填空题 The American work force is changing. The most important change is from a 1 economy to a 2 economy. Generally, service jobs are divided into 3 types. One, transportation and 4 companies, like the phone company. Two, 5 companies. Three, 6 companies. Four, finance, 7 and real estate companies. And finally, five, 8 services, such as hotels, car repair, 9 , and medicine. Economists predict that by the year 2000 10 % of the work force will be part of the service economy.
Then what are the causes for such a change? First, American manufacturing industries are not 11 because they are faced with 12 from other parts of the world.
Secondly, because of technological advances, 13 accounting and other business have become important.
Thirdly, more 14 are now having jobs and this has increased the need for 15 and day-care centers. And finally, the number of 16 people has gown, so have 17 services.
But, according to some economists, the service job explosion may create problems. The standard of living might 18 because half of the service jobs pay 19 wages.
The other problem is that some service jobs give a worker very little 20 .