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(237) / 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(105) / 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(113) / 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(196) / 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(134) / 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(445) / 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(151) / 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(109) / 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(197) / 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(186) / 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(177) / 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(183) / 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(176) / 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(166) / 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(402) / 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(174) / 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(193) / 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(166) / 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(128) / 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(349) / 评论(0) 分类 英音模仿秀
学英语单词
accustomary
adjustment of business income
alteration of angles
Aniten
annealed zone
anticus tetanus
backing-up screw
be black and blue
bicomponent struture
butyl borate
Calleja's islands
Canelones
carbonic
Chastykh
Chiquita, I.
contract of annuity
cotton-dust asthma
covariance stationary process
cricoarytenoids
cross charging
cryoprotein
dagdas
damp-drying
dephycercal fin
deprivals
dexpanthenol
dialoguer
domain maritime
ear lobule
emerging concept
endocrine dyscrasia
endomorphism of a module
ethnic population
evaza nigripennis
felspathic
firmographic
gallon
gopec
goum
gripping zone
hayracks
heptadecamers
high density tape
hungarian capitals
Hurstbourne Priors
implied consent
invectives
Jacobson's retinitis
Jatrophone
javelot
klimov
land-flora
leaf insect
light-dues
long-term fix area
made a god of your belly
Meinicke reaction
microtubule-associated nonmotor protein
mini-load
Mlombe
modocoll
must fill
myohoji
nanton
near-exhaustions
neon tube saw tooth generator
neuroglioma ganglionare
not give a pin
notice of assignment
nummularius
out-side forward outside back counters
permeance transducer
polymer solution quenchant
posterior nares
precision gas cutting machine
push tugs
reinvestment
rhulen
S.W.A.K.
sabaea
sandwich-board
satellite cloud photograph
Saticoy
selected class
sight glass with washing device
small stowage
snow white and the seven dwarfs
sobere
spindle-mobility
submerged speed
substantivist
substoping
tape search unit
tea-room
trioxys (binodoxys) indicus
unthroughfareness
Valley Forge
vena cardinalis posterior dextra
wet calorific value
wire chisel
ye-u (yeu)
yokoo