[外语类试卷]国家公共英语三级（工作与职业）练习试卷4及答案与解析.doc

1、国家公共英语三级（工作与职业）练习试卷 4及答案与解析 Part B 1 Below is a graph which gives us information about changes in prices, the supply and the demand of TV sets. Look at the graph and write an essay entitled Changes in Prices about 120 words. 国家公共英语三级（工作与职业）练习试卷 4答案与解析 Part B 1 【正确答案】 Changes in Prices In business, t

2、he supply and the demand of goods of the same kind are influenced by the change of the prices. As the graph shows, both the supply and the demand of TV sets are affected by the TV sets prices. When the price of TV sets increases, more TV sets tend to be supplied because more profit will be gained. H

3、owever, as the price goes up, the demand for TV sets will fall down, for consumers will be more reluctant to buy them. Hence, an increase in the price of the goods usually causes a decrease in the demand and an increase in the supply. When supply exceeds demand, businessmen can lower the price to increase the demand. The contrary, they Can raise the price to decrease the demand. But a stable price must be achieved to keep the market healthy. The point where the lines of supply and demand intersect is the most reasonable price to choose which will make the TV set market flourish. 【知识模块】 工作与职业