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
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air inlet valve lever
ammonia absorption machine
auto-circuit breaker
auto-suggestion
Bacillus aquatilis
balanced type floating dock
beautifications
Bezaha
Bonassola
bradybolism
branding mark
c-grades
campaign hats
cation bed demineralizer
cell-mediated hypersensitivity
cepharanthine
Chemosympathectomy
chidrens
chivenors
chronic alcoholic
clock-house
continuous reinforced concrete pavement
Cotagaita
crown tile
cubbins
dam type lip ladle
digital integrating circuit
dozenths
dust-free workshop
dynamic action between wheel and rail
earlier on
electromagnetic compatibility and interference
enterwrought
excessive cultivation
facelessly
felidu atoll
fine droplet
fine fraction
fluke worm
focm
forward roll
free verses
fruit juice filter
gas-liquid system
georgias
hiker
ilexpubesceus
inhalable
initial rubber
IS (information separator)
JPT
KC2H3O2
kerosene heaters
Kneeton
Kutenholz
leadless piezoelectric ceramics
lock-rotor frequency
machined
mazursky
modified staircase wave
mopsical
my humble abode
nesh
Odontaspididae
Park equation
procedure error
pumpable
purple velvet plant
quick-response transducer
reheader
resistance strain gauges
restraints on financial budgets
rhopalosiphonius deutzifoliae
right of independence and self-determination
satellite connection
satellite operating lifetime
season of emergence
send ... on
sensitometer
severe gale
severe looks
sexagesimal measure of angle
shag someone
shell-toe
Shirouma-dake
skin-divings
Slide Mountain
sludge digestion compartment
snakelet
socioreligious
text-editing system
thermal randomness
thumb switch
travelling canvas apron
trial volunteer
Trichism
ultra-high-power
ultrasecure laboratory
unexaggerable
washing tray
zatz