时间:2018-11-27 作者:英语课 分类:背诵为王第二册


英语课

Lesson14 Dolphins

Many people have experienced the joy of standing 1 on a moving ship andwatching a group of dolphins swim alongside. Dolphins are not only playfulanimals but they are also highly intelligent. They are mammals that can befound in most of the world's oceans as well as in fresh water.Dolphins can swim at speeds of up to 56 KPH and they can dive to depths of200 meters and stay underwater for 5-8 minutes without resurfacing for air.They are well-known for the unique clicking sound they use like sonar tolocate food as well as obstacles. Every dolphin has its distinctiveindividual whistling sound used for communication.When dolphins sleep, they sleep in a semi-alert state by resting one sideof their brain at a time. They will help sick or injured dolphins as muchas they can, and they act as a team if there is danger.It is because of these and other human-like qualities that people have aspecial feeling for dolphins.


dolphin ? 海豚

mammal ? 哺乳动物

resurface ? 重新露面

unique ? 独特的

sonar ? 声波定位仪

obstacle ? 障碍物

distinctive 2 ? 与众不同的

whistle ? 吹口哨

semi-alert ? 半警惕的


海豚

许多人一定会有这样开心的经历——站在航行的船上,看着一群海豚从旁边游过。海豚不仅是一种有趣的动物而且极其聪明。海豚是哺乳动物,人们可以在世界上大多数的海洋和淡水中找到它。

海豚的游速可以达到每小时五十六公里,可以潜到两百米深的地方,在水下待五到八分钟而不浮出水面。海豚另一有名的特点是它们可以使用独特的像声波定位器一样的敲击声来确定食物和障碍物的位置。每一头海豚都有自己与众不同的声音,他们靠发出这种声音互相交流。

当海豚睡觉时,它们处于半惊醒状态,每次只休息大脑的一半。它们会尽力帮助生病或受伤的海豚;在遇到危险时,它们会相互协助。

正是因为这些及其他类似于人的特性,人们对海豚有着特殊的感情。



1 standing
n.持续,地位;adj.永久的,不动的,直立的,不流动的
  • After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。
  • They're standing out against any change in the law.他们坚决反对对法律做任何修改。
2 distinctive
adj.特别的,有特色的,与众不同的
  • She has a very distinctive way of walking.她走路的样子与别人很不相同。
  • This bird has several distinctive features.这个鸟具有几种突出的特征。
学英语单词
Abdel
acceleration of ripening
additional advance
anecdotically
antiriot ammunition
apical bud
arecaceaes
augelli
average repair
Bankia spengler
bankruptcy administrator
basic lead sulphate
bilge logs
booster inoculation
bored shitless
boringly
chain and sprocket drive
Chalkedon
checking off symbol
CLMW
course-stability
cross rod
Curley
damper segment
declaratory judgments
deflection calculation
delivered free to destination
dietary-supplement
dress in
dust crops with an insecticide
emince
enterouterine anus
equitangential
faralatrioside
farbs
finely divided scale
folia vermis
heavy work
helius (helius) minusculus
Hose Connectors
hyperhomocysteinemic
intermolecular respiration
lava column
lead number
lends out
lenticel(le)
lywallzyme
macnee
magnitude spectrum
master screw
max sth out
mellower
memory error report analysis
movable appendage
naked-flame mine
nickel-vanadium steel
nominal ocular hazard area
oculometry
one pack
ordinary wheel
organizational climate index
over-grateful
over-indulged
overtowered
pattern representation
phenoxathin
phenylphosphine
pick-up attachment
pilot flame burner
pipeline stopcock
plash
pot-holder
preservative substance
pressure admission chamber
pressure of blast
Prohepes
pseudodiploidy
r.d
ramming up
rankine thermometric scale
riborg
righi-leduc effect
roricon
sclenchyma
self-illuminating sight
selfcontradictory
sniper
sousant
Subhanallah
sukhooei
Swap Curve
tahsildars
thermo anelasticity
three stages fluidized-bed dryer
toner concentration
unkissing
unvote
upright drill
visual agnosia
Wiener schnitzel
with a swing in it
worldless