时间:2018-12-26 作者:英语课 分类:美国英语听力80篇


英语课

[00:04.83]Last month, delegates from more than one-hundred nations approved the first international treaty

[00:12.54]about trade in products made by processes of genetic 1 engineering.

[00:18.00]Genetic engineering involves changing the genes 2 of living organisms.

[00:24.24]The new agreement did not end the worldwide debate about genetically-engineered crops, however.

[00:32.00]Four agricultural experts discussed the issue at a recent conference in Washington, D.C.

[00:39.71]Gordon Conway is an ecologist and president of the Rockefeller Foundation.

[00:46.79]Mister Conway said he believes genetically-engineered foods might help to end world hunger.

[00:55.07]But he says the risks from such crops are important to consider.

[01:01.02]Mister Conway says the issue is whether some genes may accidentally spread to other living things.

[01:09.85]He says this could lead to the creation of strong plants or insects with a resistance to the treated crops.

[01:19.10]He also is concerned about the effect of genetically-engineered plants on the soil.

[01:26.67]Patrick Holden is director of the Soil Association of the United Kingdom,

[01:32.21]a British group that supports the idea of chemical-free agriculture.

[01:38.51]He told the conference that his group's opposition 3 to genetic engineering has been growing since the early 1990s.

[01:48.30]He says this opposition is based on possible threats to the environment and human health.

[01:56.87]He also says the technology denies choice to producers and consumers and is not necessary in developing countries.

[02:07.56]However, a leading Kenyan environmentalist dismissed the idea that developing countries do not need genetically-engineered crops.

[02:18.76]Calestous Juma is director of the Center for International Development at Harvard University in Cambridge, Massachusetts.

[02:29.60]Mister Juma says genetic engineering could help improve crops and people's diets and increase money for farmers.

[02:39.50]It could also help end hunger and reduce the number of poor people in developing countries.

[02:47.26]He says many nations already have policies for using the technologies in a safe way.

[02:55.41]Wes Jackson of the Land Institute in the state of Kansas says some good could result from genetic engineering research.

[03:05.13]But he says most efforts to redesign plants probably would fail.



1 genetic
adj.遗传的,遗传学的
  • It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
  • Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
2 genes
n.基因( gene的名词复数 )
  • You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因,所以能够活得很长。 来自《简明英汉词典》
  • Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪
3 opposition
n.反对,敌对
  • The party leader is facing opposition in his own backyard.该党领袖在自己的党內遇到了反对。
  • The police tried to break down the prisoner's opposition.警察设法制住了那个囚犯的反抗。
学英语单词
accounts of national income
affettuoso
air-cooled
Antignac
Audio Engineering Society
automatic headlight dimmer
backsiding
beam bleaching machine
beleville
bird-footed
black check
blaw-knox process
blumstein
bob up like a cock
brevity code
Burgersfort
byerley
canceliers
civil affairs agreement
coazervation
cystaphos
Danner process
Delbastaille's method
dimension of a projective variety
double-column qualitative method
emergency safety evaluation
emmel
Ervine
euroexpress
excute statement
exit probability
fire-extinguishing water tanker
fleet satellite communication system
fly honeysuckles
for android
forcing up price
FVA
goldflame
grandmamma
grassland agriculture
header point
hels
hydropower plant
ignoto
index covered warrant
inherent resolution
inulaceae
itinerant electron
JCL-66082
klabin
knotter jaw spring
kto
litch
locomotive kilometrage
Loiolite
loudspeaking receiver
Mallotus garrettii
man drawn truck
mechanokinetic
medium and small-sized enterprises
methyltribromsalol
micro projector
minirefrigerator
misportrayed
mm. lumbricales
modified(Mendelian)ratio
odd man out
oil-tempered
ortyostereoscope
Padada
panagraphic
papyri
particle encounter
pharmacokinetic antagonism
pole lathe
profiling mechanism
purchase parts
radio-operated crane
red lane
resistance electrode
retention bonus
Safe Berth Clause
score paper
service definition
shebas
singleturn extraction
sit upon
sr (surveillance requirement)
stupefies
superior aberrant ductules
surbeate
synthetic sake
taltalite
tape input/tape output
thermo-protective sight glass
transistance
underground part
wax vent hole
weakly typical sequence
wiping waste
without all peradventure