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
above-the-fray
acceptedly
acosmeryx naga naga
aialostenosis
alternative collating sequence
Aridye pigment padding
arrhenic
articulus
at the very least
automatic current stimulator
beam-slab raft foundation
bencini
besee
bogdanovich
boglands
bulk compression
butkevicius
byatts
Cardizem-SR
common application
compensator starter
corrugating medium
creepss
cylindrical hologram
cylindrical-worm
daily settlement price
Dantan
depth of fusion
determination of absorption ratio
discontinuities defect in welds
dissecans pneumonia
draw a crowd
electro optical distance measurement (eodm)
electrocardiocorder
eliminate the negative
eniwanren-ason
extrinsicalness
fully-ionized gas
global coordinate system
gray podzolic (wooded) soil
grouped pass
hardness of x-ray
hoctonspheres
Huanglong Tang
huckaback weave
inevitable accident
ingrain colour
instructionals
items on the agenda
Jack of straw
Kiaman interval
kytlyn
Lady Chatterley
learn sth by heart
light spectrometer
linsays
make arrangements with someone
mards
maryalice
minnion
Moldovanness
multiple stethoscope
multiple-course construction
natural feeding
no reference
nycterimyia kerteszi
one-dimensional defect
parameter error
perambulator
period of apparent manifestation
Petahs
plastic house culture
principle of value
pulse interval modulation
QHDA
quinine valerate
Rachmaninoffian
real-time data server
red and black vertical stripes buoy
repeater optical transit
resolution disk
retrieval of enriched textual abstract (reta)
scamp work and stint material
scritch-scratch
scythopoliss
sensitometry
side show
solid scintillation detector
spot sampling
subroge
threshold kinetic energy
time-to-depth conversion
tubular sprue cutter
Tugarinovia mongolica
unactionable
unheretical
urine pregnancy test
us -ite
Waqr
Yogan, Cerro
ytp
zaharoffs