[光] 光锥

00:00.00]Unit 4 My Community [00:06.08]1.Look.Listen.Say. [00:19.51]Hippity hop to the videno shop,I want to rent a movie. [00:25.16]Hippity hop to the video shop,A movie just for me. [00:30.42]2.Read and say. [00:41.98]1.The movie theater is next to

发表于:2018-12-13 / 阅读(138) / 评论(0) 分类 新派英语第二册

The Christmas Fairy 圣诞仙子 It was the day before Christmas. 那是圣诞节的前一天。 Two poor little children were out in the woods. 两个贫穷的小孩正在外面的森林里。 They wanted to find a Christmas tree. 他们想找一棵圣

发表于:2018-12-13 / 阅读(97) / 评论(0) 分类 美国小学英语教材1

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(116) / 评论(0) 分类 VOA标准英语2012年(二月)

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(114) / 评论(0) 分类 Scientific American(二)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(107) / 评论(0) 分类 美国英语听力80篇

Here is a summary of the news. Shots are fired in a south London street by escaping bank robbers. Four rock fans die in a stampede at a concert Chicago. And how an Air France Concorde was involved in

发表于:2018-12-26 / 阅读(163) / 评论(0) 分类 中级英语听力

Here is a summary of the news. Shots are fired in a south London street by escaping bank robbers. Four rock fans die in a stampede at a concert Chicago. And how an Air France Concorde was involved in the closest recorded miss in aviation history? Sho

发表于:2018-12-27 / 阅读(170) / 评论(0) 分类 北外英语中级听力

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(130) / 评论(0) 分类 英语听力文摘 English Digest

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(139) / 评论(0) 分类 60秒科学

My friend Gayle has been living with cancer for four years and it is proGREssively getting worse. During a conversation with another friend, Gayle expressed that one of her childhood wishes was to have a red Radio Flyer wagon. As a child she never re

发表于:2019-01-03 / 阅读(154) / 评论(0) 分类 趣味英语

While you may be condemning the laws of your country, have a look at some of the most weird, craziest and wackiest laws that lawmakers around the world seem to have made when not in their senses. 1. Chewing gums are banned in Singapore in order to ma

发表于:2019-01-06 / 阅读(138) / 评论(0) 分类 英语小短文

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(142) / 评论(0) 分类 英语时差8,16

It was the last day of the summer day camp. It was hot, almost 100 degrees. The counselors needed a way to cool off the kids. After talking, the counselors decided to give out snow cones. The snow cones would be made out of ice and syrup. There were

发表于:2019-01-24 / 阅读(198) / 评论(0) 分类 英语第5级听力-English Level 5

Beginners. In our area, some birds will stay for the Winter. They make their nests cozy , fluff up their feathers, and search for food every day. But, they have a problem. Because everything is covered with snow, it is hard to find food. It is too co

发表于:2019-01-28 / 阅读(137) / 评论(0) 分类 英语博客 A cup of English

Tree climbing: Part 1 NB: This is not an accurate word-for-word transcript Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today Im joined by Kate. Now in todays programme and in next weeks programme were talking about

发表于:2019-02-05 / 阅读(197) / 评论(0) 分类 六分钟英语

My friend Gayle has been living with cancer for four years and it is proGREssively getting worse. During a conversation with another friend, Gayle expressed that one of her childhood wishes was to have a red Radio Flyer wagon. As a child she never re

发表于:2019-02-12 / 阅读(127) / 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(97) / 评论(0) 分类 英语时差8,16

That's because you've never been to one, remarked the old sheep. 那是因为你从来没有去过,老羊说, A fair is a rat's paradise. 集市是老鼠的乐园。 Everybody spills food at a fair. 集市里人人扔食物。 A rat can creep out

发表于:2019-02-17 / 阅读(135) / 评论(0) 分类 夏洛的网

NOEL KING, HOST: Today is the winter solstice. It's the shortest day of the year, and this is also a time of year when a lot of people feel down or depressed. Now scientists think they have new information on why short days lead to such dark moods. N

发表于:2019-02-21 / 阅读(140) / 评论(0) 分类 2018年NPR美国国家公共电台12月

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(114) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
adjustable marker
aerial balance
aliphatic epoxy resin
analog pulse frequency modulation (pfm)
appraisal of quality
artabotrinine
Atresy
bdo
biological synthesis
Bolaman
bourette
BQM-34
breathes out
bully for you!
cathode layer arc technique
chain-type horizontal stripper
Chinese customary mortgage
chromaticity coordinate
complete pattern
computation program
concourss
console printer/keyboard adapter
content delivery
corduliid
critical micelle concentration(CMC)
curve profile
DAML
deficient
desolvation
diagramless
dialkyl arsine sulfide
distributive function
dummy reactor
edge diffraction
endectocide
equivoke
evolvents
evolves
Fincastle
fitchy
fixed manufacturing overhead standard
fuel damper
have art or part in
hepar (liver)
HPMA
hyaline connective tissue
incrament
Kastrioti
Kerry Hd.
labor-capital
leather bucket
letter gs
lowheartedness
lump-sum basis
Lygodieae
made her exit
mesiogingival
municipal council
naravelia zeylanica (l.) dc.
needle land
New Orient Express
nonchemicals
normal lock
ordinal-level
overflow blowdown
ovum(pl. ova)
paste for gingival massage
pays the bills
phase locking circuit
Planting-season
polystenohaline
portifino
potential crop
primary stress-bearing area
primemanifold
psidium guajavas
quebrachine
radiation biochemistry
realized genetic correlation
restricted breathing enclosure
Saint Agnes's Eve
scrubbed out
sharp-shinned hawk
silvertungsten
sowsing
sparest
strap-shapeds
stronger
sturne
subject to correction
three-particle interaction
touristed
traveller number
triceps muscle
trichyte (trichite)
tripleable functor
trotti
two-year
unaccused
vandyke paper
variable-intensity log
zamindars