首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Impact of Urbanization The effects of urbanization: Example: in the U.S. only【L31】________of land built on loss of 【L32】________
Impact of Urbanization The effects of urbanization: Example: in the U.S. only【L31】________of land built on loss of 【L32】________
admin
2022-03-30
85
问题
Impact of Urbanization The effects of urbanization: Example: in the U.S.
only【L31】________of land built on
loss of 【L32】________far larger
could impact on world【L33】________in future
Research methods:
a weather【L34】________ for clouds was used
land use divided into【L35】________.
data used to calculate the【L36】________of all areas
Results:
urban areas often built on the【L37】________
a second study confirmed that prime land is being converted 【L38】________of vegetation is lost per annum
The future:
countries such as【L39】________need to do investigations
stop investing in infrastructure in areas of fertile land
encourage people to move by giving them【L40】________.
【L32】
Hi, good morning everyone. I’m here today to present my findings on the process of urbanization and its impact on the environment. As you know, urbanization involves the movement of people from the countryside to the cities. As this process continues, the cities of the world continue to grow. I will demonstrate how this growth is eating away at the planet’s most fertile land.
My research has focused on two studies that looked at land use in the United States. These have shown that since its independence,
only three per cent of all land in the United States has been built on.
However, the same studies have also shown that the resulting
loss of productive land is comparatively much, much greater.
This isn’t so much of a problem in America as it has a relatively low ratio of people to land. However, most other countries are not so blessed, the impact of which could have dire consequences for the future. The real danger here is if this pattern were to be repeated by developing countries, it could have a major
effect on the world’s food supplies in the next 50 years.
In order to reach this conclusion, several research methods were adopted. A group of scientists in the United States
used a weather satellite
that normally maps moonly cloud cover at night. However, on nights when there were no clouds, they used the satellite to map the generation of heat from city lights. They then took the data and
divided land use into three categories:
urban, semi-urban and non-urban land use. Next, they calculate how active the vegetation is in each region by using different satellites. When they combined this information with previous statistics and weather conditions, they
came up with a number for total productivity for all areas.
So what did the results of this process of land classification show? Well, firstly, they proved that although only a tiny percentage of the land in the United States is urbanized, and 29% of land is used for agricultural purposes,
the land which has been built on actually has the best soils.
These were independently cooperated by a second team of scientists in San Francisco, whose results show that this process is happening even faster in the southeastern corner of the United States. This means that land is extremely productive from an agriculture point of view, is being taken over by lawns, golf courses and a few scattered trees. As a direct result of urbanization, the researchers in San Francisco calculated that every year
1 million tonnes of plants are ’lost’ in the U.S.
So what does this mean for the future? Well, I have come up with some of my own ideas for practical solutions. Countries should calculate whether urbanization is happening on their fertile lands too especially if they have large populations compared to the amount of land available,
1ike India and China,
for example. If it is, then every effort should be made to stop the process from happening This can be done in many ways. One of them is to stop investing in the infrastructure of those areas If people don’t have the facilities they need, they won’t want to live there. But in my opinion, the main solution here is to
offer people financial incentives
to move away from fertile land to areas that are less valuable in agricultural terms.
I hope you’ve enjoyed my presentation this morning. Thanks for your kind attention. I will now take any questions...
选项
答案
productive land
解析
城市化的发展导致的结果是肥沃土壤(productive land)的丧失远远大很多。
转载请注明原文地址:https://kaotiyun.com/show/1v8O777K
本试题收录于:
雅思听力题库雅思(IELTS)分类
0
雅思听力
雅思(IELTS)
相关试题推荐
DothefollowingstatementsagreewiththeinformationgiveninReadingPassage3?Inboxes36-40onyouanswersheetwrite.YE
DothefollowingstatementsagreewiththeinformationinReadingPassage2?Inboxes23-27onyouranswersheetwriteYESif
ChoosethemostsuitableheadingsforparagraphsB-Ffromthelistofheadingsbelow.Writetheappropriatenumbers(/-IX)in
WESTTHAMESCOLLEGEBACKGROUNDINFORMATIONFORCANDIDATESWestThamesCollege(initiallyknownasHounslowBoroughC
YoumustaskyourdoctorbeforetakingBorodinetabletsifyouarealreadybeingtreatedfor…
ReadingPassage3hassevenparagraphsA-G.FromthelistofheadingsbelowchoosethemostsuitableheadingsforparagraphsB
ReadingPassage3haseightparagraphs(A-H).ChoosethemostsuitableheadingsforparagraphsB-Hfromthelistofheadings
ChooseTWOletters,A-E.Writethecorrectletters.WhichTWOstatementsaremadeaboutworkbytheRiverThamesbeforetheeigh
Amina’sprojectisaboutalocal______Informationonhousing______
Inthemiddlepart,Klaraneedstousea______.Theprofessorsuggeststhatheadingsare______.
随机试题
EventhoughhehaslivedinChinaformanyyears,Markstillcannot___________himselftotheChinesecustoms.
A.DNA聚合酶B.核酶C.RNA聚合酶D.限制性内切核酸酶E.DNA连接酶参与DNA转录的酶是
股票的内在价值主要取决于()。
政策性银行与商业银行的最显著不同在于()。
下列行为中()属于套汇。
李白的诗句“山重水尽疑无路,柳暗花明又一村”(《游山西村》)是脍炙人口的千古名句。()
计算机网络的资源共享功能包括:()。
古希腊和古代中国相似的经验知识曾产生了相似的理论洞察力,比如亚里士多德和《墨经》对杠杆原理的认识。但是,古希腊的初始力学理论很快发展成理论知识的综合体,而中国墨家的力学传统在战国之后就中断了。不擅长观察、认识物体运动并形成系统的理论,这是中国古代科学传统中
有关人类的许多问题之一,就是确定人类在自然中的位置。我们人类是从哪里来的?是上帝创造的吗?是自然界为人类而设,还是人仅仅是自然界中的一员?人和猿的差别比白天和黑夜的差别还要大吗?所有这些问题经常出现在人们面前。我们当中的多数人,在寻求这些问题的新答案时遇到
Imaginebeingaskedtospendtwelveorsoyearsofyourlifeinasocietywhichconsistedonlyofmembersofyourownsex.Howw
最新回复
(
0
)