2003年4月自考大学英语(二)试题及答案(4)

2003年4月自考大学英语(二)试题及答案

[A]it's time for lunch

[B]we're hungry

[C]foods smell delicious

[D]our friends are eating

27.From the passage we can infer that the "serving" in the second paragraph most probably means________.

[A]an amount of food

[B]a special service

[C]a meal

[D]some calories

28.According to the author, because of an unhealthy food preference, the increase in rates of being overweight was almost _____________ during the ten years from 198 to 1998.

[A]10 per cent [B]20 per cent

[C]30 per cent [D]40 per cent

29.According to the passage, an obese child is _____________.

[A]less at risk of heart diseases

[B]healthily fat

[C]very hard to get along with

[D]more likely to become an obese adult

30.In order to avoid future increases in rates of overweight and obesity, we need to do

a11 the following EXCEPT _____________.

[A1make an effort to forget our food association

[B]eat less high-fat food

[C]do more exercise to consume excess calories

[D]eat less food

Passage Three

Questions 31 to 35 are based on the following passage．

Labor force is denned as being the total number of people who are available to work and earn income．This definition includes everyone who is employed or seeking paid employment，so it includes employers and the self—employed． Labor is one of the country's resources which can be combined with other resources to produce the goods and services wanted by the community.

Although the size of the workforce depends a great deal on the size of the total population，there are several other influences which a1so affect it．The age distribution of the total population has a very marked effect on the available workforce．if the population has a high proportion of very young people or of those too o1d to work，then the available workforce would be lower than if there were an evenly spread age distribution. If the population naturally grows rapidly,i.e. the number of births greatly exceeds the number of deaths， then as a total population increases the proportion in the workforce declines．

Sometimes a population is described as aging，which means that the birth rate is either falling or growing very slowly, and as people retire from the workforce there are insufficient numbers of young people entering it to replace those who are leaving it．The population is top-heavy(头重脚轻) with older people．So the percentage of the population in the workforce declines when there is