商务英语综合教程上册课件第二版房玉靖 ISBN9787566303288 PPTUnit 3.ppt

Related Technical Terms 3. consumer price 消费价格 Consumer price index (CPI) measures changes in the price level of consumer goods and services purchased by households. The CPI in the United States is defined by the Bureau of Labor Statistics as a measure of the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services. The CPI is a statistical estimate constructed using the prices of a sample of representative items whose prices are collected periodically. Sub-indexes and sub-sub-indexes are computed for different categories and sub-categories of goods and services, being combined to produce the overall index with weights reflecting their shares in the total of the consumer expenditures covered by the index. It is one of several price indices calculated by most national statistical agencies. Related Technical Terms The annual percentage change in a CPI is used as a measure of inflation. A CPI can be used to index (i.e., adjust for the effect of inflation) the real value of wages, salaries, pensions, for regulating prices and for deflating monetary magnitudes to show changes in real values. In most countries, the CPI is, along with the population census and the USA National Income and Product Accounts, one of the most closely watched national economic statistics. Key to the Exercises Back II. 1. reliable rely changeable change comfortable comfort specific specify fantastic fantasy Horrific horrify understandable understand movable move Noun adjective noun adjective Key to the Exercises 2. 1. in the wake of 2. discriminatory 3. forum 4. extension 5. consistently 6. round 7 abide by 8. implemented 9. . delegation 10. sustainable 3. 1. b 2. a 3. c 4. a 5. a 6. c 7. d 8. c 9. a 10. d Back Key to the Exercises III. 1. 1. must talk to them 2. I had to take a taxi 3. can be there on time　　　 4. could be dangerous; might give you 5. ought to clean the classroom 6. ne