音标:[,kæti'lektrəud] ;
n. 阴极;负极

My 1) captors continue to 2) taunt me with bizarre little 3) dangling objects. They dine 4) lavishly on fresh meat, while I am forced to eat dry cereal. The only thing that keeps me going is the hope

发表于:2018-11-28 / 阅读(195) / 评论(0) 分类 疯狂英语2002年

If you know anyone who is deaf, then you know the cochlear implant has offered hope and help for some people. This next story may be the equivalence where restoring sight is concerned. While the science is very different and very tricky, the promise

发表于:2018-12-11 / 阅读(87) / 评论(0) 分类 万花筒2009年

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. When it comes to pain, its the thought that counts. Because pain hurts more when its inflicted on purpose. Or so say researchers from Harvard University

发表于:2018-12-24 / 阅读(95) / 评论(0) 分类 Scientific American(十二)月

Tree Electricity Runs Nano-Gadget A report in the journal IEEE Transactions on Nanotechnology shows that maple trees generate a small, but measureable amounts of electricity, which can power tiny devices. Karen Hopkin reports If scientists have thei

发表于:2019-01-02 / 阅读(176) / 评论(0) 分类 60秒科学

If scientists have their way, we may someday be tapping maplesnot for pancake fixins, but for power. Because researchers from the University of Washington in Seattle have found theres enough electricity flowing in trees to run an electronic circuit.

发表于:2019-01-08 / 阅读(112) / 评论(0) 分类 Scientific American(九)月

PUSSY-CAT AND QUEEN Pussy-cat, pussy-cat, Where have you been? Ive been to London To look at the Queen. Pussy-cat, pussy-cat, What did you there? I frightened a little mouse Under the chair.

发表于:2019-01-09 / 阅读(424) / 评论(0) 分类 鹅妈妈童谣

Bionic Arm Can Move, Feel Scientists are developing an entirely new type of prosthetic arm and hand that allows a patient to regain not only movement, but also the sense of touch. American soldiers who have lost limbs in the wars in Afghanistan and I

发表于:2019-01-14 / 阅读(134) / 评论(0) 分类 VOA标准英语2011年(四月)

Brain Researchers Uncover Secrets of Memory In Memorial-Hermann hospital at the University of Texas Medical Center in Houston, Neurosurgeon Nitin Tandon visits 26-year-old epilepsy patient Tyler. Dr. Tandon has placed platinum electrodes on the surfa

发表于:2019-01-14 / 阅读(93) / 评论(0) 分类 VOA标准英语2013年(二月)

By David McAlary Washington 13 July 2006 We often hear that imagining something will not make it so. But scientists have now overturned that adage, making a science-fiction dream come true. U.S. researchers have shown that a paralyzed patient can us

发表于:2019-02-03 / 阅读(179) / 评论(0) 分类 2006年VOA标准英语(七月)

An antiques collector was passing a small shop when he noticed a cat on the sidewalk out front, licking milk from a saucer. The man immediately realized the saucer was very old and valuable. He stepped into the shop with an uninterested look and aske

发表于:2019-02-07 / 阅读(161) / 评论(0) 分类 趣味英语

Jim let his dog out to relieve himself late one night. He watched some TV, and then remembered to let the dog back in. When he opened the door, he was shocked at what he saw! In his dog's mouth was his neighbor's cat, dead! Bad dog! BAD DOG! said the

发表于:2019-02-07 / 阅读(153) / 评论(0) 分类 趣味英语

A cat caught a cock,and took counsel with himeself how he might find a reasonable excuse for eating him.He accused him of being a nuisance to men,by crowing in the night time,and not permitting them to sleep.The cock defended himself by say

发表于:2019-02-07 / 阅读(160) / 评论(0) 分类 趣味英语

A certain cook,rather more educated than his fellows,went from his kitchen one day to a neighbouring tavernhe was of a serious turn of mind,and on that day he celebrated the anniversary of a friend's death-leaving a cat at home,to guard his

发表于:2019-02-07 / 阅读(151) / 评论(0) 分类 趣味英语

Once upon a time there was a sleek tabby cat.She lived in a small house in the town with a handsome young man.He was always very kind to her.He gave her milk to drink and pieces of fresh fish and meat to eat.He let her play in the garden duri

发表于:2019-02-07 / 阅读(145) / 评论(0) 分类 趣味英语

Dick and His Cat I Once there was a boy called Dick. He was very poor: his father and mother were dead and he had no friends to help him. One day he heard some men speaking: one man said, I shall go to London, for London is a very big city, and its s

发表于:2019-02-07 / 阅读(363) / 评论(0) 分类 趣味英语

An old woman had a cat. The cat was very old; she could not run quickly, and she could not bite, because she was so old. One day the old cat saw a mouse; she jumped and caught the mouse. But she could not bite it; so the mouse got out of her mouth an

发表于:2019-02-07 / 阅读(151) / 评论(0) 分类 趣味英语

There were many mice in a house. The man of the house got a cat. The cat killed many of the mice. Then the oldest mouse said, All mice must come to my hole tonight, and we will think what we can do about this cat.' All the mice came. Many mice spoke,

发表于:2019-02-07 / 阅读(174) / 评论(0) 分类 趣味英语

TVs are more useful than radios. From TV you can see and hear what is happening in the world. However, radios are not disappearing. They are still with us. And the number of listeners is becoming larger. Do you know why? One reason for this is the in

发表于:2019-02-13 / 阅读(146) / 评论(0) 分类 英语作文

Science and technology 科学技术 A mind to walk again 一个让残疾人重新站起来的伟大想法 A trial of thought-controlled robotic legs is taking its first steps 用思想控制的机器人腿已经开始研制 ANYONE who saw Claire Loma

发表于:2019-02-16 / 阅读(111) / 评论(0) 分类 经济学人科技系列

模仿文本: Brandy, speaking there, had suffered from a severe depression resistant to all previous forms of treatment. So had Andrea, whom you heard before her. John, by contrast, has a quite different illness, Parkinson's disease. But all three

发表于:2019-02-23 / 阅读(327) / 评论(0) 分类 英音模仿秀
学英语单词
.aiff
alota
altitudinal acclima(tiza)tion
analogue indicating instrument
antagonistic microorganism
at-once
banker's reimbursement credit
bass-reliefs
biokerosene
buffer circuit
Cangan
cash collections
cerosic acid
characteristic curve of photographic emulsion
chemo-antigen
Chinese character wire impact printer
CIIP
close arrest
clowtch
co-creation
Communication satellite
compartmentalise
cone filter
crude forms
decoy cut
demand
direct entry
diurnal station
dmard
ecofacts
eliminating the pathogenic factor
elkton
Eugenia aromaticum
euphorbia esula l.
extraordinary income
fcl.
floor sealer
flyingbelt printer
forceps occipitalis
form of the physical store
Fulton zinc process
genus Uropsilus
glazed thread
hair line finish
haloalkane suppressant
haneman
Hasmonean Dynasty
have ... in hand
headstripe
heterorhabdus pacificus
high-speed differential protection
highfields
hood release lever
ictalurus punctatuss
incomplete metamorphosis
infrared dispersion
kroci-
legal problems
Ligularia japonica var. scaberrima
Lisospasm
long and heavy goods
louey
magnetooptics
manit
master blade
mmunodeficiency
noise radar
non structure
noncactus
omnigender
ophiobollin
phenotypic selection differential
preroast furnace
priority calculation limits
protection of property
rabbit-warrens
riebers
risk factors
runcinids
schnitzler's syndrome(chronic urticaria with macro-glogulinemia)
septal gingiva
sigmafon
sillyness
single-step
solid angles
source surface distance
sphere pendulum
straight mineral oil
swirl-chamber engine
tantalum target
tape length indicator
telestations
Tiktaalik roseae
to what degree
Tripalstannite
TSAAB
urethans
v-very
value for money audit
wide angle lenses
Wijs' special solution
world perspective