1.有理数与数轴在数轴上,原点右边的点表示正数,原点左边的点表示负数,原点表示数“0”,原点把数轴分成正半轴和负半轴两部分.在数轴上,若干个点所表示的数中,右边的点所表示的数一定大于左边的点所表示的数,不管这些点在原点的同侧还是异侧.由于数轴是一条直线,没有端点,可以向两边无限伸展,所以既没有最大的数,也没有最小的数. 1. The rational number and the number axis are on several axes. The point on the right of the origin indicates a positive number, the point on the left of the origin indicates a negative number, the origin indicates the number “0”, and the origin divides the number axis into two parts: positive and negative semi-axes. On several axes, several The number of points represented by the number of points on the right is greater than the number of points on the left, regardless of whether the points are on the same side of the origin or on the opposite side. Since the number axis is a straight line, there is no end point and can be on both sides. Infinitely stretched, so there is no maximum number, no minimum number.