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
adelogenic
angiosclerotic myasthenia
applictions
appointings
axial force of rail
baseball-related
be alive to
block cipher system
burgeri
cavenger jig
celling rate
cheongsam
chive
chrome bleaching
chrysanthemaxenthin
closing error in coordinate increment
coleosporium clematidis barclay
contact loss
continuous-wave interference
cooperative enterprises
data collection facility
dessert fork
dysluite
electrophoresis force
Epist.
erratic flow
event horizon
excitancy
fillmass chute
flat-platform body
floor-operated crane
goldchip
Gui Xian
half a loaf is better than none
harry
heat in the exterior
hidden reserve
hydrochlorothiazides
i-telle
Indigofera muliensis
informatical
information quantity
itbs
jacky 2,Jacky
kickiest
Kivitoo
lanting
law of independent assortment
lionskin
loading sequence
make system
mohnyins
morpholinobiguanide
moveout correction
myelosclerotic
naturalistic conception of definitions
Neocinnamomum
New Forest pony
non-deterministic space complexity
non-self-luminous object
option buyer
patchlike
peak magnetizing force
phagostatin
phase-shifter
physical loss or damage
pole-plate
powersafes
pump discharge manifold
pushing rod jack
Pyrenaria
quaking puddings
rackingly
radar equipment feeding
residual cake valve
resistivity sounding configuration
Riccitensor
sea monkeys
secondary acid
sensitive plant
separate regenerative chamber
severe heat stroke
short land memo
ssfa
stress-relaxation modulus
sualci venosi
suckled
take care tonight
tender chafing block
thymolytic
timed indefinite shipment
top needle
transition process
transparence diaphaneity
undefeatableness
unionless
unit of budget
valvulotomies
without much further ado
WSBA
Xuan Phu