论文部分内容阅读
人口问题是地理高考的常考点,其图示考查形式多种多样,层出不穷。现就近年来新课标试卷出现的常见形式分类解读如下。一、直角坐标系图直角坐标统计图是最常见,也是应用最广泛的一类图形。按照图形表现形式的不同,直角坐标统计图可分为点状图、曲线(折线)图、柱状图、方形统计图等四种类型。1.点状图点状图中的横坐标和纵坐标表示的内容比较灵活,一般为出生率和死亡率,或者为户籍人口和常住人口,或者为迁入人口和迁出人口等。
The population problem is a common test site for geography entrance examinations. The forms of examinations and examinations are various and endless. Now in recent years the new curriculum papers appeared in the common form of classification as follows. Cartesian coordinates Cartesian coordinates Chart is the most common, but also the most widely used type of graphics. In accordance with the different forms of graphical representation, Cartesian coordinates can be divided into point chart, curve (broken line), histogram, square chart and other four types. 1. Dot plots Dot plots in the horizontal and vertical coordinates of the content that is more flexible, usually birth and death rates, or census register population and resident population, or for immigrants and emigrants.