时间:2018-12-27 作者:英语课 分类:英语时差8,16


英语课

Guayule- A Promising 1 Crop From The Desert D:Holy guayule,Yale. Y:Holy what? D:Guayule.It's a desert-dwelling shrub 2 from the Southwest. Y:What about guayule?I never even heard of it. D:Several things.One of the most important features of the guayule plant is that it is a source of natural latex, ideal for making gloves and other natural rubber products used in the medical industry. But unlike the more common latex extracted from rubber trees, latex from guayule plants does not contain the proteins that cause severe allergic 3 reactions in some people. Y:Nice. D:But that's not all.Crop researchers have discovered that the guayule plant is a potentially valuable source of energy. After the latex is extracted from the plant, you’re left with the ground up stems and branches–called “bagasse.”Bagasse from guayule contains about as much potential energy per pound as charcoal 4.USDA chemists are working to develop efficient methods to convert bagasse into ethanol and other consumer?ready products.Guayule has a few advantages as a source for biofuel. One is that it grows and thrives in the desert. That means it can grow in areas where other crops can’t.Guayule shrubs 5 can also be harvested year?round, and require very little fertilizer or chemicals to grow. On top of that, the latex extraction process uses only water, no harsh solvents 6, so the process of producing latex and bagasse is relatively 7 clean. Y:That does sound promising.I'LL look forward to hearing more about guayule in the future. D:I suspect we will.



1 promising
adj.有希望的,有前途的
  • The results of the experiments are very promising.实验的结果充满了希望。
  • We're trying to bring along one or two promising young swimmers.我们正设法培养出一两名有前途的年轻游泳选手。
2 shrub
n.灌木,灌木丛
  • There is a small evergreen shrub on the hillside.山腰上有一小块常绿灌木丛。
  • Moving a shrub is best done in early spring.移植灌木最好是在初春的时候。
3 allergic
adj.过敏的,变态的
  • Alice is allergic to the fur of cats.艾丽斯对猫的皮毛过敏。
  • Many people are allergic to airborne pollutants such as pollen.许多人对空气传播的污染物过敏,比如花粉。
4 charcoal
n.炭,木炭,生物炭
  • We need to get some more charcoal for the barbecue.我们烧烤需要更多的碳。
  • Charcoal is used to filter water.木炭是用来过滤水的。
5 shrubs
灌木( shrub的名词复数 )
  • The gardener spent a complete morning in trimming those two shrubs. 园丁花了整个上午的时间修剪那两处灌木林。
  • These shrubs will need more light to produce flowering shoots. 这些灌木需要更多的光照才能抽出开花的新枝。
6 solvents
溶解的,溶剂
  • It is resistant to borohydride reduction in alcoholic solvents. 在醇溶剂中,它不能被硼氢化物还原。
  • Strains require special treatments for removal such as spotting with organic solvents. 要清除这些着色物质,需要特殊处理,例如:滴加有机溶剂。
7 relatively
adv.比较...地,相对地
  • The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
  • The operation was relatively painless.手术相对来说不痛。
学英语单词
abolitionists
alkadiyne
allege sth.as a reason
Amurzet
asynchronous condenser
autopayments
back-strokes
baev
bathygobius fuscus
bertins
bewig
blocksma
bugno
calceuss
cauliflower like mass
cerebrocortical
Chromvesuvian
complex sinusoidal current
condyloid tubercies
conrotary
cooperation plan
correction of water level
Couvin
cultivation of good strains of seeds
curved surface drawing
cyanethine
dalbergichromene
dam-buster
death-traps
dermatitis hypostatica
disco-like
dixiecrats
dot-blur pattern
double side band system
drug insanity
dystrophisation
electrostatic microphone
element of complex
enamelled wire wound resistor
exigendaries
Explorer Tablemount
exponentiated
export superiority
financial transaction
flase conductance
flow sight
gearlike
glass figurine
hemibrachydome
henrey
high-plasticity
Homestead strike
humolith series
inductolog
interactive graphic nesting
Ishidoriya
JeOS
jwm
kladstrup
lapponicum
magnetothermoelectrical
maormor
Merchant Marine Department
Mischabel
monster hands
multiperipheral chain
national recovery act
neomercantilist
nyamuragiras
pattern glue
periodical fluctuation
plaudits
pleiochasial
popovic
power take-off hp(pto horsepower)
precipitum
primary series circuit
process instability
Ranunculus morii
Romany rye
safety glazing
Santa's Little Helper
shaft generator system(sgs)
single rail motor hoist
solarizes
steam-bubbling type autoclave
subfibril
submunitions
syncranium
testis biopsy forceps
Toledo steel
travelling-crane
tricycles
uncontrolable
uricotelic animals
velocity pursuit laser seeker
vidor
vouchered invoice
Watheroo
Wilson chambers
wyib
Yurino