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》
9 jaws
n.口部;嘴
  • The antelope could not escape the crocodile's gaping jaws. 那只羚羊无法从鱷鱼张开的大口中逃脱。
  • The scored jaws of a vise help it bite the work. 台钳上有刻痕的虎钳牙帮助它紧咬住工件。
学英语单词
adrenosteral
alacranite
alborada
alkyl sulfonic ester
allport
alternative tax on capital gain
artificial brooding
Baganda
baptitoxine
be proposed as
beam bunching
bean huller
benicio
benting
brackman
chaetoceros debilis
cheiro-
come into someone's possession
contact improvisation
copy money
coronavirus group i transmissible gastroenteritis virus
cultivated land
cystadenoma of breast
dependent lu requester / server
digital filler bank
digital-to-analog circuit
disentrances
display writer
Eisenhower jacket
electron clouds
enclosings
enthalpy diagram
expense fund deposit
fine-needle aspiration biopsy
fiscal period
fish horns
foot and mouth disease?
Foren process
formation-resistivity factor
fulleride
General Catalogue of Variable Stars
genus clianthuss
genus Nitella
German Patent
Heinsheim
i-told-you-so
interelectron
Jackiw
kto
land leveller
let something slide
library migration table
low-energy
magneto-optic disc
meaning encoding
mentomeckelian bone
Moitaco
moraceous
musculi depressor supercilii
no-decompression
ohmic pseudo-polarization
ordinal utility function
outbound tourism
pilea mongolica wedd.
plasma kinetics
principle of design
pulsejet
quotidial
rail finishing mill
Ravenna grass
rebolt
recover the scent
redundant instrumentation
renormalizability
rotary type heating furnace
run it fine
Salado River
Saraswati R.
screening of crew
sea-bathing
sha'n't
slow-neutron chain reaction
sorption velocity
Spanish Sahara
still the pain
strain crystallization
Streptomyces thermofuscus
sulfated slag cement
suturae postmortum
systolic murmur
Tamayo, Rufino
thorny skate
tree stock
triets
trigooa ventriculi lateralis
turnkey operation
unsadden
victualling vessel
wetfinish machine
xbas
YankeeDoodle
zerocaute4ry