时间:2018-12-03 作者:英语课 分类:标准美语发音的13个秘诀 CD4


英语课

[00:03.27]Part 1 American Mosaic 1

[00:08.20]Text 1 Leap Year

[00:29.78]February has an extra day this year because the year 2,000 is a "leap year".

[00:36.57]That means that one day is added to the calendar.

[00:40.86]That day is February twenty-ninth, also known as "Leap Day".

[00:47.44]Leap days were added to some years to make the calendar year

[00:52.43]nearly the same as the time it takes the Earth to travel around the sun.

[00:57.99]That is exactly 365 days, 5 hours, 48 minutes and a little over 45 seconds.

[01:08.88]So our calendar year is either 365 days in non-leap years or 366 days in leap years.

[01:08.94]The leap year was first used in the Julian Calendar 2,046 years ago.

[01:16.64]It was developed by the Roman Emperor Julius Caesar.

[01:21.16]In the Julian calendar, each year contained twelve months

[01:26.28]and had an average of 365 and one-fourth days in a year.

[01:33.07]This was done by having three years of 365 days and one year of 366 days: a leap day every four years.

[01:47.13]However, after Julius Caesar died,

[01:50.63]it was discovered that the priests 2 who wrote the yearly 3 calendars had been adding leap days every three years instead of every four.

[02:00.71]As a result, no more leap days were added for many years.

[02:06.54]By 1582, Pope 4 Gregory the Thirteenth recognized that the calendar had too many leap days.

[02:16.10]If this continued, the seasons would start on different days each year.

[02:22.71]Over time,for example, this would cause the holiday of Easter to move closer and closer to Christmas.

[02:32.16]So Pope Gregory changed the calendar.

[02:35.69]It became known as the Gregorian Calendar. It is the one that is used most today.

[02:43.60]Pope Gregory's calendar continued to have leap days every four years, with an exception 5.

[02:51.21]Years ending in zerozero were leap years only if they could be divided by 400.

[02:59.83]So this year is a leap year, but 1900 was not.

[03:05.76]February 29, 2000 will be the first leap day in a century year since the year 1600.



1 mosaic
n./adj.镶嵌细工的,镶嵌工艺品的,嵌花式的
  • The sky this morning is a mosaic of blue and white.今天早上的天空是幅蓝白相间的画面。
  • The image mosaic is a troublesome work.图象镶嵌是个麻烦的工作。
2 priests
n.(基督教和罗马天主教的)神父( priest的名词复数 );牧师;(非基督教会的)教士;祭司
  • the ordination of women priests 女司祭的授职礼
  • The clergy remain divided on the issue of women priests. 在女性教士的问题上,牧师们意见不一。 来自《简明英汉词典》
3 yearly
adj.每年的,一年一度的;adv.一年一次地
  • The flower show is a yearly event in our town.我们镇上的花展一年举行一次。
  • The yearly rental of her house is 2400 yuan.她这房子年租金是2400元。
4 pope
n.(罗马天主教的)教皇
  • The Pope is the spiritual leader of many Christians.教皇是众多基督徒的宗教领袖。
  • The Pope is the supreme leader of the Roman Catholic Church.教皇是罗马天主教的最高领袖。
5 exception
n.例外,除外
  • Everyone should keep discipline and you are no exception. 每个人都应该遵守纪律,你也毫无例外。
  • There's an exception to every rule. 每项规则均有例外。
标签: 美国英语听力
学英语单词
a conspiracy of silence
adduction of thumb
agricultural technical cooperation
air-spaced paper insulation
an intake of breath
andromodov
annya
antijamming unit
armblasters
Arnold sterilizer
ascendancy
automatic rerun allowed
ball transfer table
Bessieres
brachynsis
brake performance
Cassia pumila
chylopleura
collapsed balloon spinning
compendance
congenital alternate nail dystrophy
constant ignition
crimes without victims
Crossandra
Dabhol
damp-proofings
darker shade
deformed bar reinforcement
deoxyribonucleoside diphosphate
dhaal
discumbered
electric polarity
emulsify
exwives
eyres courts
family worker
fiction theory
first order dependence
fixed-knife planer
flaggable
flight progress board
fluxoid quantum
frequency meter
G clef
Geochang-gun
Gomphostemma pseudocrinitum
grand manan island
heliconia
high pressure gas dynamic laser
high-pressure tesr
hot-air curing
idiomatization
in-steam measurement
interpassive
intrapsychical
investigation on audience
kennett
Kubla Khan
l'eglise
labyrinthine tests
Leifsons flagella staining
Meerfeld
mesosystems
Morton, Levi Parsons
multi-layers
net amortization charge
new shekel
on-site guidance
one-nationism
one-stop shopping concept
paigc
paint somone in someone's proper colours
palaeomobility
paraffin copper wire
parietal(parietal bone)
partographs
photoelectric amplifier
present gum in gasoline
propellant fill-drain lines
prostatic enucleator
ramus dorsalis (a. collateralis radialis)
residual mismatch
reverse avalanche energy
scanty crop
screwing lift mixer settler
sideband suppressed carrier
spinal plate
substantia nigras
tall tales
tanystome
technical fault
the last straw!
theory of possibility
THTH
tropical forest soil
underbiting
unsaturatedness
villagery
warren gamaliel hardings
wild card
Wilkinson's Ointment