时间:2018-12-01 作者:英语课 分类:大学英语六级听力短文


英语课

Controling Cancer


There are two main causes of cancer: heredity and environment. We can do nothing to change our heredity, that is, the basic physical characteristics that are passed on to us by our parents. However, we can do a great deal to control our environment, which may account for eighty to ninety percent of all cancers. Enviromnental pollution can be divided into two kinds: personal and nonpersonal. Personal pollution may be defined 1 roughly 2 as unhealthy habits such as smoking, drinking, and eating the wrong foods. Clearly, with enough will power we can control this personal environment. nonpersonal pollution, on the other hand, refers to those things which are beyond our individual control. One example would be industrial pollution, which is very hard to control because of the expense involved. It would be expensive in terms of profits and, perhaps, jobs.The American automobile 3 industry, for example, resisted the law requiring smog-control devices 4 because it feared the added expense would reduce profits. Nevertheless, some laws protecting the environment have been quite successful in reducing pollution.



1 defined
adj 定义的; 清晰的
  • These categories are not well defined. 这些类别划分得不太明确。
  • The powers of a judge are defined by law. 法官的权限是由法律规定的。
2 roughly
adv.概略地,粗糙地,粗鲁地
  • If you treat your coat so roughly,it will be worn out soon.你如果这么糟蹋你的外套,它很快就不能穿了。
  • The island is roughly circular in shape.这个岛屿大致是圆形的。
3 automobile
n.汽车,机动车
  • He is repairing the brake lever of an automobile.他正在修理汽车的刹车杆。
  • The automobile slowed down to go around the curves in the road.汽车在路上转弯时放慢了速度。
4 devices
n.设备;装置( device的名词复数 );花招;(为实现某种目的的)计划;手段
  • electrical labour-saving devices around the home 节省劳力的各种家用电器
  • modern labour-saving devices such as washing machines and dishwashers 诸如洗衣机和洗碗机之类的现代化省力设备
学英语单词
2-ethylhexyl peroxi-dicabonate
a one horse town
a-ketoacetic acid
above-stairs
abreak
acceptable conditions
air vented tumble dryer
altitude difference
Ave, R.
averse
Avogadro, count Amedeo
barrier film rectifier
ben
bias control circuit
bidirectional drive
bostrychid
ceasefires
Chebyshev polynomial of the second kind
Chechen', Ostrov
Christianization
control and dispaly unit
criticizable
dinarthrum taiwanense
discharge electrode
dp's
dust collecting plant
eileen chang
exchange words
expenditure for military establishment
Fiesta Bowl
focis
fused salt medium
FWD & REW reel stop detector
garage-sale
geniohyoids
genus Nauclea
hauns
heurn
hirdum-dirdum
homokaryons
Hueter's maneuver
hyperchrome
impulse functions
in animal body
intasuchids
interior focusing lens
isabelles
Isocarboxazide
iustices
Judaeo-Spanish
juglandifolia
katalase
kentishes
liquid cladding
marble intarsia
mechanical ground support equipment
miethe
money position
mousselines de soie
multi-mission underwater remotely operated vehicle
multiplier time division modulation
naevi of the nail matrix and bed
network of workstations
orange-wood stick
oryctocoenose
planet-striking
post-ictal
preliminary enquiry
prides of california
pseudohistory
psychojargon
puangs
read verify
rechecks
rolling-bearing
saddening
sarcocystoid
semi-controlled mosaic
service substance
space decoration
step strobe marker
submedian vein
that is the bottom line
thermologist
throat section
tidal impulse
to what extent
topkapis
transportation of live fish
ultrasonic level ga(u)ge
underground cooling
unmanifesting
ventral anterior nucleus
voice interruption priority system
washing amalgam
watchnight
water cooled impression tray
window for finance activity
wired logic control
wrasses
zero speed position
zilascorb