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
-trophic
a feast or a famine
a nifty
Abram man
adenosine arabinofuranoside
anchusic acid
arithmetic instruction
atriate
automatic regulation system
B-H loop
banques
barometric tube
before this
brazenry
break sequence
brierberry
burning-drops sign
Callitriche hermaphroditica
celebrity-filled
chemical dehydration
cinchona officinalis hook. f.
co-producers
consol sonne
coverage pattern
data duplication
deacetylation
dendrocola
detection efficiency
detonized
diatomine
dobriansky
Dunois, Jean
electronic cooling
elevator motor
exocranial
fake antiquities
fast-stream
filter from
first mortgages
floating leaf
fog horizon
foreign-registered vessel
from door to door selling
full electronic watch
Heavy Gear
homoeochrome
idiot mittens
impulse-withstand test
indenbaum
indirect indexed mode
information store
inside-the-park homer
isoadrenaline
japilline
joleen
labyrinth type shaft seal
Lawrenciana
legitimate
Lionel Town
lividness
LPEP
macrocyclizations
Mazatecans
mechanic telescopic spreader
member stiffness
monitor TV under water
Moribougou
musicotechnocrat
nowadays
ofuda
overdraft account
Padovana
pawlonia
peptides
Phyllodium longipes
pragmatic technology
pseudo energy gap
reaped
red prairie soil
restraint of liberty
reverse step signal
rhodonites
ring ulcer
SAF
Schutzbund
scommar
sialisterium
standardized regression coefficient
statistical discriminant function
Söllingen
texturing twist
the joke is on someone
Titradose
treatts
truncated tip electrode
ubine
uninteresting
uniroyal
unruly child
xerocopy
yain
yonderly