阅读短文，根据要求完成下列各题。

Cars are important part of life in the USA．（1）Without cars most people feel that they are not rich enough． And even though a person doesn't have much money, he doesn't really feel that when he has a car．

Do you know anything about Henry Ford? He first started to make cars in large numbers．Maybe he didn't know how much the car was going to be to American culture．（文化）．The USA was made a country on wheels（轮子）by the car．（3）And it helped make the USA what it is now．

（4）车在美国变得相当普及 （5）Americans like to move around in cars． With a car people can go to any place even though they don't have a lot of money． Of course, if you don't have a car, you can still make easy trips because the traffic in the USA is convenient（方便）and comfortable．

1．把句子（1）改成含有if的从句______________．

2．Who first started to make cars in large numbers? ______________．

3．把第（3）句翻译成汉语。______________

4．将第（4）句翻译成英语______________．

5．就画线部分提问______________．