阅读理解。

     请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。注意：每空1

个单词。

     The farm economy of the United States has changed a lot in the last seventy years. In the 1930s,

twenty-five percent of the nation's population lived on farms. Today less than one percent of Americans do.

     Farm incomes have changed over the years too. For example, in 1933, people living and working on

farms had much less money to spend than other Americans. At that time, farm families had about one-third

the income of non-farmers after all necessary expenses had been paid. By the late 1970s, however, that

difference had almost disappeared. In 2004,farmers had their best year ever. The average farm family earned

about eighty-one thousand dollars. That is more than the average American family, which earned about sixty

thousand dollars.

     The Department of Labor measures the pay of industrial workers differently. It measures the average

hourly and weekly pay for industrial workers. This is because factory workers are generally paid by the hour

unlike farmers who earn income from their farm businesses. Generally, the average hourly pay for all industrial

workers is about sixteen dollars. And the average weekly pay, about five hundred fifty dollars. Industrial and

other services employ about eighty-six percent of the labor force.