时间:2018-11-30 作者:英语课 分类:英语专业四级听写


英语课
Passage 20
Waves
How does light get from the sun to the earth? How does music get from the stage to the audience? They move the same way — in waves!
Light and sound are forms of energy. All waves carry energy, but they may carry it differently. Light and sound travel through different kinds of matter. For example, light waves cannot move through walls, but sound waves can. That is why you can hear people talking in another room even though you cannot see them. The energy of some waves is destructive. An earthquake produces seismic 1 waves.
Catch a wave. Ask a friend to stand a few feet away from you. Stretch a spring between you. Shake the spring to transfer energy to it. What happens? The spring bounces up and down in waves. When the waves reach your friend, they bounce back to you!
Light waves travel 300,000 kilometers (186,000 miles) per second! They can also travel through a vacuum. That is why light from the sun and distant stars can travel through space to the earth.(175 words)


1 seismic
a.地震的,地震强度的
  • Earthquakes produce two types of seismic waves.地震产生两种地震波。
  • The latest seismic activity was also felt in northern Kenya.肯尼亚北部也感觉到了最近的地震活动。
学英语单词
acquisition of foreign currencies
agitated compartmented extractor
alloyed iron
allyl plastic
arbitrary quantity
auto-zero cloth raising machine
automatic stereotype activation
auxiliary kiln drive
be girlie
Benzoquin
birdoswald
bulk mixing
Burmannia wallichii
CA15-3
calcification of medial accessory ligament
cameron hills
car body load
centralized bridge control
centre angle
chloration
civil enterprise
clasico
clobetasol propionate unguent
compiler base
connected vessels
converter bridge
crystalline rennin
dermal capillaries
emst
Fieldsian
fired tea
gas-liquid equilibrium process
general subgrade
genus Oxylebius
get one's eye in
go for naught
hakels
halftone picture
hatch casing
have a bad spill
hematomyelitis
heteroid
immunogenicity
in the bed
initial sack
intramolecular condensation
isabelles
karmis
kellar
keto-urine
livestock-equipment
longleaf pine
lynch-moussas
Madrigalejo
Mahiyangana
man chowdas
Metalling Clause
mini discs
moistify
morning-only
motion-resistance force
needle-handle shaking
neon filledtube
nisba
nonassignable
oceanwise
oculi
OTH-B radar
padillas
paralebeda plagifera
parallel economy
pear sauce
pericombobulations
phillipps
phoney-baloney
plinky-plonky
pneumatic needle scaler
Poa tolmatchewii
schussers
scrap baling presses
shale flowage
shoeboxlike
sighting colors
small business information
social cause
sower apple
sportingly
stochastic 0L system
storage expenses
sulfuryl fluorochloride
supernaturalnesses
sylring
tabling
tekkamaki
unasserved
unavenged
union scale
universal equivalent
vapourific
vision switcher
wall-attachment amplifer
weighting percentage