伊卡莱姆的ScalersTalk第四轮新概念朗读持续力训练Day

练习材料：

Lesson 13-2 The search for oil

The geologist needs to know what rocks the drill has reached, so every so often a sample is obtained with a coring bit. It cuts a clean cylinder of rock, from which can be seen the strata the drill has been cutting through. Once we get down to the oil, it usually flows to the surface because great pressure, either from gas or water, is pushing it. This pressure must be under control, and we control it by means of the mud which we circulate down the drill pipe. We endeavour to avoid the old, romantic idea of agusher,which wastes oil and gas. We want it to stay down the hole until we can lead it off in a controlled manner.

应用配置：L0+L4

知识笔记： geologist/ʤɪˈɒləʤɪst    cylinder/sɪlɪndər    strata/strɑːtə    circulate/sɜrkjəˌleɪt    endeavour/ɪnˈdɛvər    gusher/gʌʃər

练习感悟：用时44分钟。今日舌头打结，语感略欠缺，录制好的，看到群里有更优秀的作品，又撤回重来一遍，50秒搞定。