SSS 2011-05-04
时间：2019-01-08 作者：英语课 分类：Scientific American(五)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.
Parents wring 1 their hands over infant sleep patterns. And so when those patterns change, parents tend to panic. But if your baby is sleeping more or napping at weird 2 times, maybe he or she is just growing. So says a study in the journal Sleep.
It's known that levels of growth hormone 3 rise during certain stages of sleep. So researchers wanted to know more about the link between sleep and growth. They recruited the parents of 23 infants. The parents took careful real-time notes on infant sleep patterns for between four and 17 months. They also noted 4 whether the babies were breast- or bottle-fed, and whether they had signs of illness such as rashes or diarrhea. And the babies' body length and weight were measured regularly.
The researchers found that periods where infants slept more overall corresponded with growth spurts 5 and also a gain in weight and body fat. Both genders 6 experienced that correlation 7, though boys had more and shorter sleep episodes than girls. The scientists note that increases in sleep may lead to increases in waking, as growing bones produce growing pains. So if your baby's sleeping a little funny, maybe she's just growing up.
"Rock a bye baby, on the tree top."
Thanks for the minute. For Scientific American's 60-Second Science, I'm Cynthia Graber.
"When the wind blows, the cradle will rock.Rock,rock,rock a bye baby."
- My socks were so wet that I had to wring them.我的袜子很湿，我不得不拧干它们。
- I'll wring your neck if you don't behave!你要是不规矩，我就拧断你的脖子。
- From his weird behaviour,he seems a bit of an oddity.从他不寻常的行为看来，他好像有点怪。
- His weird clothes really gas me.他的怪衣裳简直笑死人。
- Hormone implants are used as growth boosters.激素植入物被用作生长辅助剂。
- This hormone interacts closely with other hormones in the body.这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
- 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。
- Great spurts of gas shoot out of the sun. 太阳气体射出形成大爆发。
- Spurts of warm rain blew fitfully against their faces. 阵阵温热的雨点拍打在他们脸上。
- There are three genders in German: masculine, feminine and neuter. 德语中有叁性：阳性、阴性和中性。 来自辞典例句
- Japan was fourth among the genders of foreign students. 日本在二十个留美学生输送地中列第四位。 来自互联网
- The second group of measurements had a high correlation with the first.第二组测量数据与第一组高度相关。
- A high correlation exists in America between education and economic position.教育和经济地位在美国有极密切的关系。