八年级数学上册测试题(精选8篇)
八年级数学上册测试题
一、选择题(10小题,每题3分,共30分)
1.在实数、0、、-1、2-π、中,无理数的个数是
A.2个B.3个C.4个D.5个
2.以直角三角形的两直角边为边长所作正方形的面积分别是9和16,则斜边长为( )
A.25B.5C.15D.225
3.如果三角形的三边5,m,n满足,那么这个三角形是( )
A.锐角三角形B.直角三角形C.钝角三角形D.无法确定
4、下列说法正确的是()
A.的立方根是0.4B.的平方根是
C.16的立方根是D.0.01的立方根是0.00000
5.若一个数的立方根等于这个数的算术平方根,则这个数是()
A.0B.0和1C.1D.±1和0
6.下列计算正确的是( )
A、=B、C、D、
7.若-3,则的取值范围是().
A.>3B.≥3C.<3D.≤3
8.若代数式有意义,则的取值范围是()
A.B.C.D.
9、如图,以数轴的单位长线段为边作一个正方形,以数轴的原点为旋转中心,将过原点的对角线顺时针旋转,使对角线的另一端点落在数轴正半轴的点A处,则点A表示的数是()
A、B、1.4C、D、
10.如图,已知在中,,,分别以,为直径作半圆,面积分别记为,,则 的`值等于()
A.9B.25C.50D.16
一、填空题(共10小题,每小题3分,共30分)
11、的算数平方根是,
12、1-的相反数是_______,绝对值是__________.
13、一个实数的平方根大于2小于3,那么它的整数位上可能取到的数值为__________.
14、计算:(1)=,(2)=.
15、比较________(填“<”“>”“=”).
16、如果=2,那么(x 3)2=______.
17、在Rt△ABC中,斜边AB=2,则AB2 BC2 CA2= .
18、把一根12厘米长的铁丝,从一端起顺次截下3厘米和5厘米的两根铁
丝,用这三条铁丝摆成的三角形是 .
19、一个三角形三边分别为8,15,17,那么最长边上的高为 .
20、已知,则由x,y,z为三边的三角形是 .
四、解答题(共40分)
21、计算题(每小题5分,共15分)
1)2)
22、(本小题6分)如图3,在四边形ABCD中,∠BAD=∠DBC=90°,若AD=4cm,AB=3cm,BC=12cm,求CD的长及四边形ABCD的面积.
23、(本小题6分)已知是的整数部分,是的小数部分,求的值。
24、(本题6分)已知2a-1的平方根是±3,3a b-1的算术平方根是4,求a 2b的值。
25、(7分)如图,一架长25米的云梯,斜靠在一面墙上,梯子底端离墙7米,如果梯子的顶端下滑5米,那么云梯的底端在水平方向将滑多少米?(保留一位小数)
篇2:八年级上册数学测试题
八年级上册数学测试题
1.某校学生在希望工程献爱心的活动中,省下零用钱为贫困山区失学儿童捐款.各班捐款数额如下(单位为元):99, 101,103,97,98,102,96, 104,95,105,则该校平均每班捐款为______元.
2.某小组的一次测验成绩统计如下:得100分的3人,90分的3人,80分的2人,65分的2人,60分的1人,54分的1人,计算本次测验的小组平均成绩是______分.
3.为了解某校初三年级学生的`视力情况,从中抽样检查了100人的视力,在这个问题中个体是______,样本的容量是______.
4.为了考察某地区初中毕业生数学升学考试的情况,从中抽查了200名考生的成绩,在这个问题中,总体是______,样本容量是______.
5.若两组数x1,x2,…,xn;y1,y2,…,yn,它们的平均数平均数是______.
6.为了了解10000个灯泡的使用寿命,从中抽取了20个进行试验检查,在这个问题中,总体是______,个体是______,样本是______,样本容量是______.
7.为了考察初中三年级共一万名考生的数学升学成绩,从中抽出了10袋试卷,每袋30份,那么样本容量是______.
答案:1.100 3.每个学生的视力,1004.这个地区所有考生的成绩,200
6.10000个灯泡的使用寿命,每个灯泡的使用寿命,20
7.300
篇3:八年级数学上册期中测试题
八年级数学上册期中测试题
一、填空题。(每小题3分,共30分)
1、64的平方根是 ,6.25的算术平方根是 ,-3的立方根是 。
2、 = , = ,= 。
3、= , = , = 。
4、已知(x-1)2=81 ,则x = 。若-2x+ ≥0,则x 。
5、下列各数:- , 0.1 , 1.414 , , π , , 中无理数是 。
6、比较大小: 0.6(用“>”、“<”或“=”填空) 。
7、函数y =3是常量函数,它是一条经过y轴上的( )且与 轴平行的直线。
8、圆的面积计算公式S=πR2中 是常量, 是变量。
9、我们把无限不循环小数叫 ,有理数和无理数统称,实数和的点一一对应。
10、一次函数y=0.5x+3与x轴的交点坐标是 ,与y轴的交点坐标是 ,x= 时,和y的值相等。
二、选择题。(每小题3分,共30分)
11、化简 =( )。
A、11 B、 C、 11 D、 3
12、数0.030270 中有效数字有( )个。
A、7 B、6 C、5 D、4
13、点P(2,y)与P′(3-x,5)关于y轴成轴反射,则x、y的值分别为( )。
A、1,5 B、1,- 5 C、 5,5 D、5,-5
14、一次函数y=-x+3上有两点A(x1,y1), B(x2, y2),若y1<y2,则x1 与x2 的关系是( )。
A、x1 >x2 B、x1 =x2 C、 x1 <x2 D、不确定
15、函数y=(m+2)m-3是正比例函数,则m=( )。
A、 ±2 B、-2 C、 2 D、4
16、 的`算术平方根是( )。
A、9 B、-9 C、 3 D、±3
17、已知一次函数的图象经过点A(-1,4),B(2,-5),则这个函数的解析式为( )。
A、y=-5x+3 B、y=3x+1 C、y=-3x-1 D、y=-3x+
18、若直线y=k1 x+b1 ,与直线y=k2 x+b2 在同一坐标系里相互垂直,则必须满足( )。
A、k1 k2 =1 B、k1≠0, k2 ≠0 C 、k1 k2 =-1 D、b1≠0,b2≠0
19、将△ABC向左平移3个单位得到△ ,已知A点的坐标是(-3,7),则A′的坐标是( )。
A、(-6, 4) B、(0, 10) C、( - 6, 7) D、(0, 7)
20、某天早晨,小强从家出发,以V1的速度前往学校。途中在一饮食店吃早点,之后以V2的速度向学校前进,已知v1>v2,下面的图象中表示小强从家到学校的路程s(千米)与时间t(分钟)之间的关系的是( )。
A B C D
三、解答题。(8+6+6+10+10=40)
21、计算。(要有过度步骤,4:八年级上册数学测试题答案
八年级上册数学测试题答案
5:八年级数学上册6:数学八年级上册的测试题及答案
一、选择题:(本大题共10小题,每小题3分,满分30分.在每小题给出的四个选项中,只有一项是符合题目要求的.)
1.在代数式,,0,,,,中单项式的个数是
(A)2个(B)3个(C)4个(D)5个
2.下列各式计算正确的是().
(A)2x(3x-2)=5x2-4x(B)(2y 3x)(3x-2y)=9x2-4y2
(C)(x 2)2=x2 2x 4(D)(x 2)(2x-1)=2x2 5x-2
3.下列说法正确的是()
(A)近似数3.1与3.10精确度相同(B)近似数3千与3000的有效数字相同
(C)近似数精确到百位,有3个有效数字4,7,0
(D)近似数234.80精确到十分位,有4个有效数字2,3,4,8
4.大气中直径不大于0.0000025米的颗粒物即PM2.5,它富含大量有毒、有害物质且在大气中停留时间长、输送距离远.0.0000025用科学计数法表示是().
(A)(B)(C)(D)
5下列说法中,正确的个数是( )
①斜边和一直角边对应相等的两个直角三角形全等;
②有两边对应相等的两个直角三角形全等;
③一锐角和斜边对应相等的两个直角三角形全等;
④两个锐角对应相等的两个直角三角形全等
(A)1个(B)2个(C)3个(D)4个
6.如图,在△ABC中,,,BD、CE分别
为、的角平分线,那么等腰三角形共有().
(A)2个(B)3个(C)4个(D)5个
7.下列世界博览会标志中是轴对称图形的是()
(A)(B)(C)(D)
8.小狗在如图所示的方砖上走来走去,最终没有停在黑色方砖上的概率为()
(A)(B)(C)(D)
9.室内墙壁上挂一平面镜,小明在平面镜内看到他背后墙上时钟的示数如右图所示,则这时的实际时间应是()
(A)3∶20(B)3∶40(C)4∶20(D)8∶20
10.如图,下列条件中,不能判断直线l1∥l2的是()
(A)∠1=∠3(B)∠2=∠3(C)∠4=∠5(D)∠2 ∠4=180
7:八年级英语上册测试题
一、选择填空(15分)
( )1. I usually go to the movies__ a month.
A. twice B. twice time C. two times D. twice times
( )2. _____do they play football? --Always.
A. How soon B. How much C . How many D. How often
( )3. His mother wants him _____ at home today.
A. stays B. stayed C. to stay D. staying
( )4. Here _____ the results _____ the students activity survey.
A. is, with B. are, of C. is, of D. are, with
( )5. _____ Dashan is from Canada ,_____he can speak Chinese very well.
A. Although; but B. Although; / C. Although; so D. /; so
( )6.Good _____habits help me get good grades.
A. studying B. study C. studied D. studies
( )7. I think doing sports is _____our health.
A. good at B. bad for C. good for D. good to
( )8. Is her watch _______ yours or different?
A. the same B. the same as C. same as D. the same to
( )9. My mother is out, so I have to _____ my young sister at home.
A. look at B. look after C. look for D. look over
( )10.Let us talk about the difference ______Chinese and English names.
A. on B. of C. between D. with
( )11.What ________ she usually _______ after class?
A. is; doing B. does; do C. does; does D. is; do
( )12. Kate hardly ever does her homework on weekends, ________?
A. is she B. isn’t she C. does she D. doesn’t she
( )13. I think eating more ________ food can help you keep ________.
A. health; health B. health; healthy
C. healthy; health D. healthy; healthy
( )14. “____________give up, then you can be successful.”
A. Always B. Sometimes C. Never D. No
( )15.______ homework, we do their homework on Sunday.
A. As for B. As to C. As of D. As from
二、完形填空(10分)
It’s September 1st, and we’re all back to school. It’s good to 16 all my teachers and friends again. They all 17 fine.
We’re in Grade Eight this year. We have 18 new subjects. I’m not very 19 at Chinese, but Han Mei says she can 20 me. I think I can 21 it better.
I like English very much. Zhang Hong likes English, 22 . But she needs help. I 23 I can help her.
Mr. Hu is our new English teacher. He 24 know all of us, so he has our names on a piece of paper and 25 our names before he begins his lesson.
( )16. A. see B. watch C. find D. look
( )17. A. do B. see C. look D. sound
( )18. A. a lot B. some C. lot D. much
( )19. A. well B. good C. bad D. nice
( )20. A. learn B. give C. help D. need
( )21. A. do B. play C. look D. feel
( )22. A. either B. very C. much D. too
( )23. A. am afraid B. think C. am sorry D. want
( )24. A. doesn’t B. don’t C. does D. do
( )25. A. gives B. calls C. asks D. tells
三、阅读理解(30分)
A
Liu Xiang is a famous runner in the world. He was the winner(获胜者) of the Athens Olympics(雅典奥运会) . The Chinese people are proud (自豪) of him. He is a hard-working young man. He is still strong and healthy. Why is he in good health? He usually gets up early in the morning and exercises every day. He likes listening to music and he sings well. He has good eating habits. He never eats junk food and hardly ever smokes and drinks. He goes to bed early and sleeps 8 hours every night. He often says, “It is important(重要) for health to have a good lifestyle.”
根据短文,判断对错。对的写T,错的写F.
( )26. Liu Xiang is a singer.
( ) 27. He never wins the Olympics.
( ) 28. He doesn’t have a healthy eating habit.
( )29. He likes singing and smoking very much.
( )30. He has enough (足够的) sleep and he is healthy.
B
Fish and chips, and Chinese take-away food are very popular in England. But they are less popular in the U.S.A. In the U.S.A, they eat take-away food, too, like chicken. But the most popular kind of take-away food is the hamburger(汉堡包). It looks like bread with meat in it. Ham(火腿)is a kind of pork-but the hamburger does not have any pork in it. It has beef in it. The beef is inside a kind of cake. Hamburgers are delicious. They are very popular in the U.S.A. They are also popular in England and Australia.
( ) 31. Fish and chips are very popular ________.
A. in England B. in Australia C. in the U.S.A D. in Canada
( ) 32. In the U.S.A the most popular kind of take-away food is________.
A. hamburger B. fish C. chips D. bread
( ) 33. The hamburger does not have any ________ in it.
A. beef B. pork C. fish D. chips
( ) 34. Hamburgers are ________.
A. delicious B. terrible C. awful D. bad
( ) 35. Hamburger is a kind of ________.
A. meat B. drink C. food D. vegetable
C
Perhaps you have learnt a lot about the Internet, but what is it?
The Internet is many different networks around the world. A network is a group of computers put together. These networks joined together are called the Internet.
Maybe that doesn’t sound interesting. But when we’ve joined the Internet. There are lots of things we can do. We can have a lot of interest on the World Wide Web (). We can use the internet instead of a library to find all kinds of information for our homework.. We can find information about our favorite sports or film stars and do shopping on the Internet. We can also send messages to other people by e-mail. It is much cheaper and quicker than calling our friends or sending letters.
Thanks to the Internet, the world is becoming smaller and smaller. People can now work at home with a computer in front, getting and sending the information they need. They can buy or sell whatever they want by the Internet. But do you know 98%of the information is English? So what will English be like tomorrow?
( ) 36. The passage is mainly about_____.
A. the Internet B. information C. computers D. e-mail
( ) 37. The quickest and cheapest way for people to send message to their friends is ____.
A. by post B. by e-mail C. by telephone D. by TV
( ) 38. The Internet can not be used to _____.
A. find information for our homework..
B. get some information about our favorite sports stars.
C. do some shopping.
D. do some housework
( ) 39. Which of the following is NOT true?
A. The Internet is a big computer.
B. The Internet is lots of computer networks.
C. The Internet is very helpful.
D. People can work at home with the help of the Internet.
( ) 40. What does the writer try to tell us with the last two sentences?
A. The Internet is more and more popular.
B. All the information is English.
C. English is important in using the Internet.
D. Every computer must join the Internet.
1.八年级英语上册检测试题
2.八年级英语上册期中测试题
3.20八年级英语上册期末试题
4.七年级英语上册预测试题
5.三年级上册英语期末测试题
6.最新初二英语上册8:八年级上册地理测试题
一.选择题。(每小题只有1个符合题意的答案,将正确选项的序号填入下列答题框中。每题2分,共50分)
1.下列不属于自然资源的是:()A.阳光B.土地C.毛皮D.石油
2.汽车制造与下列哪种自然资源有关:()
A.土地B.草原C.矿产D.海水
3、三江平原、松嫩平原粮食集中产区的主要粮食作物是:()
A、水稻B、冬小麦C、春小麦D、谷子
4.我国水能资源最丰富的河流是()
A.长江B.黄河C.珠江D.松花江
5.我国西北地区的土地利用类型主要是()
A.草地B.林地C.耕地D.建筑用地
6.从成都到拉萨沿途进行科学考察应采用的运输方式是()
A.铁路B.公路C.水运D.航空
7.导致我国南北方作物熟制差异的主要自然因素是()
A.地形B.水分C.热量D.土壤
()
8.“泼水节”是下列哪个少数民族的.节日
A.朝鲜族B.壮族C.彝族D.傣族
9.被称为经济发展先行官的产业是()
A.工业B.农业C.交通D.商业
10.“十分珍惜和合理利用每一寸土地,切实保护耕地”,是我
国管理和保护土地资源的一项基本国策,其最终目的是:()
A、利用土地B、永续利用C、改造土地D、扩大土地
11、造成水资源短缺的人为因素是:()
A人口剧增、社会经济发展、水污染严重B水资源季节分配不均
C、水资源地区分配不均D、水资源空间分配不均
12、可以有效调控径流和水量季节变化的措施是:()
A修建水库B跨流域调水C合理分配、节约用水D保护水源、净化污水
13、我国的耕地资源主要分布在:()
A、平原和盆地中B、季风区的平原和低缓丘陵地区
C、西部地区D、年降水量400---800毫米的半湿润地区
14.北京再次提高水价的目的是:()
A、提高经济效益B为水利工程建设积累雄厚资金
C、提高人们的节水意识、节约用水
D、改变人们长期低价甚至无偿使用水资源的传统观念
15.把长江流域的河水调到华北和西北地区的水利工程是:()
A、引黄济青B、引滦入津C、引黄入晋D、南水北调
16.我国最早建立的高新技术试验区是()
A上海淮海路B.北京中关村C.南京珠江路D.天津高新技术产业园区
17.下列工业部门中属于重工业的是()
A.纺织业B.钢铁工业C.食品工业D.印刷工业
18.我国降水主要集中在()
A.春季B.夏季C.秋季D.冬季
19.我国人口最多的少数民族是()
A.壮族B.回族C.黎族D.高山族
20.世界上使用人数最多的语言是()
A.英语B.法语C.阿拉伯语D.汉语
21.关于水土资源的地区分布的说法中正确的是()
A.北方水土资源丰富B.南方水土资源丰富
C.北方水多土少D.南方水多土少
22.右图是哪一种标志()
A.环保标志B.节水标志C.节能标志D.奥运标志
23.我国以重工业为主的工业区是()
A辽中南B.沪宁杭C.珠江三角D.京津唐
24.沿边地区产业的发展应侧重于()
A.高新技术B.贸易导向型C.矿产开发D与军工有密切关系型
25.世界上人口最多的国家是:()
A、印度B、日本C、中国D、美国
二、填空题(每题1分,共30分)
26.从半球位置看,中国属于半球和半球。
从纬度位置看,我国大部分在温带,少部分在温带,没有带。
从海陆位置看,我国位于洲东部,洋西岸。
27.我国陆上邻国有个,隔海相望的国家有个
28.我国少数民族的分布具有、的特点。
29.我国四大高原是高原,高原,高原和高原。
四大盆地是盆地,盆地,盆地和盆地。
三大平原是平原,平原,和平原。
30.长江沿线是以、南京、、等城市为中心的沿江经济发达地带。
31.自然资源可分为资源和资源两大类。
32.我国高新技术产业分布,是多依附于,呈现出,的特点。