八年级上册期末考试(华师大版八年级上册数学期末试卷及答案)

　八年级数学是中学数学的基础，所以数学期末考试要倍加重视和做试题。以下是我为你整理的华师大版八年级上册数学期末试卷，希望对大家有帮助!

华师大版八年级上册数学期末试卷

　一、选择题

　1，4的平方根是( )

　A.2　 B.4 C.?2D.?4

　2，下列运算中，结果正确的是( )

　A.a4+a4=a8 B.a3?a2=a5 C.a8?a2=a4 D.(-2a2)3=-6a6

　3，化简：(a+1)2-(a-1)2=()

　A.2　B.4　C.4a　D.2a2+2

　4，矩形、菱形、正方形都具有的性质是()

　A.每一条对角线平分一组对角 B.对角线相等

　C.对角线互相平分　D.对角线互相垂直

　5，如图1所示的图形中，中心对称图形是()

　图1

　6，如图2右侧的四个三角形中，不能由△ABC经过旋转或平移得到的是()

　图2

　7，如图3，已知等腰梯形ABCD中，AD∥BC，?A=110?，则?C=()

　A.90?　B.80?　 C.70?　 D.60?

　8，如图4，在平面四边形ABCD中，CE?AB，E为垂足.如果?A=125?，则?BCE=()

　A.55?　 B.35?　 C.25?　D. 30?

　9，如图5所示，将长为20cm，宽为2cm的长方形白纸条，折成图6所示的图形并在其一面着色，则着色部分的面积为( )

　A.34cm2 B.36cm2　 C.38cm2　 D.40cm2

　10,(芜湖市)如图7，所有的四边形都是正方形，所有的三角形都是直角三角形，其中最大的正方形的边长为10cm，正方形A的边长为6cm、B的边长为5cm、C的边长为5cm，则正方形D的边长为( )

　A. cm B.4cm　 C. cmD.3cm

　二、填空题

　11，化简：5a-2a= .

　12，9的算术平方根是_______.

　13，在数轴上与表示 的点的距离最近的整数点所表示的数是 .

　14，如图8，若□ABCD与□EBCF关于BC所在直线对称，?ABE=90?，则?F =___?

　15，如图9，正方形ABCD的边长为4，MN∥BC分别交AB，CD于点M，N，在MN上任取

　两点P，Q，那么图中阴影部分的面积是 .

　16，如图10，菱形ABCD的对角线的长分别为3和8，P是对角线AC上的任一点(点P不与点A、C重合)，且PE∥BC交AB于E，PF∥CD交AD于F.则阴影部分的面积是_______.

　17，如图11，将矩形纸片ABCD的一角沿EF折叠，使点C落在矩形ABCD的内部C?处，

　若?EFC=35?，则?DEC?= 度.

　18，请你写一个能先提公因式、再运用公式来分解因式的三项式，并写出分解因式的结果 .

　19，为确保信息安全，信息需加密传输，发送方由明文?密文(加密)，接收方由密文?明文(解密).已知加密规则为：明文x，y，z对应密文2x+3y，3x+4y，3z.例如：明文1，2，3对应密文

　8，11，9.当接收方收到密文12，17，27时，则解密得到的明文为 .

　20，如图12，将一块斜边长为12cm，?B=60?的直角三角板ABC，绕点C沿逆时针方向旋转90?至△A?B?C?的位置，再沿CB向右平移，使点B?刚好落在斜边AB上，那么此三角板向右平移的距离是cm.

　三、解答题

　21，计算： .

　22，化简：a(a-2b)-(a-b)2.

　23，先化简，再求值. (a-2b)(a+2b)+ab3?(-ab)，其中a= ，b=-1.

　24，如图13是4?4正方形网格，请在其中选取一个白色的单位正方形并涂黑，使图13中黑色部分是一个中心对称图形.

　25，如图14，在一个10?10的正方形DEFG网格中有一个△ABC.

　(1)在网格中画出△ABC向下平移3个单位得到的△A1B1C1.

　(2)在网格中画出△ABC绕C点逆时针方向旋转90?得到的△A2B2C.

　(3)若以EF所在的直线为x轴，ED所在的直线为y轴建立直角坐标系，写出A1、A2两点的坐标.

　26，给出三个多项式： x2+x-1， x2+3x+1， x2-x，请你选择其中两个进行加法运算，并把结果因式分解.

　27，现有一张矩形纸片ABCD(如图15)，其中AB=4cm，BC=6cm，点E是BC的中点.实施操作：将纸片沿直线AE折叠，使点B落在梯形AECD内，记为点B?.

　(1)请用尺规，在图中作出△AEB?.(保留作图痕迹);

　(2)试求B?、C两点之间的距离.

　28， 2008年，举世瞩目的第29届奥运盛会将在北京举行.奥运五环，环环相扣，象征着全世界人民的大团结.五环图中五个圆环均相等，其中上排三个、下排两个，且上排的三个圆心在同一直线上;五环图是一个轴对称图形.

　(1)请用尺规作图，在图16中补全奥运五环图，心怀奥运.(不写作法，保留作图痕迹)

　(2)五环图中五个圆心围一个等腰梯形.如图17，在等腰梯形ABCD中，AD∥BC.假设BC=4，AD=8，?A=45?，求梯形的面积.

　29，把正方形ABCD绕着点A，按顺时针方向旋转得到正方形AEFG，边FG与BC交于点H

　(如图18).试问线段HG与线段HB相等吗?请先观察猜想，然后再证明你的猜想.

　30，如图19，已知正方形ABCD的边长是2，E是AB的中点，延长BC到点F使CF=AE.

　(1)若把△ADE绕点D旋转一定的角度时，能否与△CDF重合?请说明理由.

　(2)现把△DCF向左平移，使DC与AB重合，得△ABH，AH交ED于点G.试说明AH?ED

　的理由，并求AG的长.

华师大版八年级上册数学期末试卷参考答案

　一、1，C;2，B;3，C;4，C;5，B;6，B;7，C;8，B;9，B;10，A.

　二、11，3a;12，3;13，2;14，45;15，8;16，6;17，70;

　18，答案不唯一.如，2a2+4a+2=2(a+1)2，mx2-4mxy+4my2=m(x-2y)2.等等;19，3、2、9;20，6-2 .

　三、21，原式=2-3+1=0.

　22，原式=a2-2ab-(a2-2ab+b2)=a2-2ab-a2+2ab-b2=-b2.

　23，原式=a2-4b2+(-b2)=a2-5b2，当a= ，b=-1时，原式=( )2-5(-1)2=-3.

　24，如图：

　25，(1)和(2)如图：(3)A1(8，2)、A2(4，9).

　26，答案不惟一.如，选择多项式： x2+x-1， x2+3x+1.作加法运算：( x2+x-1)+( x2+3x+1)=x2+4x=x(x+4).

　27，(1)可以从B、B?关于AE对称来作，如图.

　(2)因为B、B?关于AE对称，所以BBAE，设垂足为F，因为AB=4，BC=6，E是BC的中点，

　所以BE=3，AE=5，BF= ，所以BB?= .因为B?E=BE=CE，所以?BB?C=90?.

　所以由勾股定理，得B?C= = .所以B?、C两点之间的距离为 cm.

　28，(1)如图中的虚线圆即为所作.

　(2)过点B作BE?AD于E.因为BC=4，AD=8，所以由等腰梯形的轴对称性可知

　AE= (AD-BC)=2.在Rt△AEB中，因为?A=45?，所以?ABE=45?，

　即BE=AE=2.所以梯形的面积= ( BC+AD)?BE= (4+8)?2=12.

　29，HG=HB.连结GB.因为四边形ABCD，AEFG都是正方形，所以?ABC=?AGF=90?，

　由题意知AB=AG.所以?AGB=?ABG，所以?HGB=?HBG.所以HG=HB.

　30，(1)在正方形ABCD中，因为AD=DC=2，所以AE=CF=1，又因为?BAD=?DCF=90?，

　所以△ADE与△CDF的形状和大小都相同，所以把△ADE绕点D旋转一定的角度时能与△CDF重合.(2)由(1)可知?CDF=?ADE，因为?ADE+?EDC=90?，所以?CDF+?EDC=90?，

　所以?EDF=90?，又由已知得AH∥DF，?EGH=?EDF=90?，所以AH?ED.因为AE=1，AD=2，所以由勾股定理，得ED= = = ，所以 AE?AD= ED?AG，

　即 ?1?2= AG，所以AG= .

　八年级上册英语的期末考试是对八年级学生一学期的学习效果进行的检测。下面是我为大家带来的关于八年级上册英语的期末试题，供大家参考。

　更多有关八年级期末试卷的热门资讯▼▼点选查阅▼▼

　八年级英语上册期末测试题

　八年级语文上册期末试题及答案

　新人教版八年级英语上册期末测试题

　：第Ⅰ卷选择题 共85分

　Ⅰ. 听力测试20分

　A 听录音，在每组句子中选出一个你所听到的句子，每个句子听一遍。 5分

　1. A. How often do you shop? B. She’s going camping.

　C. I have sore throat.

　2. A. What’s the best radio station ? B. I’m more outgoing than my sister

　C. Can you e to my party?

　3. A. Cut up the bananas . B. Please make the bed every day.

　C. Are you feeling better now?

　4. A. He has shorter hair than Sam. B. What are you doing for vacation?

　C. It has the friendliest service.

　5. A. I have to do my homework. B. Could you please do the dishes?

　C. How was the weather?

　B听录音，从每题A、B、C三幅图画中选出与听到的对话内容相符的一项。每段对话听两遍。5分

　10. A. B. C.

　C在录音中你将听到一段对话及五个问题。请根据对话内容及问题选择正确答案。对话及问题听两遍。5分

　11. A. Mary. B. Mr. White C. Peter.

　12. A. Yes, he can. B. Yes, he is. C. No, he isn’t.

　13. A. Last Sunday B. This weekend C. This Monday

　14. A. At school B. At Huaxing restaurant C. At home

　15. A. By bike B. By bus C. On foot

　D 在录音中你将听到一篇短文及五个问题。请根据短文内容及问题选择正确答案。短文及问题听两遍5分

　16. A. On a farm. B. To the mountains C. To the beach

　17. A. At 4:30 B. At 4:50 C. At 5:00

　18. A. To take a train. B. To travel on foot C. To catch a bus.

　19. A. Yes, he could. B. Yes, he can. C. No, he can’t

　20. A. It could work well. B. There’s something wrong with it.

　C. Nothing is wrong with it.

　Ⅱ. 读音选词 根据句意和所给音标选出正确的单词5分

　21. Would you like a ________ / k?p / of tea?

　A. keep B. camp C. kid D. cup

　22. Jia Hua Movie Theater has the most fortable _________ /si:ts /

　A. sits B. salts C. seats D. seals

　23. My father does Chinese Kong fu /w?ns/ a week.

　A. won B. win C. once D. one

　24. Do exercise every day. It’s good for your /helθ/.

　A. held B. health C. healthy D. hold

　25.What an ____________ /'IntrIstI?/ book it is !

　A. interesting B. exciting C. boring D. relaxing

　Ⅲ. 选择填空 从每题A、B、C、D四个选项中，选出一个最佳答案。30分

　26. — How do you get to school? —By _________ bike.

　A. a B. an C. the D. /

　27. I have to go to the doctor _________ Friday afternoon.

　A. at B. on C. in D. with

　28. —My skirt is blue. —Oh, mine is the same as_________.

　A. you B. your C. yours D. our

　29. Please drink some _________ in the morning. It’s a good habit.

　A. milk B. fruit C. cola D. vegetables

　30. —_________ do you clean your room? — Twice a day.

　A. How much B. How far C. How long D. How often

　31. Many children like junk food, _________ it isn’t healthy.

　A. if B. so C. because D. although

　32. —I’m going away for _________ days. Can you look after my dog for me?

　—Sure.

　A. a few B. a lot C. a bit D. a little

　33. My brother is lovely, he often makes me _________ .

　A. laugh B. to laugh C. laughing D. laughs

　34. —I’m _________.

　—Have some water, please.

　A. hungry B. tired C. thirsty D. angry

　35. —Could you please do the dishes, Jack?

　—_________. I have to do my homework.

　A. Yes, please B. Sure, I’d love to C. Sorry, I can’t D. No, I don’t

　36. —I have a toothache. —You should go to see a _________.

　A. dentist B. tourist C. engineer D. pilot

　37. —When were you born? —I _________ born in 1998.

　A. was B. were C. am D. be

　38. —This skirt is a little *** aller for me, can you show me ________one ?

　— Sure, this one is larger.

　A. other B. others C. another D. the other

　39.—Is that Cathy? — No, that’s Kate. She has _________ hair than Cathy.

　A. long B. longer C. longest D. the longest

　40. I don’t feel well now, so I _________ exercise too much.

　A. may B. must C. should D. shouldn’t

　41. Don’t forget _________ your bed every day. It can help keep healthy.

　A.clean B. cleaning C. to clean D. cleaned

　42. Gina is a good student. She is _________ late for school.

　A. always B. never C. usually D. often

　43. —It is time for the weather report. Please _________ the TV

　—OK.

　A. turn on B. turn up C. turn down D. turn off

　44. Which sign means “Save water”?

　A. B. C. D.

　45. —Why do you like to go to Daming Lake ?

　—Because it’s one of _________ parks in Jinan .

　A. beautiful B. more beautiful C. most beautiful D. the most beautiful

　46. —_________? —Er… I have a stomachache.

　A. How are you? B. What’s the matter?

　C. Can you e? D. How about you?

　47. —What time do they _________ from school?

　—At about 5:00 pm..

　A. get to B. get on C. get back D. get up

　48. —Were there any seals in the zoo? —_________. We went to watch them last year.

　A. No, there weren't B. Yes, there were. C. Yes, there was D. No, there wasn’t

　49. This winter is too cold. Let’s move _________ .

　A. warm somewhere B. somewhere warm

　C. warm anywhere D. nothing warm

　50. Tom and Tim are twins. They _________ clever and good students.

　A. are both B. both are C. have both D. both have

　51. —Are you going hiking tomorrow?

　—Well, it _________ the weather.

　A. looks B. looks at C. depends on D. depends

　52. —Here is some trash. Could you please _________ ? —Yes, sure.

　A take out them B take them out C take out it D take it out

　53. —I can’t go to your party. My grandma is ill.

　—_________.

　A. I’m sorry to hear that B. Don’t worry

　C. She has to stay in bed. D. That is all right.

　54. I won’t go to bed until I finish _________ the floor.

　A. sweep B. sweeps C. sweeping D. swept

　55. —We’re going to Hainan this winter holiday. —_________.

　A. You’re wele B. Have a good time

　C. That’s too bad D. I’m sorry to hear that

　Ⅳ.完形填空 阅读下面短文，从每题A、B、C、D四个选项中，选出一个能填入文章中相应空白处的最佳答案。10分

　Dear Angela,

　I have some exciting news to tell you. My cousin Judy is ing to 56 us this weekend. She 57 at an aquarium and she is going to stay with us for two days. Would you like to 58 us? Because you want to be a marine biologist海洋生物学家, Judy can 59 you many stories about sharks and other sea life. I’m sure you can be 60 in them.

　61 you can join us, I will pick you up会捎你来 on Friday afternoon.

　We are planning a lot for this weekend. On Friday evening, we’re going to have a big dinner and the 62 family could play games. On Saturday morning, Mom will have a party 63 my cousin. On Sunday afternoon, we can say 64 to my cousin and then went home together.

　Please e with us, you can enjoy meeting Judy, 65 she can enjoy meeting you too. Please write back soon.

　Your friend,

　Elizabeth

　56. A. invite B. visit C. call D. help

　57. A. studies B. plays C. works D. arrives

　58. A. go B. e C. leave D. join

　59. A. speak B. tell C. say D. ask

　60. A.happy B. relaxed C. sad D. interested

　61. A.If B. When C. Before D. After

　62. A. whole B. all C. both D. other

　63. A. to B. with C. for D. on

　64. A. hello B. sorry C. goodbye D.thanks

　65. A.but B. and C. or D. so

　Ⅴ.补全对话 阅读对话，从每题A、B、C、D四个选项中, 选出一个最佳答案完成对话。5分

　A: Hello, may I speak to Ann, please?

　B: Hello. 66 . Is that Mary?

　A: Yes. I hear you weren't well yesterday. 67

　B: I had a bad cold and had a fever.

　A: 68

　B: Much better. Thanks. Maybe I can go to school tomorrow.

　A: Oh, I think you should stay in bed and have a rest.

　B: Maybe you're right. But I’m worried about my lesson.

　A: 69 . I can help you.

　B: It's very kind of you. 70

　A: You’re wele.

　66. A. That sounds boring. B. It's a blue one.

　C. This is Ann speaking. D. Is this Ann?

　67. A. What was the matter? B. I don't think so.

　C. I'd like to go to school. D. I should drink hot water.

　68. A. See you tomorrow B. I need to get there by car.

　C. Do you feel better now? D. Open the door.

　69. A. You must go now. B. How do you do?

　C. What color is it? D. Don't worry

　70. A. I don't know. B. Thanks a lot.

　C. Here you are. D. Where's my homework?

　>>>下一页更多精彩“”