时间:2019-01-30 作者:英语课 分类:2006年慢速英语(四)月


英语课

DEVELOPMENT REPORT - A Small Packet of Chemicals, a Big Effect on Dirty WaterBy Jill Moss 1

Broadcast: Monday, April 03, 2006

I'm Steve Ember with the VOA Special English Development Report.

Scientists have developed a water treatment system that they say is a powerful but simple way to save lives. Four grams of chemicals can treat ten liters of dirty water for a low cost, about ten cents.

Experts say infections from dirty water kill several thousand children in developing countries every day.

The Procter and Gamble company has been developing the PUR Purifier of Water system since nineteen ninety-five. The company has been working with the United States Centers for Disease Control and Prevention.

C.D.C. researchers tested it in Guatemala, Pakistan and Kenya. Procter and Gamble researcher Greg Allgood says cases of diarrhea in those studies fell by about fifty percent.


Procter and Gamble scientist Greg Allgood adds a PUR chemical treatment to a container of dirty water, Feb. 14, 2006

Researchers from Johns Hopkins University in Maryland tested the system at a refugee camp in Liberia. Mister Allgood says that study found a reduction of more than ninety percent.

Use of the system is being expanded worldwide. Findings were described last week at an American Chemical Society meeting.

A small container holds the d safe to drink twenty minutes later.

The treatment contains bleach 2 to kill disease-causing organisms. It also contains ferric sulfate which dirt and other particles stick to. Mister Allgood says the chemicals can remove lead and other dangerous metals and even agricultural poisons like D.D.T.

Mister Allgood heads the Children's Safe Drinking Water program at Procter and Gamble. He says about forty million packets of the treatment have been given to countries for free. They have been used in emergencies and in areas with limited supplies of clean water.

Clean water is a limited resource in many parts of the world. Delegates from about one hundred thirty nations attended the Fourth World Water Forum 3 last month in Mexico City. Scientists, policy experts and others discussed ways to provide clean water to the world's poor. Organizers say more than twenty percent of the world population lacks clean drinking water.

The final declaration did not go so far as to declare water a human right. But it did say that governments, not private companies, must take the lead in improving the public's ability to have clean water.

This VOA Special English Development Report was written by Jill Moss. I'm Steve Ember.



n.苔,藓,地衣
  • Moss grows on a rock.苔藓生在石头上。
  • He was found asleep on a pillow of leaves and moss.有人看见他枕着树叶和苔藓睡着了。
vt.使漂白;vi.变白;n.漂白剂
  • These products don't bleach the hair.这些产品不会使头发变白。
  • Did you bleach this tablecloth?你把这块桌布漂白了吗?
n.论坛,讨论会
  • They're holding a forum on new ways of teaching history.他们正在举行历史教学讨论会。
  • The organisation would provide a forum where problems could be discussed.这个组织将提供一个可以讨论问题的平台。
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a man of zeal
a new generation
ambiversive
analysis system
Antabuse
appose
arrears of work
auxiliary driven turbine
Bartolus of Saxoferrato
best quasi-linear estimator
biochemical mechanism
bismuth(ii) selenide
both mature and young soils
cable operated brake
cathodically
center gole
certificate of registration as a dealer in securities
combustible liquide
compressive strength for point contact
cyanogen fluoride
Czluchow
day schools
device attention switch
double-layer lens
embryonic bud
equivalence variable
ES (electromagnetic storage)
exclusive authority
fifteener
first hand knowledge
frequency-gain curve
frozen in magnetic field
functional music
glomerella lindemuthianum (sacc et magnas) shear
glutathionylation
herbert von karajan
heterophorometer
high resilience
HP cooler
HSS turning bit
in the dim and distant past
Instructions on getting Support for Netscape
interface energy
isocyperol
jaimee
kiu
kumi
letter record
limitational
link exchanges
lower leg
magneto-optic(al) bubble display
mahalas
mating profile
memory control table
metrical psalm
microdisplacement
multiloculated
multiprogrammed computer
mutual debt
National Motto
no-lone zone
non-catalytic single pellet gas-solid reaction
noncoplanar force
nontidal drift
nucleic acid chemistry
orthographical
owl-eyed
paleometamorphism
pied-piper
pond-apple tree
postedit
preemphasis circuit
procced
radioactive label
re-tying
remove parenthesis
sakia
Sermaize-les-Bains
sero-albumen
shaft locating
short range attack missile
showgrounds
slipcastings
smoothing filter
specialised audit
spool displacement
staphisine
superquick ratio
suppurative rhinitis
tank passage
the Pope
thelitis
think again
topographical legend
transient critical heat flux
triplicostate
turbinaria stellulata
umbrept
volatile compounds
water-dilutible paint