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
5-flurocytosine
a-tishoo
aeroaspiration
Appenweier
Asprimox
astronomical coordinate measuring instrument
atom shell
azzle-tooth
bofore bottom dead center
bowl
bracemate
chairholders
chilling rolls
Chinese gall aphid
colour comparator pyrometer
continued development
contractile fiber cells
creosote carbonate
daunsel
diametrical curve
do you have a girlfriend
East Berliners
embedded part of coil
euro-asian
excision of lipoma
fancy skip twill
friction unemployment
frontiers
gamma aminobutyric acids
gas discharge colour method
gateses
Gilson's solution
graphophones
grooved roll
high tide elevation
holding cooler
hydrogen system
hymens
inverting parametric device
irreversible magnetization
Kapala Batas
Katusa
keep one's promise
kelston
lay of cloth
libertyman
lluminated rocket
machine function
make you
maremusset
Masticho, Akra
memoirs of a geisha
merwomen
metho-
monomphalus
mud logging
Naro, Fiume
non-judgmental
nut mill
occidentality
off-line stroage
off-settings
Pediculus capitis
pentops
Phenaloin
plan development
polshe
Pordim
preferred shares
pseudoselerema
quasistatically
reflective materials
relentless
reload module
remercying
rodhocetus
safe investment rule
safe low power critical experiment reactor
sanidal
scabbardless
sea parrots
secondary air ratio
settelmier
shadow picture
slow-neutron chain reaction
spelter pot
stain sync
strata behaviors
subdiscipline
tender deadline
Thalictircine
thread take up lever stroke
tragulus javanicuss
valdivieso
Very pleased to meet you
what's popping?
wild dogs
wonderfest
working viscosity of fluid
xerophthalmia
zapato
zymology