时间:2018-12-27 作者:英语课 分类:一起听英语


【一起听英语】人口大爆炸 - 英语课
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  1. 1 【一起听英语】人口大爆炸 英语课
英语课

 人口数量增长速度过快。给我们的生存环境带来哪些影响?


Alice: Hello, I'm Alice…


Finn: And I'm Finn.…


Alice: And this is 6 Minute English! This week we’re talking about population


growth and the effects it might have on the world. At the moment it’s


estimated that there are about 7 billion people on the planet.


Finn: It’s estimated – experts make an educated guess at the number of people based


on research.


Alice: If projections 1 are correct experts think there could be 9.5 billion people by the


year 2075.


Finn: Projections – the estimated number of people calculated by looking at


population changes over time.


Alice: Experts say there will be a population explosion.


Finn: That means a dramatic and very fast increase.


Alice: So before we find out more – I have a question for you Finn. How many zeros


are there after the 1 in a billion?


a) 12 b) 9 c) 6


Finn: Let’s guess. A thousand million. A million is 6 zeros so a thousand – 9, 9 zeros.


Alice: As usual, I won’t tell you the answer now - but we’ll find out at the end of the


programme. So let’s see how population growth is going to change the way 


6 Minute English © bbclearningenglish.com 2011


Page 2 of 5


our planet works. The Institute of Mechanical Engineers recently published a


report about how technology could help us manage larger populations. They


say it’s the defining challenge of the century.


Finn: That’s the most important issue in the next 90 years.


Alice: Here’s the BBC’s environment analyst 2 Roger Harrabin:


Insert 2: Roger Harrabin


One author of today’s report described population growth as the defining challenge of


the century - bigger even than climate change. The report says work needs to start now


on technological 3 solutions for a world of nine and a half billion people. Many of the


practical ideas in the report have been welcomed by development groups.


Alice: Roger Harrabin says that population growth is even more important than


climate change. The report says that engineers need to start work now to find


technological solutions to provide enough food, water, energy and homes for


nine and a half billion people.


Finn: Technological solutions – that’s the use of technology to invent or improve


something.


Alice: One of the authors of the report is Tim Fox, Head of Energy, Environment and


Climate Change at the Institute of Mechanical Engineers. He says that


engineers have already created technologies which can deal with the challenge


of providing food, water, energy and homes for everyone in the world in 2075.


But one area he says we can try and improve on is wasting less food:


Insert 2: Dr Tim Fox


6 Minute English © bbclearningenglish.com 2011


Page 3 of 5


The challenge of providing food, water, energy and homes internationally can be met


through existing technologies that are available today. So something like 50% of food is


wasted in newly developing countries between the field and the market place – now here


in the highly industrialised countries we’ve solved that problem sustainably through the


use of refrigeration and transportation mechanisms 4 that are highly optimised and we


waste all our food between the supermarket and our consumption.


Alice: What did Dr Tim Fox of the Institute of Mechanical Engineers say were the


two technological improvements we could make to stop wasting so much food?


Finn: He said we could improve refrigeration and transportation


Alice: Dr Tim Fox said that something like 50% of food is wasted in newly developed


countries between the field and the market place. This could be improved by


having better refrigeration and transportation from the farm to markets and


shops. What did he say about developed countries?


Finn: In developed countries the system of refrigeration and transportation has been


optimised.


Alice: optimised – that means it has been developed so that it is extremely efficient


and can’t be improved upon. But he says that in highly industrialised countries


– countries that are very developed economically – food is wasted between the


supermarket and people’s consumption.


Finn: That means that people might buy a lot of food at the supermarket but end up


throwing it away – they don’t consume it. Now, before we go let’s find out the


answer to the question I asked you at the beginning of the programme. How


many zeros come after the 1 in a billion? a. 12, b.9, c.6


Finn: I guessed b. 9


Alice: You’re right. And your prize, Finn, is to read out some of the words and


phrases we’ve heard in today’s programme. 


6 Minute English © bbclearningenglish.com 2011


Page 4 of 5


Finn: What could be better? Here we go:


population


 billion


 it’s estimated


 projection


 explosion


 defining challenge


 technological solutions


 refrigeration


 transportation


optimised


 consumption


Alice: Thanks so much for that Finn. We hope you’ve had fun with us today on "6


Minute English" - and that you’ll join us again next time.


Both: Bye. 



1 projections
预测( projection的名词复数 ); 投影; 投掷; 突起物
  • Their sales projections are a total thumbsuck. 他们的销售量预测纯属估计。
  • The council has revised its projections of funding requirements upwards. 地方议会调高了对资金需求的预测。
2 analyst
n.分析家,化验员;心理分析学家
  • What can you contribute to the position of a market analyst?你有什么技能可有助于市场分析员的职务?
  • The analyst is required to interpolate values between standards.分析人员需要在这些标准中插入一些值。
3 technological
adj.技术的;工艺的
  • A successful company must keep up with the pace of technological change.一家成功的公司必须得跟上技术变革的步伐。
  • Today,the pace of life is increasing with technological advancements.当今, 随着科技进步,生活节奏不断增快。
4 mechanisms
n.机械( mechanism的名词复数 );机械装置;[生物学] 机制;机械作用
  • The research will provide direct insight into molecular mechanisms. 这项研究将使人能够直接地了解分子的机理。 来自《简明英汉词典》
  • He explained how the two mechanisms worked. 他解释这两台机械装置是如何工作的。 来自《简明英汉词典》
学英语单词
0838
allaires
amino acid dating
amount of shares
Arapoti
archaebacterium
articulated trailer
Bamicetin
biocides
brick-lined shaft
Canarreos, Arch.de los
candied fruits
carry collar
cdss
chemodectoma
class oppression
clodhopping
construction home base
cotto
cucurbita pepo l. var .ovifera alef yellow flowered gouards
cycle rate
Dawes
deletion operator
diabolonian
dilophosaurus
double -headed rail
ecoforestry
electroplated decoration
eulachan
ferroelectronic
five-day
fornix vagin?
fort george g. meades
forthbear
Francisco I.Madero
generalized relative aperture
glacier breeze
glassy carbon electrode
go for a swim
Great Rift Valley
heartlines
Hewson
hose packing
idiopathic purpura
in circulation
induction effect
inter-fertility
joints pastern
Keep your pant on.
knocking-over bar
leader of chain
lemon tincture
leonines
Livernon
luo
make progress in
maritme radio navigation mobile station
matterless
Mbest
menotactic
mesogluteal
message numbering generator
metalcutting
multisync
new laddishness
nonwealthy
organic-reaction mechanism
panspermatist
peen
power house along river bank
practico
promorphological
protective breaker
protopanoxadiol
raceme-cyme
reappearest
reedville
restricted passing sight distance
rifampicin
RU-38486
saudi arabian monetary units
schwamkrug
sclerotize
Seami
seminiform
semiskilled
shanghaier
steam union gasket
stern wheeler
Strix occidentalis
sub-alpine
super-tough steel
technical specialist
test-tube holder
THRIDIDAE
Trioleate
undeterminately
upper flammable limit
variable-length command
volcani
w hernia
Wiesmoor