时间:2019-01-22 作者:英语课 分类:自然百科2009年


英语课

 When Amna Ment Mohamed opens a window in her home, a fountain of sand tumbles to the floor.


 
“I am always afraid as our house can fall on our heads. The sand comes in from all sides and the windows.”
 
To reach her front door, she must climb over the sand dune 1 at the side of her house. She lives in a Mauritanian village of Erebine. And the Sahara Desert sand is taking over the village. Desertification has increased dramatically over the last 40 years. Today, sand covers about forty percent of the country, which is twice the size of France.
 
Government data for 2007 showed that dunes 2 are shifting at an estimated 4 to 6 miles per year. Tops of houses are submerged by dunes and many people have moved to the cities. Some scientists blame global climate change for increased desertification, while others point fingers at poor agricultural practices and uprooting 3 trees for firewood and insulation 4, leaving nothing to bind 5 the sand.
 
The Mauritanian government in 2004 proposed a series of measures from the creation of a greenbelt around threatened cities to planting sticks and formations that halt the flow of sand.
 
A representative from the government’s department for the protection of nature shows vegetation they hope to plant to help combat the advancing sand.
 
“Every year, we bring up approximately a hundred or so thousand plants...of different species, local and indigenous 6 and introduced species... (amazing!!!)”
 
The United Nation's program for development in Mauritania works to help the people adapt economically.
 
“We have the loss of livestock 7, because we have lots of Mauritanians who are depending on animal husbandry. We had the decrease of agricultural production, and this led to...(a) rural exodus 8 from the people living in rural areas to bigger cities.”
 
And as the people abandon the villages in the countryside, it leaves them even more vulnerable to shifting sands.

n.(由风吹积而成的)沙丘
  • The sand massed to form a dune.沙积集起来成了沙丘。
  • Cute Jim sat on the dune eating a prune in June.可爱的吉姆在六月天坐在沙丘上吃着话梅。
沙丘( dune的名词复数 )
  • The boy galloped over the dunes barefoot. 那男孩光着脚在沙丘间飞跑。
  • Dragging the fully laden boat across the sand dunes was no mean feat. 将满载货物的船拖过沙丘是一件了不起的事。
n.倒根,挖除伐根v.把(某物)连根拔起( uproot的现在分词 );根除;赶走;把…赶出家园
  • He is hard at work uprooting wild grass in the field. 他正在田里辛苦地芟夷呢。 来自互联网
  • A storm raged through the village, uprooting trees and flattening crops. 暴风雨袭击了村庄,拔起了树木,吹倒了庄稼。 来自互联网
n.隔离;绝缘;隔热
  • Please examine the insulation of the electric wires in my house.请检查一下我屋子里电线的绝缘情况。
  • It is always difficult to assure good insulation between the electric leads.要保证两个电触头之间有良好的绝缘总是很困难的。
vt.捆,包扎;装订;约束;使凝固;vi.变硬
  • I will let the waiter bind up the parcel for you.我让服务生帮你把包裹包起来。
  • He wants a shirt that does not bind him.他要一件不使他觉得过紧的衬衫。
adj.土产的,土生土长的,本地的
  • Each country has its own indigenous cultural tradition.每个国家都有自己本土的文化传统。
  • Indians were the indigenous inhabitants of America.印第安人是美洲的土著居民。
n.家畜,牲畜
  • Both men and livestock are flourishing.人畜两旺。
  • The heavy rains and flooding killed scores of livestock.暴雨和大水淹死了许多牲口。
v.大批离去,成群外出
  • The medical system is facing collapse because of an exodus of doctors.由于医生大批离去,医疗系统面临崩溃。
  • Man's great challenge at this moment is to prevent his exodus from this planet.人在当前所遇到的最大挑战,就是要防止人从这个星球上消失。
学英语单词
administrative readjustment
alaudidaes
arshile gorky
Balagne
Biver
Bulzi
buzzes in
cardmember
castlemaine
certified instrument
colletotrichum rhoinum tassi
complection
concentrate feed
configuration data control
constrained kinematic chain
consummateth
continuous casting
curly-haired
cutaway dive
depth-chargeds
Dictyoclostus
Domodossola
doxing
El Higuerón
electrically-operated platform truck
erosion mountains
erythroblastotic
erythropoeisis
feeler spring pin
Finucane Ra.
fix point
garment leather
generator unit stator
gourlie
greywacke schist
H.D.L.W.
hartnell
herdmate comparison
high volume sampler
hollow packing
hoogenband
humetted
incisiver suture
inviters
language data
line frequency generator
link-local address
long-term government bonds
Länsi-Suomen Lääni
marine atmosphere corrosion-resisting structural steel
maritime buoyage system agreement
methylone
middleburgh
mindelo
Mošnov
nanningensis
non-pensionable supplements
nondeterministic finite automation
Orthosiphon spicatus
overrunner
Parophidion
perfumes
pilosis
plaster jeckets
Podkarpackie
posthabit
power-downs
presidentiables
proportional intensifier
pyridizin
pyrometric cone equivalent value
rail cambering machine
regular surface gauge
Roundwood Res.
scarlatina latens
shanghaiing
skin irritation assay
spaghetti strap
St. Gervasius' disease
stantly
steam turbine rotor
strong gluten
subfamily Triglinae
Sud, Pte.
thalamic medullary stria
the shakes
thermometer dial
thoracispinal
three-dimensional model
timeframes
tractor mounted
transposition pin
Tyssedal
u-tube hydrometer
ulcerable
vault money
Wanner optical pyrometer
water-carrying
wavelength spectrometer
whelping
yekke
yellow globe lily