时间:2019-01-13 作者:英语课 分类:VOA标准英语2010年(三月)


英语课

Sierra Leone is working to preserve the ecosystem 1 of coastal 2 mangrove 3 swamps that are threatened by people collecting firewood and harvesting salt.


Harvesting salt along the coast of West Africa is an age-old business. But today  conservationists say it is degrading mangrove swamps and ravaging 4 fish stocks.


Lawmakers in Sierra Leone are preparing to join a seven-nation charter to protect the region's mangrove ecosystem which conservationists now say totals just 800,000 hectares.


Mangroves are the most readily available source of firewood for fires to boil seawater and what is called "salt dust" scraped from the soil.


Marie Kano heads Sierra Leone's salt producers' association. She says many of the mangrove trees used for fuel are already gone.


"We come here to scrape the salt and we collect the salt dust," she said. "But because there is no wood, we've left the salt business for other things. My children, my sister and my father lived with me and we all used to cook salt. But because there is no wood anymore, they all left and went to town."


Environmentalists are trying to encourage Sierra Leone's salt producers to use other methods, including drying salt in the sun, to reduce the strain on mangroves.


"If the mangroves disappear, fishing will be in crisis and the ecological 5 balance will be disrupted," said Richard Dacosta, the West Africa coordinator 6 for the development group Wetlands International. "Also the saltwater tide will invade river estuaries 7 and coastal areas. And local communities, who usually live right on the coast, will have to move."


West Africa's mangrove forests absorb thousands of tons of carbon dioxide, and could be a way for the region to get a foothold in the $136 billion carbon world market.


They are the nurseries of the ocean, where many species of fish and shrimp 8 breed and serve as a buffer 9 against coastal erosion in a region where much of the population lives in low-lying areas.

 



n.生态系统
  • This destroyed the ecosystem of the island.这样破坏了岛上的生态系统。
  • We all have an interest in maintaining the integrity of the ecosystem.维持生态系统的完整是我们共同的利益。
adj.海岸的,沿海的,沿岸的
  • The ocean waves are slowly eating away the coastal rocks.大海的波浪慢慢地侵蚀着岸边的岩石。
  • This country will fortify the coastal areas.该国将加强沿海地区的防御。
n.(植物)红树,红树林
  • It is the world's largest tidal mangrove forest.它是世界上最大的红树林沼泽地。
  • Many consider this the most beautiful mangrove forest in all Thailand.许多人认为这里是全泰国最美丽的红树林了。
毁坏( ravage的现在分词 ); 蹂躏; 劫掠; 抢劫
  • It is believed that in fatigue there is a repeated process of ravaging the material. 据认为,在疲劳中,有一个使材料毁坏的重复过程。
  • I was able to capture the lion that was ravaging through town. 我能逮住正在城里肆虐的那头狮子。
adj.生态的,生态学的
  • The region has been declared an ecological disaster zone.这个地区已经宣布为生态灾难区。
  • Each animal has its ecological niche.每种动物都有自己的生态位.
n.协调人
  • The UN Office for the Coordination of Humanitarian Affairs, headed by the Emergency Relief Coordinator, coordinates all UN emergency relief. 联合国人道主义事务协调厅在紧急救济协调员领导下,负责协调联合国的所有紧急救济工作。
  • How am I supposed to find the client-relations coordinator? 我怎么才能找到客户关系协调员的办公室?
(江河入海的)河口,河口湾( estuary的名词复数 )
  • We also recognize the diversity and complexity of controlling in fluences in estuaries. 我们也认识到在河湾内控制影响的多样性和复杂性。
  • Estuaries also contribute to economy through tourism and fishing. 河口还为人类提供了休闲和教育的场所。
n.虾,小虾;矮小的人
  • When the shrimp farm is built it will block the stream.一旦养虾场建起来,将会截断这条河流。
  • When it comes to seafood,I like shrimp the best.说到海鲜,我最喜欢虾。
n.起缓冲作用的人(或物),缓冲器;vt.缓冲
  • A little money can be a useful buffer in time of need.在急需时,很少一点钱就能解燃眉之急。
  • Romantic love will buffer you against life's hardships.浪漫的爱会减轻生活的艰辛。
学英语单词
a smash
anterior radial vein
Aosta,Valle d'
appearance ratio
Australian sword lily
Avia, R.
be limited to
berberis canadenses
bilaminar blastoderm
Bjφrkelangen
bubble axis
bulkhead web
channichthyids
chlorprenaline
cinematising
clamart
Clematis pseudopogonandra
client platform
conditionning
cost per mille
cost-prohibitive
cross intensity function
cystic sinus of sacrococcygeal region
dead-letter office
degrees of frost
Dehydropodophyllotoxine
dextrinised starch
dictionary entry
direct probability
duben
E. I. S.
ectopia of heart
ekblom
electric power substation
extremitas uterina
final polishing pass
fitting locker
forest maturation
formosa aboriginal culture village
fracture of shaft of tibia and fibula
funny
genus Acroclinium
ghosts
Gleditsia formosana
goaneran
grazing preference
I don't mind
idees
inertia frequency
isovaleric acid isobutyl ester
jivadaya
jumblement
lack of supplies
liliopsid genera
magic mountain
maple heights
march to the beat of a different drum
multiplicative array
needle aspiration
neotoxoptera formosana
not amount to much
novatrin
numbering of property
operating lever articulation
pathoadaptation
permanganyl
phants develop in an unhealthy way
photomultiplier effect
pin tuck
polyisobutylenes
posterolateral central arteries
potentiometer with switch
power-ratio method
privalova
pruning machine
psychohistoric
punched card verifier
pupillise
pyromucylchloride
reflex paralyses
snake venom poisoning
socioscientific
sosin block instrument
spermatophylaxes
state prison
steam and water radiator
stromatolith
supersonic bang
suspence
syzygetic pencil
Sūq al Ithnayn
tanjungbalai (tandjungbalai)
tea-cups
Tioglisynth
Tlhakgameng
triply primitive cell
unfair stress
unpunctuate
valamite
varioplex
Walpia
wedge wire cloth