W: The air in the city is seriously polluted. M: Yes. I cant even breathe. W: Air pollution endangers our health. M: The government should take steps to solve it. Dialogue 2. W: I cant bear the noise near my house any more. M: Why? Is it that bad? W:

发表于:2018-12-02 / 阅读(60) / 评论(0) 分类 流利美国口语

Legionnaires' Disease 1 Legionnaires' disease is a serious and sometimes fatal form of pneumonia 2 . Legionnaires' disease is caused by infection with Legionella bacteria which are found naturally in

发表于:2018-12-05 / 阅读(164) / 评论(0) 分类 英语沙龙2004全年合辑上

Here are some Thanksgiving tips from food safety expert Ben Chapman, at North Carolina State University. First, do not wash the turkey. The water splashing off of poultry can toss bacteria around your entire food preparation area. Which is how Aunt S

发表于:2018-12-24 / 阅读(50) / 评论(0) 分类 Scientific American(十一)月

Each of us harbors a unique collection of bacteria, on our outsides and our insides. Now, scientists are finding that the bacteria you get at birth may depend on how you got here. Because babies born vaginally have a different set of microbes than th

发表于:2018-12-24 / 阅读(41) / 评论(0) 分类 Scientific American(六)月

【Transcript】 Rules for using cell phone A: Have you read the new rules about using cell phone at work? B: Yes, not bad. Like turn your cell phone ringer off and find a private place to make calls which its showing your respect to your co-workers.

发表于:2018-12-26 / 阅读(60) / 评论(0) 分类 白领快餐口语

With that in mind, and working with the St Augustine Alligator Farm Zoological Park in Florida, Dr Bishop obtained fresh Komodo dragon blood. 有了这种想法,Bishop博士和弗罗里达圣奥古斯丁的短吻鳄农场动物园合作,获得了新

发表于:2019-01-25 / 阅读(38) / 评论(0) 分类 经济学人科技系列

DEVELOPMENT REPORT - Simple Ways to Keep Food Cool By Bob Bowen Broadcast: Monday, September 05, 2005 I'm Faith Lapidus with the VOA Special English Development Report. Bacteria can make foods go bad.

发表于:2019-01-30 / 阅读(38) / 评论(0) 分类 农业与发展

一次大战期间,由于第一次动用了artillery(炮的总称, 炮兵的总称)和armada,每次assail/assault之后总会有很多士兵受伤。尽管使用astringent可以使他们止血,但很快伤口就会出现arcane(神秘的, 不可思

发表于:2019-02-01 / 阅读(32) / 评论(0) 分类 GRE英语

BEIJING, Oct. 13 (Xinhuanet) -- Scientists have decoded the genome of Black Death which caused one of the worst plagues in human history. The finding was published Wednesday in the scientific journal Nature. A team of German, Canadian and American sc

发表于:2019-02-07 / 阅读(76) / 评论(0) 分类 英语新闻

There is nothing as romantic as two lovers sharing a kiss. 恋人之间相互接吻是一件多么美妙浪漫的事情啊。 But scientists have come up with an evolutionary explanation which perhaps threatens to kill the passion. 但是科学家们最

发表于:2019-02-07 / 阅读(38) / 评论(0) 分类 英语新闻

In the early days, this was an exceedingly painstaking process. 早年,这是个极费力气的过程。 Work on a single bacterium could easily consume a year. 研究一个细菌就可能一下子花掉一年时间。 At that time, according to Wo

发表于:2019-02-17 / 阅读(30) / 评论(0) 分类 万物简史

Precisely the same thing happens with meningitis. 脑膜炎的情况完全一样。 At least 10 percent of young adults, and perhaps 30 percent of teenagers, carry the deadly meningococcal bacterium, 至少有10%的年轻人和也许30%的少年携带着

发表于:2019-02-17 / 阅读(25) / 评论(0) 分类 万物简史

With this ability to evolve rapidly goes another, even scarier advantage. 有了这种能力,另一种更加吓人的优势会很快产生。 Bacteria share information. Any bacterium can take pieces of genetic coding from any other. 细菌能共享信

发表于:2019-02-17 / 阅读(23) / 评论(0) 分类 万物简史

In 1997 scientists successfully activated some anthrax spores that had lain dormant for eighty years in a museum display in Trondheim, Norway. 1997年,科学家们成功地激活了已经在挪威特隆赫姆博物馆休眠了80年之久的一些炭疽

发表于:2019-02-17 / 阅读(46) / 评论(0) 分类 万物简史

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 bacter

发表于:2019-02-17 / 阅读(68) / 评论(0) 分类 双语有声阅读

The space lecture featured a QA session towards the end. Students questions ranged from what space looks like from Tiangong-1 to what problems the human body has faces in space. One of the students asked if the astronauts can see space junk and how S

发表于:2019-02-18 / 阅读(181) / 评论(0) 分类 CCTV9英语新闻2013年07月

释义: get somebody (sth) back 拿回,找回 get sb (sth) back 表示重新找回某物,是拿回,找回的意思。另外,get back to+后面如果加地点的话就会变成回到。 例句: She wants to get her boyfriend back. 她想找回

发表于:2019-02-19 / 阅读(15) / 评论(0) 分类 老外最常用的英文短语

释义: turn and 转身做某事 turn 最基本的含义为转身等转变方向的行为。因此 turn and (to) +动词表示转身做某事。 例句: He turned to leave, then turned back suddenly. 他转身离开,随后突然又转过身来。

发表于:2019-02-19 / 阅读(36) / 评论(0) 分类 老外最常用的英文短语

For many scientists, a species success is measured by sheer numbers. In that case, the most successful species known to man is a type of bacterium known as S-A-R-11, or SAR-11 for short. Scientists estimate that there are two-hundred and forty times

发表于:2019-03-06 / 阅读(182) / 评论(0) 分类 英语时差8,16

arms n.武器(恒用复数);怀(恒用复数) After three rounds of arms talks, both countries reached an agreement. 经过3回合的限武谈判后,两国终于达成协议。 John held his girlfriend in his arms, gently kissing her. 约翰

发表于:2019-03-17 / 阅读(291) / 评论(0) 分类 赖世雄进阶英语词汇3500