听力原文：Young males generally use alcohol or drugs for excitement. Or they think it will make them more popular. Young females, however, use cigarettes, drugs or alcohol to feel happier, reduce tension or lose weight.

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It is the (responsible)________of the Human Resources Department to employ new staff members.

&8226;Read the invitation card below.

Mr Wang Changwen

Requests the pleasure of the company of

Mr & Mrs Robert Li

At dinner

At 7:00 p.m. on Friday, 31 st December

At the Guest House, the Friendship Hotel

R.S.V.P Telephone: 2558330

&8226;Write a letter to Mr Wang:

&8226;apologizing

&8226;explaining that you will go to a pop music concert with LiMing

&8226;expressing your thanks for the invitation.

&8226;Write 60-80 words on your Answer Sheet.

&8226;Do not include any postal addresses.

Demography is the statistical study of human population

It can be a-general science that can be applied to any kind

of dynamic population, that is, one that changed over 【M1】__

the time or space. It encompasses the study of the size, 【M2】__

structure and distribution of populations, and spatial or

temporal changes in them in response to birth, death,

migration and aging.

Human demography is the most well known discipline

of demography, and typically what people refer when 【M3】__

using the term demography. Demographic analysis

can be applied to whole societies or to groups defined by

criterion such as education, nationality, religion and ethnicity. 【M4】__

In academia, demography is often regarded as a branch

of either economy or sociology. Formal demography 【M5】__

limits its object of study to the measurement of populations

processes, when the more broad field of social demography 【M6】__

studies also analyze the relationships between

economic, social, cultural and biological processes influencing on 【M7】__

a population.

Ibn Khaldun (1332-1406) is regarded as the "father of demography"

for his economic analysis of social organization which

produced the first scientific and theoretical work on

population, development, and group dynamics. At the end of the

18th century, Thomas Malthus concluded that, if unchecked,

populations would be subject to exponential growth. He feared

that population growth would intend to outstrip growth in food 【M8】__

production, leading to ever increased famine and poverty; he 【M9】__

is seen as the intellectual father of ideas of overpopulation and

the limits for growth. Later more sophisticated and realistic 【M10】__

models were presented by Benjamin Gompertz and Verhulst.

【M1】

How does the speaker spend his holiday in winter？

He usually takes one week to______.

听力原文： Naturally, a large number of senior citizens in America are looking forward to enjoying their retirement, but the recent trend in retirement has made it harder and harder. Some people have to delay their retirement by a few years and keep working to earn extra income, and those who have already quit their job have a very tough time finding another one. According to the nation's largest credit-counseling agency, the baby boomer generation is the first generation that is going into retirement carrying substantial credit-card debt. The average credit-card balance among Americans over the age of 65 climbed 149 percent between 1989 and 2001. Those between the ages of 55 and 64 carried a similar amount of debt.

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