> 08 新型塑胶制品的应用 DATE=3-1-01 TITLE=SCIENCE REPORT- Self-Healing Plastic BYLINE=Mario Ritter (Start at 59

发表于:2018-12-07 / 阅读(48) / 评论(0) 分类 科技之光

一个英语单词可分为三部分:前缀(prefix)词根(root)后缀(suffix)。位于词根前面的部分就是前缀。前缀,可以改变单词的意思。 e- 表示出去,外面 elect = e + lect(选择;select) 选出来 v

发表于:2018-12-19 / 阅读(47) / 评论(0) 分类 英语PK台

Agriculture Report - Cork: More Than Just a Bottle Stopper New uses are found for this environmentally friendly crop, even as some winemakers change to plastic or metal caps. Transcript of radio broadcast: 19 May 2008 This is the VOA Special English

发表于:2019-01-11 / 阅读(41) / 评论(0) 分类 VOA慢速英语2008年(五)月

DAVID GREENE, HOST: Few inventions in modern history have been as successful as plastic. It's in vehicles, building materials, most of our electronic devices. We wrap stuff in it. Maybe we even wear it. Now a research team has tallied up how much pla

发表于:2019-01-16 / 阅读(40) / 评论(0) 分类 2017年NPR美国国家公共电台7月

AGRICULTURE REPORT - Cork: More Than Just a Bottle StopperBy Dana Demange Broadcast: Tuesday, September 12, 2006 This is the VOA Special English Agriculture Report. Cork is a light brown material harv

发表于:2019-01-30 / 阅读(61) / 评论(0) 分类 2006年慢速英语(九)月

Lesson 32 Only A Cork 第32课 一块软木 Corks are so cheap and so common, that every child who reads this Lesson can get a cork to handle and to look at. Let us try with a pen-holder to keep a cork down at the bottom of a glass of water. It is ve

发表于:2019-02-13 / 阅读(27) / 评论(0) 分类 英国学生科学读本