科学美国人60秒 SSS 2014-01-06
时间：2018-12-24 作者：英语课 分类：2014年Scientific American(一)月
英语课
The warm waste environment of your mouth makes it a great place for bacteria, some of which keep busy causing cavities. Such dental difficulties were thought to a really taken-off for we switch from hunting gathering 1 to agriculture and had a ready supply of farmed fermentable 2 carbohydrates 4.
Now research shows that at least some pre-agricultural humans also had a bad case of tooth decay. The study is in the proceedings 5 of the National Academy of Sciences.
One hundred gatherers resided in Morocco called GlutoPeijohn was a key ritual and economic center. The deposits there date to some 15,000 years ago and are incredibly dry, so organic material, including bones and chart plan remains 6 are well preserved.
Researchers found leftover 7 panmites junifer, perstashio, wild oats, and particularly popular carbohydrate 3 reach icornts, eaten and raw or as flour, yicornts can sticken in teeth. The food stuff makes a happy home for acid-loving bacteria that cause cavities.
The scientists also analyzed 8 teeth from 52 partial or complete jaws 9. They found that more than half the teeth showed signs of lesion and only three of the adults were cavity-free, thousands of years before folks in the area learned to farm.
1 gathering
n.集会，聚会，聚集
- He called on Mr. White to speak at the gathering.他请怀特先生在集会上讲话。
- He is on the wing gathering material for his novels.他正忙于为他的小说收集资料。
2 fermentable
adj.可发酵的，发酵性的
- We will discuss fermentable fiber more in Part 5 of this series. 我们将会在这系列的部份5讨论沸腾的纤维更多。 来自互联网
- The conditions of fermentable and enzymatic conversion of M14 were optimized. 对高活性突变株M14的细胞转化和发酵转化条件进行优化。 来自互联网
3 carbohydrate
n.碳水化合物；糖类；(plural)淀粉质或糖类
- You should not have too much carbohydrate in your diet.你日常饮食中不该有过多碳水化合物。
- Cashew nuts are rich in carbohydrate.腰果含丰富碳水化合物。
4 carbohydrates
n.碳水化合物，糖类( carbohydrate的名词复数 )；淀粉质或糖类食物
- The plant uses the carbohydrates to make cellulose. 植物用碳水化合物制造纤维素。 来自《简明英汉词典》
- All carbohydrates originate from plants. 所有的碳水化合物均来自植物。 来自辞典例句
5 proceedings
n.进程，过程，议程；诉讼(程序)；公报
- He was released on bail pending committal proceedings. 他交保获释正在候审。
- to initiate legal proceedings against sb 对某人提起诉讼
6 remains
n.剩余物，残留物；遗体，遗迹
- He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
- The remains of the meal were fed to the dog.残羹剩饭喂狗了。
7 leftover
n.剩货，残留物，剩饭；adj.残余的
- These narrow roads are a leftover from the days of horse-drawn carriages.这些小道是从马车时代沿用下来的。
- Wonder if that bakery lets us take leftover home.不知道那家糕饼店会不会让我们把卖剩的带回家。
8 analyzed
v.分析( analyze的过去式和过去分词 )；分解；解释；对…进行心理分析
- The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
- The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。 来自《简明英汉词典》