托福听力课外资料练习：科学美国人60秒老鼠变胖相关内容分享

在托福听力考试的备考过程中，科学美国人60秒相信大家一定用得比较多，那么大家平时是如何利用这个课外资料的呢?这里小编整理了科学美国人60秒：老鼠变胖相关的内容分享，大家一起来学习一下吧。

科学美国人60秒听力练习：老鼠变胖

研究表明，在晚上给老鼠给光照，老鼠会变得不那么活泼，而且会发胖。

Light at night increases mice's body mass, apparently by shifting food intake to times when the animals are less active. Karen Hopkin reportsYou’ve tried everything to lose weight: portion control, fasting, liquid diets, even eating meals on a treadmill. Now, a new study suggests that maybe you should try turning out the lights. Because, at least in mice, exposure to light at night leads to weight gain. The work appears in the Proceedings of the National Academy of Sciences. [Laura Fonken et al., "Light at Night Increases Body Mass by Shifting the Time of Food Intake"]

Obesity is an epidemic. Maybe it’s because we eat too much and spend too much time in our seats. But another factor could be that these days we’re never really in the dark. Streetlamps and indoor light sources now brighten our nights. And that light pollution could be messing with our circadian rhythms, which control not only sleep, but metabolism. In fact, mutant mice that have no circadian clocks tend to be chunky.

To test the connection between photons and fat, scientists took mice and lit up their cages. And they found that mice that were exposed to even dim light at night were chubbier than mice who spent their evenings in the dark. Though they all ate the same amount, the fat mice snacked more when they were less active, perhaps failing to burn off those calories.

So maybe skip the night light. Especially the one that lights up when you open up the fridge.

科学美国人60秒中文翻译：

1. portion n. 部分, 份, 命运, 分担的责任

2. treadmill n.踏车，单调乏味的工作

3. obesity n. 肥胖, 肥大

4. mess v. 供给食物, 把 ... 弄乱

5. circadian adj. [生]昼夜节律的, 生理节奏的

6. metabolism n. 新陈代谢

7. chunky a.(人或动物)矮胖的

8. chubby a.丰满的，圆胖的

9. photons n. 光子, 光量子 名词photon的复数形式

10. fridge n. 电冰箱

以上就是小编为大家整理的科学美国人60秒：老鼠变胖的文本以及翻译，大家练习的时候还可以找来音频资料一起练习，效果定会更好。最后，小编预祝大家托福考试能取得理想的成绩。

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