美国科学60秒 SSS 2013-02-14
时间：2019-01-20 作者：英语课 分类：Scientific American(二)月
School are well known reservoir of contagion 1, where students share all sorts of communicable conditions, coughs, cold, flu, you name it. But gems 2 are the only things kids can catch from their friends. If they are lucky, they could come down with 4.0. Because a new study shows that high schoolers whose friends get higher marks tend to raise their own grade averages over time. The findings are in the journal Plus 1. That our social circles influence us is not news. For example, studies have shown that the fatter your friends, the more likely you are also overweight. In the grade point study, researchers took the classroom to see whether academic achievement might as contagious 3 as obesity 4. They asked 158 eleven graders to go down the class roster 5 and point out their pals 6. And they checked everyone's report card, at the time of survey and again a year later. The researchers found that those students whose friends were outshining academically, tend to improve their grades over the year. While those who were hanging out with academic under-achievers, let their grades slid. So go ahead, be friend with brainier. You might just learn something.
- A contagion of fear swept through the crowd.一种恐惧感在人群中迅速蔓延开。
- The product contagion effect has numerous implications for marketing managers and retailers.产品传染效应对市场营销管理者和零售商都有很多的启示。
- a crown studded with gems 镶有宝石的皇冠
- The apt citations and poetic gems have adorned his speeches. 贴切的引语和珠玑般的诗句为他的演说词增添文采。
- It's a highly contagious infection.这种病极易传染。
- He's got a contagious laugh.他的笑富有感染力。
- One effect of overeating may be obesity.吃得过多能导致肥胖。
- Sugar and fat can more easily lead to obesity than some other foods.糖和脂肪比其他食物更容易导致肥胖。
- The teacher checked the roster to see whom he would teach this year.老师查看花名册，想了解今年要教的学生。
- The next day he put himself first on the new roster for domestic chores.第二天，他把自己排在了新的家务值日表的第一位。