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。
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adit opening
all-hid
anandite
aplanatic
arc extinguish device
artificial cross
AUW
auxiliary control coil
be prodigal of praise
Benmosche
caulimovirus
chlorian
circular earthquake
circumferential sealing
clearance slippage
combined powerplant
common disease poultry and livestock
condensation of data
cotylophorus
cross - border trade
croydens
cunninghemella plaque test
curcuma domesticas
difference group
distillation test residue
dullery
ebble
electricity market model
electrocyclic rearrangement
electron transport
extranuclear chromatin
Fahry alloy
fast virtual export report
Gabomade
globalists
gloopily
good-for-you bacteria
grazing sheep
guarding from the rear
hand round pass
hat-rack
heat death
hematocus
hereditary hypertrichosis
high-contrast image
hydrogen density
infant massage
ingestant
intra-class correlation coefficient
ipsapirone
Isomist
jepsyon
KIN ONE
laser dyes
lithium fluorosilicate
local forecast
machine aided human translation
mandamus
Metengobalame
moniba
Naruksovo
neocolonialisms
open terminal
orante (greece)
over-waterings
panbreaker
paralytic beriberi
pea leafminer
piece shell,graft shell
plant box
polluted belts along river banks
practical testing
protein-fortified milk
quinticlave
range of influence
rationales
reactor-year
refuse wood
rent-a-robber
rind tumor
Scirpus subulatus
scribing plate
SCSI protocol
self-celebration
semi-planing hull
shipping market
skip chain
speciates
structural analysis
syndyne
Tally List
Taurotragus derbianus
televotes
temporary change of flag
test questions
tpi
transculturally
transporting transfer auger
truck spring hanger
velhas
web-work
yixingensis