SSS 2008-11-26
时间：2018-12-24 作者：英语课 分类：Scientific American(十一)月
Darwin's fabled 1 isles 2, the Galapagos, are in need of a makeover. And removing invasive species of plants tops the to-do list for the islands’ restoration. But six species that were set to be exterminated 3 have gotten a reprieve 4. Because a new study finds that they’re actually natives.
The species were all thought to have been brought to the Galapagos by European travelers 500 years ago. But, by examining fossilized pollen 5 and other plant remains 6, an international group of scientists found traces of each species dating back many thousands of years. Their discovery is reported in the November 21st issue of the journal Science.
Since millions of dollars are spent worldwide each year in battles against invasive plants, the researchers say that conservationists need to step back and reconsider what really belongs. Such deliberation is especially true in areas with high biodiversity, where thousands of different species can make an accurate ecological 7 history hard to come by. That means paleobotanical input—the consideration of plant fossils—could play an important role in future eco-restorations. Because those who don't know history are doomed 8 to replant it.
Thanks for the minute for Scientific American's 60-Second Science. I'm Adam Hinterthuer.
- For the first week he never actually saw the fabled Jack. 第一周他实际上从没见到传说中的杰克。
- Aphrodite, the Greek goddness of love, is fabled to have been born of the foam of the sea. 希腊爱神阿美罗狄蒂据说是诞生于海浪泡沫之中。 来自《现代汉英综合大词典》
- the geology of the British Isles 不列颠群岛的地质
- The boat left for the isles. 小船驶向那些小岛。
- It was exterminated root and branch. 它被彻底剪除了。 来自《现代汉英综合大词典》
- The insects can be exterminated by spraying DDT. 可以用喷撒滴滴涕的方法大量杀死这种昆虫。 来自《用法词典》
- He was saved from the gallows by a lastminute reprieve.最后一刻的缓刑令把他从绞架上解救了下来。
- The railway line, due for closure, has been granted a six-month reprieve.本应停运的铁路线获准多运行6 个月。
- Hummingbirds have discovered that nectar and pollen are very nutritious.蜂鸟发现花蜜和花粉是很有营养的。
- He developed an allergy to pollen.他对花粉过敏。
- He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
- The remains of the meal were fed to the dog.残羹剩饭喂狗了。
- The region has been declared an ecological disaster zone.这个地区已经宣布为生态灾难区。
- Each animal has its ecological niche.每种动物都有自己的生态位.