The United Nations is warning that the world is not prepared to deal with the fast growth of cities. The World Economic and Social Survey 2013 calls for new ways to meet the needs of city populations. More than 6.5 billion people are expected to be living in cities by 2050.
Most new city dwellers will be in developing countries. The United Nations says the effect on limited resources in many countries will be huge. The World Economic and Social Survey points to the increasing demand for energy, water, sanitation, public services, education and health care.
The world population is expected to rise to more than nine billion by 2050, two-thirds of all people are expected to live in cities. The United Nations says about 80 percent of this growing urban population will be found in Africa and Asia.
The report says sustainable development of urban areas requires coordination and investments to deal with important issues, these include land-use, food security, job creation and transportation.
Willem Van Der Geest is with the United Nations Department of Economic and Social Affairs, he says cities need to work closely with rural communities, so that food supplies can be secured, and the environment can be protected.
"We need enough integration(整合，融合) with cities... An integration between the rural and urban economies is absolutely vital for issues of nutrition, food security, and environmental sustainability."
The report says development in a sustainable（可持续发展）way is important to end poverty. The report also examines the problem of food insecurity, which affects hundreds of millions of people around the world. One in eight people still severely lack nutrition.
UN officials say some things are clear. The Assistant Secretary-General for Economic Development, Shamshad Akhtar, says world food production will have to increase by 70%, that increase will be needed to feed the additional 2.3 billion people expected on the planet by the middle of the century. She says an important part of meeting that need is to waste less food. "There has to be efforts to reduce food wastage. ."
Food and nutrition security are core elements of the sustainable development agenda.
The survey includes the following statements except that ______.

A．varieties of demands are hard to meet because of the increasing population in Africa and Asia.

B．one way to put an end to poverty is to be able to develop for a long time.

C．transportation is an important issue to deal with when it comes to sustainable development of urban areas.

D．hundreds of millions of people around the world are affected by the problem of food insecurity.

From the passage we can infer that ______.

A．cities grow so fast that the world can’t find out new ways to deal with the growing population.

B．the growing city dwellers who mainly come from the developing countries greatly challenge limited resources in the world.

C．sustainable development of urban areas requires coordination and investments to deal with important issues

D．food wastage is an effective way to feed the additional 2.3 biilion people by the middle of the century.

What is the best titile of the passage?

A．The World Economic and Social Survey 2013.

B．City Population Will Increase to 9 Billion.

C．Cities Need to Cooperate with Rural Areas.

D．The World Is Not Prepared to Deal with the Fast Growth of Cities.

The passage is chosen from ______.

A．a textbook

B．a travel guide

C．a novel

D．a newspaper

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