D．rewards

　　20.A．lazy

　　B．busy

　　C．curious

　　D．stubborn

　　、阅读理解

　　A

　　Life in the Clear

　　Transparent animals let light pass through their bodies the same way light passes through a window. These animals typically live between the surface of the ocean and a depth of about 3,300 feet—as far as most light can reach. Most of them are extremely delicate and can be damaged by a simple touch. Sonke Johnsen, a scientist in biology, says, “These animals live through their life alone. They never touch anything unless they’re eating it, or unless something is eating them.”

　　And they are as clear as glass. How does an animal become see-through? It’s trickier than you might think.

　　The objects around you are visible because they interact with light. Light typically travels in a straight line. But some materials slow and scatter(散射) light, bouncing it away from its original path. Others absorb light, stopping it dead in its tracks. Both scattering and absorption make an object look different from other objects around it, so you can see it easily.

　　But a transparent object doesn’t absorb or scatter light, at least not very much, Light can pass through it without bending or stopping. That means a transparent object doesn’t look very different from the surrounding air or water. You don’t see it ----you see the things behind it.

【2016届高三英语二轮复习作业卷：22（含解析）（河北衡水）】相关文章：

★ 2017届高考英语二轮复习书面表达限时测验：5（含解析）

★ 山西省永济市涑北中学高三英语总复习：美文欣赏（2）（Invitation）

★ 湖南省长沙县实验中学2016届高三英语二轮复习书面表达复习重点话题指导专题12 人物类话题指导（教师版）

★ 2017届高考英语二轮复习课时训练：4（含解析）

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习书面表达专题训练：技法4 巧妙的过渡连贯的衔接（含解析）

★ 高考英语二轮复习经验指导2016年

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 9 A卷 Word版含解析

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习书面表达专题训练：Ⅱ卷强化增分练 训练4（含解析）

★ 2017年高考英语二轮复习精品资料：专题15 完形填空（押题专练）（原卷版）

★ 四川省2016届高考英语一轮复习课时作业（39） Module 3 Literature 外研版选修8