时间:2019-01-10 作者:英语课 分类:与美国小学生一起学英文第5册


英语课

   Gas 气体


  There are three different kinds of matter. They are solids, liquids and gases. 物质分三种:固体、液体和气体。
  Gas has no shape, so you can't touch gas. 气体本无形,所以你触摸不到。
  Gas moves very freely 1. 气体能非常自由地运动。
  Gas can change into a solid or a liquid when the temperature gets too low. 当温度变得很低时,气体就能变成固体或液体。
  On the other hand, a solid can change into gas when the temperature gets too high. 反之,当温度变得很高时,固体或液体就能变成气体。
  Is there a good example of these changes? 有没有这些变化的好例子?
  Of course, it is dry ice. 当然有,它就是干冰。

adv.自由地,随便地,无拘无束地
  • She was unable to keep back her tears,and wept freely.她抑制不住泪水,痛痛快快地哭了起来。
  • A liquid flows freely and has no fixed shape.液体能自由流动,无固定形态。
标签: 小学英语
学英语单词
achromatosis
acquisition cession
agate bearing
al-hasan ibn al-haythams
Alpinia densibracteata
amarjits
aptotes
assessment of time preference
attenazio
AURPO
autoinducible enzyme
available space list
aviling
bala
be said to
be sparing of oneself
bipolaron
bird-songs
boiling water
Bouvet Fracture Zone
capping shutter
clearer belt
clunged
commissorial
continuous current rating
coprime
costusroots
Cryptochilum
DDR5
Druzbice
dual dimensioning
earth's polar radius
eke out one's livelihood
El Viso del Alcor
electric press
electrical resistance alloys
enterovaccine
erythrocytic segment
evaporating heating surface
feeldevice
fiato
finder screen
forward welding
g.z
genus Mikania
geologic joint
giant magnetoresistance materials (gmr)
gynostemma pedatum bl.
hematophyte
incasing
Isometrum leucanthum
Johnson counter
jurier
kachin
knife lever
konon
Lambeth walk
Lassar's paste
ligamenta tibiofibulare medium
logwood trees
lower confluent acupoint
marine bottom proton sampler
MCMLXXXIV
medium pacers
medium plate
microprogrammed subroutine
mouthguards
multiplication algebras of matric
Namyu
neuroanatomies
Olives, Mount of
phasic difference
pine-forest
pini-
platypezids
POADS
pollywog
Pont-de-Salars
predictive engineering
retained foreign currency account
screefing
Skoptsi
Smokey-the-Bear
sod formation
south bound node
stable oscillation
stefanovic
symmetrical system
temper current
the big enchilada
theological
thread tree
time series analysis method
totem pole
toxic uveitis
train it
tree cabash
unit labor cost index
uronterin
vehicle fuel saving technique
yearly
yellow-throated martens