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(266) / 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(113) / 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(126) / 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(207) / 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(144) / 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(465) / 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(162) / 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(119) / 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(206) / 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(198) / 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(187) / 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(196) / 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(188) / 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(188) / 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(422) / 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(189) / 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(202) / 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(175) / 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(136) / 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(359) / 评论(0) 分类 英音模仿秀
学英语单词
a-dancing
AEOD (analysis and evaluation of operational data)
age at sexual maturity
antall
attrition test
baldachin
Bangania, Rap.de
bioalkylation
bladderworms
bunk
CEDB (component event data bank)
Ceglie Messapico
Centrocythere
chart of percentage comparison
Clica
colorable graph
comparative finance
cross detection
cultured pearls
depanelized
designed elevation
diamond chisel
dimesna
direct line
dry mixer
echocardiograph
electric sprayer
emission steam
extra still
faradisms
feed tape
floating fixture
fouilloux
gate turn-off thyristor assemble
genus Maxostoma
genus Seismosaurus
glory box
grising
hen-hearted
hernial lipoma
highest-risk
houttuyninum sodium bisulphite
howps
hubbie
humulite
Hydrometavauxite
Hydronalium
impedance
impostures
installment credits
intersection of two sets
keep sb amused
kurse
loan leverage
lumbar myalgia
metal-bashings
methylactinodaphnine
MFAC
mockingbird
nail trimmers
nonatheists
Oompa Loompa
Ophism
oswy
overfall spillway
oxylupanine
plushest
power circuitry
preserve peace
pure-tone
radiation dose transducer
re-upholstered
red-backed mice
sand plum
scanner aerial image
Scott's Emulsion
sedentary polychaete
self-optimalizing
seminudity
sila-explosive
site class
slant chute
spud driving and pulling condition
squaring-type channel
stock issue cost
Story.
subcutaneous tissue
sunhills
suspension homomorphism
symposium on court management
theography
toll train switch
torelon
transfer agent
transitive functional dependence
trash pickups
unbetoken
undamped current
vas
well-informed
wheem
Ytymdzha