Editors note: This is the third episode of four-part series on verb tenses. Be sure to listen to part one and part two first. For VOA Learning English, this is Everyday Grammar. Today we are going to talk about the perfect verb tenses. Perfect tenses

发表于:2018-11-27 / 阅读(360) / 评论(0) 分类 2016年VOA慢速英语(十二)月

图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh

发表于:2018-12-07 / 阅读(82) / 评论(0) 分类 数学英语

Describing Order and Sequence Patrick: Okay, your first task is to put all of these files in order. Maya: Wow, there must be hundreds of files in this storeroom. How am I supposed to organize them? Patrick: Create a basic filing system. Put things in

发表于:2018-12-27 / 阅读(73) / 评论(0) 分类 2014年ESL之商务英语

Model 2 What did you think about the movie? John: So what did you think about the movie? Laura: Well I think this Star Wars episode is an excellent piece of work, but not as good as the previous ones. John: Really? But I think this Star Wars episode

发表于:2018-12-29 / 阅读(40) / 评论(0) 分类 新视野大学英语:视听说教程 2

A Chinese spice that increases the flavour of food has become the centre of public attention, thanks to the growing profile of bird flu . Star anise, a herbal fruit mainly grown in China, as well as V

发表于:2019-01-03 / 阅读(62) / 评论(0) 分类 奥运英语

Now the Sun will be burning hydrogen as the stars doing in the main sequence until the hydrogen is exhausted in the core, and at that point the stars start to die, the outer layer of the Sun will expand, the Sun will move away from the main sequence

发表于:2019-01-11 / 阅读(54) / 评论(0) 分类 探索与发现2015年