时间:2019-01-02 作者:英语课 分类:科技之光


英语课

SCIENCE REPORT

February 13, 2002: Oral Health Study


By George Grow



This is the VOA Special English SCIENCE REPORT.


A new report examines the problem of tooth and gum disease in the United States. It found that many Americans
are not doing enough to care for their teeth. The report says the biggest problems are the lack of dental health care
for all Americans and the lack of services to prevent disease.


A group called Oral Health America in Chicago, Illinois, released the findings. It used information from recent
government studies to prepare the report. The group’s leader says the report shows the nation needs to be more
concerned about the oral health of its citizens.



One major problem is tooth decay 1. Bacteria in the mouth act on sugars that remain on the teeth
after eating. This action creates acid that damages the tooth. The damage appears as a hole in
the tooth called a cavity 2. The part of the tooth that has been destroyed by the acid is called tooth
decay.


There are many reasons for diseases of the teeth and gums. The report says many areas in the
United States fail to add enough fluoride to public drinking water. It notes that ten states failed
to provide fluoridated water for at least fifty percent of their population. Fluoride is an element
found in rocks and minerals. Drinking fluoridated water is one of the best ways to prevent tooth
decay.


The report shows that many Americans do not have their teeth examined by a dentist or trained expert. In most
states, one-third or more of the citizens failed to visit a dentist at least once last year.


In addition, a person ’s earnings 3 seemed to have a major effect on the services received. Poor people are less
likely to visit a dentist. More than one-hundred-million American adults and children do not have insurance to
help pay for treatment by a dentist.


One area of progress is increased public understanding of oral health issues. The report notes that several states
now employ dental health directors. Oral Health America says the increased understanding is partly a result of
American Surgeon General David Satcher. Two years ago, he released a report on the importance of oral health.


His report noted 4 that more than thirty-thousand Americans develop cancers in the mouth or throat every year. It
also found that tooth decay is the most common disease among American children. Fifty percent of all six-yearold
children already have tooth decay.


This VOA Special English SCIENCE REPORT was written by George Grow.



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vi.腐烂,衰落;n.腐烂,腐朽,衰败状态
  • The vegetables have begun to decay.那些蔬菜已开始腐烂。
  • Our powers decay in old age.我们的体力在老年时就衰退。
n.洞,穴,凹处,龋洞
  • There's a cavity in the boy's tooth.这个男孩的牙上有一个洞。
  • The dentist carefully located the filling in the cavity.牙医小心地把填塞的东西放入牙洞里。
n.工资收人;利润,利益,所得
  • That old man lives on the earnings of his daughter.那个老人靠他女儿的收入维持生活。
  • Last year there was a 20% decrease in his earnings.去年他的收入减少了20%。
adj.著名的,知名的
  • The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。
  • Jim is noted for arriving late for work.吉姆上班迟到出了名。
学英语单词
a blaze
access control-logging and reporting
aggregate adjustment
agogics
airfield rescue
altenusin
arranging
at a gift
aurei
bacteriocidic
Balli Abdi Ali
bargain-price
bawbags
beer tickets
black finance
Bliesen
bocage
branchies
butunazole
Clerodendrum lindleyi
cole albert porters
conscience money
crablike
crap factory
danjon
decision under risk
demetriuss
divisadero
do as you think best
dung locks
electrooptic crystal light valve
embryogeneses
errand boys
Etifoxiuum
exhaust collector ring
field two dominance
fine-scaled distribution
fishtail plate
flute of drill
flydas
galactopyranoses
giemsas
go-down
gomma
green cloth
heavy equipment transporter
hollow spinning block
hunting angle
ilands
induced T cell
intellectual revolution
kelp bed
Korhogo, Dép.de
langmuir viscosity gauge
lay oneself out to do something
light as a feather
light field
Malungeon
mesoxerophyte
misgive
Māwiyah
named
Non-enforcement of Arbitral Award
op-amp-booster hybrids
optical data networking
OSHRC
pan man
parietaries
peterbo
phosphaturias
polarization energy
pop across
portrait painters
preliminary scheme
price has skyrocketed
private company
pronominalizations
Pynchonian
Sangarh
santosh
sasrses-s
sausage with alternative
seriously ill or injured
sextant stand
shends
shulwar
situation-action system
skin-effect attenuation
slightens
soy stewed
spirobindene
structure of threshold function
sun-bird
taxation approach benefit theory
technological petrology
temperature-indicating compound
Tetramitus
Theligonum japonicum
thrombocytosis
trulli
twin tail
ula (ula) flavidibasis