的按纽紧靠在一起并且越来越小。

VII写(满分25分)

句子翻译(10)

1. looking forward to seeing 2. so that

3. the earth travels around the sun4. in spite of

5.What made you so interested in music ?

篇9:五年级数学期末测试题

五年级数学期末测试题

一、填空题:(每题2分计24分)

1、10.6÷0.75商是,余数是()。

2、在○里填上“>、<或=”。

4.25×0.95○4.256.85÷1.5○6.85

5.87÷0.1○5.87×0.14.8×100○48÷0.01

3、5400克﹦()千克1.06升﹦()毫升

0.85公顷﹦()平方米850平方分米﹦()平方米

4、4.6里有()个十分之一,再加()个十分之一就是5。

5、把5.9689保留整数是(),保留一位小数是()。

6、一个三位小数精确到百分位是3。76,这个小数最大是(),最小是()。

7、用8、2、5这三张数字卡片一共能组成()个不同的三位数。

8、将9.452的小数点去掉,这个数就扩大(),把30.5的小数点向左移动两位是()。

9、甲乙两数的和是36.3,把甲数的小数点向右移动一位就和乙数相等,甲数是(),乙数是()。

10、直角三角形的三条边的长分别是0.6米、0.8米和1米,这个三角形的面积是()平方米。

11、一个梯形的面积是12平方厘米,上底和下底的和是0.08米,梯形的高是()厘米。

12、五(4)班有男生ⅹ人,女生人数是男生的3倍多12人,女生有()人。

二、选择题:(每题2分,共10分)

1、用24个边长是1厘米的正方形拼成长方形,有()种不同的'拼法。

①4②6③3

2、把一个小数的小数点去掉后,比原数大39.6,这个小数是()。

①3.96②3.6③4.4

3、一堆圆木,堆成梯形状,下层12根,上层7根,每相邻两层差一根,这堆圆木共有()根。

①.57②.50③.76

4、200名学生乘车去秋游,一辆汽车最多坐45名学生,至少要多少辆这样的汽车?

①.4辆②.5辆③.6辆

5、7.254÷0.08,当商为90.6时,余数是()。

①0.006②0.6③0.06

三、判断题:(对的打“√”,错的打“×”)(每题1分,共5分)

1、循环小数都是无限小数()

2、平行四边形的面积是三角形面积的2倍。()

3、一天,凌晨的最低气温是-3℃,中午气温上升2℃,是-5℃。()

4、大于0.4而小于0.6的小数只有0.5()

5、一个大于0的数除以0.5,商一定比这个数大.()

四、计算:(27分)

1、直接写出得数:(6分)

0.036×100=12.1÷1.1=0.45×10=9.6÷0.32=

6+3.4=0.8+0.8÷0.8=0.24+0.76=1.5×0.2÷0.3=

0.28÷0.01=10―0.1=4.3×0.2=2.25÷0.01=

2、用竖式计算:(每题3分,共9分)

(1)3.05×0.66=(2)8.84÷1.7=(3)3.9÷0.65=

3、计数下面各题,能简算的要简算:(每题3分,共12分)

0.25×3.2×12.50.8×(12.5+1.25)

0.63×99+0.633.5×5.2+0.35×48

篇10:数学二年级期末测试题参考

数学二年级期末测试题参考

一、填空。

1.把12个☆平均分成3份,每份是()个;12个☆,每4个分成一份,可以分成()份。

2.100厘米=()米27米-9米=()米

3.画一条3厘米长的线段,一般应从尺的()刻度开始画起,画到()厘米的地方。

4.一星期有7天,28天是()星期。

5.()里最大能填几?

()×4<266×()<3268>9×()

6.用下面的口廖写出四道算式。

四七二十八()×()=()×()=()

()÷()=()÷()=()

8.把6、7、8、9填在合适的□里。

9.在○里填上“>”、“<”或“=”。

35÷7○68×6○487×7○4740÷5○7

二、计算。

1.口算。

2×9=40÷5=8×1=36÷9=79-63=21÷3=5×4=53+20=8×3=25÷5=

6×9=64÷8=48+52=7×7=42÷7=

2.列竖式计算。

6×9=72÷8=65÷7=

26+45+17=85-27+30=71-(65-43)=

3.计算下面各题。

4×7+20=2×2×4=72÷9÷4=

60-(30-15)=6×7-30=54+26-30=

4.列式计算

(1)7的'6倍是多少?

(2)32是4的几倍?

三、应用题.

1.同学们剪小旗,小黄旗有8面,小红旗的面数是小黄旗的3倍(先提出问题,再列式计算。)

2.二年级(1)班的同学种了6行花,每行8棵,一共种了多少棵?

3.小林家收南瓜7个,冬瓜42个,冬瓜的个数是南瓜的几倍?

4.有35米白布,每5米做一条被单,可以做几条被单?

5.操场上有一群学生,双来了男生、女生各7人,新来了多少学生?现在操场上共有43个学生原来有多少个学生?

相关图文

推荐文章