时间:2018-12-28 作者:英语课 分类:趣谈英语


英语课

Pre-Listening Vocabulary



scavenger: one that searches for or feeds on discarded or dead matter
carcass: dead body of an animal
take for granted: to not appreciate someone or something
antibiotic 1: a type of drug that kills off tiny, harmful organisms
extinction 2: the complete loss of a species
stench: a terrible smell

Vultures Aren’t Just Ugly Birds


 


Vultures are often considered ugly and smelly. These scavengers feed on fresh meat and rotting carcasses. Their bare heads and necks prevent bacteria from getting buried in their feathers. The service vultures provide is often taken for granted. In India, vulture species have declined by up to 99% in recent years. An antibiotic drug given to cattle and other livestock 3 caused the near extinction in India. The missing birds of prey 4 did not go unnoticed, however. Without the vultures to remove the sick and dead animals, the stench of carcasses became unbearable 5. Rabies and other diseases became a major problem due to an increase in rats and wild dogs. Now that the drug has been banned for use on livestock, Indian vultures are getting back to the important job at hand.



1 antibiotic
adj.抗菌的;n.抗生素
  • The doctor said that I should take some antibiotic.医生说我应该服些用抗生素。
  • Antibiotic can be used against infection.抗菌素可以用来防止感染。
2 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。
3 livestock
n.家畜,牲畜
  • Both men and livestock are flourishing.人畜两旺。
  • The heavy rains and flooding killed scores of livestock.暴雨和大水淹死了许多牲口。
4 prey
n.被掠食者,牺牲者,掠食;v.捕食,掠夺,折磨
  • Stronger animals prey on weaker ones.弱肉强食。
  • The lion was hunting for its prey.狮子在寻找猎物。
5 unbearable
adj.不能容忍的;忍受不住的
  • It is unbearable to be always on thorns.老是处于焦虑不安的情况中是受不了的。
  • The more he thought of it the more unbearable it became.他越想越觉得无法忍受。
学英语单词
abrasive for cutting and grinding wheels
agricultural fabric
antenna coverage
antibutyrylcholinesterasic
atom-like
audiler
beer-lambert's rule
Brea Reservoir
Cao Daist
chemical substances
Chile nitre
clearing summer-heat and tonifying Qi
coplanar force system
costopleural
count value
crystal bar photocell
current-conducting coating
cusped index
cut locus
cybister tripunctatus
daveyton
differential chain block
Diosma succulenta
direct picture television
discount rates
dowel rod
drift fisher
duplication of ureter
dyeing science
elephantine
epicurial
epoxyeicosatrienoic acid
external function call
familial polyposis coli
fastness to bleaching
fretts
full-scale experiment
glucosteroid antagonists
gundy-gut
have a bone to pick with sb
hemangiona of scrotum
homicide in self-defence
indenize
integrated injection logic processor
irons
isolated subsystem
kesterites
kick up its heels
lumbosacral cord
major route
make up pump
malarialist
master segment
master thesis
multi-fiber array
natural polymers
outline font
Panhard rod
paraisoes
permanent assets
phantasm
Plateaux, Rég.des
poreger
postulation
potassium arsenide
puggarees
rack-and-gear jack
radiculoneuritis
range finding
ratface
reemploy
reexport trade
regulation discharge of waterway
Reithrodontomys fulvescens
retrorectal
Rhododendron liliiflorum
ribbonbearers
rocket-assisted take-off gear (ratog)
Rosenheim's enema
runtime accumulator
salt stone
sitan
spit and polish
squamous cell papilloma of nose
subpyramidal
suck sb off
supergraviton
supreme council
target terminal
teledish
tetrabenazine
Thelypteris palustris pubescens
Torre do Terranho
twain
valve-seat
vaneless vaned diffuser
Vicovu de Sus
welt feather bending machine
wife-beater
wordless
working flux
Yomadji