被困在不健全的制度下,一个国家怎么可能脱贫呢?经济学家Paul Romer提出全新见解:特别市,由多国联合政府管理的、城市规模的管理区域。(关塔那摩湾会变成下一个香港么?)

发表于:2018-12-09 / 阅读(50) / 评论(0) 分类 TED公开课:贫穷至进步

分集介绍:积分的概念来源于实际的应用。对一个函数积分可以理解为求曲线下的面积,但积分的作用不仅仅如此。有了积分,我们就可以去计算曲线的弧长,可以去求区域的面积, 也可以去

发表于:2018-12-09 / 阅读(270) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

阿富汗安全部队收复失地 A military offensive against Islamic State in the Nangarhar's Achin district continued Friday for a fourth day, clearing areas once under IS control. 周五,政府军继续在楠格哈尔省亚珍区打击伊斯兰国

发表于:2018-12-16 / 阅读(53) / 评论(0) 分类 VOA标准英语2016年(二月)

High pressure continues to control the entire Kenting region, and that will keep most skies clear through the evening. 高气压继续控制整个垦丁区域,这使整天的天气将会保持晴好。 A lot of sunshine has produced another very wa

发表于:2018-12-28 / 阅读(68) / 评论(0) 分类 赖世雄英语新闻听力通

[00:02.94]第七单元 课文A [00:05.88]difinition [00:07.56]n.定义,释 [00:09.25]marriage [00:10.78]结婚,婚姻 [00:12.30]descend [00:13.73]vi.1传下,遗传 2下降,下来 [00:15.15]ancestor [00:17.08].祖先 祖宗 [00:19.02]household [00:20.99]n家庭 户 a家庭的,

发表于:2018-12-29 / 阅读(125) / 评论(0) 分类 大学英语自学教程上

Love is All We Need 爱情大补帖 Many songs, poems, and books have been written on loves strong effect on people. The state of being in love has even been compared to being sick or insane. A study by Professor Semir Zeki of University College Lond

发表于:2019-01-02 / 阅读(56) / 评论(0) 分类 双语有声阅读

Study: We Learn Language in Pre-Human Area of Brain From VOA Learning English, this is the Health Lifestyle report. A new study from brain researchers helps explain how the human brain evolved, or changed over time, to permit people to speak and writ

发表于:2019-01-03 / 阅读(84) / 评论(0) 分类 2018年VOA慢速英语(八)月

[全屏观看] 点击右键- 另存为 可保存这个Flash影片 作品简介 : 移动鼠标接住跳动的小球

发表于:2019-01-08 / 阅读(51) / 评论(0) 分类 英语娱乐小游戏

[全屏观看] 点击右键- 另存为 可保存这个Flash影片 游戏说明: S.D.J.K/控制鸟,类似劲舞团的游戏。

发表于:2019-01-08 / 阅读(69) / 评论(0) 分类 好玩英语小游戏

Conflict, Climate Affect Food Security 区域冲突和气候影响食品安全 A new report says there were both advances and setbacks in food security in 2014. Poverty was reduced last year and the number of hungry people declined. However, conflict

发表于:2019-01-14 / 阅读(54) / 评论(0) 分类 VOA标准英语2015年(三月)

Time spent in zero G changes the body: Astronauts come home with bone loss and muscle weakness. But what happens in their heads? To find out, researchers examined MRIs of astronauts brains taken before and after flight. They looked at 12 astronauts w

发表于:2019-01-20 / 阅读(87) / 评论(0) 分类 2017年Scientific American(二)月

World Bank Issues Regional Health Reports 世界银行区域健康报告 The World Bank has released new reports outlining the health challenges facing six major regions. Those challenges include not only many types of disease, but road accidents as

发表于:2019-02-01 / 阅读(46) / 评论(0) 分类 VOA常速英语2013年(九月)

The Greater Mekong Subregion Economic Corridor Forum was held in Kunming, South China's Yunnan province on Thursday. The forum was co-hosted by Chinese Minister of Commerce Gao Hucheng and Vice-President of the Asian Development Bank Stephen Groff. M

发表于:2019-02-05 / 阅读(82) / 评论(0) 分类 cctv9英语新闻2015年

知道少许咒骂的话有些用处,至少吵架的时候可以帮忙发泄,有益健康。但要适可而止,有涵养的人当然不会总说,如果老是这样,别人会敬而远之的。国内开玩笑,经常是越露骨越狠,越能

发表于:2019-02-09 / 阅读(71) / 评论(0) 分类 英语口语

Some Habitable Zone Exoplanets May Get X-Rayed Out X射线可能照射到一些可居住外行星区域 As astronomers hunt for habitable, Earth-like worlds, one popular place to look is around M stars, a type of red dwarf. Couple reasons for that: 当

发表于:2019-02-14 / 阅读(61) / 评论(0) 分类 2018年科学美国人4月

According to Daily Mail on June 24, Israeli researchers have pinpointed a human brain region that keys in overcoming fear. The drug that activates these brain cells could help people face their phobias, from spiders to heights and public speaking. Sc

发表于:2019-02-14 / 阅读(70) / 评论(0) 分类 阅读空间

1. pull ones leg. 类似kidding是开玩笑的意思,不是拉后腿的意思。还有一个常见的句子是break a leg,意思是祝你好运,不是断腿的意思。 2. in ones birthday suit. 类似naked,是赤身裸体的意思,不是穿着

发表于:2019-02-15 / 阅读(38) / 评论(0) 分类 英语口语

JUDY WOODRUFF: The Obama administration has essentially cleared the way to allow Royal Dutch/Shell to begin drilling for oil and gas in the Arctic Ocean this summer. It's one of the most consequential and long-awaited drilling decisions from the gove

发表于:2019-02-17 / 阅读(50) / 评论(0) 分类 PBS访谈社会系列

台湾籍旅美老师今天交给我们的句子是: Different parts of your brain control the sensation of the perception of vision, or of hearing, or of smell, or of taste, and a lot of those areas in the brain are neighbors. 脑中不同的区域掌

发表于:2019-02-21 / 阅读(53) / 评论(0) 分类 留美老师带你每日说英文

玩笑常常逗得人们哈哈大笑,确实有益身心健康。如果一个玩笑把你逗得前仰后合,该怎么用英文来描述这个真是太好笑了呢?看看下面的说法吧! 1. It's hilarious.真是太好笑了。 如果别人开了什

发表于:2019-03-02 / 阅读(84) / 评论(0) 分类 英语口语