表面驻波

P: This is terrific. I can't believe we are in Hawaii, Yang Chen! Y: I can't believe it, either. 我们是不是要在沙滩上晒太阳? Patrick, did you bring your bikini? P: Yang Chen., could you be serious for just one moment? Y: OK. P: I'm going

发表于:2018-11-30 / 阅读(175) / 评论(0) 分类 体育美语

Windows Vex Bats' Echolocating Abilities 干扰蝙蝠回声定位的烦人窗 Just as humans understand the shape of our surroundings by how light reflects off objects, bats use reflections of sounds they produce insteadwhats called echolocation. But

发表于:2018-12-02 / 阅读(131) / 评论(0) 分类 2017年Scientific American(九)月

The Moon 月球 We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation

发表于:2018-12-05 / 阅读(140) / 评论(0) 分类 有声英文阅读

The Moon We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation shows that the moon is not standing till. Its distance fr

发表于:2018-12-07 / 阅读(93) / 评论(0) 分类 双语有声阅读

(NASA Administrator Dan) Golden accepts that the search for life on Mars is not over.

发表于:2018-12-07 / 阅读(113) / 评论(0) 分类 寻访外星人

Jack plunched down into thesea, the water was freezing cold, hepumped back up to the surface, choaking and coughing, the lifevest kept Jack closed, but the waves kept hammering at him. Help! Jack shouted. Thought to the twenty foot tiger shark, andmy

发表于:2018-12-10 / 阅读(137) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

How Far Away Is The Horizon? 地平线有多远? Heres a neat question you may have never thought to ask. How far away is the horizon? 你可能从未思考过这个简单的问题,地平线有多远? Flat Earth 地球是平的 Think about it.

发表于:2018-12-28 / 阅读(91) / 评论(0) 分类 初学者听力文摘精选

今天我们要学的词是heat wave。 Heat wave, 热浪,高温天气。 A heat wave is sweeping the Northeastern region of the United States, 美国东北部地区普遍出现高温天气。 The heat wave could be a record-breaker, 这次高温天气

发表于:2019-01-07 / 阅读(161) / 评论(0) 分类 英语每日一词

Joel: So, Mitchell, I only surfed for about a year and I never got very good at it. I wonder if you could explain how a beginner goes about learning how to surf. Mitchell: Well, that's a tough question because I was surfing ever since I was small so

发表于:2019-01-08 / 阅读(100) / 评论(0) 分类 原版英语对话1000个

Spirit Getting Ready to Roam the Red Planet David McAlary The U.S. robot rover Spirit is finally standing up on Mars and nearly ready to drive off the lander onto the red planet's surface. Surface exp

发表于:2019-01-09 / 阅读(167) / 评论(0) 分类 VOA2004(上)--各类新闻

MICHEL MARTIN, HOST: Let's talk midterm elections now. The enthusiasm of Democrats is a major force shaping this year's crop of candidates. Among the results of a newly energized Democratic Party, far more women are running and expected to run in thi

发表于:2019-01-16 / 阅读(184) / 评论(0) 分类 2018年NPR美国国家公共电台3月

And then there's a guy standing next to her, with, like, an espresso cup, and he's like... 然后她旁边站着一个男人,拿着 一个咖啡杯,他就这样... And it says, What brings you today? 然后照片还写着,哪阵风把你吹来了

发表于:2019-01-18 / 阅读(127) / 评论(0) 分类 TED演讲商业篇

A Smooth Wake 平静的尾流 (A smooth wake on today's moments of science) Female: Donne and I are on a fantacy cruise . The sun has set and were standing on the rear deck. Look at the reflection of the moon. Male: You might expect a ship's wake

发表于:2019-01-26 / 阅读(85) / 评论(0) 分类 英语听力文摘 English Digest

And thats the first time; it was return black-and-white panoramas of the Venus surface. These images were extremely important, because it was the first time, we ,human beings had a chance to see with our naked eyes completely different other world. W

发表于:2019-02-05 / 阅读(110) / 评论(0) 分类 自然百科2012年

Just as humans understand the shape of oursurroundings by how light reflects off objects, batsuse reflections of sounds they produce insteadwhat's called echolocation. But despite theirexcellent sensing abilities, one type of obstaclevexes the animal

发表于:2019-02-14 / 阅读(114) / 评论(0) 分类 2018年科学美国人1月

Those waves hitting the sand actually begin far out at sea. And it doesnt take much to get them going. A little wind will do the trick. First the wind blows over the surface of the water, generating the little ripples you can see just by blowing acro

发表于:2019-02-23 / 阅读(110) / 评论(0) 分类 英语时差8,16

On our last program, we learned how water bugs manage to stand on the surface of a pond: The pads of their feet resist contact with the water just like wax paper does. This allows the bug to rest on the thin film of surface tension that naturally cov

发表于:2019-02-23 / 阅读(118) / 评论(0) 分类 英语时差8,16

Its summertime, and youre on vacation. You sit beside a quiet pond, fishing, trying to relax, trying to think about nothing at all. You watch the leaves stirring, the water rippling in the sunshine, and the water bugs standing on the surface of the w

发表于:2019-02-23 / 阅读(140) / 评论(0) 分类 英语时差8,16

By bending arms and legs or angling her bodypresenting more or less surface area to the groundshe can change her rate of fall, slowing or speeding up her terminal velocity around ten or twenty miles per hour. To fall as fast as two hundred miles per

发表于:2019-03-06 / 阅读(142) / 评论(0) 分类 英语时差8,16

Next time youre sitting in the tub, try the following experiment. Stand up quickly, being careful not to fall over. The water will slosh over to fill in the place where your body was, and then slosh back in the other direction, and so on. You have cr

发表于:2019-03-06 / 阅读(173) / 评论(0) 分类 英语时差8,16
学英语单词
ad-placement
allylglucosinolates
alpha stage products
alternative standard system
antenna waveguide switch
Arcus pubicus
arterio-venography
attirements
Aňo Nuevo, Point
binary form
Bloomer, Amelia Jenks
bloopers
CAOHC
catcher groove
chordlike
chorism
complementary filter
cory-
cotwins
counter ga(u)ge
cupellation process
darayne
DNOD
Dunseith
dyadic system
elastic scatter
electric discharge
falling film
fore-room
geddie
george enescus
halperns
hargrow
hdf
Herglotz
high pressure device
hoisting-speed
in the adjacent apartment
interperitoneally
King's Guide
L/C
law of unequal slope
letter-bomb
liability of infants for torts
light storage device
Lope de Vaga
Lubbeek
Marxian
misappropriating
mobile communications service
mollient
morbilliform eruption
mystico-
n-tuple
nega
no charge machine-fault time
Nobb
non-adjustable articulator
nuxes
Obecalps
par(a)esthesia
paraffin crude oil
Pay after tax
PER (program event record)
peyssonnelia caulifera
piezosensor
polyrhachis pyrgops
precinct committeemen
prime focus
propane steam cracking
psychorubin
rear-drives
reparametrisations
Rhododendron nuttallii
runcom
scape-goats
sealery seal fishery
secondary dump
self-interested
shaft enclosing tube
sick quarters
silicon bulk micromachining
space acceleration
spring mix
starter breakdown voltage
static atom
statistic interpretation
stubble bottom
sulfasaidine
susps-s
sync fail
tinospra sagittata(oliv.)ganep.
top of shoulder
tremolabile
trivirostra edgari
vacuum leak rate
variant angina
voussoir brick
Wickham's striae
yucca glaucas
zhenan
zooster