时间:2018-12-13 作者:英语课 分类:北师大版高中英语模块8(选修)


英语课

[00:01.94]Fresh water

[00:03.71]Rivers, lakes and wet-lands are sources

[00:06.23]of fresh water,not only for humans,

[00:08.50]but for wildlife too.

[00:10.35]Due to pollution and climate change,

[00:12.60]about 50% of the world's fresh water habitats

[00:15.09]have been destroyed in the last 100 years.

[00:19.15]And more than 3 billion people

[00:21.04]in poor countries

[00:22.31]do not have enough clean water.

[00:25.35]The WWF works hard to protect fresh-water

[00:28.53]environment from pollution and to help people

[00:31.87]in developing countries have access to safe,

[00:34.93]clean water.

[00:36.58]Nobody knows exactly how many species 1 of plants

[00:39.27]and animals there are on Earth.

[00:41.45]Scientists say that there would be as many as

[00:44.08]15 million different species.

[00:46.06]Sadly, many species have become extinct 2

[00:48.92]and many are in danger of extinction 3.

[00:51.63]But thanks to the hard work of organizations

[00:53.59]like the WWF,

[00:55.55]more and more have a chance to survive.

[00:57.23]



1 species
n.物种,种群
  • Are we the only thinking species in the whole of creation?我们是万物中惟一有思想的物种吗?
  • This species of bird now exists only in Africa.这种鸟现在只存在于非洲。
2 extinct
adj.灭绝的,不再活跃的,熄灭了的,已废弃的
  • All hopes were extinct.所有希望都破灭了。
  • Dinosaurs have been extinct for millions of years.恐龙绝种已有几百万年了。
3 extinction
n.熄灭,消亡,消灭,灭绝,绝种
  • The plant is now in danger of extinction.这种植物现在有绝种的危险。
  • The island's way of life is doomed to extinction.这个岛上的生活方式注定要消失。
标签:
学英语单词
A7S
ADP-sulfurylase
advance into
alkaline catalysis
analyphoscope
Ancid
andrographus paniculata
aortic nerve
attribution theory of ability
aurora brightness
backwashed
bacteriological contamination
baghouse precipitator
ball-bustings
beguily
beratok
bimatrix game
bishopstones
bocksputite (boksputit)
bookplates
borickites
camera tilt down
cataphasias
cepharanthine
CIM system
compulsory serviceman
cone mouthed
control division header
conventionally-powered submarine
core-type traction transformer
crab bolt
debunkery
Delaware
descriptive title
devil-may-cares
disseizins
earl
electropherotypes
elkes
eosentomon coruscoculi
fascine roll
field intensity map
flame r proof mine locomotive
foreign body giant cell
fruit apex
fullburn
Gastrocotyle
general osteitis
general property tax
give somebody the cold shoulder
Globigerinacea
gold-bearings
impedence matching
IP (industrial production)
jubayl
Kilian's pelvis
lengest
leukopenia following radiation
lightened floor
Llangybi
lochia sanguinolenta
lucullean banquet
lux(o)meter
lysophospholipids
MacDougall
martius
master reference
medical hybrids
MIS structure
native bank
nogoer
pasta zinci oxidi mollis
patent application service
Pedicularis infirma
phenacovolva angasi
pileolaria pistaciae
pilot reaming bit
pipeline register address
popularized variety
prevailing torque
ptinging hair
quyn
regular Cartan space
rezbanyite
ring wall
rocky reef
saber-legged
sampled threshold
sanctionism
score-sheets
secting
sequence of reactions
shuttance
sockle
spatch
splitbottomed
Symplocos botryantha
texture class
triethoxybutane
vainquer
vandoorn
versoke