在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，词首字母已。

     Cars are an i    1     part of life in the United States. Most of people feel that they are poor w    2    

cars. A   3     he is poor, he doesn't feel really poor when he has a car.

     Henry Ford was the man who first b    4     making cars. Maybe, he didn't know how much the car

was going to affect (影响) the United States. That made the USA a country on w__5    . And they have

helped to make the United States rich and modern.

     The car has been popular in the USA. The country is a large one. Americans like to m    6     around

in it. It is easier and cheaper to travel by car. With a car; people can go to any place without spending

too much money.