论文部分内容阅读
近几年高考中,解析几何解答题的得分率始终较低。这一方面与解几问题的特点有关:如入口宽、方法多,而要求得最后答案,在策略上又必须具有一定的选择能力,否则,一旦方法偏离轨道,大量繁杂的运算令人苦不堪言;另一方面又与目前高三解几复习离开教材过远有关。师生陷入茫茫题海,以致于背题型、讲套路,收效却甚微。其实,纵观’89至’95高考解几的解答题,几乎每年都来源于课本题,只是在问题的情境上作适当调整和改变。 本文通过展现高考题与课本题的几种变迁手法,以引起大家复习时重视,减少选题的盲目性。
In the college entrance examination in recent years, the score rate of analytical geometry solution questions is always low. This aspect is related to the characteristics of several problems: if the entrance is wide, there are many methods, and the final answer is required, there must be a certain selection ability in the strategy. Otherwise, once the method is off track, a large number of complicated operations are extremely dire. On the other hand, it is related to the fact that the current senior high school students have left the textbooks for a long time. Teachers and students are caught up in the sea of questions, resulting in back problems and routines, but with little success. As a matter of fact, reviewing the solution questions for the ’89 to ’95 college entrance exams is almost every year based on textbook problems. It is only appropriate adjustments and changes in the context of the problem. This article presents several vicissitudes of the college entrance examination question and textbook question, so as to cause everyone to pay attention to review, reduce the blindness of the topic.