英语听力：自然百科 危险的海洋黏液状物质
时间：2019-01-22 作者：英语课 分类：自然百科2009年
英语课
It resembles the blob from science fiction stories, but it's very real. These jell-like sheets of disease-carrying mucus are spreading across portions of the Mediterranean 1 and Adriatic Sea, where this video was taken.
This stringy mass is known as marine 2 mucilage. They're visible on the surface of the water as well, creating a sudsy look in the sea. It's not one organism, but a congregation of organic matter joined together. The mucilage begins as a cluster of mostly microscopic 3 dead and living matter, and over time, picks up others looking for food or safety. Only some of the animals are visible to the human eye, such as small shrimp 4 and crustaceans 5. These blobs have been known to exist at least since 1729, but a recent study found a link between mucilage outbreaks and warmer sea temperatures.
Study leader Roberto Danovaro, from the Polytechnic 6 University of Marche in Italy, says there’s concern because the blobs attract bacteria and viruses, including E-coli. That would make the blobs harmful to swimmers, and an E-coli presence can force closure of beaches. The bacteria can be deadly to fish and other living organisms in the water. And the noxious 7 mass also traps animals, be coating their gills and suffocating 8 them.
Danovaro says the mucilages are largest in the summer months. His study found that the number of mucilage outbreaks increased almost exponentially in the last 20 years in the Mediterranean. He cautions that it's a good example of what can happen if climate warming continues.
The biggest blobs can sink to the seafloor, acting 9 like a blanket and smothering 10 life at the bottom.
adj.地中海的；地中海沿岸的
- The houses are Mediterranean in character.这些房子都属地中海风格。
- Gibraltar is the key to the Mediterranean.直布罗陀是地中海的要冲。
adj.海的；海生的；航海的；海事的；n.水兵
- Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
- When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。
adj.微小的，细微的，极小的，显微的
- It's impossible to read his microscopic handwriting.不可能看清他那极小的书写字迹。
- A plant's lungs are the microscopic pores in its leaves.植物的肺就是其叶片上微细的气孔。
n.虾，小虾；矮小的人
- When the shrimp farm is built it will block the stream.一旦养虾场建起来，将会截断这条河流。
- When it comes to seafood,I like shrimp the best.说到海鲜，我最喜欢虾。
n.甲壳纲动物（如蟹、龙虾）( crustacean的名词复数 )
- These crustaceans provide a valuable food source for some fish. 这些甲壳纲动物是某些鱼类重要的食物来源。 来自《简明英汉词典》
- When the tide ebbs it's a rock pool inhabited by crustaceans. 退潮时，它便成为甲壳动物居住的岩石区潮水潭。 来自辞典例句
adj.各种工艺的，综合技术的；n.工艺(专科)学校；理工(专科)学校
- She was trained as a teacher at Manchester Polytechnic.她在曼彻斯特工艺专科学校就读，准备毕业后做老师。
- When he was 17,Einstein entered the Polytechnic Zurich,Switzerland,where he studied mathematics and physics.17岁时，爱因斯坦进入了瑞士苏黎士的专科学院，学习数学和物理学。
adj.有害的，有毒的；使道德败坏的，讨厌的
- Heavy industry pollutes our rivers with noxious chemicals.重工业产生的有毒化学品会污染我们的河流。
- Many household products give off noxious fumes.很多家用产品散发有害气体。
a.使人窒息的
- After a few weeks with her parents, she felt she was suffocating.和父母呆了几个星期后，她感到自己毫无自由。
- That's better. I was suffocating in that cell of a room.这样好些了，我刚才在那个小房间里快闷死了。
n.演戏，行为，假装；adj.代理的，临时的，演出用的
- Ignore her,she's just acting.别理她，她只是假装的。
- During the seventies,her acting career was in eclipse.在七十年代，她的表演生涯黯然失色。
（使）窒息， （使）透不过气( smother的现在分词 )； 覆盖； 忍住； 抑制
- He laughed triumphantly, and silenced her by manly smothering. 他胜利地微笑着，以男人咄咄逼人的气势使她哑口无言。
- He wrapped the coat around her head, smothering the flames. 他用上衣包住她的头，熄灭了火。