光敏层;感光层

CHAPTER ONE [00:44.25]READING [00:45.74]Page 2 and 3 [00:48.43]THE YOUNG GREEN CONSUMER GUIDE [00:51.51]Review by Tony Ma [00:54.62]This book says that our world is in danger [00:59.32]It is vital that we do something to save the earth [01:04.21]Firs

发表于:2018-12-01 / 阅读(515) / 评论(0) 分类 上海牛津初中英语九年级

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2018-12-04 / 阅读(182) / 评论(0) 分类 听一分钟英文-O

Gene Therapy Halts Vision Loss in Dogs Researchers have stopped vision decline in dogs with an inherited disease that causes blindness. The gene therapy technique they used may someday stop vision loss in humans. Retinitis pigmentosa (RP) is an eye d

发表于:2018-12-16 / 阅读(132) / 评论(0) 分类 VOA标准英语2012年(二月)

Bringing up a sensitive topic Can I talk to you for a minute? Can I ask you something? Do you mind if I ask you something? I need to talk to you for a minute. I have to tell you something. There's something I need to tell you. There's something I thi

发表于:2018-12-17 / 阅读(177) / 评论(0) 分类 跟我学英语入门篇

Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of

发表于:2018-12-24 / 阅读(140) / 评论(0) 分类 2015年Scientific American(一)月

[00:06.37]Some people cannot see all colors correctly. [00:10.92]They cannot see all the colors in a rainbow or a sunset. [00:16.40]They cannot tell if the meat they are cooking is done or if a fruit is ready to be eaten. [00:23.61]Poor color sight a

发表于:2018-12-26 / 阅读(125) / 评论(0) 分类 美国英语听力80篇

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(223) / 评论(0) 分类 英语课程学习计划和讲义

Night Vision And Humans: Why Cant We See Color? When we are in a fairly dark room, or outside at night away from lights, we can still see, but we cant see the colors of things very well. Why is that? There are two kinds of light-sensitive organs loca

发表于:2018-12-31 / 阅读(147) / 评论(0) 分类 英语听力文摘 English Digest

Sunscreened Plants 遮光植物 A NASA researcher is finding that alfalfa plants grow more poorly when exposed to UVB -- ultraviolet B radiation from the sun. Learn more about sunscreened plants -- today on Earth and Sky. JB: This is Earth and Sky. Eart

发表于:2019-01-02 / 阅读(229) / 评论(0) 分类 (科普英语)Earth and Sky

Smaller Fingers Mean More Sensitive Fingertips A study in the Journal of Neuroscience finds that people with smaller fingers have more sensitive fingertips, probably due to a higher concentration of touch receptors in a given area. Cynthia Graber rep

发表于:2019-01-02 / 阅读(174) / 评论(0) 分类 60秒科学

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-11 / 阅读(175) / 评论(0) 分类 英语杂谈

今天我们要学的词是sensitive。 Sensitive, 是敏感的意思。A sensitive topic, 就是敏感的话题。 Employment experts warn job seekers not to give out sensitive personal information when applying for positions online, 就业问题专家

发表于:2019-01-20 / 阅读(102) / 评论(0) 分类 英语单词荟萃

By Paul Sisco Washington 16 April 2008 A congressional subcommittee recently heard testimony that sensitive aircraft technology and a vast array of stolen military gear is for sale on eBAY, Craigslist and other Internet sites. A Government Accountabi

发表于:2019-01-20 / 阅读(176) / 评论(0) 分类 VOA常速英语2008年(四月)

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2019-01-21 / 阅读(176) / 评论(0) 分类 纯正英语一分钟

Because from trillions of miles away, these small planets get lost in the blinding glare of their stars brightness. The sad truth of the matter is that earth-like planets are near cosmic specks of dust. And therefore detecting them is really quite ha

发表于:2019-01-22 / 阅读(127) / 评论(0) 分类 自然百科2010年

Cats And Colors You can look at that quilt your cat is curled up on and see a patchwork of greens, blues, and yellows. Your cat, however, cannot see color variation in the quilt. And here is why. Both humans and cats depend on the back layer of the e

发表于:2019-01-22 / 阅读(159) / 评论(0) 分类 英语时差8,16

今天我们要学的词是sensitive。 Sensitive, 是敏感的意思。A sensitive topic, 就是敏感的话题。 Employment experts warn job seekers not to give out sensitive personal information when applying for positions online, 就业问题专家

发表于:2019-01-25 / 阅读(135) / 评论(0) 分类 英语每日一词

Lesson 332 He's sensitive. 1.He's sensitive.他很敏感。 2.Don't be so sensitive.别那么爱过敏嘛。 3.You're too sensitive.你太敏感了。 4.It's sensitive question.这是个敏感的问题。 5.The instrument is sensitive.这仪器很灵敏

发表于:2019-02-12 / 阅读(179) / 评论(0) 分类 辛沛沛NO-BOOK 辛沛沛傻瓜机口语极短句

1. Calm down. 冷静一点. 2. Don't get so excited about it. 别因为这事儿太激动。 3. Don't go into hysterics. 不要歇斯底里的。 4. Don't lose sleep over it. 别因为这事儿睡不着觉。 5. Don't let it get to you. 别让他影响

发表于:2019-02-19 / 阅读(127) / 评论(0) 分类 英语口语

Cats And Colors 人类能够很容易的分辨出不同的颜色。那么猫呢?虽然猫的视力很好,即使在非常昏暗的光线条件下也能看见,但它对于如何分辨不同的颜色似乎并不擅长。 Cats and Colors on this mo

发表于:2019-02-24 / 阅读(137) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
alcoholic liver disease
Alcoletge
all-pass structure
alternate track table
alumina-silica firebrick
alveolocondylar
analysis of fire
antistreptococcus sera
Beta vulgaris L. var. lutea DC.
biomineralized
Cahora Bassa, Lago de
camper
capsicidin
cephalaspidas
chumships
compensation light intensity
critical working set
cryptographic service provider
cyano radicals
deal cost
dipenyl hydroxy arsine
effecto
electric luminous radiator
enterokinin
false form
fhash alloy
float chamber cap
foramen ethmoidal
french cuisine
full tonnage
genus chondruss
gouta
grip ordinary
guide cylinder
hand synchronizer
heidenreich
hippeutis umblicalis
hubbob
hundere courts
intrinsic reaction coordinate
Jungbunzlau
keyboard lockout
knife stroke
Krieng
kryptons
ladymantle
Lambangan
large ring
limit science and technology
linear polarized
lndex Medicus
Lolwane
love-acts
machined bolt
megaevents
mine warfare group
Mineralnye Vody
mobile anticyclone
Napier 2, John
needle-couching
nigatsu-do
occupational licensing
off-on wave generator
on the one hand but on the other hand
ossicular
oxygenize(d) air
periodicity modulus
Persicaria nepalensis
pertybush
phyllite slate
plenties
program-controlled interrupt
pyloric diverticula (or pyloric coeca)
Reconstructionist Judaism
reichenberger
revelational
rosecrance
rotation browsing
s.a.es
seamers
serac
servomultiplier
shelter-seeking behavio(u)r
signed with
sillier
single-roll caster
some-how
spludge
standard charter party form
strelitzia families
strongylium lishanum
table for range
tactical weapons system
tandem plowing
Tomori, Tk.
Tra Tan
tropicalises
tureen
uncut
Wernau
wood-house
yggdrasil