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1、第一章数与式自我测试时间：90 分钟分值：120 分一、选择题(每小题 4 分，满分40 分)1明天数学课要学“勾股定理”，小敏在“百度”搜索引擎中输入“勾股定理”，能搜索到与之相关的结果个数约为12 500 000，这个数用科学记数法表示为()A1.25105B1.25106C 1.25107D.1.251082四个数 5，0.1，21，3中，为无理数的是()A 5 B 0.1 C.21D.33已知实数m、n 在数轴上的对应点的位置如图所示，则下列判断正确的是()Am0 B n0 Cmn0 4下列各数中，比0 小的数是()A 1 B1 C.2D 5(2)()A 2 B.2 C 2 D4 6
2、2 的倒数是()A2 B 2 C.21D217下列等式一定成立的是()A.a2a3a5B(ab)2a2b2C(2ab2)36a3b6D(xa)(xb)x2(a b)xab8如果 3x2n1ym与 5xmy3是同类项，则m 和 n 的取值是()A3 和 2 B 3 和 2 C3 和 2 D 3 和 2 9设 mn0，m2n24mn，则mnnm22()A32B.3C.6D 3 10如图，从边长为(a4)cm 的正方形纸片中剪去一个边长为(a1)cm 的正方形(a0)，剩余部分沿虚线又剪拼成一个矩形(不重叠无缝隙)，则矩形的面积为()A(2a2 5a)cm2B(3a15)cm2C(6a9)cm2D(
3、6a15)cm2二、填空题(每小题 4 分，满分40 分)11计算：21 _.12根据里氏震级的定义，地震所释放的相对能量E 与震级 n 的关系为E10n，那么 9 级地震所释放的相对能量是7 级地震所释放的相对能量的倍数是_13按下面程序计算：输入x3，则输出的答案是_.14要使式子aa2有意义，则a 的取值范围为_15化简：11222yxyxyx_.16分式方程231xx的解为 _17在35，4,0 这四个数中，最大的数是_.18分解因式：2x28_.19若 a11m1，a2111a，a3121a，；则 a2011的值为 _(用含 m的代数式表示)20观察下面的图形，它们是按一定规律排列的
4、，依照此规律，第_个图形共有120 个三、解答题(21 题每小题6 分，2223 题各 6 分，24 25 题各 8 分，满分 40 分)21(1)计算：121)21(2218；文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z
5、7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM
6、7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z
7、7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM
8、7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z
9、7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM
10、7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5(2)已知11x1，求12xx1 的值22先化简，再求值：(a2)(a2)a(1a)，其中 a5.23先化简，再求值：xyxxyyxyxyyx244442232，其中 x21，y21
11、.文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY
12、6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M
13、5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY
14、6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M
15、5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY
16、6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M
17、5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M524解分式方程：21232xx2x.25列方程或方程组解应用题：京通公交快速通道开通后，为响应市政府“绿色出行”的号召，家住通州新城的小王上班由自驾车改为乘坐公交车已知小王家距上班地点18 千米，他用乘公交车的方式平均每小时行驶的路程比他用自驾车的方式平均每小时行驶的路程的2 倍还多 9 千米，他从家出发到达上班地点，乘公交车方式所用时间是自驾车方式所用时
18、间的73.小王用自驾车方式上班平均每小时行驶多少千米？参考答案文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7
19、ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G
20、8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7
21、ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G
22、8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7
23、ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G
24、8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5一、选择题(每小题 3 分，满分30 分)1(2011 绍兴)明天数学课要学“勾股定理”，小敏在“百度”搜索引擎中输入“勾股定理”，能搜索到与之相关的结果个数约为12 500 000，这个数用科学记数法表示为()A1.25105B1.25106C 1.25107D.1.25108答案C 解析12
25、500 0001.25107，科学记数法2(2011 广州)四个数 5，0.1，21，3中，为无理数的是()A 5 B 0.1 C.21D.3答案D 解析3是无限不循环小数，是无理数3(2011 成都)已知实数m、n 在数轴上的对应点的位置如图所示，则下列判断正确的是()Am0 B n0 Cmn0 答案C 解析因为 m0，所以 mn0.4(2011 宿迁)下列各数中，比0 小的数是()A 1 B1 C.2D 答案A 解析10)，剩余部分沿虚线又剪拼成一个矩形(不重叠无缝隙)，则矩形的面积为()A(2a2 5a)cm2B(3a15)cm2C(6a9)cm2D(6a15)cm2答案D 解析其面积等
26、于(a4)2(a1)2a28a16(a22a1)6a15.二、填空题(每小题 3 分，满分30 分)11(2011 江西)计算：21_.答案3 解析21 2(1)3.12(2011 安徽)根据里氏震级的定义，地震所释放的相对能量E 与震级 n 的关系为E 10n，那么 9级地震所释放的相对能量是7级地震所释放的相对能量的倍数是_文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V
27、2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N
28、9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V
29、2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N
30、9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V
31、2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N
32、9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5答案100 解析109 107
33、102 100.13(2011 广东)按下面程序计算：输入x3，则输出的答案是_.答案12 解析(x3x)2(333)2 24 212.14(2011 黄冈)要使式子aa2有意义，则a 的取值范围为 _答案a 2 且 a0 解析有a 20，a 0，解得a2，a0.15(2011 广东)化简：11222yxyxyx_.答案xy1 解析分子 x22xyy21(x22xyy2)1(x y)212(xy1)(xy1)16(2011 益阳)分式方程231xx的解为 _答案x 1 解析去分母，x23x，x 1，经检验，x 1 是方程的根17(2011 河北)在35，4,0 这四个数中，最大的数是_.答案解
34、析因为 3504，所以最大的数为.18(2011 嘉兴)分解因式：2x2 8_.答案2(x2)(x2)解析2x282(x24)2(x2)(x2)19(2011 桂林)若 a11m1，a2111a，a3121a，；则 a2011的值为 _(用含 m 的代数式表示)答案11m文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码
35、:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3
36、G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码
37、:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3
38、G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码
39、:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3
40、G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5解析当 a1 11m时，a21111m1mm11m1，a3111m11m1 m，a411
41、m，a51m1，而 201136701，所以 a2011 11m.20(2011 绵阳)观察下面的图形，它们是按一定规律排列的，依照此规律，第_个图形共有 120 个答案15 解析第 n 个图形有12 3 n21n(n1)，当21n(n1)120，n2n240(n16)(n15)，n 16(舍去)或 n15.三、解答题(21 题每小题6 分，2223 题各 6 分，24 25 题各 8 分，满分 40 分)21(1)(2011呼和浩特)计算：121)21(2218；解原式 3 22212 3 21.(2)(2011邵阳)已知11x1，求12xx1 的值文档编码:CZ5G8Z7X5V2 HY6L
42、8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文
43、档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L
44、8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文
45、档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L
46、8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文
47、档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L
48、8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5解1x11，x11，2x1x 12113.22(2011 宁波)先化简，再求值：(a 2)(a 2)a(1a)，其中 a5.解原式 a24aa2a4，当 a 5时，原式 1.23(2011 黄石)先化简，再求值：xyxxyyxyxyyx244442232，其中 x2 1，y2 1.解原式y x24y2x2y24xyx22xyx2yy x 2y x2yx2y2x x2yx2yxy.当 x21，y21
49、时，原式(21)(21)(2)2121.24(2011 茂名)解分式方程：21232xx2x.解方程两边乘以(x2)，得：3x2122x(x2)，3x212 2x24x，x2 4x120，(x 2)(x 6)0，解得：x1 2，x26，经检验：x6 是原方程的根，x 2 是增根，舍去原方程的根是x6.25(2011 北京)列方程或方程组解应用题：京通公交快速通道开通后，为响应市政府“绿色出行”的号召，家住通州新城的小王上班由自驾车改为乘坐公交车已知小王家距上班地点18 千米，他用乘公交车的方式平均每小时行驶的路程比他用自驾车的方式平均每小时行驶的路程的2 倍还多 9 千米，他从家出发到达上班地
50、点，乘公交车方式所用时间是自驾车方式所用时间的73.小王用自驾车方式上班平均每小时行驶多少千米？解设小王用自驾车方式上班平均每小时行驶x 千米，依题意，得182x 93718x，文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z7X5V2 HY6L8S3G3K7 ZM7V4N9F6M5文档编码:CZ5G8Z