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
access domain
acrobatically
agani
alloea ampla
alpe-adria
amount returned
anadem
ancient mud flow
arachnoidea encephali
basic formula
black humorist
black mould of rice
Buteo lineatus
Caballonema
caniapiscau (kaniapiskau)
central karoo
Chalonnes
Childe Harold's Pilgrimage
chronological species
circumference pelvic
cock blocka
company property
compare file
complement of two's
concentric float
cooling water regulator
copremier
corporatisations
counterbraces
cyberthug
cylinder relief valve
de-stabilizing
document ordering system
dolaconine
eimeria tenella
enemy-like
erany
estuary regulation
european conference on object-oriented programming
experimental pit
extremozyme
facetted boulder
fan-shaped delta
fastbreaks
flame out
fractionation precipitation
frame ball
frontiers of space
goniophotometer
groceraunt
hoopstick orifice
in fiscal matters
Isola del Liri
jackonet
kaempfer
knees-ups
kv-a-h meter
lolling
make a landing
Marie Jeanne
marine service motor
mehrjui
mung bean improvement
Naraini
narcotic poison
neptuniums
newly-rich
nonindigenous
nuisant
OCR
oner
organization socialization
oxygen lance cutting
perimorphous
pigroot
planetary evolution
quaternary gain amplifier
random choice method
rescue agreement
resistance to disease
rosulate phyllotaxy
ruby-eyed dilution
rupestriss
sash brush
sationary periodically
second category axis
Smith curve
sonderweg
spheric balance spring
statistical relationships among variables
steatodism
sunpcs
took leave
transitive algebra
transonic compression
trecetilide
tree mallow
Triphoridae
upsa-tree
whinberries
whole small intestine transplantation
worthless check