卫生指标[细]菌

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

发表于:2018-12-01 / 阅读(141) / 评论(0)

新东方背诵文选

VOA标准英语2010年-WHO: Risk of Epidemics in Haiti Increa

World Health Organization says people are at great risk of getting diarrhea, cholera and other water borne diseases because of the bad sanitary conditions and contaminated water. Lisa Schlein | Geneva 30 January 2010 A camp of makeshift tents sprawls

发表于:2018-12-08 / 阅读(54) / 评论(0)

VOA标准英语2010年(一月)

[科学美国人60秒] SSS 2015-09-22

The dust that accumulates in the corners of your house does more than cause allergies and aggravations. It's also teeming with clues about where you live and who you live with. That's the finding ofa study in the Proceedings of Royal Society B. Resea

发表于:2018-12-24 / 阅读(24) / 评论(0)

2015年Scientific American(九)月

英语听力：自然百科佛罗里达州的温泉（二）

The divers started in the ocean, but they are now within solid bedrock, 150 feet beneath someone's living room. They are now swimming in the water supply for the town above. Here they find, as they had hoped, life in the pitch darkness. These are hyd

发表于:2018-12-26 / 阅读(42) / 评论(0)

自然百科2009年

实境旅游英语第74期:购物逛超市(3)

Part 3 Useful Expressions 第三部分常用表达 1.Is there a supermarket around here? 1.这附近有没有超市？ 2.What time do you close? 2.你们几点打烊？ 3.We'd better go and get a shopping cart. 3.我们还是去推一辆推车吧。

发表于:2018-12-29 / 阅读(42) / 评论(0)

实境旅游英语

VOA常速英语2016--胡须上的细菌帮助发现新抗生素

胡须上的细菌帮助发现新抗生素 Widespread use of antibiotics for conditions that don't require them has spurred mutations in bacteria strains, turning them into so-called superbugs. 抗生素的滥用引发细菌产生变异，成为所谓的

发表于:2019-01-14 / 阅读(23) / 评论(0)

VOA标准英语2016年(二月)

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