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
abrasion marks
after the fashion of
agent procedure
alpha anomalous scattering
anterior scrotal nerve
anti-ballooning ring
antimicrowave
art editor
Ban Kam
banded-iron formation
Barros, L.dos
blunt shape
booster seven pipe connector working ladder
bothynogria calcarata
bottom echo
capital of Tennessee
caprel
cell nest
Champsecret
conc.
contemporary bourgeoisie economics
control data assembly program
copper plate
cultural access group
damn all
deboosting
disome
ditheists
dynamometer-car
embolomycotic
equality strength
equipment system
errevous
faxagent
flacourtia indicas
flight-path recorder
fundamental forces
game playing
gaseous metal
Giluwe, Mt.
gps countermeasures
Heisenberg model
Himalayan shrew
hohs
Hunghae
hydrangea rosthornii diels
impounding of property seized
interruption queue
jbail
laminate ply
lateral cavity
lnu
Mamey, I.
mammoths
measuring interface unit
Microsoft Agent
midmounted
mineral products sampling
night-owl
nourishing stomach
nubilus
ON.
osteofibrosis deformans juvenilis
pandysautonomia
paper holder
parkless
parlez vous
pavlidis
pigfaces
Piggate
Polygonum griffithii
popskull
powerquest
practical storage life
procases
public interests
punkey
reobjectify
reverse osmosis permeator unit
rubber bearing pad
sample area
samurai bond
sandpapering machine
scheid
scroll discharge centrifuge
search test
semidetached
shellac calculus
sink lake
source code virus
stability of steady state
star-makers
sternsman
Stra.
suranal
symmetric resonator
tailless whip scorpion
three ratio gear
transmitting current response
uniform probate code
wagu
zymolysis