事实：怎样命名一只章鱼-How To Name An Octopus

Pre-Listening Vocabulary binomial nomenclature: a two-part system for naming species (e.g., Panthera tigris) genus: a subdivision of a family of organisms (e.g., Panthera is the genus for tigers, lions and leopards, and a subdivision of the Felidae f

英语听力：自然百科 野性俄罗斯之西伯利亚 Siberia—12

After spending a year or so as larvae under water, they transform into winged adults and take to the skies. The millions of tiny flies attract far bigger animals. As they hold a mass mating orgy along the banks of the lake, brown bears come to feed o

英文书摘精选 果蝇喜欢酒精

Fruit Flies Love Alcohol! 果蝇喜欢酒精！ When human females are pregnant, theyre advised to stay away from alcohol, for fear of harming the fetus. And most parents refrain from giving their infants bottles full of whiskey or beer, for obvious

未来水环境让现有鱼类很难生存(有声)

Fish raised in the more acidic seawater that would result from higher carbon dioxide levels forget to flee predators. More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the grow

Asian Lady Beetle

By Mario Ritter Broadcast: November 4, 2003 This is Steve Ember with the VOA Special English Agriculture Report. There are lots of insects that farmers hate. But there also are some they like. These p

VOA常速英语2013--及早杀灭蚊虫预防疟疾

Killing Mosquitoes Early On及早杀灭蚊虫预防疟疾 Targeting mosquitoes in their early stages of life has the potential to greatly boost malaria control efforts and prevent thousands of new infections every year. A new study looks at the effec

美联社新闻一分钟 AP NEWS 2008-02-18

1. Churchgoers are remembering the victims of the Northern Illinois University shooting rampage. Members at First Baptist Church of Dekalb passed out red ribbons to several dozen people attending this mourning service. A gunman killed five students

VOA标准英语2010年-Amazon Deforestation Sparks Surge in M

Deforestation is one of the big culprits in climate change. And now a new study from the Amazon links deforestation with an increase in malaria. Despite eradication efforts, malaria remains a significant health problem in Brazil. There are around a h

英国学生科学读本第58期:毛毛虫向前爬(1)

Lesson 58 The Creeping Caterpillar 第58课 毛毛虫向前爬 All birds lay eggs. If the eggs are kept warm, after a certain time a little bird, just like the parent birds, comes out of each egg. 鸟儿都会下蛋。如果鸟蛋能保持温暖，过一

英国学生科学读本 第58期:毛毛虫向前爬(2)

Another way of getting caterpillars is to look for them on the under sides of the leaves of such plants as the nettle, the rose, and the hawthorn. You must feed these caterpillars on the leaves of the plant on which you found them; and as they are ve

英国学生科学读本第59期:美丽的蝴蝶(1)

Lesson 59 The Beautiful Butterfly 第59课 美丽的蝴蝶 What a lovely creature a butterfly is! Look at the butterflies in the picture, flying about among the blossoms. They are getting good food from the flowers, but they are doing no harm to them

美国科学60秒 SSS 2013-02-07

Adult ants communicate with pheromones, touch and even sound. Now researchers have discovered that developing ants called pupae have their own distinctive calls, which identify their social status within the colony. This finding is in the journal Cur

科学美国人60秒 SSS 2013-09-04

A baby's cries for food might drive tired parent aggravation,but some species take more drastic measures like the burying beetle,the [xxxxx] which punish it's pesky children by eating them,researches want to get to the bottom of a age-old question in

英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—7

The reef was left high and dry, exposed to air and harsh sun. A trillion tiny creatures died in their own homes. For the coral, it was an apocalypse. When the ice age ended, the sea came back and submerged the dead reef. But what brought it back to l

英语听力：自然百科 大迁徙 Great Migrations—16

Finally, they can rest. For another five months, they will cling to this winter refuge, entering a sort of waking trance of energy conservation. Until the longer days of spring awaken them again to mate and pass along to the young--their migratory im

经济学人137:烟草提取物可用于植物病虫害

Science and technology 科学和技术 Pesticides 农药 Smoking them out 把它们熏死 Tobacco extracts protect plants from pests and pathogens 烟草提取物可用于植物病虫害 THERE are, as Paracelsus put it, no poisonsonly poisonous doses

经济学人130:烟草提取物可用于植物病虫害

Science and Technology Pesticides Smoking them out 科技 农药 把它们熏死 Tobacco extracts protect plants from pests and pathogens 烟草提取物可用于植物病虫害 THERE are, as Paracelsus put it, no poisonsonly poisonous doses. That is

英语听力：Wild China 美丽中国：彩云之南-12

A hornet sting is agony, but for now its distracted, intent on cutting away a piece of grasshopper, small enough to carry back home. Success! The white feather hardly slows the hornet, and more importantly, it can be seen. Now the hunter is the hunte

留美老师带你每日说英文 第601期:水其实也不那么干净

台湾籍旅美老师今天交给我们的句子是： Water left outside can also start growing algae and host mosquito larvae, which will make you sick and is gross to think about, but not as gross as thinking about the dust inside your house landi

【英语时差8,16】吃蜘蛛的苍蝇

Come into my parlor, said the spider to the fly. At least that's usually the way it goes. In most showdowns between spiders and flies, the odds weigh heavily in the spider's favor. Today, however, we'll look at a few species of fly that manage to tur