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》
标签: sss 托福素材
学英语单词
after the rain
anastigmat objective
annuity rule
arenaviridaes
autochthonies
Balilihan
Ben Lui
beslobbering
bruchhefen
bucholz
Canada ginger
chanciest
Chaungtha
chirata
Coal City
community land
cooloff
course contents
coverdell
curdles
Daliburgh
Davenda
dawid
dig one's fect in
distributor contract
double arm kneader
ease the helm
enkaids
epiphosphorite
epulation
fat-mouth
flexible flightconveyor
foundation courses
fundiform
garbologists
glaucaeformis
greasing base
gutsiness
halls kiln
hard roving
have qualms about
hydrodistension
industrial coating
insensate
Itaquera
Kommandokraal
laboucheres
laughingly
Leea macrophylla
lhota
low-temperature reactor
macgovern
MARISAT system
mortgage assets
Mucuna birdwoodiana
Mukwela
neo-renaissance
No cross no crown.
non-replicate
opposite acting force
order foraminiferas
order Marchantiales
performance history
perianal pruritus
phytanolate
Pittsburgh Symphony Orchestra
plain barreled roll
polysyntheses
prefiring cycle
preimpregnated carbon fibre web method
quarriable
radial breeder
real disposable per capita income
reconstruction of urinary bladder with rectum
residual sum of squares
right elevator
ruptime
sample inlet system
shell-moulding
shovel bit
sister german
sleeper conveyor truck
smyth report
stock-stills
stress in virgin rock mass
table lookup
tautness
telezepine
theoretical calculations
thermophiles
three-fold coordination
toilet-room
tricoloured
undersaturated
ustilago ischaemi-akoensis
Valsalva manoeuvre
vectodyne
wabi
Wurdemanniaceae
ygranted
yust
Zombie Juice