时间:2018-11-30 作者:英语课 分类:英语专业四级听写


英语课
Passage 31
Water Pollution
Water is very important to us. Factories and plants need water for industrial uses and large pieces of farmland need it for irrigation. Without water to drink, people die in a short time.
Today most water sources are so dirty that people must purify 1 water before drinking. Water becomes dirty in many ways: industrial pollution is one of them. With the development of industry, plants and factories pour tons of industrial wastes into rivers every day. The rivers have become seriously polluted, and the water is becoming unfit for drinking or irrigation. The same thing has also happened to our seas and oceans. So, the problem of water pollution is almost worldwide.
Scientists of many countries have done a lot of work to stop pollution. The polluted water in some places has become clean and drinkable again. Perhaps one day the people in all towns and cities will be drinking clean water. That day, we believe, is not very far off. (161 words)


1 purify
vt.使纯净,提纯,使纯洁
  • They open the windows to purify the air of the room.他们打开窗户清涤室内空气。
  • You should purify the water before drinking it.喝水前,你应使之净化。
学英语单词
a playboy
active sweat glands
agisting
aluminum metal
American Manufacturers Foreign Credit Insurance Exchange
angular integral
artemus wards
aspherically
attaineth
availability of bank
azimuth angle
barken
batch measuring system
besetters
betostatine
biological luminescence
birth rate, birthrate
bruiseless
carrying capacity of river
chloroethanesulfonyl chloride
clothesmen
cognate inclusions
consulting psychology
control-rod channel
conventional chemical constant
core-flux test
ctenochasmatids
decimal computer
dimmedness
dracunculus medinenses
dutro
expanded form of value
Falama
fellow-traveler
film crew
formidolose
fuel injection systems
function constraint
fur brush development
giganticide
graphic analysis of data
grey herons
HAF black
hits on
homeomorphism problem
ICPMM
impact microphone
insulation control
intermediate port
inyet
Koumra
Leiboff-Kahn's method
liquidus line
local switching center
Lykershausen
manual gate valve
Marconaflo
master cylinder lever
medd
melting test
mishold
monocytoses
multi-plate steering clutch
murnane
Naga Hills
narrow beam transducer
narrow mind
nitrolignin
nonantagonistic contradiction
oxy-accetylene blow pipe
page use list
peritectomies
permitted level of return
power valve
pre-colonial
preprocess stock
press tits
printograph
rammed bottom
reparameterization
Shaveh-Kiriathaim
Skee-Ball
SM'2
sodoku
sonsie
spiracin
St.
starch dialdehyde
sucm pump
system rehearsal
telmex
to RT
treadplate
treaty wording
tripod stack
twin engine aircraft
uhhhhh
us government securities
Utricularia bifida
virtual pitch
vittell
walnut shell power