新东方优美背诵短文50篇 Unit48:Bacteria

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are u

新东方背诵文选 L48 Bacteria

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is abo

创新英语-Shopping Carts Covered in Bacteria

A new study into the hygiene of supermarkets has found that shopping carts are dirtier than the stores bathrooms. Microbiologist Dr Charles Gerba of the University of Arizona conducted research on the handles of 85 carts in four American states. He r

VOA标准英语2013--In Islamabad, Mixed Reactions to Musharraf Return

In Islamabad, Mixed Reactions to Musharraf Return On the streets of Pakistan's capital, reactions to former military president Pervez Musharraf's return to the country's political scene are mixed. For residents like Azim Ehsan Qazi, the possibility t

美国习惯用语:837 a mixed bag

我姐姐刚在一个高尚社区买了房子，那里住的都是医生、律师这一类的高薪单身贵族，跟我住的地方截然不同。我们这里有单身汉、有年轻父母、有双职工、也有不上班的专职妈妈;有白领，也

SSS 2008-09-23

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Sometimes a bit of bacteria can be just what the doctor ordered. If you prize yogurt for its active cultures, you know what Im talking about. Now a new s

SSS 2010-03-16

They say that who you hang out with says a lot about who you are. Well, the microbes that hang out on your fingers can point to exactly who you are. Because scientists at the University of Colorado in Boulder have been able to identify individuals ba

英语语法：72 Mixed Metaphors

Grammar Girl here. Today's topic is mixed metaphors. Politicians often provide good fodder for language commentary, and one of Barack Obama's comments during the debates has been rattling around in my head for a while now. He made a comment that some

VOA慢速英语2010年-Health Report - New Test Could Speed T

This is the VOA Special English Health Report. Tuberculosis killed one million three hundred thousand people around the world in two thousand seven. In addition, almost half a million people who were infected with tuberculosis and with H.I.V. also di

VOA标准英语2011--Libyan Conflict Brings Out Mixed Emotion

Libyan Conflict Brings Out Mixed Emotions in Rebel Hub Rebels in Libya continue to battle forces loyal to leader Moammar Gadhafi for control of the country. Many in the rebel hub of Benghazi have mixed emotions about the conflict. Scott Bobb reports

VOA常速英语2008年-Antibiotic-Resistant Bacteria Poses Threat to P

By Ruth Reader Washington, DC 13 February 2008 There is growing concern around the world over illnesses caused by new antibiotic-resistant bacteria, or so-called superbugs, and the decreasing effectiveness of antibiotics to treat infections. Earlier

VOA标准英语2010年-America's Mixed-Race Kids Examine Thei

At least seven million Americans identify themselves as belonging to more than one race, and interest is rapidly growing in issues of multi-racial identity. In his new book, Mixed, writer and artist Kip Fulbeck presents a collection of portraits cele

VOA慢速英语2011--Gut Bacteria: We Are What We Eat

HealthReport-GutBacteria:WeAreWhatWeEat This is the VOA Special English Health Report. The human digestive system is full of bacteria -- mostly good bacteria. These organisms help break down food so the body can use the nutrients. Scientists are expl

Experts: Let Produce Dry Out to Avoid Bacteria

Experts: Let Produce Dry Out to Avoid Bacteria American researchers say farmers should wait one day after a rain storm or watering their fields to harvest fresh fruits and vegetables. They say gathering the crops at least 24 hours after rainfall incr

VOA标准英语2011--E coli: Good Bacteria Gone Bad

E coli: Good Bacteria Gone Bad As a major outbreak of a highly toxic strain of E. coli bacteria continues to sicken residents of Europe, medical experts are racing to find the source. E. coli doesn't usually cause any trouble, says University of Minn

VOA常速英语2007年-Mixed Reactions Voiced by Israelis and Palestin

By Jim Teeple Jerusalem/Ramallah 28 November 2007 There has been a mixed reaction in Israel and the Palestinian territories to the Annapolis Mideast peace conference. VOA's Jim Teeple spoke with Palestinians in the West Bank city of Ramallah, and wit

VOA常速英语2008年-IMF Gives Afghanistan Mixed Economic Review

By Barry Wood Washington 20 February 2008 The International Monetary Fund Wednesday gave Afghanistan a mixed economic report card, saying the country's overall reforms are on track but corruption and a dramatic rise in opium production pose significa

Death Toll Rises From Deadly European Bacteria

European and World Health Organization scientists say a deadly outbreak of E. coli bacteria that has killed 18 people is a rare and virulent(致命的) strain of the bacteria. The latest victim died Wednesday night in Germany. The United Nations agen

Using bacteria to generate energy hopeful

BEIJING, May 24 (Xinhuanet) -- Scientists revealed for the first time the molecular structure of proteins, which enables bacteria to transfer electrical charges, according to a new study. The revelation was published in Proceedings of the National Ac

双语有声阅读：Bacteria

48 Bacteria Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bac