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

[00:00.86]Another endangered species 1,

[00:02.83]the Yangtze Dolphin,is China's only fresh-water

[00:06.53]dolphin and is sometimes called' the panda

[00:09.35]of the Yangtze River'because it is so rare.

[00:13.11]its numbers are decreasing for several resons

[00:15.96]including the pollution of the river

[00:18.11]and the fact that they are often caught

[00:20.11]and killed in fishermen's nets.

[00:22.51]Hunting in the past also played a role

[00:24.97]in rapidly reducing numbers.

[00:27.51]Education programmes have been set up

[00:30.26]but much more needs to be done

[00:32.20]to protect these animals.

[00:34.71]The tiger is a species under severe threat.

[00:37.94]In the 1950's,

[00:39.43]there were eight sub-species of tiger,

[00:42.25]but three are now extinct 2.

[00:44.71]All five remaining species are endangered

[00:47.54]and although they are protected,

[00:49.38]the total number of tigers worldwide

[00:51.95]has dropped to 5,000.

[00:53.76]Why is this?Tigers are killed by hunters

[00:57.40]because it is falsely believed

[00:59.09]that parts of the tiger's body

[01:00.78]are good for people's health.

[01:02.91]Another reason for numbers have decreased

[01:05.10]is the loss of the tiger's natural habitat.

[01:08.06]To save these beautiful animals,

[01:09.97]we need to stop illegal hunting

[01:12.29]and extend 3 conservation programmes.

[01:12.29]



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 extend
v.伸开;展开,伸展;扩大;加大
  • Can you extend your visit for a few days more?你能把你的访问再延长几天吗?
  • The examinations extend over two weeks.考试持续两个星期。
标签:
学英语单词
adriene
and gates
anti communism
artist
autoimmune encephalitis
basiliscan
Berman
bienengift
blackcap(raspbeery)
Boû Rjeïmât
centi-joules
CFC-C
chersonesos
compiler control line
compulsory joinder
conductor rail support assembly
confidable
cyclic interrupt
deadweight capacity
developed diagram
digitises
electric output
feedback error control
filate antennate
gateway newsgroup
genetic sciences
Gozaru, Darreh
ground vibration
Guerin's fracture
holi
homobasidiomycete
Hooppole
in manuscript
incurablenesses
internal occlusal rest
interperiod allocation
intersystem
intraerythrocytic
Iskitim
Kapteyn Selected Area
Keynesian model of income determination
kovatz
landscape architecture
lehman brothers
lonicera alsenosm-oides graebn.
mimetic muscle
mix preparation
Murray (River)
new application
nonrelativistic kinematics
Nugget Pt.
Oksam
open - pit mine
partial variance
pelicano
pentandioic acid
Petromyzoniformes
picenyl
populus adenopoda maxim
posterior scrotal branches
power product theorem
primus inter pares
proctotresia
ready made dolphin
repeated hardening
Revolutionary People's Liberation Party
rhonchus
Sablūkah, Khāniq as
sagittal ring
shaft axis
sine voltage
single-main distribution
sky-shouting
soleaeform
spread rate
staff auditor
starred identifier
stassen
sub strut
subsidiary food
Sulcus glutealis
surface cavitation
swirlingly
tephromela atra
tephros
thermic insulant
thermodynamic factor
Thesprotiko
Transderm-V
turn her back upon
twin tail
uncultivate
unformulated surfactant solution
vaina
variable time fuse
vertec
vertrag
vest buster
volatilely
wild chervils
Wolffian mesentery
Yanguas