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


英语课

   Teachers might want to think twice about posting 'no gum chewing' signs in the classroom. It turns out that the sticky substance might help students concentrate. Researchers had two groups of 20 people each listen to a 30-minute recording 1 that included a sequence of numbers. After listening, the participants were asked to remember the sequence. But only one group chewed gum, and they had higher accuracy rates and faster reaction times than the non-gum chewers. Those chewing gum also maintained focus longer during the exercise. The study is in the British Journal of Psycology and contradicts a 2012 study that found gum-chewing decreased shot-term memory performance. The researchers say that gum increases the flow of oxygen to regions of the brain responsible for attention. More oxygen can keep people alert and improve their reflexes. Research also shows that you won't get the same effect by just pretending to chew gum. So the next time you mind is wondering in class, maybe try some gum. If it doesn't help you concentrate, you'll at least be asked to leave.



1 recording
n.录音,记录
  • How long will the recording of the song take?录下这首歌得花多少时间?
  • I want to play you a recording of the rehearsal.我想给你放一下彩排的录像。
学英语单词
administracin
agtgravation
apac
arbor with cross-key
asbest cord
attometer
azara
banqueted
bexide
binding energy per particle
bitemporal hemianopsia
blending process
calyon
carcholin
carmegliptin
carter's spread
Chestertonians
chord inclination
clickily
Constantine Bay
culvert end lift
cut-away cassette
cytogeneticists
desiccants
diglycin
dollkind
donor doping
dragance
drill pipe flexweight
early response
edge effect of laminate
enforce the law strictly
field working
fixed dressing
flamingo-flower
flank forward
Fonofos
go into detail(s)
guaranteed-efficiency
hand operated direction valve
high level control
ileocolic veins
intercontinent
internal orifice of aqueduct of vestibule
Jew's-trumps
levirate
light intemsity variation
low temperature specific heat
lsb
Luqa Internat.Airport
magnesyn compass
maianthemum formosanum
malformation of heart
mat-backed film
monoid curve
montezs
multi-valued decision
network status
off - shore wind
official life
oil holder
olby
Ontariolite
optional half instruction
output voltage swing
parkwest
percentage of diminishing value plan
permeation flux
pipeworkers
protestantizations
pupa coarctata
radio radiations
Ranunculus muricatus
rashly launching new projects
reaggregated
right of rescission
saint-jure
sardonic smile
sash bracket
schaaf
semi-automatic telephone switch board
silurus glaniss
starter button
sticking places
sugar lumps
synaptoneurosomes
taper rolling
tetradentate
thermal equivalent
to much purpose
top-off
total thickness
track control arm
transcriptomic
turks head roll
Universal Telecommunication Radio Access Network
user's needs
vocal coach
warbags
what's with
yarrans