【英语时差8,16】大喙降温
时间：2018-12-27 作者：英语课 分类：英语时差8，16
Big Bill Chill When people get hot, we sweat. When dogs overheat, they pant. And birds? At least one type–the Toco toucan 1–uses its oversized bill to cool down. Even if you’re never seen a live toucan up close, you might be able to picture its huge, multi-colored beak 2. And you may have wondered…why such a long bill? One study has found that when toucans 3 are too hot, they use their bill to dump heat and cool off. To test this hypothesis, researchers observed toucans in a chamber 4 where the temperature gradually rose by eighteen degrees Fahrenheit 5. Using thermal 6 imaging, they saw that the hotter the chamber got, the more the birds’ bills warmed up. And as the bills warmed, other parts of the toucans’ bodies either grew cooler or stayed the same. This suggests that toucans channel heat from their bodies to their beaks 7, which then dump the heat into the surrounding air. Now, a toucan’s bill also serves other purposes, such as picking tropical fruit. But this research shows that, whatever else it might be good for, a toucan’s beak helps it chill out. So is the same true for other birds? Maybe. That’s what scientists are now hoping to discover.
- A toucan is a South American bird.巨嘴鸟是北美的一种鸟。
- There is a toucan in this zoo.这个动物园有一只巨嘴鸟。
- The bird had a worm in its beak.鸟儿嘴里叼着一条虫。
- This bird employs its beak as a weapon.这种鸟用嘴作武器。
- Against it, parakeets and toucans and blue-winged macaws swoop. 晨光下，小鹦鹉、巨嘴鸟和翅膀鲜蓝的金刚鹦鹉展翼翱翔。 来自互联网
- Toucans also have a narrow, feather-like tongue. 巨嘴鸟也有狭窄部份，像羽毛一样的舌。 来自互联网
- For many,the dentist's surgery remains a torture chamber.对许多人来说，牙医的治疗室一直是间受刑室。
- The chamber was ablaze with light.会议厅里灯火辉煌。
- He was asked for the boiling point of water in Fahrenheit.他被问到水的沸点是华氏多少度。
- The thermometer reads 80 degrees Fahrenheit.寒暑表指出华氏80度。