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
acceleration test
acephobia
agig
air space
alloxazin
alpha glucosidase
antenna lobe
antirailroad
Azerraf
barbatinic acid
Baryshnikov
bidding rules
Bisongu, L.
bladerunner
C Language standard
cabinet latch
california-berkeley
carminophil cell
chacarero
chiasma frequency
chinese lesser civet
chory
circuit bridge
clustered aggregate
coila
constraint domain
contextualizations
descant recorder
direct-sum topological space
divellicated
drytte
easy as winking
electromagnetic seed cleaner
engine generators
forge fan
foul fish
generic attribute
geo-stationary orbit
good old dayss
hemp family
hide up
hiller
impactings
Institute of Navigation and Electronic Engineering
interest on current debt
iodine nuclide composition
irritable uterus
Kakindu
kampots
koettite
laminae cribrosa
laying in
leptostracans
lithosis
logical subnet
luragoes
magical realism
Minkowski coordinate system
noil yarn
non-participating
non-segregated
Norepirenamine
norflexes
notching relay
nystafungin
Phacelocarpus
plenicorn
precipitation particle
protopathic sensation
pseudocyclopiid
purple sandpiper
quench tower
Radauti
rate of occurrence of closing without proper command
recalculable
ring sticking test
rudderhole
Rule of Employment of Seamen
salming
saponated cresol
scriabins
self inflation
send date
shoka
short closing
single velocity stage
Strausstown
Streptococcus meningitidis
subvertising
sulphur hexafluoride
tamasi
tantalum sheet
Tensinyl
Terakeka
tetes-de-pont
trcrine
Trimethyl-1-pentene
wave-particle duality
wear mechanism
wet film hanger
write font