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
ambiaxius franklinae
andrews cotton
Anemoi
audivsurgery
awakens
banding pattern
blackfeller
block schematic diagram
bottom porthole
buckling allowable
bug bounty program
burnout altitude
burst slug
butyl propionate
carbarsone poisoning
Cehu Silvaniei
civilly
component efficiency
Copland, Aaron
cornford
crib dam
critical crack opening displacement
current intensity
Cyclopteropsis
Dendrocalamus semiscandens
dial peer hunting
double-skin pontoon hatchcover
drastic classicism
dysstatic
econophysics
eight-year
electrocladding refractory metal
Eleutherococcus gracilistylus
EmEditor
encrypted message
entelodont
excizes
fayences
ferences
ferro-molybdenun
fire in the liver
font metric
forlis
full order observer
gas distribution system capacity
genetic gain
hamocura
haulage tariff
heroesses
in a position to
information retrieval display
infragraph
internal design review
irregular skein
Isokyrö
jum'ah
kiecolt
kingliker
Kobresia deasyi
lithified
litterfalls
localizer (loc)
moments of distribution
moorishes
moribund condition
moss fibers
multiway search tree
Māmūri
noneconometric simulation model
not with a bang but a whimper
organ forming substance
peroneal tubercles
photosensitive speed
prematonin
priority one plus one indication
program for international student assessment (pisa)
progressive failure
pushes around
put money on
quantity distributed
radius end mill
sanguineous cataract
scorings
sealed envelope
share operatior system
singlet state
slow burning fuse
soluble eosin
stative verb
steam-jet cooling system
step (-wise) change in power
stepped coil
Talquezal
thermally massive structure
trace debug
transgressive cycle
turse
ventral veno-lymphatic sinus
violette de Parme
wing.membrane
WIPI
witherine (witherite)