八年级下册Unit4-5测试
一、单项选择:(共25题,计25分)
()1. I’m going to take a vacation. Could you please _____me _____some information about interesting places to travel?
A. offer, to
B. offer, for
C. provide, with
D. provide, for
()2. After my alarm clock every morning , I get up and get dressed .
A turns on
B turns off
C goes on
D goes off
()3.-Do you mind _____your room? ---No, I’ll do that after finishing _____this article.
A. clean, write
B. clean, writing
C. cleaning, write
D. cleaning, writing
()4.Mr. Black asks the kids ________ in the river, because it’s too dangerous.
A. swim
B. to swim
C. not to swim
D. swims
()5.Mr.Li asks us to remember that ____careful we are,_____mistakes we will make.
A. the more,the less
B.the more, the more
C. the more, the fewer
D. the less, the fewer ()6. Mary’s grandpa is always ______ in the mountain village. He tells her he feels very______. So she’s going to visit him next week.
A. alone; alone
B. lonely; lonely
C. lonely; alone
D. alone; lonely
()7.Thank you for your help, Linda. You made ____ possible for us to finish the work in time.
A. this
B. it
C. them
D. that
()8.My sister ______ go to bed _______ my mother came back last night.
A. not until
B. doesn't; until
C. didn't; until
D. aren't; until
()9. Can you _______ me your bike?
---With pleasure. But you mustn’t ____ it to others.
A. lend, borrow
B. borrow, lend
C. lend, lend
D. borrow, borrow
()10.I am not going swimming tomorrow afternoon. ---_____. I have to clean up my bedroom.
A. So am I
B. Neither am I
C. Neither I am
D. So I am
()11. Could you please_____ the piano so loudly? Your brother is having a rest now.
A. not to play
B. not play
C. don’t play
D. to not play
()12. This math question is too difficult. Can you help me ?
A.work on it
B.work out it
C.work it out
D.work for it
()13. — Look! The cat ______ from the tree.
— Yes. It ______ the tree just now.
A. is jumping down; climbed up
B. is jumping down; is climbing up
C. jumps down; was climbing up
D. jumps down; climbed
()14.He is very angry with his mother, because his mother always him with the best student.
https://www.doczj.com/doc/f11777737.html,pares
https://www.doczj.com/doc/f11777737.html,plains
C.tells
D.makes
( )15.He should the teacher.
A.explain
B.explain to
C.explained
D.explained to
( )16.Could I watch TV? ---No, you ___. You ____finish your homework first.
A. can’t, must
B. can’t, can
C. couldn’t, must
D. couldn’t, can
( )17. The boy with two dogs ________ in the yard when the earthquake hit the city.
A. is playing
B. are playing
C. were playing
D. was playing
( )18.Mary will make a plan as soon as she ____________her homework.
A. finishes
B. finish
C. will finish
D. Finished
( )19.His father doesn’t allow him swimming alone.
A.goes
B.to go
C.going
D.go
( )20. My father was reading a newspaper while my mother ________ dinner.
A. is cooking
B. cooks
C. was cooking
D. will cook
( )21. give him a watch?
A.What about
B.Let’s
C.Why don’t
D.Why don’t you
( )22. All the students were sleeping _______they heard a man _______“help”.
A. when ; shouting
B. while; to shout
C. when ; to shout
D. while; shouted ( )23. .—I went to the moon and took a walk there last night .
A Good luck
B Good idea
C You’re kidding
D Best wish
( )24. he is very poor, he feels very happy.
A.Although;but
B.Although;/
C.Because;so
D.Because;/
( )25. It’s raining now. I would like to watch TV at home ________playing soccer outside.
A.instead
B.instead of
C.because of
D.afraid of
二、完形填空(共15小题,计15分)
____1__ a cold November afternoon, my mother and I were walking back home from a pizza store. We had bought many things. We were dressed warmly, and I was feeling a little 2 as I was carrying our shopping bag, so I decided to throw something away. I was walking towards a dustbin(垃圾箱) 3 I noticed a poor man walking out of the restaurant in front of us. He headed over to the nearby dustbin and started looking through it.
I suddenly felt very 4 because I was about to throw away a new drink just because it was too heavy. I walked up to him and handed the 5 and some bread over to him. The man looked up 6 and took what I gave him. A huge smile 7 on his face. I felt I couldn’t be happier with 8 . But then he said, “Wow, this is my son’s lucky day!” With that, he thanked me happily and started off on his bike. I 9 heard him singing as he rode away. I got a warm 10 inside. I now understand what it 11 by the saying “Giving is getting”. 12 it was only a little action, I got and learned more in those two minutes than I did in the rest of the month. Everyone in the world 13 help. Everyone can give help and everyone can be helped.
The look of that man’s happiness appears(出现) in my mind 14 I have the chance to do something nice. This is the power(力量)of 15 .
( )1.A. On B. At C. In D. To
( )2. A. worried B. interested C. surprised D. tired
( ).3. A. and B. but C. so D. When
( )4. A. nervous B. happy C. sorry D. proud
( )5. A. money B. toys C. drink D. Clothes
( )6. A. in silence B. in surpriseC. in anger D. in excitement
( )7. A. turned B. appeared C. went D. ran
( )8. A. myself B. ourselves C. yourself D. himself
( )9. A. still B. once C. even D. Ever
( )10. A. idea B. welcomeC. wordD. feeling
( )11. A. aimsB. means C. looks D. Offers
( )12. A. If B. Though C. Because D. While
( )13. A. needs B. gives C. takes D. Brings
( )14. A. whichever B. howeverC. whatever D. whenever
( )15. A. kindness B. friendship C. knowledge D. feeling
三、根据句意,用括号内所给单词的适当形式填空。(共20小题,计20分)
1.We were climbing up the mountain when it began to rain ___________(heavy).
2.Ben didn’t fall asleep until the wind ___________(die down)at around 3:00 a.m.
3.He had a fight with his best friend, and they walked home in__________ (silent).
4.I was too tired and still sleeping when my alarm ___________( go off).
5.Kate didn’t think her friend was telling the ____________(true) about the event
6. (match) should be taken away from babies.
7.It is raining heavy) outside the house.
8.What's happening in Canada recent).
9.People living in the country are very (friend).
10.It was not until the next day that I learned the (true).
11. We don’t allow _________ (play) cards in out house.
12.Why not ________ (help ) your parents?
13.You ’d better ________ (open )the door.
14. Let’s ________ (communication ) with the old man .
15.Do you allow me ________ (compare) with my brother ?
16.The hotel offers ______ (give)out food and drinks.
17.Dave went cycling instead of _______ (skate)
18.Don’t refuse ______ ( help ) others when they are in trouble.
19. My teacher gave me some good_____(advice)
20.It`s good for boy`s __________ (develope) to read English.
四、根据汉语意思完成句子。(共15空,计15分)
1.你可以给他打电话。You can him .
2.他正在浏览一本杂志。He is a magazine.
3.他和他的同学相处得不好。He can’t his classmates.
4.昨天他把词典还给我了。He the dictionary to me yesterday.
5.她常常和她的父母争吵。She often her parents.
6.当他醒来时,他爸爸正在看着他。When he , his father was watching him. .
7.那时他正在等他爸爸。He was his father at that time.
八年级下学期数学测试卷 一、选择题: 1.如果代数式有意义,那么x的取值范围是() A.x≥0 B.x≠1 C.x>0 D.x≥0且x≠1 2. 下列各组数中,以a、b、c为边的三角形不是直角三角形的是() A 1.5,2,3 a b c === B 7,24,25 a b c === C 6,8,10 a b c === D 3,4,5 a b c === 3.如图,直线l上有三个正方形a b c ,,,若a c ,的面积分别为5和11,则b的面积为() A.4 B.6 C.16 D.55 4. 如图,在平行四边形ABCD中,下列结论中错误的是() A.∠1=∠2B.∠BAD=∠BCD C.A B=CD D.A C⊥BD 5. 如图,在平行四边形ABCD中,对角线AC,BD相交于点O,点E,F分别是边AD,AB的中点,EF交AC于点H ,则的值为() A.1B.C.D.6.0) y kx b k =+≠ (的图象如图所示,当0 y>时,x的取值范围是 () A.0 x< B.0 x> C.2 x< D.2 x> 7. 体育课上,20人一组进行足球比赛,每人射点球5次,已知某一组的进球总数为49个,进球情况记录如下表,其中进2个球的有x人,进3个球的有y人, 进球数0 1 2 3 4 5 人数 1 5 x y 3 2 A.y=x+9与y= 3 x+ 3 B.y=-x+9与y= 3 x+ 3 C.y=-x+9与y=- 2 3 x+ 22 3 D.y=x+9与y=- 2 3 x+ 22 3 8. 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= 9.已知:ΔABC中,AB=4,AC=3,BC=7,则ΔABC的面积是( ) A.6 B.5 C.1.57 D.27 10. 如图,已知一条直线经过点A(0,2)、点B(1,0),将这条直线向左平移与x轴、y 轴分别交与点C、点D.若DB=DC,则直线CD的函数解析式为. a b c
八年级(下)期末数学试卷 一、选择题(本题有10小题,每小题3分,满分30分) 1.下列二次根式中,是最简二次根式的是() A. B.C.D. A.94 B.96 C.113 D.113.5 3.在一个直角三角形中,已知两直角边分别为6cm,8cm,则下列结论不正确的是() A.斜边长为10cm B.周长为25cm C.面积为24cm2D.斜边上的中线长为5cm 4.如图,?ABCD中,对角线AC,BD相交于点O,OA=3,若要使平行四边形ABCD为矩形,则OB的长度为() A.4 B.3 C.2 D.1 x与方差S2: 平均数 ) A.甲B.乙C.丙D.丁 6.下列各命题的逆命题成立的是() A.全等三角形的对应角相等 B.如果两个数相等,那么它们的绝对值相等 C.对角线互相平分的四边形是平行四边形 D.如果两个角都是90°,那么这两个角相等 7.已知直线y=kx+b与y=2x﹣5平行且经过点(1,3),则y=kx+b的表达式是() A.y=x+2 B.y=2x+1 C.y=2x+2 D.y=2x+3 8.已知正比例函数y=kx,且y随x的增大而减少,则直线y=2x+k的图象是() A. B. C. D. 9.如图,?ABCD中,AB=4,BC=3,∠DCB=30°,动点E从B点出发,沿B﹣C﹣D﹣A运动至A 点停止,设运动的路程为x,△ABE的面积为y,则y与x的函数图象用图象表示正确的是()
A . B . C . D . 10.在平面直角坐标系中,点A (0,4),B (3,0),且四边形ABCD 为正方形,若直线l :y=kx +4与线段BC 有交点,则k 的取值范围是( ) A .k ≤ B .﹣≤k ≤﹣ C .﹣≤k ≤﹣1 D .﹣≤k ≤ 二、填空题(共6小题,每小题3分,满分18分) 11.化简: = . 12.如图,?ABCD 中,∠DCE=70°,则∠A= . 13.如果菱形有一个内角是60°,周长为32,那么较短对角线长是 . 14.如图,?ABCD 的对角线AC 与BD 相交于点O ,E 为BC 边中点,已知AB=6cm ,则OE 的长为 cm . 15.直线l 1:y=x +1与直线l 2:y=mx +n 相交于点P (a ,2),则关于x 的不等式x +1≥mx +n 的解集为 . 16.如图,在矩形ABCD 中的AB 边长为6,BC 边长为9,E 为BC 上一点,且CE=2BE ,将△ABE 翻折得到△AFE ,延长EF 交AD 边于点M ,则线段DM 的长度为 .
八年级下册测试题 Prepared on 22 November 2020
(本试卷满分150分 考试时间120分钟) 一、选择题(每小题3分,计30分) 1.下列各式是二次根式的有( ) ①a -(a<0) ②a (a<0) ③21 +x (x<1) ④22x -- ⑤2 A 2个 B 3个 C 4个 D 5个 2.下列命题中的真命题是( ) A 两个全等图形一定成中心对称。 B 四边形若有对称中心,则只有一个。 C 中心对称图形也是轴对称图形。 D 中心对称图形是关于一点对称的两个全等图形。 3.设a=x -2, b=2-x , c=(2-x )2, d=x+2,则在a 、b 、c 、d 四个数中,其值一定为非负数的数共有( ) A 1个 B 2个 C 3个 D 4个 4.矩形、菱形、正方形都具有的性质是 ( ) A 对角线相等 B 对角线互相平分 C 对角线平分一组对角 D 对角线相等且互相垂直平分 5.化简X 51 ,其过程与结果都正确的是 ( ) A X 51 =x x x x x x 55522== B X 51=x x x 551=
C X 51=()()x x 515122 = D X 51 =x x x x x 555551=?? 6.在梯形ABCD 中,AD ∥BC ,则∠A ∶∠B ∶∠C ∶∠D 可能为 ( ) A 3∶5∶6∶4 B 3∶4∶5∶6 C 4∶5∶6∶3 D 6∶5∶4∶3 7.在下列二次根式:①5.2 ② x 1 ③x 1 2 ④22y x + ⑤x x -4中,是最简二次根式的有 ( ) A 3个 B 2个 C 1个 D 0个 8.已知四边形ABCD 的对角线AC 、BD 相交于O 点,若顺次连结这个四边形各边中点,所得的四边形是正方形,那么这个四边形满足( ) (A ) AB=CD ,AC=BD ,AD=BC (B ) OA=OC ,OB=OD ,AC ⊥BD (C ) OA=OB=OC=OD ,AC ⊥BD (D ) AC=BD ,AC ⊥BD 9.下列说法中,正确的是 ( ) A 同类二次根式一定是最简二次根式 B 同类二次根式一定互为有理化因式 C 同类二次根式的被开方数一定相等 D 同类二次根式的值一定相等 10.一条直线把平行四边形的面积平分,这样的直线有 ( ) A 2条 B 4条 C 6条 D 无数条 二、填空题(每小题3分,计24分)。 11.若21)2)(1(-?-=--x x x x ,则x 的取值范围是 _________ 12.如图,在菱形ABCD 中,∠ABC=600,AC=4,则BD 长为 ________ 13.将43 24-根号外的因式移进根号内,结果等于______________
八年级语文下册阶段测试试题 语文阶段检测题注意事项: 1.本试题共8页,满分120分,考试时间120分钟。 2.答卷前,考生务必将考点、姓名、准考证号、座号填写在试卷的密封线内。 3.本试题包括四个大题,23个小题,全部用蓝黑色钢笔或圆珠笔答在试卷上。一、积累与运用(15分) 1.按原文默写。(共6分,每小题1分) A.___________________,直挂云帆济沧海。(李白《行路难》) B.深林人不知, ___________________。(王维《竹里馆》) C.___________________,野渡无人舟白横。(韦应物《滁州西涧》) D.浊酒一杯家万里, ___________________。(范仲淹《渔家傲?秋思》) E.吊影分为千里雁,___________________。(白居易《望月有感》) F.人恒过然后能改,___________________,征于色发于声而后喻。(孟子《生于忧患,死于安乐》) 2.阅读下面这则材料,按要求同答问题。(4分) 地震发生以后,建筑物并不会马上倒塌,一般都要间隔10多秒的时间,目前地震救援领域存在着“黄金12秒”的说法。如果利用好这“黄金12秒”,就会大大减少地震中人员的伤亡。在汶川大地震的救援中,绝大多数学生缺乏基本的地震逃生技巧,三楼以上的学生也在奋不顾身地向外跑,结果很多被压在楼梯上了。一般楼梯是整个建筑最为脆弱的部分,如果没有时间跑出去,就不要往外跑,而要就近躲避,这样或许有生存下来的希望。” 自救时,要选“黄金三角”。当建筑物倒塌落在物体或家具上时,屋顶在重力作用下撞击到这些物体,使得靠近它们的地方留下一个空间。这个空间就被我们称作生命的“黄金三角”。据统计,地震发生以后,逃生出来的人员中高达97%6~都是在自救或互救中逃出来的,真正被救援队救出来的人只有3%左右。.①为文中加点的字注音。(1分) 倒( )塌间( )隔②材料中的画线句有语痫,请用所给的修改符号(不必全部使用)直接在原文上进行修改。(1分) ③请在下面的空格内为这则材料拟写标题。(20字以内)(2分) 3.名著阅读。(5分) 我一想到还有一顿早餐,便下楼去了。我轻手轻脚进了房间,他还没有发现我,我就已瞧见他了。说实在目睹那么生龙活虎的人沦为一个恹恹的弱者,真让人心酸。他
八年级下册数学综合测试卷 一、选择题:(本大题共8题,每小题3分,共30分) 1、若分式1 ||-X X 无意义,则X 的值是:( ) A .0 B .1 C .-1 D .±1 2、一次函数y=kx+b 与反比例函数x k y = 的图像如图1所示, 则下列说法正确的是:( ) A .它们的函数值y 随x 的增大而增大; B .它们的函数值y 随x 的增大而减小; C .k<0 D .它们的自变量x 的取值为全体实数。 3、在四边形ABCD 中,∠B= 90 , ∠A: ∠D: ∠C=1:2:3,则∠C 为 ( ) A 、 160 B 、 135 C 、 90 D 、 45 4、已知三角形两边长为2和6,要使这个三角形为直角三角形,则第三边的长为:( ) A . 2 B .102 C .10224或 D .以上都不对 5、如图2所示,在平面直角坐标系中,菱形ABCD 的顶点A 、B 的坐标分别 是(0, 0),(2, 0),∠α=60°,则顶点C 在第一象限的坐标是:( ) A .(2, 2), B .(3, 3), C .(3, 2), D .(13+, 3 ), 6、一块蓄电池的电压(u )为定值,使用此蓄电池为电源时,电流I(A)与电阻R(Ω)之间的函数关系如图3所示, 如果以此蓄电池为电源的用电器限制电流不得超过10A ,那么此用电器的可变电阻应(注R u I =):( ) A .不小于4.8Ω B .不大于4.8Ω C .不小于14Ω D .不大于14Ω 7、当25--k k 与k k 1 +互为相反数时,k 等于:( ) A .56 B .65 C .23 D .3 2 8、已知Rt △ABC 中,∠C=90°,若a+b=14cm ,c=10cm ,则Rt △ABC 的面积是:( ) A .24cm 2 B .36cm 2 C .48cm 2 D .60cm 2 9、已知菱形ABCD 的周长为40cm ,两条对角线BD :AC=3:4,则两条对角线BD 和AC 的长分别是 ( ) A 、24cm 32cm B 、12cm 16cm C 、6cm 8cm D 、3cm 4cm 10、 如图,O 为正方形ABCD 的中心,BE 平分∠DBC ,交DC 于点E ,延长BC 到点F ,使CF=CE ,连接DF ,交BE 的延长线于点G ,连接OG 、OC ,OC 交BG 于点H .下面四个结论:①△BCE ≌△DCF ;②OG ∥AD ;③BG ⊥DF ;④BH=GH . 其中正确结论有 ( ) (A )1个 (B) 2个 (C)3个 (D)4个 二、填空题:(每小题3分,共30分) 11、若4x-3=1,则x=_____________________。 12、已知()2 4-x +)4)(3(--y y =0,且x 、y 是一个直角三角形的两边,则这个直角三角形第三边的长 为 . 13、如图4所示,在等腰梯形ABCD 中,AC ⊥BD ,AC=6cm ,则等腰梯形ABCD 的 面积为________________cm 。 14、a,b 为实数,且ab=1,设1 1 11,11++ +=+++= b a Q b b a a P , 则P__________Q (填“>”,“<”,“=”) 15、已知反比例函数x k y 42+=的图像在第一、三象限,反比例函数x k y 3 -=,在x >0时,y 随x 的增大而大,则k 的取值范围是_________________________。 16、一个四边形的边长依次为a,b,c,d ,且a 2+b 2+c 2+d 2=2ac+2bd 则这个四边形是___________________________。 17、如图5所示,点P 是正方形ABCD 的对角线BD 上一点, PE ⊥BC 于E ,PF ⊥CD 于F ,连接EF ,给出下列四个结论: ① AP=EF ;②△APD 一定是等腰三角形;③∠PFE =∠BAP ; ④PD=2EC ,其中正确结论的序号是______________________。 18、在△ABC 中,∠C =90°,动点P 从C 点出发沿C →A →B 的 路线以每秒2cm 的速度运动到点B ,则点P 出发___________秒时, △BCP 的面积是△ABC 的面积的一半。 19、某项工程,甲乙两队合做6天可以完成,若甲单独做需x 天完成,乙独做比甲独做多用4天,要求出x 的值,可列出只含x 的方程来解,则列出的方程是 。 20、已知关于x 的方程 12 -x a x —=+的根大于零,则a 的取值范围是 。 三、(本大题9小题,共90分) 21、计算:(1)3234x y y x ? (2)解分式方程: 11322x x x -+=--; 22已知点P (2,2)在反比例函数y= x k (k ≠0)的图象上。 (1)当x=-3 时,求y 的值。 (2)当1<x <3时,求y 的取值范围 y x o 图1 y x C D (A) B O α I(A) R(Ω) O 8 6 A D C B 图4 A B C D P E F 图5 图2
八年级下册测试卷及答案 考生注意:1、本试题共100分,考试时间为90分钟 2、本试题分卷Ⅰ、卷Ⅱ两部分,共6页,25小题 温馨提示:展示自己的机会到啦,你可要冷静思考、沉着应答,祝你成功! 【Ⅰ】选择题部分(40分) 1.亚里士多德说:“国家的命运,有赖于对青年的教育。”从这个意义上理解() ①青少年应自觉履行受教育的义务②青少年应珍惜受教育的权利③国家应保证适龄儿童和少年接受义务教育④国家应该重点发展成人教育 A.①③④B.①②④C.②③④D.①②③ 2.“玉不琢,不成器;人不学,不知义。”《三字经》关于这句话说法错误的是() A.对于一个人的成长,教育起着至关重要的作用 B.说明了学习的重要性 C.我们一定要接受教育 D.一个人如果不学习就不知道义气 3.按义务教育法的规定,接受义务教育的学生应承担的最基本义务 有() ①接受规定年限义务教育的义务②按时入学的义务③履行遵守学校规定、尊敬教师、努力完成规定学习任务的义务④考入重点高中的义务 A.①③④B.①②④C.②③④D.①②③
4.教材引用了英国文学家笛福致女王的信和“阿韦龙野人”故事,主要是促使我们思考,教育对每个人成长来 说() ①是个人的生活准备②是人类文化的一种传统活动和催化活动③是获得独立生活的必要前提④是为走向未来的生活奠基 A.①②③ B.②③④C.①③④ D.①②④ 5.唐朝诗人孟郊“入学始知道,不学非自然”的诗句的内涵 是() ①从学习的作用上劝人勤学②只有刻苦学习,才能为社会贡献力量③受教育具有强制性④刻苦学习是自觉接受教育的表现 A.①②③B.②③④C.①③④D.①②④ 6.右图漫画启示我们() ①形成良好的道德风尚需要全体社会成员的共同努力②要在全社会 大力加强思想道德建设③强调以经济建设为中心,有一些生活陋习不足挂齿④应该大力发展教育,提高全民族的科学文化素质 A.①② B.①②④C.①②③④ D.②④ 7.我国法律规定:公民的合法财产受法律保护。下列属于合法财产的有() ①民工李某把在施工时发现的明朝瓷器作为收藏品②小强上学途中 拾到一个钱包,将之据为己有③单位在过节的时候,发给职工200元奖金④马大妈在市场上买的古玩⑤小娜的存款扣除利息税后获得的利息 A.①②④⑤B.①③④ C.③④⑤D.②③④ 8.国家把保护公民的私有财产写进宪法,是因 为() ①公民的私有财产是国家财产的重要组成部分②私有财产是公民正 常生活的保证③私有财产是公民个人赖以生存和发展的物质基础④ 国家保护公民的私有财产,有助于社会稳定和建设