时间:2019-01-07 作者:英语课 分类:万花筒2011年


英语课

 October 31st 2011, that's the date the U.N. says the 7 billionth person will be born on Earth,7 billion.That's a crowded planet 1, says Dr. Jeffrey Sachs, the director of the Earth Institute at Columbia University and author of the Price of Civilization. 


 
It took only 12 years to go from 6 billion to 7 billion and it's expected to take maybe another 14 years to go to 8 billion. So the trajectory 2 is still rising quickly. 
 
Sachs says all those people mean more demands for food, more stresses on the land, and more loss of water, but that's not the biggest problem. 
 
The big problem is that in the poorest countries, families are still having six,seven,or eight children, that what's putting this tremendous 3 growth of population continuing because in the high-income countries, fertility 4 rates have come down to two children on average or even less.
 
This map shows you birth rates across the world. Multiple 5 births above five are centered in Africa.Most lower birth rates are in developed countries. Dr. Sachs says rapid population growth in poor countries often creates conflict, and political stress at borders. 
 
And on top of that, cultural values and available health care in developing countries creates a barrier to proper birth control. Dr. Sachs also wrote an in-depth article on the 7 billion mark, and what it could mean for the planet itself. You can find it at cnn.com/opinion.
 
Jim Clancy,CNN Atlanta.

n.行星
  • Neptune is the furthest planet from the sun. 海王星是离太阳最远的行星。
  • Rubbish, however, is only part of the problem of polluting our planet. 然而, 垃圾只是我们这个星球的污染问题的一个方面。
n.弹道,轨道
  • It is not difficult to sketch the subsequent trajectory.很容易描绘出它们最终的轨迹。
  • The path followed by a projectile is called its trajectory.抛物体所循的路径称为它的轨道。
adj.巨大的,极大的;很好的,非常好的
  • This book was the outcome of a tremendous amount of scientific work.这本书是大量科学研究工作的成果。
  • There is a tremendous difference between them.他们之间有着极大的差别。
n.肥沃;繁殖力
  • A green manure is a crop grown mainly to improve soil fertility.种植绿肥作物主要是为使土壤更加肥沃。
  • She is taking drugs to increase her fertility.她为了增强她的生殖能力而在服药。
adj.多个(或多项、多种)的;n.(数)倍数
  • The number 8 is a multiple of 4.八是四的倍数。
  • The most common multiple births are twins,two babies born at the same time.最常见的多胎是双胞胎,两个婴儿同时出生。
学英语单词
all-out effort
ammonia cooler
ampa
appointed member
Arouet
aseptic myocarditis of newborn
assquake
atomweight
bacchanalias
Ban Hai
be roses all the way
Beaujeu
blessed with
Buronzo
canalis carpalis
capsule assembly
Carex wawuensis
cigar-shaped
ciliopagurus strigatus
classification of waste
closing to meeting maneuver
court of common pleas
crossey
crowd-control
cuttlebones
cystosarcoma
degenerative myopia
diatectite
Diebougou
drum magnetic separator
duplex output
eliminate unemployment
empiric(al)
epilating forceps
fermiophobic
fine struction
flash one's eyes at
formate butyl
French Standard
game fishes
genus cairinas
geological structure
HDMI CEC
hearth plate
honours degree
idiolysin
idiopathic detrusor dyssynergia
imperia
inkfish
insatisfactorily
jus pascendi
keyword item
laser printers
man-machine interaction equipment
maximum bit rate
mistion
more replenishing soil moisture reserve
motion planning
motion-pictures
Nal detector
Nervus medianus
non-exclusion
non-linear molecule
nonulcerated
nyy
okwui
open end V-belt
passets
Phichit, Changwat
pick up and delivery service
pinch-faced
polygonometric network
prima donnas
quality bonus
radiation gasdynamics
reexhumation
replacement length
rubber paint
sadhanas
scissor-tailed
seen eye to eye
signal bridge
single-state recycle
slotted screen
snowmobiles
spam act
Spittal of Glenshee
spring of cylinder lubricator plunger
strip-searches
sudden cough
sufflations
supersonic particle sizer
surface of constant pressure
talipes calcaneus
termination and suspersion of contract
theory mapping
unsanctimonious
urnsful
user program status display
webtalk
wtb
xenotime