时间:2019-01-26 作者:英语课 分类:英语听力文摘 English Digest


英语课

Is squinting 1 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 are getting close to our exit.So I'll keep an eye on it.For there is a sign but I can't quite make it out.


F: Donne, you're squinting to see the sign. Does that really help?


M: It really does. I can read it now when I am squinting.


F: Let's see now.Light enters the eye from many directions. The lens of the eye bends these rays so that they come together at a focal point. When the rays come together at the retina, the image is in focus. If this focal point is in front of the retina, close objects are clear–nearsightedness; if it is behind the retina, distant objects are clear– farsightedness.


M: Right.Now because they are bent 2 more, the rays that pass near the edge of the pupil are blurred 3 more. If you can eliminate these edge rays then you will have less blurring 4.


F: That must be what squinting does.


M: Exactly.Squinting uses the eyelids 5 to block the blurred rays that enter the pupil near its edge. Squinting is not a long-term solution to poor vision, but it sometimes helps in a pinch.


M: Ah,I think we can end this field trip now.I've learned about all I can stand for one day.





男:谢谢你来跟同我一道进行实地考察。


女:很乐意!应该会很有趣的。我觉得我也会学到很多东西。


男:但愿如此!我想我们正在靠近出口了,所以我要集中精力,因为有个地方我总是辨别不出来。


女:多恩,你(眼睛)眯着看东西,真有帮助吗?


男:是的。当我眯着眼睛的时候就可以认出来。


女:让我们现在来看看。光线从四面八方进入到人的眼睛里,眼睛里的晶状体会使这些光线转向,好让它们聚集到同一焦点。当光线聚集到视网膜,清晰的图像就形成了。如果该聚焦点在视网膜前,进出的东西就会很清楚—— 即近视;如果在视网膜后,远处的东西就很清楚—— 即远视。


男:正确!现在由于它们太过倾斜了,经过瞳孔边缘的光线就会被模糊掉。如果你能消除这些边缘的光线,你就会看的清楚些。


女:那就是眯眼睛的效果。


男:完全正确。眯眼睛(的时候),眼皮阻挡了进入瞳孔边缘地区的光线。可这只是在必要时有些帮助,并不是一个解决视力差的方法。


女:阿,我觉得我们现在可以结束这次旅程了。我已经学到了一天能承受的量了。




 



斜视( squint的现在分词 ); 眯着眼睛; 瞟; 从小孔或缝隙里看
  • "More company," he said, squinting in the sun. "那边来人了,"他在阳光中眨巴着眼睛说。
  • Squinting against the morning sun, Faulcon examined the boy carefully. 对着早晨的太阳斜起眼睛,富尔康仔细地打量着那个年轻人。
n.爱好,癖好;adj.弯的;决心的,一心的
  • He was fully bent upon the project.他一心扑在这项计划上。
  • We bent over backward to help them.我们尽了最大努力帮助他们。
v.(使)变模糊( blur的过去式和过去分词 );(使)难以区分;模模糊糊;迷离
  • She suffered from dizziness and blurred vision. 她饱受头晕目眩之苦。
  • Their lazy, blurred voices fell pleasantly on his ears. 他们那种慢吞吞、含糊不清的声音在他听起来却很悦耳。 来自《简明英汉词典》
n.模糊,斑点甚多,(图像的)混乱v.(使)变模糊( blur的现在分词 );(使)难以区分
  • Retinal hemorrhage, and blurring of the optic dise cause visual disturbances. 视网膜出血及神经盘模糊等可导致视力障碍。 来自辞典例句
  • In other ways the Bible limited Puritan writing, blurring and deadening the pages. 另一方面,圣经又限制了清教时期的作品,使它们显得晦涩沉闷。 来自辞典例句
n.眼睑( eyelid的名词复数 );眼睛也不眨一下;不露声色;面不改色
  • She was so tired, her eyelids were beginning to droop. 她太疲倦了,眼睑开始往下垂。
  • Her eyelids drooped as if she were on the verge of sleep. 她眼睑低垂好像快要睡着的样子。 来自《简明英汉词典》
学英语单词
0870
addition subtraction diagram
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antiallergenics
antifoundational
arylalkylamine
bags holed by cargo hooks
ball tipped pipette
be restored to reason
bolshoy tuder
Brandscheid
caniforms
city-bound
clearness of bole
Clisham
close coupled pump
comment text
consanguineously
constitution granted by the sovereign
corrosion kinetics
Corsican mint
crab hand
cryoprotective
detailed process
diffuser head
dispersed
dithane
domical protusion
dynamics of stream
eration
evaporator plant
faanishness
farewellers
flat disk turbine agitator
fritzell
full text database
generation of alternatives
gibt
give it a rest
gluoin
grid course
hemophagocytosis
hiccoughing
high-bulk yarn
hornowls
impinging jet
inclosure(enclosure)
intraepldermic
jebel ali
keymask
lifting method
load supporting device
mark-up calculator
mink frog
N-(2-methylimidazol-1-ethyl)urea
neutral red PS
non-synchronizing
nontolerant
on-site reprocessing
open type transformer
pars infundibularis
peristalsis pump
photoconductive property
physical measurement unit
pickard
porphyran
prestart checklist
put down for
quasi-superordinates
quotation for building a workshop
radical centre
radio colloid
radium dial
raise a price
real-time collaboration
Riverius salt
Saint Clair River
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seiser
separator table
shark ray
shiplap lagging
single-turn coil
special telephone
spiculae
table tennis ball
take the ground
Taussig, Frank William
thrash over old straw
tonkin, gulf of
trenefald
ultrasonic carver
uncensors
under conditions of
undulatory nystagmus
up-leg
Vabrocid
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vectorlyser
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wise porgy
xenon stroboscope