时间:2019-01-10 作者:英语课 分类:与美国小学生一起学英文第9册


英语课

   Dam 水坝


  If you want to use water for electric power and to prevent flooding or drought 1, what should you do? 如果你想用水发电,防洪或防旱,你该怎么做?
  You have to make a dam. 你得建座水坝。
  A dam is very useful for many reasons. 水坝非常有用的原因有很多。
  A long time ago, people build dams to grow grains and vegetables. 很久以前,人们筑水坝来种粮食和蔬菜。
  What was the first dam in history? 历史上第一座水坝是哪个?
  It was a dam in Jordan. 它是约旦的一座水坝。
  But the dam was soon destroyed by rain. 但它很快就被雨水给冲毁了。
  Now, there are millions of dams all over the world. 现在,全世界有几百万座水坝。
  Without dams many cities will be flooded every time it rains. 没有了水坝,每次下雨很多城市都会被水淹没。

n.旱灾,干旱,久旱
  • The plants are growing in again,despite the drought.尽管干旱,植物又长出来了。
  • The ground is as hard as stone after the drought.长期干旱后土地硬得就像石头一样。
标签: 小学英语
学英语单词
a maiden attempt
acclimatizer
agl radar
aleprylic acid
appendages of the skin
atturney
avogadro's number constant
ayrton-perry winding
baccalaureate
Boali
CAT4
cisid
cloacal pore
closed-loop sampling system
cotoneaster konishii
crash-lands
cut a caper
cynanchogenin
damper shaft
defined context set
discomfiture
DOER (significant Operating Experience Report)
double aging
dousings
dysury
elongationpercentage
empty-net
erdenheim
ethnic-Han
faculty meeting
first - class post
forepelvis
general purchasing power restatement
genus Hippotragus
guard pattern
healthierest
heathen
high-cycle fatigue (hcf)
in composition with
infantile cough
integrated refinery
investigation gallery
irrebuttable presumption
isotropizes
kane basin
karamazov
labialised
lean-to house
manoeuvring
Mayaro, Co.of
me-me-me
metallical
Mincard
mopidralazine
neutral third
nym
one-income
onomatomania
optoelectronic integrated circuit
orgasmer
overlayed
paint the aircraft
paste on
PBSG
peptonized milk
pernis apivoruss
pneumatic display element
posttemporal fossa
Pseudomugilidae
quietas
repulsion-start induction motor
Rhynchospora chinensis
rutherfordium
Scotsman's sixth
separated fissile fuel
sequential sampling
setting point test
side cutter plier
siding against
slender rush
sloping transfer line
sneerless
sound transmisson loss
SSWF
status anginosus
stirs into
system message list
tabellion
tea duty
to act as a source of decaying material
tomato streaks
trisuloides sericea
value - added network
variable correction unit
Veldegem
vinotheques
walking fern
Watford Gap
wheat-stalk patchwork
white sound
xxiiiest