SSS 2008-11-12
时间：2019-01-08 作者：英语课 分类：Scientific American(十一)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.
They say that the best offense 1 is a good defense 2. And the best defense might be the most offensive. Take, for example, the barfing caterpillars 4 of the beet 5 armyworm moth 6. When threatened by marauding fire ants, these caterpillars regurgitate on their foes 7, rendering 8 them less able to put up a fight. But what’s so debilitating 9 about a little caterpillar 3 puke? Scientists used to think that bugs 10 that protect themselves by projectile 11 vomiting 12 were taking advantage of chemicals they borrowed from the plants they eat—essentially spitting plant toxins 13 at their enemies. But the beet armyworm will eat almost anything, from cauliflower to corn, and most of those plants don’t produce anything that can be weaponized.
Instead, scientists have found that these caterpillars upchuck a fluid that’s chock full of surfactants: chemicals that help make liquids easier to spread. The enhanced spreadability allows the spit-up to ooze 14 over the surface of an unsuspecting ant, who then has to stop to clean the stuff off while the caterpillar makes his escape. The results were published by the Royal Society on November 5th. Some pesticides 15 rely on surfactants to protect crops. So biotech companies might look to the caterpillar when they need some fresh ideas to throw up on the board.
Thanks for the minute for Scientific American's 60-Second Science. I'm Karen Hopkin.
- I hope you will not take any offense at my words. 对我讲的话请别见怪。
- His words gave great offense to everybody present.他的发言冲犯了在场的所有人。
- The accused has the right to defense.被告人有权获得辩护。
- The war has impacted the area with military and defense workers.战争使那个地区挤满了军队和防御工程人员。
- A butterfly is produced by metamorphosis from a caterpillar.蝴蝶是由毛虫脱胎变成的。
- A caterpillar must pass through the cocoon stage to become a butterfly.毛毛虫必须经过茧的阶段才能变成蝴蝶。
- Caterpillars eat the young leaves of this plant. 毛毛虫吃这种植物的嫩叶。
- Caterpillars change into butterflies or moths. 毛虫能变成蝴蝶或蛾子。 来自辞典例句
- He farmed his pickers to work in the beet fields. 他出租他的摘棉工去甜菜地里干活。
- The sugar beet is an entirely different kind of plant.糖用甜菜是一种完全不同的作物。
- A moth was fluttering round the lamp.有一只蛾子扑打着翅膀绕着灯飞。
- The sweater is moth-eaten.毛衣让蛀虫咬坏了。
- They steadily pushed their foes before them. 他们不停地追击敌人。
- She had fought many battles, vanquished many foes. 她身经百战，挫败过很多对手。
- She gave a splendid rendering of Beethoven's piano sonata.她精彩地演奏了贝多芬的钢琴奏鸣曲。
- His narrative is a super rendering of dialect speech and idiom.他的叙述是方言和土语最成功的运用。
- The debilitating disease made him too weak to work. 这个令他衰弱的病，使他弱到没有办法工作。
- You may soon leave one debilitating condition or relationship forever. 你即将永远地和这段霉运说拜拜了。
- All programs have bugs and need endless refinement. 所有的程序都有漏洞，都需要不断改进。 来自《简明英汉词典》
- The sacks of rice were swarming with bugs. 一袋袋的米里长满了虫子。 来自《简明英汉词典》
- The vertical and horizontal motions of a projectile can be treated independently.抛射体的竖直方向和水平方向的运动能够分开来处理。
- Have you altered the plans of the projectile as the telegram suggests?你已经按照电报的要求修改炮弹图样了吗?
- Symptoms include diarrhoea and vomiting. 症状有腹泻和呕吐。
- Especially when I feel seasick, I can't stand watching someone else vomiting." 尤其晕船的时候，看不得人家呕。”
- The seas have been used as a receptacle for a range of industrial toxins. 海洋成了各种有毒工业废料的大容器。
- Most toxins are naturally excreted from the body. 大部分毒素被自然排出体外。 来自《简明英汉词典》
- Soon layer of oceanic ooze began to accumulate above the old hard layer.不久后海洋软泥层开始在老的硬地层上堆积。
- Drip or ooze systems are common for pot watering.滴灌和渗灌系统一般也用于盆栽灌水。
- vegetables grown without the use of pesticides 未用杀虫剂种植的蔬菜
- There is a lot of concern over the amount of herbicides and pesticides used in farming. 人们对农业上灭草剂和杀虫剂的用量非常担忧。 来自《简明英汉词典》