时间:2019-02-16 作者:英语课 分类:英语听力广播—Listening


英语课

 【英文原文】


Have you ever dashed across a parking lot in a sudden rainstorm? You might think that you’ll stay drier by running as fast as you can.but wait!The faster you run, the more drops you’ll run into horizontally, soaking your front.
You want to stay as dry as possible, so what should you do: Walk or run?
A scientist would break this problem into its simplest elements. If there’s no wind, you’ll only get wet from two directions-above as the drops fall on you, and in front as you move into them. The amount of wetness from above is determined 1 by how long you stay in the rain.
If you stay outside twice as long, your head and shoulders will get twice as wet. As far as your top is concerned, the faster you run the better. Running faster means less time spent in the rain.
The water you run into is another story. The faster you go, the more rapidly your front will collide 2 with raindrops, but you’ll also spend less time running through them.
As it turns out, no matter how fast you go, you’ll always hit the same number of drops from the front. If you slow down, you’ll hit them more slowly, but the total amount will be the same at the end of your trip.
Putting the two parts together,top and front,it’s clear that running will indeed keep you drier than walking, but not by very much. It only keeps the top of your head and shoulders drier. Your front will be just as wet whether you sprint 3 or shuffle 4.

adj.坚定的;有决心的
  • I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
  • He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
vi.碰撞,互撞,冲突,抵触
  • The interests of the two countries collide.两国的利益发生冲突。
  • The tides slide on the tidy wide beach and collide each other.海潮在整洁宽阔的海滩上滑行并相互碰撞。
n.短距离赛跑;vi. 奋力而跑,冲刺;vt.全速跑过
  • He put on a sprint to catch the bus.他全速奔跑以赶上公共汽车。
  • The runner seemed to be rallied for a final sprint.这名赛跑者似乎在振作精神作最后的冲刺。
n.拖著脚走,洗纸牌;v.拖曳,慢吞吞地走
  • I wish you'd remember to shuffle before you deal.我希望在你发牌前记得洗牌。
  • Don't shuffle your feet along.别拖着脚步走。
学英语单词
acted-out
Alloa wheeling
ambiens
ampere-wire
associated employers
atheists
bimetry
bleaching of cloth
bogus company
brown thrush
bus-bar chamber
butorphanol
caabas
calamy
canephora
cardinal marks of buoyage system A
Ch'ing
chromosome banding technique
cochon
consolidation
corkscrew arteries
cornetfishes
coureurs de bois
cycle counting method
denuded area
dermatopathy
duplex telegraphy
dysprothrombinemia
egg-masses
eia-485
electroplating
ethavan
executive system routine
fiduciary standard
flux bath dross
gas light
genus Ovis
gil
h1-receptor
hand-held console
Hollerith code
iliac bursae
insinuatingly
intracted
jayawijaya
k.k.k
Kelly L.
key-lime
Kohler
line of equal pressure
linear discrimination classification
lip-strap
long-headedly
lose confidence
make ill blood between persons
mass rapid transit railway
mass stroage dump & verify programme
melampsora laricis hartig
metalumina
microcavitation
midlike
moulded breadth
multi-station system
muscular relaxation
nanoconstricted
no load friction
nonoperate value
notched member
nozzleless solid rocket motor
of-lofte
old codger
one out of two system
orangeless
Ostium trunci pulmonalis
overburden potential
percutaneous cystostomy
pezdek
platedthroughhole
pressure riser
radiolike
rakhmons
Residual Interest
sensor transfer function
single carriageway road
soliton bifurcation diagram
start a hare
Stournaras
supernerds
third position
tin glaze
Toru-Aygyr
tricksters
trochanteral
Tupper Lake
UET
Urolophus
ventral heart
wall-stone
walter de la mares
water immersion test
wristband
wulfgar