PBS高端访谈:试管受精成功的压力掩盖了伦理问题

Since the 1980s, millions of American women have used fertility treatments, including the implantation of embryos, to become pregnant. But the process is expensive, averaging $12,000. Earlier this month, Reveal, part of the Center for Investigative R

The Worst Christmas Jobs 圣诞特辑 5

Medieval Christmas was a weird mixture of Christianity and Pagan customs. Along with the boar's head no Christmas feast was complete without the giant Yule Log. If you've ever enjoyed a slice of choco

数学英语 27 What is the Mode?

by Jason Marshall In recent articles, weve talked about two methods of calculating average values, the mean and the median, and weve talked about some everyday uses for them such as how to use median averaging to get better photos. But thats not all

神秘的月球 第3期

The full moon triggers a frenzy of activity. 满月会引发一连串狂乱的事件 It is the time of the highest tides. 海水在此时达到满潮 And in the oceans the full moon's bright light 在海中，满月明亮的胧光 is a mating call fo

英语专业四级作文范文 Mobile phones

Directions： Study the following graph carefully and write an essay in which you should 1) analyze the graph, and 2) give your comments on the trend. In recent years there has been a dramatic rise in the cell phones, which are now essential to mi

SSS 2010-06-21

Have you been having some trouble getting some digits lately when you ask a girl out? Maybe you should check what music is playing. Thats what French psychologists found. They published their research in the journal Psychology of Music. First the res

英语音频杂志：双生子

Twins by Richard Sidaway What do the singer Alanis Morissette, the supermodel Gisele Bundchen and the ex-Secretary General of the United Nations Kofi Annan all have in common? The answer is, they all have a brother or sister who was born on the same

数学英语 15 What Are Averages?

by Jason Marshall In the last few articles, weve talked about decimals and how theyre related to fractions through the process of division. Now, its time to turn our attention to some practical applications of these tools. Up first today were talking

数学英语 07 How to Calculate Median Values

by Jason Marshall In the last article, we learned that there are several ways to calculate the average value of a sample of data. We focused on one such method, the arithmetic mean, and used it to calculate the average number of potato chips in a bag

到2050年，我们居住的城市将更加拥挤

By 2050, We will Live in a More Populous, Urban World 到2050年，我们居住的城市将更加拥挤 Demographers say India, China, Pakistan, Nigeria, Indonesia and Bangladesh will account for clos

＂复活节＂的来历

The Easter bunny has arrived, chocolate Easter eggs are in the shops, the daffodils are out, and the weather is getting better! Easter is a great time of year, but what are its origins? Originally Easter was called Pascha after the Hebrew word for Pa

VOA标准英语2012--‘C’ Isn't Average in All Schools Any More

C Isn't Average in All Schools Any More Theres an old, but often-played, song by the late Sam Cooke whose lyrics go, in part: Now I don't claim to be an A student But I'm trying to be. And so are millions of other American children each school term.

VOA标准英语2011-Asia Experiences Huge Birth-Rate Decline

Approximately 6.6 billion people populate the earth today, with an estimated 3.7 billion living in Asia. But over the past 50 years, economic and social modernization in the region has been accompanied by a remarkable drop in birth rates. Sociologist

Working Shifts Can Harm Women's Fertility

Schools in north China's Shanxi Province have been banned from organizing overseas study tours for profit after a plane crash killed two Chinese girls in San Francisco. The provincial education department announced the ban in a statement issued on Tu

VOA常速英语2013--字母不再用来表示成绩了

C Isnt Average in All Schools Any More 字母不再用来表示成绩了 Theres an old, but often-played, song by the late Sam Cooke whose lyrics go, in part: 已故的山姆库克有首老歌经常有人表演，它的部分歌词是这样的： Now

U.S.jobless claims up sharply last week

WASHINGTON, Jan. 27 (Xinhua) -- The number of Americans initially applying for unemployment aid last week rose by 51,000 from the previous（以前的） week, the U.S. Labor Department reported Thursday. The Labor Department said that the advance fi

优秀专四作文范文:mobile phones

Study the following graph carefully and write an essay in which you should 1) analyze the graph, and 2) give your comments on the trend. In recent years there has been a dramatic rise in the cell phones, which are now essential to millions of people

口语素材：复活节的各种特别事物

Egg The star of Easterpainted, dyed, gilded in silver and gold, blown empty and hung on trees--is the egg. Legends abound about this symbol of life. Around the world they are brought to church, given as gifts, hidden for the benefit of children and e

那些离死神越来越近的坏习惯

You might think that just one cigarette 'can't hurt'. But it could in fact cost a smoker almost 14 minutes of their life, according to new calculations. A new website has worked out how much time a smoker, alcoholic or a drug addict will lose, each t

英语听力精选进阶版 6322

What is a fair wage? Why aren't more people in the world offered pay equality? These are some of the questions the United Nations International Labour Organisation (ILO) has recently investigated. With a global population of over seven billion, is it