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
a child of fortune
adaptive simulated annealing
American persimmon
andr(o)-
antimony flint glass
apuanite
basylous element
batch of products for inspection
beanies
bolometric instrument
branch bounding method
calibration oscillator
chain sequence
Charter Of Liberties
ciego
consuless
coordinate turn
corrugated fasteners
crack angle
crown saws
cruelly
cryoprecipitates
daily allowance
decomposition run
demineralized water circulation pump
desktop virtualization
dss software system
endoincision
epiphytic algae
eristalinus arvorum
european championship
exit price valuation
feather mite
flow spreader
fond regards
frequency response of network
genus Petaurus
glamour photography
granitelle
hair-pulling
high - speed train
high temperature water heating
horemhebs
Hypophysine
injection well pattern
innumerability
kabler
kajillion
lambo lambo
laser chemistry
lethal stand-off distance
Levalloisian
life-way
lifting hook
lysogenies
make a run on the bank
Mari El
matrix rock
mental exercise
miscellaneous components
mixed double bond
mortierella ramanniana
murd
nulliuss
odontogical
one-round
ordinary integral manifold
overextensions
pentabromodiphenyl ether
perfluoroethylene-propylene
perma-fried
plagiarizer
plumby
plunger armature
postitions
ptolemaic dynasties
pudil
putte
quincuncial aestivation
rail-type hot bed
raster nonlinearity
Rawlins
roll breaker
Roscoea sinopurpurea
rummage around
Samcheonpo
secure failure set
Sesuvium portulacastrum
slow-speed direct recording tape recorder
song thrush
stanek
swallow tails
Tainia angustifolia
tearing resistance
tetramerize
tiffauges
Tricho-phyton prupureatum
triparametric
UNCTC
unlimited function
unpiteousness
zyklolat