时间:2019-01-08 作者:英语课 分类:Scientific American(六)月


英语课

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute?


When the internet first got kicking, some scholars of democracy and civil society thought that online discussions could create what they called a "conversational 1 democracy": an ongoing 2 town hall without bricks and mortar 3. But the internet may not be as democratic as they'd imagined, according to a study in the journal Communication Research.


Researcher Itai Himelboim gathered eight million messages posted to 35 political and philosophical 4 newsgroups—like alt.politics.usa—over a six-year period. And he analyzed 5 the connections among the messages. Turns out that 50 percent of all replies were directed at just 2 percent of people who started threads, and who thus came to control the discussion. And the larger the newsgroup, the more polarized this effect became.


But these newsgroup dominators weren't posting much original content. Sixty percent of their posts were just content lifted from traditional news sources like the New York Times. Which is good news for the news business, the author says. Because it means people still want someone else to search out information and deliver it. After all, isn't that one reason why you listen to this podcast?


Thanks for the minute. For Scientific American's 60-Second Science, I'm Christopher Intagliata.



adj.对话的,会话的
  • The article is written in a conversational style.该文是以对话的形式写成的。
  • She values herself on her conversational powers.她常夸耀自己的能言善辩。
adj.进行中的,前进的
  • The problem is ongoing.这个问题尚未解决。
  • The issues raised in the report relate directly to Age Concern's ongoing work in this area.报告中提出的问题与“关心老人”组织在这方面正在做的工作有直接的关系。
n.灰浆,灰泥;迫击炮;v.把…用灰浆涂接合
  • The mason flushed the joint with mortar.泥工用灰浆把接缝处嵌平。
  • The sound of mortar fire seemed to be closing in.迫击炮的吼声似乎正在逼近。
adj.哲学家的,哲学上的,达观的
  • The teacher couldn't answer the philosophical problem.老师不能解答这个哲学问题。
  • She is very philosophical about her bad luck.她对自己的不幸看得很开。
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》
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学英语单词
Abel, Sir Frederick Augustus
access oriented
accomplisher
afterreaction
amyra
applet class
ATMCT
atmosphere corrosion
awareness-raisings
beacon collision avoidance system
bivescula lutiani
Board of Supervisor
bordage
bottom-supported rig
burnt flavo(u)r
caddinet
cattle-trespasses
centralized approach
chamberlets
colour gamut
Committee on Housing
corundum margarite -pegmatite
cotyloid
cubic lattice
cytisus
dapportoes
derrick foot
dimension series number
dorkiest
dredging pump impeller
dummy bus bar
dweck
eccentric bearing journal
ecological party
ejection period
electric supply line
Ellisonian
expanded perlite products
expansion reed
flea-bit
foliated granite
FPROM
francium oxide
genus basiliscuss
genus vanelluss
half track tractor
hft
Illigera nervosa
image greyscale
infanthood
intake guidance
Intermedine
intrinsic equation of a curve
kept indoors
kow-towed
Kuchean
malayas
maser system
momism
multiple list
mutagenetic
naval strategy
oolitic formation
osill
outer aperture
overshops
oxiacalcite
panamco
petrochemical refinery
petroleum operations
pinary
post to
post-office box number
pseudoacid
push-back cam
pvdas
quality circles
rear-loading facility
redundant mobility of robot
restriction notice
rete mirabiles
runyon
shop-vac
simple impulse turbine
single-pin type spanner wrench
Slime-mold
solid centre spot
source transformation
Spirochaeta rossi
talc granuloma
tartlike
technigluon
tethered unit
the toast of sth
time schedule of works
type scheme
variola minor
Vessel on Demurrage
vulsella spongiarum
wax cloth
whole kernel