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单选题公共英语三级

2009-08-06

America succeeded in shaping world events over the past 40 years probably because of

A．its ability to compete in the world markets

B．its ability to take advantage of the capabilities of its people

C．its ability to adapt technology

D．both A and B

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参考答案

D

答案解析

细节题。从第二段第二句话看出A和B涉及的两个因素都起了作用。故D正确。

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1 The purpose of writing this article is

A．to draw the readers' attention to a new standard for measuring power

B．to demonstrate America political influence in the world

C．to emphasize that effort must be made to strengthen the declining industrial base

D．to show American industrial prowess

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2 根据下列文章,请回答题。Text 3
Increasingly, over the past ten years, peopleespecially young people--have become aware of the need to change their eating habit,because much of the food they eat,particularly processed foods, is not good for health. Consequently, there has been a growing interest in natural foods: foods which do not contain chemical additives and which have not been affected by chemical fertilizers, widely used in farming today.
Natural foods,for example,are vegetable,fruit and grain which have been grown in soil and are rich in organic matter. In simple terms, this means that the soil has been nourished by unused vegetable matter,which provides it with essential vitamins and minerals. This in itself is a natural process compared with the use of chemicals and fertilizers, the main purpose of which is to increase the a- mount--but not the quality of foods grown in commercial farming areas.
Natural foods also include animals which have been allowed to feed and move freely in healthy pastures. Compare this with what happens in the mass production of poultry:there are battery farm, for example, where thousands of chickens live crowded together in one building and are fed on food which is little better than rubbish. Chickens kept in this way are not only tasteless as food;they also produce eggs which lack important vitamins.
There are other aspects of healthy eating which are now receiving increasing attention from experts on diet. Take for example,the question of sugar, This is actually a nonessential food! Although a natural alternative,such as honey ,can be treed to sweeten food if it is .necessary, we can in fact do without it. It is not that sugar is harmful in itself. But it does seem to be addictive:the quantity we use has grown steadily over the last two-ce000nturies and in Britain today each person consumes an average of 200 pounds a year! Yet all it does is to provide us with energy in the form of calories. There areno vitamins in it no minerals,and no fibre.
It is significant that nowadays fibre is considered to be an important part of a healthy diet. In white bread, for example, the fibre has been removed. But it is present in unrefined flour and of course in vegetables. It is interesting to note that in countries where the national diet contains large quantifies of unrefined flour and vegetables, certain diseases are comparatively rare. Hence the emphasis is placed on the eating of whole meal bread and more vegetables by modem experts in" healthy eating".This passage is mainly concerned with

A．people' s growing interest in natural foods

B．natural food and healthy diet

C．the importance of fibre in foods

D．harmful effects of sugar

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3 The passage tells us that

A．sugar is bad for the health

B．the use of sugar is habit forming

C．people need sugar to give them energy

D．sugar provides us with nothing useful

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