华师大版数学七年级下期末能力测试题.doc

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1、华师七下期末能力测试题一、填空题(每小题3分,共30分)ABCD图11、五边形中,前四个角的比为1234,第五个角比最小角多100,则五边形的五个内角分别为_.2、本学期,我们做过“抢30”的游戏,如果将游戏规则中“不可以连说三个数,谁先抢到30谁就获胜”,改为“每次可以连说三个数,谁先抢到33谁就获胜”,那么采取适当策略,其结果_者胜.3、如图1,在ABC,A=36,D为AC边上的一点,AD=BD=BC,则图中的等腰三角形共有_个.4、已知ABC的边长a、b、c满足(1),(2)c为偶数,则c的值为_.5、已知不等式的解集是,则a的值是_.6、方程中,有一组解x与y互为相反数,则.7、请列举

2、一件可能事件、不可能事件、必然事件:_ _.8、一个三角形有两条边相等,周长为18cm,三角形的一边长为4cm,则其他两边长分别为_.9、将一筐橘子分给若干个小朋友,如果每人分4个橘子,剩下9个;如果每人分6个橘子,则最后一个小朋友分得的橘子将少于3个,由以上可知共有_个小朋友分_个橘子.10、根据x的2倍与5的和比x的小10,可列方程为_.二、选择题(每小题3分,共30分)11、正五边形的对称轴共有( )A2条B4条C5条D10条12、有一个两位数,它的十位数字与个位数字之和为5,则符合条件的数有( )个A4B5C6D无数13、为了搞活经济,某商场将一种商品A按标价9折出售,仍获利润10%,

3、若商品A标价为33元,那么商品进货价为( )A31元B30.2元C29.7元D27元14、已知,若,则x与y的关系为( )ABCD不能确定ABCFED图215、一个多边形除了一个内角外,其余内角之和为257,则这一内角等于( )A90B105C130D12016、如图2,已知:在ABC中,AB=AC,D是BC边上任意一点,DFAC于点F,E在AB边上,EDBC于D,AED=155,则EDF等于( )A50B65C70D75图317、有一种足球是由32块黑白相间的牛皮缝制而成的(如图3),黑皮可看作正五边形,白皮可看作正六边形,设白皮有x块,则黑皮有块,每块白皮有六条边,共6x边,因每块白皮有三

4、条边和黑皮连在一起,故黑皮有3x条边.要求出白皮、黑皮的块数,列出的方程正确的是( )ABCDBACDEB图418、如图4,将正方形ABCD的一角折叠,折痕为AE,BAD比BAE大48,设BAE和BAD的度数分别为x、y,那么x、y所适合的一个方程组是( )ABCD19、一个两位数的十位数字与个位数字之和是7,如果把这个两位数加上45,那么恰好成为个位数字与十位数字对调后的两位数,则这个两位数是( )A16B25C38D4920、等腰三角形的腰长是4cm,则它的底边长不可能是( )A1cmB3cmC6cmD9cm三、解答题(每小题10分,共60分)21、如图5,在ABC中,BO平分ABC,CO

5、平分ACB,DE过O且平行于BC,已知ADE的周长为10cm,BC的长为5cm,求ABC的周长.ABCEDO图522、儿童公园的门票价格规定如下表:购票人数150人51100人100人以上每人门票价13元11元9元某校七(1)、(2)两个班共104人去游儿童公园,其中(1)班人数较少,不到50人,(2)班人数较多,经估算,如果两班都以班为单位分别购票,则一共应付1240元,问:(1)两班名有多少学生?(2)如果两联合起来,作为一个团体购票,可以省多少钱?23、已知是方程组的解,求k和m的值.24、已知一个等腰三角形的三边长分别为x、2x、5x-3,求这个三角形的周长.25、某校七(2)班40名

6、同学为“希望工程”捐款,共捐款100元,捐款情况如表:捐款(元)1234人数(人)67表格中捐款2元和3元的人数不小心被墨水污染已看不清楚,你有办法弄清这两个被污染的两个数字吗?说明你的理由.26、某商场准备进一批两种不同型号的衣服,已知购进A种型号衣服9件,B种型号衣服10件,则共需1810元;若购进A种型号衣服12件,B种型号衣服8件,共需1880元;已知销售一件A型号衣服可获利18元,销售一件B型号衣服可获利30元,要使在这次销售中获利不少于699元,且A型号衣服不多于28件.(1)求A、B型号衣服进价各是多少元?(2)若已知购进A型号衣服是B型号衣服的2倍还多4件,则商店在这次进货中可

7、有几种方案?并简述购货方案. 华师七下期末能力测试题参考答案一、填空题1、40,80,120,160,140 2、先报 3、3 4、45、答案不惟一 6、2 7、答案不惟一 8、7,7 9、180010、二、选择题11、C 12、B 13、D 14、B 15、C 16、B 17、B18、C 19、A 20、D三、解答题21、15cm22、(1)班有48人,(2)班有56人,合买可省304元23、解:把代入方程组得,解得:k=-1,m=3.24、显然,又若,则不合题意.所以:,解得:,所以三角形周长为.25、解:设捐款2元的有x人,捐款3元的有y人,则 解之得:答:捐款2元的有3人,捐款3元的有

8、20人.26、(1)设A种型号的衣服每件x元,B种型号的衣服y元,则:,解之得(2)设B型号衣服购进m件,则A型号衣服购进件,可得:m为正整数,m=10、11、12,2m+4=24、26、28.答:有三种进货方案:(1) B型号衣服购买10件,A型号衣服购进24件;(2) B型号衣服购买11件,A型号衣服购进26件;(3) B型号衣服购买12件,A型号衣服购进28件.华东师大版数学七年级下期末考试卷一、细心填一填(本大题共10小题,13空,每空2分,共26分)1已知,则x=_.2已知x=1是方程2ax3=a(23x)的解,则a=_.3已知关于x的方程4x+2m=3x+1和方程3x+2m=6x+

9、1的解相同,则m的值为_.ACBE第5题4在ABC中,若已知A=60,再添加一个条件_,就能使ABC是等边三角形(题中横线上只需写出一个条件即可). 5如图,ABC的边AC的垂直平分线交边AB于点E,若ABC与BCE的周长分别为22和14,则AC的长为_.6(1)等腰三角形的顶角是110,则它的另外两个内角的度数分别为_;(2)已知等腰三角形一边的长是3,另有一边的长是7,则这个三角形的周长是_.7八边形的内角和为_,外角和为_.8一个盒子里面放着搅匀了的4个红球、3个白球和2个黄球,这些小球除颜色不同外,其余均完全相同. 给出下列事件:随机地从盒子中取出一个小球,是黄色的;随机地从盒子中取出

10、6个球,则其中一定有红色的球. 其中的“随机事件”是_,“必然事件”是_.(填写序号即可)9某校初一(2)班的甲、乙、丙三位同学去A、B两超市,对他们近几年的销售情况进行调查,调查后进行了如下的交流:甲说:A超市销售额5月份比4月份增加12%;乙说:B超市销售额5月份比4月份增加10%;丙说:A、B两超市4月份的销售额共为120万元,5月份的销售额共为150万元.假如A、B两超市4月份的销售额分别为x(万元)和y(万元),那么根据他们的对话,可列出正确的方程组为:_.第10题10小明用火柴棒按如图的方式搭一排三角形,搭一个三角形需3根火柴棒,搭两个三角形需5根火柴棒,搭3个三角形需7根火柴棒,

11、照这样的规律搭下去,小明一共用去了71根火柴棒,那么他共搭了_个三角形.二、精心选一选(本大题共10小题,每题3分,共30分)11二元一次方程x2y=8 ( )A有一个解且只有一个解 B无解C有无数多个解 D有两个解并且只有两个解12已知2ay+5b3x与4a2xb24y是同类项,那么x、y的值是 ( )Ax=1,y=2 Bx=2,y=1 Cx=0,y= Dx=7,y=013以下列长度的三条线段为边,不能组成三角形的是 ( )A3,2,5 B3,12,13 C4,4,5 D6,8,1014给出下面四个说法:三角形三个内角的和为360;三角形一个外角大于它的任何一个内角;三角形一个外角等于它任意

12、两个内角的和;三角形的外角和等于360. 其中正确说法的个数为 ( )A0 B1 C2 D315下列四个图形中,不是轴对称图形的是 ( )A.B.C.D.16一个正多边形的每一个内角都等于120,那么这个正多边形是 ( )A正方形 B正五边形 C正六边形 D正八边形17某人到瓷砖商店去购买一种多边形形状的瓷砖,用来铺设无缝地板,则他购买的瓷砖形状不能是 ( )A正三角形 B长方形 C正八边形 D正六边形18下列调查中,适合用普查的是 ( )A了解我市居民的环保意识 B了解我们班级每个同学每天做家庭作业的时间C了解某电视剧的收视率 D考察某工厂生产的一批手表的防水性能19下列说法中正确的是 (

13、)A一个事件发生的机会是99.99%,所以我们说这个事件必然会发生B抛一枚硬币,出现正面朝上的机会是,所以连续抛2次,则必定有一次正面朝上C甲、乙两人掷一枚正六面体骰子做游戏,规则是:出现1点时甲赢,出现2点时乙赢,出现其它点数时大家不分输赢,这个游戏对两人来说是公平的D在牌面是19的九张牌中随机地抽出一张,抽到牌面是奇数和偶数的机会是一样的20如图,ABC中,AB=AC,A=50,P是ABC内的一点,且PBC=PCA,则BPC等于 ( )A115 B100 C130 D140第20题三、认真答一答21(本题满分8分)解方程或方程组:(1) (2)22(本题满分6分)某机关有A、B、C三个部门

14、,三个部门的公务员人数依次有84人、56人、60人. 如果每个部门按相同比例裁员,使这个机关最后留下的人数为150人,那么B部门最后留下的公务员是多少人?23(本题满分6分)已知,如图,O是ABC高AD与BE的交点,C=50,求AOB的度数. BACEODACBD24(本题满分6分)如图,ABC中,AB=AC,且AC上的中线BD把这个三角形的周长分成了12cm和6cm的两部分,求这个三角形的腰长和底边的长. 25(本题满分8分)某校在初一年级200名男生中随机抽取了50名男生进行200m跑测试,测试的情况如下:成绩(单位:秒)2829303132333435人数2148141722 (1)试计

15、算这50名同学200m跑成绩的平均数、众数和中位数;(2)若以这50名同学200m跑的成绩作为依据来确定初一男生200m跑的及格线,那么,你认为初一男生200m跑的及格成绩定为多少秒较为合适?26某商场计划从某厂生产的甲、乙、丙三种型号的电视机中选购50台. 已知这三种型号电视机的出厂价和零售价如下表所示:型 号甲乙丙出厂价(单位:元/台)150020002500零售价(单位:元/台)165023002900若商场恰好用9万元钱采购了其中两种不同型号的电视机50台,那么商场按怎样的方案采购,能使商场购进的这50台电视机销完后能获利最大?华东师大版初一数学第二学期期末考试 一、细心填一填(本大题

16、共10小题,13空,每空2分,共26分)1. 3 2. 1 3. 4. AB=AC等(答案不唯一) 5. 8 6.(1)35,35;(2)177. 1080,360 8. , 9. 10. 35二、精心选一选(本大题共10小题,每题3分,共30分)11.C 12.B 13.A 14.B 15.A 16.C 17.C 18.B 19.C 20.A三、认真答一答(本大题共5小题,满分34分)21.(本题满分8分)(1)2(2x+1)-(x-1)=12,(1分) (2)2,得4x2y=16,(1分)4x+2-x+1=12,(2分) +,得7x=21,3x=9,(3分) x=3.(2分)x=3.(4分

17、) 把x=3代入,得y=2.(3分) (4分)22.设每个部门裁员的百分比为x,则84(1x)+56(1x)+60(1x)=150,(3分)解得x=25%,(4分) 56(125%)=42.(5分)答:B部门最后留下的公务员是42人. (6分)23.ADBC,BEAC,ODC=OEC=90. (2分)DOE+ODC+C+OEC=360,C=50,(3分)DOE=130. (4分)AOB=DOE,(5分) AOB=130.(6分)24.设AD=CD=x,则AB=AC=2x,设BC=y,则或(2分)解得或(4分)经检验不合题意,舍去,符合题意. (5分)答:这个三角形的腰长为8cm,底边长为2cm

18、 (6分)25.(1)平均数是32,众数是33,中位数是32.(每个结论2分,共6分)(2)33秒.(8分)四、动脑想一想(本大题只有1小题,满分10分.)26.(1)若采购甲型电视机x台,乙型电视机 (50x) 台,则1500x+2000(50x)=90000,(2分)x=20,50x=30,这时,商场购进的这50台电视机销完后能获利20150+30300=12000元.(4分)(2)若采购甲型电视机y台,丙型电视机(50y)台,则1500y+2500(50y)=90000,y=35,50y=15,这时,商场购进的这50台电视机销完后能获利35150+15400=11250元. (7分)(3

19、)9万元钱不够单独购买乙型电视机50台,9万元钱不可能购买50台乙型和丙型的电视机. (9分)1200011250,商场按购进20台甲型电视机,30台乙型电视机的方案采购,能使商场购进的这50台电视机销完后能获利最大.(10分)人教版七年级下册英语期末试卷第二部分 笔试(80)V单项选择。(10)21. Please late for school. A. isnt B. arent C. dont be D. not be22. Bob comes from .He speaks . A. Japan , English B. America , Chinese C. French , Fr

20、ance D. Australia, English23. I want a new house a small garden. A. of B. with C. have D. in24. They at home last weekend. A. stay B. stayed C. was stayed D. stays25. What about a party? Good idea. A. have B. to have C. having D. has26. Mary is girl, but she knows a lot about science. A. a eight-yea

21、r-old B. eight-year-old C. eight years old D. an eight-year-old27. the weather like in Hangzhou? Its cloudy. A. Hows B. What C. How D. Whats28. There some milk in the glass. A. is B. are C. has D. have29. What does your brother do? . A. He is Mr Green B. He is from Japan C. He often plays the piano

22、D. He is a bank clerk30. Would you like soccer with us ?Sure. I like soccer very much. A. to play, playing B. playing, play C. to play, play D. playing, playingVI. 完形填空(每小题1分,共10分)阅读短文,从A、B、C、D四个选项中,迁出可以填入空白处的正确答案。Peter was a good boy in the past. He studied hard at school. But 31 his parents divorc

23、ed(离婚), many people thought he wasnt a good boy any more.Peter began to arrive 32 for school. His teacher told him to get to school on time, but he 33 did as the teacher said. Sometimes when he got to school, the first 34 was over. In class, he didnt 35 the teacher;he slept. He didnt like talking to

24、 others any more. He often 36 with other boys after school. Once he had to be in hospital for a week, but he didnt stop. His 37 couldnt stand him. They told Peter he must leave school if he broke(违反) the school 38 again.On weekends Peter stayed at home and 39 all day playing computer games. When he

25、felt hungry, he only ate some snacks(零食). Nobody 40 for him. He lived with his father. But his father wasnt often at home.Who can help Peter?( )31. A. before B. after C. if D. when( )32. A. late B. later C. early D. soon( )33. A. really B. often C. never D. always( )34. A. day B. class C. show D. ti

26、me( )35. A. agree with B. wait for C look for D. listen to( )36. A. played B. talked C. fought D. ate( )37. A. teachers B. parents C. friends D. classmates( )38. A. exams B. rules C. life D. culture( )39. A. wanted B. spent C. hoped D. worked( )40. A. reported B. cleaned C. washed D. cookedVII.阅读理解(

27、每小题2分,共30分) A根据短文内容,选择正确答案。My cousin Bill likes going to the beach on Sunday. Last Sunday it was sunny, he went there with his brother. They got there at 9:00.There were lots of people there on vacation.Bill and his brother sat down and began to relax.Soon Bill found there were olts of empty(空的) wat

28、er bottles on the beach. He also saw some paper bags on the beach. That made Bill sad. He and his brother began to work. To clean the beach. They worked hard. About two hours late ,the beach was clean again. At last they put up a sign, saying, “No Littering(乱扔)” on the beach. They wanted people to k

29、eep the beach clean. After that, they were very hungry. So they went to a restaurant nearby to have lunch. They had two large bowls of beef noodles there, and then went home.( )41. Last Sunday the weather was . A. rainy B. cloudy C. sunny D. cold( )42. Bill saw many on the beach. A. money B. bottles

30、 C. books D. signs( )43. Bill and his brother spent about . A. one hour B. two ours C. three hours D. four hours( )44. The underlined phrases “put up” means “ ” in Chinese. A.推荐 B. 提供 C. 提出 D. 贴出( )45. Which of the following is TRUE(真的)? A. Bill is very lazy B. Bill stayed on the beach all day. C. T

31、he restaurant is near the beach. D. Bills brother had a small bowl of noodles for lunch.B根据短文内容,判断正(T)误(F)Old Henry lived on a clean street in Green City Every weekend, Alan and his friends played soccer in the street. The children were too noisy (吵闹的)for the old man to have a good rest.One day, Old

32、 Henry told the children that he would give them 10 douars each weekend to watch them play soccer in the street. He said, “I am so glad when seeing you play soccer happily”.Alan and his friends were surprised to hear Old Henrys words.The first weekend after that, the boys went to play soccer near th

33、e old mans house, and went awaly happily with 10 dollars.The second weekend they also got 10 douars. The third weekend, Old Henry said he spent his monet on his grandsons school things. So he only gave. The children 4 dollars. The next weekend, Old Henry said he had a cold and he spent his money on

34、medicine(药). He only gave them I dollay. After that, Alan and his friends didnt play soccer in that street any more.( )46. Alan likes playing soccer.( )47. Alan and his friends cleaned the street every weekend.( )48. Old Henrys grandson is a student.( )49. Old Henry gave 26 dollars in all (总共) to th

35、e children.( )50. In fact, Old Henry didnt want the children to play soccer near his house. C根据短文内容,完成下列任务。Hello, everyone! Its nine oclock.Welcome to GMTVs Music & Stories Show. Im the host , Wang Chunxue. We all know that music plays an important(重要的) part in everyones life. It can make people hap

36、py or sad. Babies and young children would like others to sing to them. When they are a little older, they like to sing the songs the have heard. After children go to school, their world of music grows (扩大). In the middle grades students take music lessons. When they go to high schools, they are int

37、erested in pop music. 更多免费资源下载绿色圃中小学教育网Http:/wWw.lSpjy.cOm 课件|教案|试卷|无需注册Well, in todays program, well listen to the Peoples Musician, Xian Xinghais songs . Do you know Xian Xinghai? Hes from Macao, China. He brought western and Chinese music together. Hes famous (出名的)for the song The yellow River. H

38、e wrote this song in 1939 in only six days. OK, lets listen to the wonderful song The Yellow River.任务一:翻译句子。51. 将文中划线部分翻译成汉语。 任务二:选择填空。( )52. What does Wang Chunxue do? A. A musician. B. A host. C. A writer. D. A teacher.任务三:回答问题。53. Whats the time now ? 54. What are the students interested in when they go to high schools? 55. How long did Xian Xinghai spend in writing the song The Yellow River? VII. 词汇(10)A)根据句意及道字母提示,补全所缺单词。56. Please dont talk l .the kids are sleeping.57. It is r outside . Take an umbreua with you.58. My uncle w

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