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
-just
17-hydroxycorticosteroid
40
absorbent papers
Actinidia polygama
alphanumeric characters
another story
aquileges
Armenophobes
bassen'd
basting brush
berberidaceaes
biennia
Brinell microscope
bung down
chewing insect
co2 incubation
computer simulation for dyeing process
Coogoon R.
Cuttack
definite proportion
dicranella rufescence (dicks.) schimp.
esse
evomitation
EWNP
exhalants
extruded aluminum
final-salary
friction gearing
general bill of lading
germon
grouping of population
hairspring type
helianthus laetifloruss
heterodimerises
high level efficiency
Home Bias
in a ratio of
jumping wheel jumper
keep one's eye upon
kind of work
kiss of life
labeled common block name
liquid penetration inspection
Lučani
m.c.
Machiavel
Malyy Yenisey
mammy wagon
matrix in block form
metaremarks
misrouteing
Mitomi
modal notation
modulo reduction
monniker
multicuspid teeth
national enquiry
olibene
optimal control equation
orbital branch
outsiderhood
overhead counter shaft
overmodulated
pantograph frame
penirolol
plant lectin
plate and tube condenser
plea to indictment
Porm
potassium octaborate
preachership
purpura of the newborn
resmelting
rockallia jongkuei
rustle ... up
sacred kingfisher
sand preparation plant
Sao Jorge do Limpopo
screamadelicas
secting
seppanen
series-parallel starter
shift register generator
shoal detector
social indicators movement
Spurway syndrome
stair turret
steady-state approximation
surface shape
tall gallberry hollies
temporal and spatial variation
tetraphenylborates
throat-paint
to snake
triethylammonium
Tussabid
usles
veggiedog
vestibular branches
yellow trefoil