In the lungs the blood gets from the air-tubes the oxygen which it needs, 肺部的血液从气管中获取所需的氧气, and the air takes from the blood hurtful things which it must get rid of, and which we breathe out with our breath. 而空气则

发表于:2018-12-18 / 阅读(32) / 评论(0) 分类 英国学生科学读本

By Cathy Majtenyi Mekele, Ethiopia 22 March 2006 The prickly pear cactus grows abundantly in many parts of northern Ethiopia's Tigray region. Sometimes known as a

发表于:2019-01-06 / 阅读(101) / 评论(0) 分类 2006年VOA标准英语(三月)

Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康

发表于:2019-02-07 / 阅读(66) / 评论(0) 分类 阅读空间

Tree Hugger 是电影Juno原声带中的一首插曲。这首歌由Kimya Dawson 和 Antsy Pants 联手带来,带着轻松愉悦的气息描述了如同童话里的场景。 The flower said, I wish I was a tree, The tree said, I wish I could be A di

发表于:2019-02-11 / 阅读(59) / 评论(0) 分类 英乐时空

Nice Set of Pipes 尽管管风琴对我们来说还是比较生疏的乐器,但它的发音原理与我国民间流传至今仍在使用的古老乐器芦笙十分近似。据史料记载,公元前250年前古希腊工程师克提西比奥(Ktes

发表于:2019-02-25 / 阅读(54) / 评论(0) 分类 英语听力文摘 English Digest

不用词典,猜测下面这些加粗单词的意思..(答案在最后,别看) 1. To carry out his economic programs, Roosevelt had to contend with a Supreme Court that was deeply opposed to those programs. a. travel b. surrender c. struggle d. join

发表于:2019-03-13 / 阅读(129) / 评论(0) 分类 雅思英语