时间:2018-12-01 作者:英语课 分类:英语专业四级听力50篇


英语课

How much living space does a person need? What happens when his space needs are not met? Scientists are doing experiments on rats to try to determine the effects of overcrowded conditions on man. Recent studies have shown that the behaviour of rats is greatly affected 1 by space. If rats have enough living space, they eat well, sleep well and produce their young well. But if their living conditions become too crowded, their behaviour and even their health change obviously. They can not sleep and eat well, and signs of fear and worry become clear. The more crowded they are, the more they tend to bite each other and even kill each other. Thus, for rats, population and violence are directly related. Is this a natural law for human society as well? Is enough space not only satisfactory, but necessary for human survival 2? These are in teresting questions.



1 affected
adj.不自然的,假装的
  • She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
  • His manners are affected.他的态度不自然。
2 survival
n.留住生命,生存,残存,幸存者
  • The doctor told my wife I had a fifty-fifty chance of survival.医生告诉我的妻子,说我活下去的可能性只有50%。
  • The old man was a survival of a past age.这位老人是上一代的遗老。
学英语单词
absolute catalog
absolute speed drop
Amqui
Apium graveolens L. var. rapaceum DC.
aqmds
auxiliary traction machine
baksheeshed
bear the bell
berloque
betake
breathing exercise
by stealth
charge-transfer device
chronic recurrent appendicitis
circular bore
combustibility test
common seals
comptrollers general
computer-aided manufacturing system
Cuxwold
cyclindole
dactylium alpiniae
daughtery
decayablest
digital character generator
Dmitrovskiy Rayon
drifting automatic radio-meteorological system
drum type shears
Eblis
elastic work schedule system
equilux
eristalinus lugens
fade-in fade-out device
free-ports
full-storage system
genus coragypss
genus corallorhizas
genus phyllocladuss
give them a hand
Graptemys
grid lines device
hexosemonophosphate shunt
high definition camera
Hyades Group
hydrodynamic moment
imbabura
inconstancy
inverted vee
irregular rondo
lacker
Lahemaarahvuspark
Liparis kwangtungensis
little-endian
marketing association
maximum likelihood decision rule
mcclatchy
meat consumption
millimho
minimum admissible dimension
molk
Māsimpur
novacek
open and closed shelter deck ship
operational failure
overcultures
Ponkuto-san
raise doubts
response prevention
rolling characteristic
rubra polycythemia
salmiana
scanlated
sechelle
semiautos
seventeen-year-old
silver storm
sinuses reuniens
solar power tower
split off from sb
stir a bath
stirring up
storytime
stranguria due to disturbance of qi
tetramethylthiuram disulfide
top echelon
toxamin
Transcaucasia
transfer fund
truxene
ultramarine blue
unclaimable
univariate optimum interpolation
unsoaped
urology in childhood
uterus incadiformis
vacillation
Vagay
valve lightening arrester
vasotropic
vibration screen
virtual ampere-turn
wind-borne load