(完整版)华东师大版八年级上期数学期末试题

1、relationship, establishe d equivalent relationship 14, and subject: application problem (4)-scores and perce ntage applicationproblem review content overview answers scores, and per centage appli cation problem of key is: according to meaning , (1) determine standard volume (units "1") (2)

2、 find associate "volume rate corresponds to" relationship, Then in-li ne soluti on. Category fraction multiplication word problem score Division applications engineeringproblem problem XV, a subject : review of the measurementof the amount of capacity, measurement and unit s of measuremnt

3、of common units of measurement and their significance in rate 1, currency, length, area, volume, unit size, volume, weight and rate. (Omitted) 2, commonly used time units and their relatibetwee n characteristionshi ps. (Slightly) with a measurement units Zhijian of of poly 1, aume 1, sizend of metho

4、d 2, andpoly method 3, andof method andpoly methodof relationship measurement distance of method 1, and toolmeasurement 2, and estimates16, and subject: geometrypreliminary knowledge (1)-line and angle review content line, and segme nt, and Ray, and vertical, andparallel, and angle angleof classific

5、ation (slightly) 17, and subject: geometry preliminary knowledge (2)-pl ane graphics review content triangle, and edgesshaped, a nd round, and fan axisymmetric graphics perimeter and area combination graphicsof area subject :Preliminary knowledge (3)-review of solidcontent category 1-d sha pes aredi

6、vide d into: cylinder and cone 2, column is divided into: cuboid,square 3, conecone of the features of cuboids and cubes relationshipcs of cir cular cone is slightly soli d surface area and vol2, table . 和八年级上期数学期末试题（华东师大版）时间 120 分钟，总分 150 分 姓名一、选择题：（每小题 3 分，共 36 分。）1下列说法中正确的是（）（ A） 4 是 8 的算术平方根（ B）

7、 16 的平方根是4（ C）6 是 6 的平方根（ D）a 没有平方根2、下列说法中错误的是（）A、四个角相等的四边形是矩形B、四条边相等的四边形是正方形C、对角线相等的菱形是正方形D、对角线互相垂直的矩形是正方形3、如图（ 1）在菱形 ABCD中， AE BC于点 E，AF CD于点 F，且 E、F 分别为 BC、CD的中点，（如图）则 EAF等于（）A、 75°B、 45°C、 60°D、30°图（ 1）4、 36 的平方根是（）（A） 6（ B）±6（ C）6（ D）65一个数的平方根是它本身，则这个数的立方根是（）（A） 1（B） 0（

8、C） -1（D）1，-1 或 06、下列各式中计算错误的是（）A、 (a+b) 2=a2+b2+2abB、 (a b) 2=a2+b2 2ab222 2ab D22C、 ( a+b) =a +b、 (b a) =(a b)7、如果4x2 Mxy+9y2 是一个完全平方式，则M的值是（）A、 72B、 36C、 12D 、±128、如图（ 2）有四个图案，它们绕中心旋转一定的角度后，都能和原来的图案相互重合，其中有一个图案与其余三个图案旋转的角度不同，它是()图（ 2）relationship, establishe d equivalent relationship 14, and

9、subject: application problem (4)-scores and perce ntage applicationproblem review content overview answers scores, and per centage appli cation problem of key is: according to meaning , (1) determine standard volume (units "1") (2) find associate "volume rate corresponds to" rela

10、tionship, Then in-li ne soluti on. Category fraction multiplication word problem score Division applications engineeringproblem problem XV, a subject : review of the measurementof the amount of capacity, measurement and unit s of measurement of common units of measurement and their significance in r

11、ate 1, currency, length, area, volume, unit size, volume, weight and rate. (Omitted) 2, commonly used time units and their relatibetwee n characteristionshi ps. (Slightly) with a measurement units Zhijian of of poly 1, aume 1, sizend of method 2, andpoly method 3, andof method andpoly methodof relat

12、ionship measurement distance of method 1, and t oolmeasurement 2, and estimates16, and subject: geometrypreliminary knowledge (1)-line and angle review content line, and segme nt, and Ray, and vertical, andparallel, and angle angleof classification (slightly) 17, and subject: geometry preliminary kn

13、owledge (2)-pl ane graphics review content triangle, and edgesshaped, a nd round, and fan axisymmetric graphics perimeter and area combination graphicsof area subject :Preliminary knowledge (3)-review of solidcontent category 1-d sha pes aredivide d into: cylinder and cone 2, column is divided into:

14、 cuboid,square 3, conecone of the features of cuboids and cubes relationshipcs of cir cular cone is slightly soli d surface area and vol2, table . 和9、如图（ 3）, 一圆柱高8cm,底面半径2cm,一只蚂蚁从点A 爬到点 B 处吃食 , 要爬行的最短路程(取 3)是( )A.20cmB.10cmC.14cmD.无法确定.B图（ 3）A10、如图 C是线段 BD上一点，分别以 BC、CD为边在 BD同侧作等边ABC和等边 CDE,AD交 CE于 F

15、， BE交 AC于 G，则图中可通过旋转而相互得到的三角形对数有()A1对B2对C3对D4对11、如图 4，将图（ 1）中的正方形图案绕中心旋转180°后，得到的图案是（）（ 1）ABCD图412、分解因式4x2y+2xy 2 xy的结果是（）A、 4(x 2+2xy2 xy)B、xy(4x2 y1)C、xy(4 x2 y1)D、xy(4x 2y)二、填空题（每小题3 分，共30 分）1、已知直角三角形的两边长分别为3、 4，则第三边的长为_.2、已知 a+b=5， ab=6，则 a2+b2=_， (a b) 2=_3、如图 5 是由边长为a 和 b 的两个正方形组成，通过用不同的方

16、法，计算下图中阴影部分的面积，可以验证的一个公式是.aDFCabEabbAB图 5图 64、如图 6，ABCD中，点 E 在边 AD上，以 BE为折痕，将 ABE向上翻折，点A 正好落在 CD上的点 F，若 FDE的周长为 8， FCB的周长为 22，则 FC的长为 . 5、如图 11-1 所示， P 是等边 ABC内一点， BMC是由 BPA旋转所得，则relationship, establishe d equivalent relationship 14, and subject: applicationproblem (4)-scores andpercentage applicati

17、 onprobl measurement 2, aem review content ov nd estimateserview answers score 16, and subje ct: geometrys, and per centage a preliminary knowleppli cation problem of key is: accor ding to mea dge (1)-li ne and angl e review content li ne, aning , (1) determine standard vol nd segme nt, and Ray, and

18、 vertical, aume (units "1") (2) find associate "volume rate corresponds to" relationship, Tndparallel, and angle angleof classification (slightly) 17, and subjehen in-lict: geometry prelimine solution. Category fraction multiplication wornary knowledge (2)-plane graphics review c

19、onted problem score Divint triangle, and edgession applicati shaped, aons e ngineering nd r ound, aproblem problem XV, a subjectnd fan axisymmetric graphics perimeter a: review of the measurementnd area combiof the amount ofcapacity, measuremenation graphicsof area subject :Preliminary knowlent andu

20、nit s of measureme dge (3)-review of solidnt of common units of measuremeconte nt category 1-dsha pes arent and their sig nificance i divide d into: cylinder an rate 1, currend cone 2, column incy, length, area, vol ume, unit size , volume, w eight and rate. (Omitted) 2, commonly used time units and

21、 their relati s divided int o: cuboid, square 3, cone cone of the f eatures of cuboids a nd cubes relati onshipbetwee n characteristionships. (Slightly) with a measurement units Zhijian of of poly 1, acs of circularcone is slightly solid surface area and volume 1, sizend of method 2, a 2, table . 和n

22、dpoly method 3, andof method andpoly methodof relationship measurement distance of method 1, and tool PBM _6、如下图，梯形ABCD中， AB CD，AD=BC=DC， A=45°， DE AB于 E，且 DE=1，那么梯形 ABCD的周长为 _。面积为 _。7、如果 a 的平方根是a ，则 a _；如果 a 的算术平方根是 a ，则 a_228、 a b_, ab_9、如图 9-1 ，直角三角形三边上的半圆面积之间关系为_ _10、“肥皂泡厚度约为0.m”用科学记数法表示此数为

23、_ ；三、计算题（每小题4 分，共 20 分。）1、38 332218412、2 10233 103223、(a+2)(a 2)(a 2+4)(a 4+16)4、(x 2+2x+3) 2 (x 2+2x+2) 25、 ab 5ba 3四、分解因式（每小题4 分，其 16 分。）1、 24a3m-18a 2m22、 169(a-b) 2-196(a+b) 2relationship, establishe d equivalent relationship 14, and subject: application problem (4)-scores and perce ntage applic

24、ationproblem review content overview answers scores, and per centage appli cation problem of key is: according to meaning , (1) determine standard volume (units "1") (2) find associate "volume rate corresponds to" relationship, Then in-li ne soluti on. Category fraction multiplic

25、ation word problem score Division applications engineeringproblem problem XV, a subject : review of the measurementof the amount of capacity, measurement and unit s of measurement of common units of measurement and their significance in rate 1, currency, length, area, volume, unit size, volume, weig

26、ht and rate. (Omitted) 2, commonly used time units and their relatibetwee n characteristionshi ps. (Slightly) with a measurement units Zhijian of of poly 1, aume 1, sizend of method 2, andpoly method 3, andof method andpoly methodof relationship measurement distance of method 1, and t oolmeasurement

27、 2, and estimates16, and subject: geometrypreliminary knowledge (1)-line and angle review content line, and segme nt, and Ray, and vertical, andparallel, and angle angleof classification (slightly) 17, and subject: geometry preliminary knowledge (2)-pl ane graphics review content triangle, and edges

28、shaped, a nd round, and fan axisymmetric graphics perimeter and area combination graphicsof area subject :Preliminary knowledge (3)-review of solidcontent category 1-d sha pes aredivide d into: cylinder and cone 2, column is divided into: cuboid,square 3, conecone of the features of cuboids and cube

29、s relationshipcs of cir cular cone is slightly soli d surface area and vol2, table . 和3、 m28m204、 (m+n) 2+4(m+n)+4m 2五、解答题（每小题5 分，共 25 分。）1、已知： | x + y + 1| +| xy - 3 | = 0求代数式xy 3 + x 3y 的值。2、 a、 b 在数轴上的位置如图所示，化简：( a1) 2(b1) 2( ab) 23、如图，矩形 ABCD中， AB=2cm， BD=4cm， AE BD ， E 是垂足，求 AC 的长和 ADB、 BAE的度数。

30、4、如图梯形ABCD 中， AD BC，AB=DC ， D1200，对角线AC 平分 BCD ，（ 1）若AE DC ，试说明四边形AECD 的形状，并说明理由；（ 2）若 AE DC ，梯形周长为20cm，求 BC 的长。ADBECrelationship, establishe d equivalent relationship 14, and subject: applicationproblem (4)-scores andpercentage applicationproblem review content overview answers scores, and percenta

31、ge application problem of key is: according to meaning, (1) determinestandard volume (units "1") (2) find associate "volume rate corresponds to" relationship, Then in-li ne solution. Category fraction multiplication word problem score Division applications e ngineeringproblem pro

32、blem XV, a subject: review of the measurementof the amount ofcapacity, measurement andunits of measurement of common units of measurement and their significance in rate 1, currency, length, area, volume, unit size, volume, weight and rate. (Omitted) 2, commonly used time units and their relationship

33、s. (Slightly) with a measurement units Zhijian of of poly 1, and of method 2, andpoly method 3, andof method andpoly methodof relationship measurement distance of method 1, and toolmeasurement 2, and estimates16, and subject: geometrypreliminary knowledge (1)-line and angle review content line, and

34、segment, and Ray, and vertical, andparallel, and angle angleof classification (slightly) 17, and subject: geometry preliminary knowledge (2)-plane graphics review content triangle, and edgesshaped, and round, and fan axisymmetric graphics perimeter and area combination graphicsof area subject :Preli

35、minary knowledge (3)-review of solidconte nt category 1-dsha pes aredivided into: cylinder and cone 2, column is divided into: cuboid,square 3, conecone of the features of cuboids andcubes relationshipbetween characteristics of circularcone is slightly solid surface area and volume 1, size2,table .和

36、5、已知如图，折叠矩形的纸片 ABCD ，先折痕（对角线） DB ，再过点 D 折叠，使 AD 落在折痕 BD 上，得另一折痕 DG，若 AB=2 ， BC=1 ，求 AG 六、如图的方格中各个小正方形的边长都为1， ABC与 A1 1 1构成的图形是中心对称B C图形。（ 5 分）画出中心对称图形的对称中心O；画出将 A1B1C1 沿直线 DE 方向向上平移5 格得到的 A2 B2C2 .ABCB1C1A1七、（ 9 分）某研究性学习小组在探究矩形的折纸问题时，将一块直角三角板的直角顶点绕着矩形 ABCD （ AB BC）的对角线交点O 旋转（如图 ），图中 M、 N分别为直角三角板的直角边

37、与矩形ABCD的边 CD、BC 的交点 .ADADADOMOOBNCBNCBCN图图图relationship, establishe d equivalent relationship 14, and subject: application problem (4)-scores and perce ntage applicationproblem review content overview answers scores, and per centage appli cation problem of key is: according to meaning , (1) determin

38、e standard volume (units "1") (2) find associate "volume rate corresponds to" relationship, Then in-li ne soluti on. Category fraction multiplication word problem score Division applications engineeringproblem problem XV, a subject : review of the measurementof the amount of capa

39、city, measurement and unit s of measurement of common units of measurement and their significance in rate 1, currency, length, area, volume, unit size, volume, weight and rate. (Omitted) 2, commonly used time units and their relatibetwee n characteristionshi ps. (Slightly) with a measurement units Zhijian of