Lesson 9 Is It a Good Idea to Control Population Growth in the World? Text What Overpopulation Feels Like We moved slowly through the city in a taxi and entered a crowded slum district. The temperature was well over 100and the air was thick with dust

发表于:2018-12-16 / 阅读(131) / 评论(0) 分类 日常英语口语

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? There have been tremendous declines in fertility. The key has been the prevention of unwanted births, really around the globe. John Casterline directs the Initiative in

发表于:2018-12-24 / 阅读(65) / 评论(0) 分类 Scientific American(二)月

Do you come from a country that has let's say a history of environmental disaster or conquests, and your culture probably tight that has strong social norms and doesn't tolerate much deviance from this norms, and then your culture probably autocratic

发表于:2018-12-24 / 阅读(65) / 评论(0) 分类 Scientific American(五)月

This is Scientific Americans 60-SecondScience. Im John Matson, got a minute? Say you need a diamond. You could go downto the jeweler, or you could put some carbon deep underground and let it sitfor a couple billion years. Or you could hop in a starsh

发表于:2018-12-24 / 阅读(63) / 评论(0) 分类 Scientific American(八)月

This is Scientific American 60 second Science, I'm Sophie Bushwick, got a minute In the lab, female rodents sometimes terminate their pregnancies after being exposed to new males. Its called the Bruce effect, for researcher Hilda Bruce. Now a study i

发表于:2018-12-24 / 阅读(80) / 评论(0) 分类 Scientific American(二)月

[00:00.00]How to solve the Problem of Heavy Traff [00:04.68]With the development of industry and the growth of population,heavy traffic has become a serious problem in citie [00:14.16]Large numbers of bikes,motorcycles,cars and buses are making the s

发表于:2018-12-30 / 阅读(59) / 评论(0) 分类 英语六级听力练习集锦

Inventions for Exploring Space: Artificial Satellites Sputnik Ⅰ was the first artificial satellite. It can be described as an aluminium 1 sphere with a diameter 2 of 58 centimetres and weighing 83.6

发表于:2018-12-30 / 阅读(81) / 评论(0) 分类 英语沙龙2004全年合辑下

Learn English for the 2008 Olympics —— Single Child Family Foreigner: It was in the early eighties that I first became aware of your one child family as the main policy in family planning. I was t

发表于:2018-12-30 / 阅读(88) / 评论(0) 分类 英语沙龙2004全年合辑上

The United States remains a popular destination for immigrants from Africa, according to the U.S.-based Pew Research Center. 根据美国皮尤研究中心的统计,美国仍然是最多非洲移民前往的目的地。 The number of African immigr

发表于:2019-01-02 / 阅读(143) / 评论(0) 分类 2017年VOA慢速英语(二)月

Mas Yamashita does not remember when he and his family left their small home in Oakland, California. But he does remember where they went: the Tanforan Assembly Center in San Bruno, California. During World War II, thousands of Japanese-Americans wer

发表于:2019-01-03 / 阅读(91) / 评论(0) 分类 2018年VOA慢速英语(五)月

But technology is producing one modern trend that I find particularly important. 但科技正在制造一种当代潮流,我认为它尤为重要。 It's associated with the concept of paradox of choice. 它和选择悖论这一概念相关。 For

发表于:2019-01-03 / 阅读(102) / 评论(0) 分类 TED演讲科技篇

怀双胞胎的母亲更长寿 Having two babies at a time is associated with a longer life, according to a new study. But that's not because doubling up on dirty diapers increases life span; instead, moms of twins are physically stronger in the firs

发表于:2019-01-05 / 阅读(51) / 评论(0) 分类 实用英语

Theres been an unexpected development in our understanding of drug resistance in bacteria. The accepted scenario was a simple case of evolutionary selection. In a bacterial population exposed to a killer drug, a few lucky individuals might have a gen

发表于:2019-01-08 / 阅读(154) / 评论(0) 分类 Scientific American(九)月

This is scientific American sixty seconds sicience. I am Cynthia Graber.That's all just take a minute.There is an easy way to acarch people to take stairs to stand elevator put a sign to remind them to. Study have found that science works but those e

发表于:2019-01-08 / 阅读(76) / 评论(0) 分类 Scientific American(二)月

中文 英文 缩写 * (符) star (symbol) [美国]电气和电子工程师学会 Institute for Electrical and Electronic Engineers IEEE “请发码”信号

发表于:2019-01-08 / 阅读(170) / 评论(0) 分类 电信英语

Direction:For this part,you are allowed 30 minutes to write a composition in three paragraphs.You are given the first sentence of the three paragrapgs.Your part of the composition should be no less than 100 words,not including the words given.Remembe

发表于:2019-01-08 / 阅读(99) / 评论(0) 分类 英语四级作文范文

1. It must be pointed out that it is one of our basic State policies to control population growth while raising the quality of the population. 2. It is (has been) estimated that the world’s populati

发表于:2019-01-11 / 阅读(59) / 评论(0) 分类 考研英语

This is the VOA Special English Development Report. Soon, more of us will be living in cities than in rural areas. Population experts at the United Nations had thought that would happen by this year. Lately their estimate is that in two thousand eigh

发表于:2019-01-11 / 阅读(139) / 评论(0) 分类 VOA慢速英语2007年(七)月

THIS IS AMERICA - A Nation of Immigrants, Divided Over the Subject of Immigration Debate centers on millions of illegal immigrants in the country. The U.S. Congress has failed to agree on a reform plan, so states are passing their own laws. Transcri

发表于:2019-01-11 / 阅读(54) / 评论(0) 分类 VOA慢速英语2008年(三)月

AS IT IS 2015-11-03 More of Us to Go Thirsty As Earth Dries Up Water supplies around the planet are running dry at an alarming rate. Scientists say the world is experiencing a shortage of fresh water. It will only worsen as the population grows and t

发表于:2019-01-12 / 阅读(69) / 评论(0) 分类 2015年VOA慢速英语(十一)月