练习材料：

L42-1: Modern cavemen

Cave exploration, or pot-holing, as it has come to be known, is a relatively new sport. Perhaps it is the desire for solitude or the chance of making an unexpected discovery that lures people down to the depths of the earth. It is impossible to give a satisfactory explanation for a pot-holer's motives. For him, caves have the same peculiar fascination which high mountains have for the climber. They arouse instincts which can only be dimly understood.

Exploring really deep caves is not a task for the Sunday afternoon rambler. Such undertakings require the precise planning and foresight of military operations. It can take as long as eight days to rig up rope ladders and to establish supply bases before a descent can be made into a very deep cave. Precautions of this sort are necessary, for it is impossible to foretell the exact nature of the difficulties which will confront the pot-holer.

音标软件暂时故障。

任务配置：

L0＋L4

知识笔记：

新词：exploration 勘测，探险；pot-holing 洞穴探险运动；desire 渴望，需求；solitude 单独，幽静之地；lure 吸引力，诱饵；satisfactory 令人满意的；explanation 解释，说明；motive 动机，主旨；arouse 引起，唤醒；instinct 本能，天性；dimly 依稀，隐隐约约；rambler 漫步者；precise 精密，清晰的；establish 建立，创建；precaution 预防措施；

练习感悟：

这两天晚上一直在纠结音标网站打不开的问题，但刚刚终于释然了。又能怎么样呢？好像对正常的练习影响也不是特别的大。当然这不是一件好事吧，片面影射平时不那么认真抠读音的现象……

这个假期要好好整理一下以前所得。