时间:2018-12-24 作者:英语课 分类:Scientific American(三)月


英语课

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.


 


Understanding all the genes 1 and molecules 3 involved in human disease is quite a challenge. That’s why scientists study model organisms, like flies and worms and mice, that are made of the same stuff we are. Now scientists in Illinois and Israel have found a strange new model that they say mimics 4 the molecular 5 behavior of human cancers: the naked mole 2 rat.


These odd little creatures live in subterranean 6 tunnels where air is at a premium 7. So the animals have evolved a strategy for surviving when oxygen is scarce. Well, the same is true of cancers. In a rapidly growing tumor 8, the cells in the center are often oxygen-deprived, because blood vessels 9 don’t reach all the way inside.


And the scientists are finding that mole rats and tumor cells use similar mechanisms 10 to make the most of the little oxygen they have. In particular, the researchers have so far identified three genes that respond to plummeting 11 oxygen levels. The genes’ activity patterns are the same in mole rats and in cancer cells. Understanding how these genes work could suggest new ways of choking the life out of tumors, by turning off their ability to live like mole rats. Well, malignant 12 mole rats.


 


Thanks for the minute for Scientific American's 60-Second Science. I'm Karen Hopkin.

 



1 genes
n.基因( gene的名词复数 )
  • You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因,所以能够活得很长。 来自《简明英汉词典》
  • Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪
2 mole
n.胎块;痣;克分子
  • She had a tiny mole on her cheek.她的面颊上有一颗小黑痣。
  • The young girl felt very self- conscious about the large mole on her chin.那位年轻姑娘对自己下巴上的一颗大痣感到很不自在。
3 molecules
分子( molecule的名词复数 )
  • The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
  • Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里,大分子裂变为小分子。
4 mimics
n.模仿名人言行的娱乐演员,滑稽剧演员( mimic的名词复数 );善于模仿的人或物v.(尤指为了逗乐而)模仿( mimic的第三人称单数 );酷似
  • Methods:Models were generate by CT scan,Mimics software and Abaqus software. 方法:采用CT扫描,Mimics软件和Abaqus软件的CAD进行三维有限元模型的创建。 来自互联网
  • Relaxing the mind and body mimics the effect that some blood-pressure pills would have. 放松身心会产生某些降压药才能产生的效果。 来自辞典例句
5 molecular
adj.分子的;克分子的
  • The research will provide direct insight into molecular mechanisms.这项研究将使人能够直接地了解分子的机理。
  • For the pressure to become zero, molecular bombardment must cease.当压强趋近于零时,分子的碰撞就停止了。
6 subterranean
adj.地下的,地表下的
  • London has 9 miles of such subterranean passages.伦敦像这样的地下通道有9英里长。
  • We wandered through subterranean passages.我们漫游地下通道。
7 premium
n.加付款;赠品;adj.高级的;售价高的
  • You have to pay a premium for express delivery.寄快递你得付额外费用。
  • Fresh water was at a premium after the reservoir was contaminated.在水库被污染之后,清水便因稀而贵了。
8 tumor
n.(肿)瘤,肿块(英)tumour
  • He was died of a malignant tumor.他死于恶性肿瘤。
  • The surgeons irradiated the tumor.外科医生用X射线照射那个肿瘤。
9 vessels
n.血管( vessel的名词复数 );船;容器;(具有特殊品质或接受特殊品质的)人
  • The river is navigable by vessels of up to 90 tons. 90 吨以下的船只可以从这条河通过。 来自《简明英汉词典》
  • All modern vessels of any size are fitted with radar installations. 所有现代化船只都有雷达装置。 来自《现代汉英综合大词典》
10 mechanisms
n.机械( mechanism的名词复数 );机械装置;[生物学] 机制;机械作用
  • The research will provide direct insight into molecular mechanisms. 这项研究将使人能够直接地了解分子的机理。 来自《简明英汉词典》
  • He explained how the two mechanisms worked. 他解释这两台机械装置是如何工作的。 来自《简明英汉词典》
11 plummeting
v.垂直落下,骤然跌落( plummet的现在分词 )
  • Prices are rising, falling, going up, going down, shooting up, plummeting, etc. 物价在上涨、下跌、上升、下落、猛然上涨、骤然下跌等。 来自辞典例句
  • The enemy plane went plummeting into the sea. 敌机直直掉进海里。 来自辞典例句
12 malignant
adj.恶性的,致命的;恶意的,恶毒的
  • Alexander got a malignant slander.亚历山大受到恶意的诽谤。
  • He started to his feet with a malignant glance at Winston.他爬了起来,不高兴地看了温斯顿一眼。
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学英语单词
.oogl
acolous
agricultural vessel
ala of vomer
antidegenerative
applehood
back to back
Bad Krozingen
bad quality
basalt-plain
Bauskas Rajons
beeck
beztr
bit error rate(ber)
bloodstained
Borofair
boundary of compartment
brawlys
bronzewing pigeon
but etc.
caesium resonator
Carolingians
Charles Louis Napoleon Bonaparte
Christmas tree blade root
chyron corporation
closed-loop phase angle
coffee-tables
condensate recirculating water pipe
contri
coset weight
Count Nikolaus Ludwig von Zinzendorf
cupron
device-template library
devium
Diaramana
door control circuit
dust bin
E ticket
easternization
election-law
exotic plant
facial atrophy
filiform papilla
frequency-selective voltmeter
genus agriochariss
genus erignathuss
Grimstone
hamhocks
Henkel process
heubergers
hire-purchase price
hoads
hull class notation
hygromed
hysteroepilepsies
IHADSS
industrialising
input of control system of machine
linnik micro interferometer
Lithospermum hancockianum
macroassembler listed output
matremoine
missends
norfolk terriers
norne
nose hair
offshore bar
Oregon fir
overcutting machine
paraxial trajectory
passion sundays
pinching agent
plainback
platform code
plating-out
putrefactive bacteria
rears of tube
rent on movable estate
rowing
sebregondi
shaboinks
show a film
sodalitite
soil peak strength
special export
tagh
TAQUETE
tea plant
toponym
Totenkopf
traill
Trancoso
trifleth
ultra-high voltage electron microscope
Viola chaerophylloides
volumetric(al)analysis
wavelike cutting edge
Wistaria sinensis
works people
Wrights Corners
Zaidi
Zincfrin