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

   Fossil 化石


  Fossils are the ramains of animals or plants. 化石是动物或植物的遗骸。
  They are usually inside of rocks. 它们通常在岩体内。
  They are typically more than ten thousand years old. 它们通常有一万多年的历史。
  Fossils are made by sudden changes on the Earth, like volcanoes and tsunamis 1. 化石由发生在地球上的突变形成的,比如火山和海啸。
  Animals and plants are buried in soil by the sudden changes. 动物和植物因这样的突变而被埋在了土壤中。
  Then, they become rocks. 然后,它们就变成了岩石。
  The oldest fossil is about 4 billion years old. 最古老的化石约有40亿年的历史。

n.海啸( tsunami的名词复数 )
  • Our oceans are alive with earthquakes, volcanoes, and more recently, tsunamis. 海中充满着地震、火山,包括最近发生的海啸。 来自常春藤生活英语杂志-2006年2月号
  • Please tell me something more about tsunamis! 请您给我讲讲海啸吧! 来自辞典例句
标签: 小学英语
学英语单词
anapaestic
arsenikstein (arsenopyrite)
Ascriptin
astro tracker
astroimaging
atroviride
beach replenishment
blocking device
buy a white horse
catalogue raisonne
catalyst bulk density
common myrrh
communications device
competition design
CPPC
cross connector
cwas
defect classification model
deutzia parviflora bge.
diazo photographic material
dictenophiuras
durham pt.
E-neighborhood
earlid
education condition
emergency medical system
enyne
eprouvettes
family potamogetonaceaes
federo-
foot fungus
for what it is
free-swimmer
Gauss principle of least constraint
general piping flow sheet
gestation interval
go on doing something
green potato
gyr
heat exchanger cooling waste
holscher
hostile act
hydrocole animal
indirect differentiation
inland radiotelegram
international film festival
IOCU
Julpo
kerbau
kovacs
lift weights
lobe
look at that
Lychnis dioica
martensitic phase transformation
monotonic order
mony
moteliers
mustacheless
necromancer
negative match
neurofibrilar
noseyed
oxychloro-
paleodatum
peak absorbance
Petite Kabylie
phanom
pimperistic
pleat hold after washing
protogenous
release limiting valve
rod holder
romanticistic
rumdumb
ruthenium(i) bromide
scs control code
send flying
settling of supports
shares out
single module
small-ion combination
solvent extraction ( desalting ) process
stilleite
stitchworts
telegnomy
test requirement specification
theory of approximation
thinking model
to one's cost
trade-off-decision
transmission code violation
unmanaged flexibility
venae cutaneae
veto a bill
voltmeter switch
water sealed tank
water-resisting property
wayfaring tree
worn down
worthley
zweibrcken