美国科学60秒-SSS 2015-06-15
时间：2018-12-24 作者：英语课 分类：2015年Scientific American(六)月
A common response to seeing an ant in your house is to stamp on it. But if you crush a member of the ant species? , you might catch a hwiff of strange smell, a smell that reminds some people of blue cheese, rancid butter or rotten coconut 1. In fact the smell is so noticable that the insect's common name is the odorous house ant, and many people call it the coconut ant. In an effort to figure out why people have these reations, researchers enlisted 2 visitors at an event called the North Carolina Bug 3 Fast. One hundred and forty-three volunteers smelled smashed ants and were asked to identify the scent 4 from four choices, blue cheese, rancid butter, rotten coconut or just other. All the websites overwhelmingly call the smell rotten coconut. Almost forty percent of the human judges picked blue cheese and about twenty-five percent picked rotten coconut, more than thirty percent went with the choice of other. The scentists then analysed the chemicals responsible for the ant odor as well as the smelly chemicals in blue cheese, fresh coconut and coconut buried underground for three days. It turns out the chemistry of the ant scent is indeed similar to that of the blue cheese and rotten coconut, but not to fresh coconut. And researchers note that the penicillin microbes that turn coconut oil rancid are also involved in the production of blue cheese. The study is in the journal America Entomologist. The researchers also noted 5 that the most common right candidate as a prescription 6 for the ants' aroma 7 was cleaning spray, and one little girl told them that the ants, " smelled exactly like her doctor."
- The husk of this coconut is particularly strong.椰子的外壳很明显非常坚固。
- The falling coconut gave him a terrific bang on the head.那只掉下的椰子砰地击中他的脑袋。
- enlisted men and women 男兵和女兵
- He enlisted with the air force to fight against the enemy. 他应募加入空军对敌作战。 来自《现代汉英综合大词典》
- There is a bug in the system.系统出了故障。
- The bird caught a bug on the fly.那鸟在飞行中捉住了一只昆虫。
- The air was filled with the scent of lilac.空气中弥漫着丁香花的芬芳。
- The flowers give off a heady scent at night.这些花晚上散发出醉人的芳香。
- The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。
- Jim is noted for arriving late for work.吉姆上班迟到出了名。
- The physician made a prescription against sea- sickness for him.医生给他开了个治晕船的药方。
- The drug is available on prescription only.这种药只能凭处方购买。