2012上海版七年级数学上册期末试卷(附答案).pdf

2011学年第一学期期末考试七年级数学试卷（考试时间 90 分钟，满分 100 分）一、填空题：（每小题2 分，共 28 分）1“a的立方与b的平方的差”用代数式表示为：_。2 将多项式3223423xxyx yy按字母y降幂排列：_。3 已知6m nm nxxx，则m=_。4已知M是单项式，且3912Ma b，则M=_。5计算：(2)(2)abba=_。6分解因式：2116x=_。7分解因式：(5)(32)3(5)xxx=_。8当x=_时，分式11xx的值为零。9化简：225741144xxxxxx=_。10用科学计数法表示：0.0000197=_。11设23xzy，则代数式222449xzxzy的值是 _。12下列图中有大小不同的菱形，第1 幅图中有1个，第 2 幅图中有3 个，第 3 幅图中有5个，则第n幅图中共有个。13如图右，三个大小一样的正方形，正方形CDFE绕点C旋转后能与正方形CMNB重合，那么旋转角为_度。题号一二三四五总分得分班级：_姓名_学号：_考生答题不得超过密封线图（1）图（2）图（3）图（n）CDFEMNBA14、将长方形纸片ABCD按如下步骤操作：（1）以过点A 的直线为折痕折叠纸片，使点B恰好落在 AD 边上，折痕与原BC 边交于点 E；（2）以过点E 的直线为折痕折叠纸片，使点 A 恰好落在原BC 边上，折痕与原AD 边交于点F；则AFE的度数为 _.DCBA二、选择题：（每小题3 分，共 12 分）每题只有一个正确答案15已知：(25)(38)(38)(5)xxxxM，则M等于（）（A）23x；（B）236xx；（C）236xx；（D）236xx。16关于x的方程32322xmxx有增根，则m的值为（）（A）2；（B）1；（C）0；（D）1.17在俄罗斯方块游戏中，所有出现的方格体自由下落，如果一行中九个方格齐全，那么这一行会自动消失。已拼好的图案如图所示，现又出现一小方格体，必须进行以下哪项操作，才能拼成一个完整图案，使图上所有方格自动消失（）（A）顺时针旋转90，向下平移；（B）逆时针旋转90，向下平移；（C）顺时针旋转90，向右平移；（D）逆时针旋转90，向右平移18学生参加植树造林。甲班每天比乙班多植5 棵树，甲班植 80 棵树与乙班植70 棵树所用的天数相等，求甲、乙两班每天各植树多少棵。下面列式错误的是（）(A)设甲班每天植树x棵，则80705xx；(B)设乙班每天植树x棵，则80705xx；(C)设甲班在x天植树 80 棵，则80705xx；（D）设乙班在x天植树 70 棵，则70805xx三、简答题：（每小题5 分，共 30 分）19计算：(53)(53)abcabc20分解因式：222(4)5(4)24xxxx解：解：21计算：22231xxxx22计算：2211()()xyxy（结果不含负整数指数幂）EDCBAAFEDC文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3解：解：23 解方程：41233xx24 化简求值：22221244xyxyxyxxyy，解：其中11,3xy解：四、作图题：（每小题5 分，共 10 分）25、画出四边形关于直线l的轴对称图形。26、在边长为1 的正方形网格中：（1）画出ABC关于点O的中心对称图形A B C。（2）ABC与A B C的重叠部分的面积为_。五、解答题：（第27 题 6 分，第 28、29 题每题均为7 分，共 20 分）27正方形ABCD中，ADF绕着点A顺时针旋转90后得到ABM，点M、B、C在一条直线上，且AEM与AEF恰好关于AE所在直线成轴对称。已知7EF，正方形边长为8。（1）写出图中形状、大小都相等的三角形；（2）求EFC的面积。解：28、甲、乙两人玩“托球赛跑”游戏，商定：用球拍托着乒乓球从起跑线L起跑，到达P 点后再返回起跑线为结束（如图所示）；途中乒乓球掉下时须OCBAMFEDCBA30米PLl文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3捡起并回到掉球处继续赛跑，所用时间少的人获胜。结果：甲同学由于心急，掉了球，浪费了 6 秒钟，乙同学则顺利跑完。事后，乙同学说：“我俩所用的全部时间的和为50 秒。”甲同学说：“不算掉球那段时间，我的速度是乙的1.2 倍”，根据图文信息，请通过计算判定哪位同学获胜？解：29、如图，下面两个图案都是由8 个大小一样的小长方形拼成的，并且图（2）中央小正方形的边长是1 厘米.问：（1）图案（1）、图案（2）是中心对称图形吗？（2 分）（2）求小长方形的长和宽.（5 分）解：（1）图（1）_;图 2_.(填:“是”或“不是”)（图 1）（2）（图 2）2011学年第一学期七年级数学期末考卷答案一、填空题：（每小题2 分，共 28 分）1、32ab；2、3223234yxyx yx；3、3；4、34a b；5、224ab；6、11()()44xx；7、(5)(35)xx；8、1；9、1x；10、51.9710；11、0；12、21n；13、180；14、67.5；二、选择题：（每小题3 分，共 12 分）每题只有一个正确答案15、C；16、B；17、C；18、D；三、简答题：（每小题5 分，共 30 分）19、解：原式=5(3)5(3)abcabc1 分=2225(3)abc1 分文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3=22225(96)abbcc1 分=2222596abbcc2 分20、解：原式=224348xxxx3 分=21348xxxx2 分21、解：原式=22231xxxx1 分=2(1)23(1)(1)(1)xxx xx xx x1 分=(1)xx x1 分=11x2 分22、解一：原式=221111()()xyxy1 分解二：原式=111111()()xyxyxy1 分=2222yxyxx yxy1 分=11xy1 分=22()()yxyxxyx yyx1 分=11xy1 分=yxxy2 分=yxxy2 分23、解：41233xx1 分412(3)x（或323x）1 分29x1 分4.5x1 分文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3经检验：4.5x是原方程的解，所以原方程的解是4.5x。1 分24、解：原式=2(2)12()()xyxyxyxy xy1 分=21xyxy1 分=yxy1 分当11,3xy时，原式=122 分四、作图题：（每小题5 分，共 10 分）25、画错一个点扣1 分，漏结论扣1 分；26、（1）画图；3 分（2）4；2 分注：两题结论均未写，只扣1 分；五、解答题：（第 27 题 6 分，第 28、28 题每题均为7 分，共 20 分）27、解：（1）ADF和ABM；AEM和AEF；2 分（2）正方形 ABCD的面积=64；1分AEM的面积=28 1 分EFC的面积=6428288；2 分28、解：设乙的速度为x米/秒，则甲的速度为1.2 米/秒。1分60606501.2xx 3分2.5x 1分经检验：2.5x是原方程的根，且符合题意；1分1.23x60242.5秒，502426秒文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3答：乙用时少，乙获胜。1分29、解:（1）图（1）不是中心对称图形；1分图（2）是中心对称图形.1分（2）解法一：设小长方形长为x厘米，则宽为x53厘米。1分由题意得：1532xx 2分5x 1分353x 1分答：小长方形的长为5 厘米，宽为3 厘米。解法二：设小长方形的长为x厘米，则宽为y厘米。1分3521xyyx 2分53xy 2分（得到x或y就得 1 分）答：小长方形的长为5 厘米，宽为3 厘米。文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A9 HD2S5F9G10B2 ZU1P1U3A9Q3文档编码:CN5U5S3A10A