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
actual availability
Adenauer, Konrad
alberonis
all-purpose instrument
ancillary revenue
Argonne three-roll tube reducer
atmospheric physics
battle of Philippi
bendabilities
block operator
blood (colored) agate
bolt out of the house
cam nose
canalis carpalis
car type mould conveyor
casein paint
cheerfully
chloroacetic acid
chronopotentiography
circularly polarized wave
cold shots
coupling hole
Coxeter diagram
cup cheese
curvilinear generatrix
custom autofilter
cylinder mean pressure
Days Creek
deficit country
dialectologist
direct pressure
disiloxanoxy
drum film dryer
dual temperature exchange process
dusky perch
electricizing
encephalitis siderans
export cargo
fluctuating electric field
forecasting station
four-wire circuits
fuchss
gear-tooth forming
geometrical property
glycosurias
Grancey-le-Château
Havering
heatseeking
Hibernia Reef
holding altitude
infecting
inference of string grammar
instruction to tenderer
intestinal parasitic disease
keyboard function key
kirbyville
leucemia
matrix of quadratic form
metamonad
metapopulation
method of absorption measurement
microscopy
mygalomorphs
nail-plat
Namboothiri
netmaking
Noxiptylin
Nymphalinae
octagonal ingot
off-set facility
ophiolater
palanque
Panabo
Papaver pavoninum
perioral cyanosis
perisporia
phenanthrenequinones
pictorial test of intelligence
PLC (programmable logic controller)
plumodenticulate
pretophaceous
rear axle bumper
relational data language
reserve-grade
Rogagua, L.
scale slovent
sekizawa
soil-borne plant pathogen
sound filmstrip
splayed arch
stolarski
tentative calculation
testlying
timcodar
turbine constant
United Nations Peacekeeping Forces
untelegenic
uterus tumors
Uvalde County
watershoots
way to fly
zakanitch