SSS 2012-07-17
时间：2019-01-08 作者：英语课 分类：Scientific American(七)月
英语课
This is Scientific American -60 seconds science. I’m Cynthia Graber. This will just take a minute.
A coal mine can degrade its local environment. But fungus 1 may inadvertently help clean up the mine with its own waste products. Researchers worked with the fungus called Silbela Axiculosa. As it makes spores 2, it also produces superoxide. That’s a highly reactive kind of oxygen. When the released superoxide bumps into the mineral manganese in the environment, it makes that mine much more reactive itself. The pepped-up manganese then grabs and holds a variety of toxic 3 medals and other substances that need to be cleaned up and taken out of the coal mine drainage water. The research led by Colin Handso of Harvard and * ocean and graphic 4 institution appears in the proceedings 5 of the national academy of sciences. It’s been know that various bacteria and fungi 6 can help in environmental remediation. The new research shows that production of the vital forms of manganese requires that fungi and bacteria be actively 7 produce superoxide. So creating conditions that encourages the organism to create the superoxide could be the first step in the pathway by which they help the manganese to literally 8 do the dirty work, and make some toxic sites a lot cleaner.
n.真菌，真菌类植物
- Mushrooms are a type of fungus.蘑菇是一种真菌。
- This fungus can just be detected by the unaided eye.这种真菌只用肉眼就能检查出。
n.（细菌、苔藓、蕨类植物）孢子( spore的名词复数 )v.（细菌、苔藓、蕨类植物）孢子( spore的第三人称单数 )
- Ferns, mosses and fungi spread by means of spores. 蕨类植物、苔藓和真菌通过孢子传播蔓生。
- Spores form a lipid membrane during the process of reproducing. 孢于在生殖过程中形成类脂膜。 来自英汉非文学 - 生命科学 - 预防生物武器
adj.有毒的，因中毒引起的
- The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。
- There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。
adj.生动的，形象的，绘画的，文字的，图表的
- The book gave a graphic description of the war.这本书生动地描述了战争的情况。
- Distinguish important text items in lists with graphic icons.用图标来区分重要的文本项。
n.进程，过程，议程；诉讼(程序)；公报
- He was released on bail pending committal proceedings. 他交保获释正在候审。
- to initiate legal proceedings against sb 对某人提起诉讼
n.真菌，霉菌
- Students practice to apply the study of genetics to multicellular plants and fungi.学生们练习把基因学应用到多细胞植物和真菌中。
- The lawn was covered with fungi.草地上到处都是蘑菇。
adv.积极地，勤奋地
- During this period all the students were actively participating.在这节课中所有的学生都积极参加。
- We are actively intervening to settle a quarrel.我们正在积极调解争执。