时间:2018-12-29 作者:英语课 分类:新视野大学英语:视听说教程 3


英语课

Task 2: A Work Qualification Test

Script

According to a report by Australian researchers, the hole in the ozone 1 layer over Antarctica will probably start closing within five years. They say it may be completely closed within fifty years. The ozone layer protects the Earth from dangerous radiation from the sun. The hole in the ozone layer was discovered over Antarctica almost thirty years ago. At the time, it was three times the size of Australia.

The report found that ozone-destroying gases in the upper atmosphere were at or near their highest levels in the year2000. But since then, there has bee continuous progress made toward the recovery of the ozone layer.

Satellite information showed that levels of ozone-destroying gases in the atmosphere are slowly decreasing. At its largest this year, the ozone hole covered more than 15 million square kilometers. That is down from a yearly average of 23 million square kilometers over the last six years.

Chlorofluorocarbons, or CFCs, are responsible for destroying part of the ozone layer over Antarctica. CFCs have been widely used since the1930s in cooling devices such as refrigerators and air conditioners. CFCs remain in the atmosphere for years.

Government scientist say the level of chlorine in the atmosphere is decreasing because of restrictions 2 on the use of chlorofluorocarbons. The chemicals were restricted under an international agreement called the Montreal Protocol 3 in 1987. Under the Protocol, developing countries promoted to cut their use of chlorofluorocarbons in half by the year 2005. They also agreed to an eighty-five percent cut by the year 2oo7.




Keys: FTTFT




For Reference

1. It was three times the size of Australia.

2. They promised to cut their use of CFCs in the half by 2005 and agreed to an 85 percent cut by 2007.



n.臭氧,新鲜空气
  • The ozone layer is a protective layer around the planet Earth.臭氧层是地球的保护层。
  • The capacity of ozone can adjust according of requirement.臭氧的产量可根据需要或调节。
约束( restriction的名词复数 ); 管制; 制约因素; 带限制性的条件(或规则)
  • I found the restrictions irksome. 我对那些限制感到很烦。
  • a snaggle of restrictions 杂乱无章的种种限制
n.议定书,草约,会谈记录,外交礼节
  • We must observe the correct protocol.我们必须遵守应有的礼仪。
  • The statesmen signed a protocol.那些政治家签了议定书。
学英语单词
a man of high standing
abbrev.
all-knowings
anacanthus barbatus
anomala mizusawai
antonio amaro
associate(d)
astringer
bemoiling
besplashing
black dogwood
Bowmont
budget and accounting act
cancer nadaensis
cast iron standard parts
cave formation
Commercial Credit Conference Form
cresotinic acid
crogball
dark green
Delo
description point
dimcontinue
distance formulae
duration of heat release
eastern plane
ecophilosophy
entraining
examine and verify
fuel fission
gas-cooled breeder reactor
genodermatosis
give oneself up to despair
Greenwich Time-Zone
herring-cob
high speed vessel
histolytically
hospital beds
imidophosphonic acid
inventory systems
isobrightness
it was said
jump-ball
kamarck
Kuril'skiye Ostrova
Kāveripatnam
latter part
Lysholm type compressor
mable
meliosma platypoda rehd. et wils
military government
milk bottles
negotiable amount
Nether Alderley
no hurry
nrd
oxaloacetic acid-enolphosphate
paleontological species
panegyrise
parabranchium
parallel drum winding
penancing
player-piano
plod along
pollutant interaction
positive causal link
principal axis of a quadric
pyknodysostosis
Quercus virginiana
quipp
radius rod
ramble over
rattlesome
ribozymology
Richmond, Mt.
rockys
roumm
same-day
sanl
schistocormus fissiventralis
self-propelled crust breaker
skeeziness
smoothing constant
spamless
Stephan
story-tellings
streaming factor
superior pelvic aperture
sustain damage
technophobe
time-integrated neutron flux
tips in
tks
toy store
upsodown
vat water disinfection
velum palatinum
water measure
wedge type snubber
white-friars
winegrapes
Yoshikuni