视网膜锥,视锥

Grasp the 1) cone with the right hand firmly but gently between thumb and at least one but not more than three fingers, two-thirds of the way up the cone. Then 2) dart swiftly away to an open area, aw

发表于:2018-11-28 / 阅读(249) / 评论(0) 分类 疯狂英语2002年

第一章 视器 Chapter 1 Visual Organ accessory organs of eye 眼副器 adipose body of orbit 眶脂体 aqueous humor 房水 bulbar conjunctiva 球结膜 central artery of retina 视网膜中央动脉 chambers of eyeball 眼房 choroids 脉络膜 ciliary body 睫状体 ciliary

发表于:2018-12-05 / 阅读(196) / 评论(0) 分类 医学英语

[00:00.00] Unit 4 In my classroom [00:05.20]A Point and say. [00:09.56]Look at the board.Eleven,twelve,thirteen,fourteen,fifteen. [00:29.34]Sixteen,seventeen, eighteen,nineteen, twenty. [00:43.39]Look at the board.Eleven,twelve,thirteen,fourteen,fift

发表于:2018-12-12 / 阅读(140) / 评论(0) 分类 小学英语(深港版)第三册

Bring home a bucket of fried chicken and you may find that people have strong feelings about which part of the bird is best. Well, scientists at Washington University in St. Louis say the answer is: the eyes. At least when you compare them to our own

发表于:2018-12-24 / 阅读(116) / 评论(0) 分类 Scientific American(二)月

Even a visit to the grocery store can overload the senses. It's noisy, bright and smelly. The nose is working overtime. High up inside, specialized nerves dangle in the airstream. They detect chemicals in the air and send an electrical signal to the

发表于:2018-12-30 / 阅读(157) / 评论(0) 分类 国家地理2007年

For many of us, walking in the rain can be a pleasant and even soothing experience. For those of us who wear glasses, though, drops of water on the lenses and obscured vision can have us running for c

发表于:2018-12-31 / 阅读(134) / 评论(0) 分类 有声英文阅读

吃鸡肉时,你知道鸡身上的哪个部分是最好的吗?科学家的回答是:眼睛。科学发现,鸡的视网膜锥(体) 数量比人类多,因此可以感知更多的色彩。 Super Chicken Vision Bring home a bucket of fried chic

发表于:2019-01-02 / 阅读(140) / 评论(0) 分类 60秒科学

Two studies of perception: the retinas of depressed people are far worse at responding to contrast; people doubt statements more when the speaker has a foreign accent. A couple of studies on perception. First, theres now visual data to back up the id

发表于:2019-01-02 / 阅读(118) / 评论(0) 分类 60秒科学

​Apple has said that its latest computer operating system, Mavericks, is available free of charge. The California-based company made the announcement Tuesday at an event in San Francisco. 苹果公司表示,其最新款的电脑操作系统Maveri

发表于:2019-01-05 / 阅读(112) / 评论(0) 分类 CCTV9英语新闻2013年10月

A couple of studies on perception. First, theres now visual data to back up the idea that everything looks kinda gray when you feel blue. Researchers examined how the retina responds to different black-and-white contrast situations. They did the test

发表于:2019-01-08 / 阅读(148) / 评论(0) 分类 Scientific American(七)月

By Melinda Smith Washington 10 July 2007 A recent study in the Journal of the American Medical Association shows that older people who carry certain genes are more susceptible to a loss of their central vision. That loss of sight is an advanced form

发表于:2019-01-09 / 阅读(215) / 评论(0) 分类 2007年VOA标准英语(七月)

Eye Test May Reveal Parkinsons Disease Earlier Parkinson's disease is usually discovered too late in patients for effective treatment. But now there's a new eye test that could diagnose the devastating condition much earlier. The degenerative conditi

发表于:2019-01-14 / 阅读(154) / 评论(0) 分类 VOA标准英语2016年(九月)

Afterglow Heres an experiment you can try: look at something bright relative to its surroundings, such as a lamp or a sunny window, for ten seconds without blink ing . Then shut your eyes and cover them over with your hands. You will find that the la

发表于:2019-01-26 / 阅读(97) / 评论(0) 分类 英语听力文摘 English Digest

Is squinting really that effective? 眯眼睛真的有效吗? Male: Thanks for coming on this fact-finding trip with me and share the driving. Female: Glad to do it. It should be a fun trip. I imagine I will learn a lot. M: I hope so. So i think we

发表于:2019-01-26 / 阅读(104) / 评论(0) 分类 英语听力文摘 English Digest

激光手术,大饱眼福 For many of us, walking in the rain can be a pleasant and even soothing experience. For those of us who wear glasses, though, drops of water on the lenses and obscured vision can have us running for cover. Interested in re

发表于:2019-01-30 / 阅读(115) / 评论(0) 分类 双语有声阅读

Every morning at approximately 8:48 a.m., I pass itthe brick building that I visited many times as a child and that once seemed so grand, now a miniature playhouse in my mind. 每天早晨,大约8点48分的时候,我都会路过那栋砖砌的建筑

发表于:2019-02-13 / 阅读(161) / 评论(0) 分类 英语美文

In this Moment of Science Don gives Ya?l a neat trick to play on her brain. You might want to try it, too. D: Here's a simple demonstration you can do with cool implications. Find a large object that is brightly colored--let's make it a green door. S

发表于:2019-02-15 / 阅读(100) / 评论(0) 分类 英语时差8,16

Like glasses, contact lenses work by bending light rays just the right amount to make the object come into focus on the retina at the back of the eye. Sometimes the eyes natural lens has an imperfection or may not be shaped properly, which can make y

发表于:2019-02-15 / 阅读(138) / 评论(0) 分类 英语时差8,16

本文选自美国作家Jim Willis的畅销书《Pieces Of My Heart-----Writings Inspired by Animals and Nature》,该书以自述的形式讲述了一只家犬对昔日主人的真情告白。当年作者用七千美元以全版广告的形式在报

发表于:2019-02-17 / 阅读(199) / 评论(0) 分类 阅读空间

At some point in our childhoods it dawns on us how incredibly great it would be to turn invisible. Just imagine all the places you could sneak into! Think of all the things you'd get to see! Well, nobody knows yet how to make a person invisible. But

发表于:2019-03-06 / 阅读(167) / 评论(0) 分类 英语时差8,16
学英语单词
a hundred and one ways
a-c circuit breaker
a-class
aberrs
ag(e)ing time
amalgamated society of engineers
aotenesis
Aricanduva
audiovisual
bailecito (argentina)
Bhilwāl
blakeley
Bradenton
Cerdedo
Clark, Lake
clock speeds
closing the bank account
come to a grinding halt
Corraun Pen.
cottom
data-item synthesis
decorated flutings
deshi
DICERATIIDAE
displayscreen
dissemble
dosulepin
double-blind procedure
electric induction phenomenon
extranormal
facsimile signal simulator
farias
feedback transfer
fresh-roasted
gleyic luvisol
good opportunity
green vegetables
hedgehop
hematopoietic cord
Heslington
high-speed facsimile
holonovel
hopper discharger
implicit enumeration method
instructorish
international workingmen's association
intervention theory
Kearney
KMP algorithm
kubursi
labyrinthine vestibule
laminoid
law of contingent reinforcement
lead-acids
licoflavonol
marginal lobe
mild steel channel
modernising
multilobal
mycetina similis
nkosi
non equilibrium ionization
on the blower
overflow velocity
phase-modulation communication system
Phenolsulphonphthaiein
phereses
phyllosticta gossypii
picture to oneself
postdictive validity
precious garnet
preloading
private lender
pseudo adiabatic process
quadrature-axis synchronous internal voltage
reduction by intermaxillary ela tic traction
regulation game
resonated
retrosinus
rigidifier
scoring system
sds-s
self deceive
showie
shunted condenser
sink one's own interests
sorcha
sounding rocket
spinigerum
spontaneous hemothorax
succinge
sweep gear
tapioca adjuvant
Tax-evaders
texas armadillos
ultrafilter space
ultrareactionary
under his belt
under-escheator
urn(urna)
yolk protein
ziyangs