阅读短文，根据要求完成下列各题。
CarsareimportantpartoflifeintheUSA．（1）Withoutcarsmostpeoplefeelthattheyarenotrichenough．Andeventhoughapersondoesn'thavemuchmoneyhedoesn'treallyfeelthatwhenhehasacar．
DoyouknowanythingaboutHenryFord?Hefirststartedtomakecarsinlargenumbers．Maybehedidn'tknowhowmuchthecarwasgoingtobetoAmericanculture．（文化）．TheUSAwasmadeacountryonwheels（轮子）bythecar．（3）AndithelpedmaketheUSAwhatitisnow．
（4）车在美国变得相当普及（5）Americansliketomovearoundincars．Withacarpeoplecangotoanyplaceeventhoughtheydon'thavealotofmoney．Ofcourseifyoudon'thaveacaryoucanstillmakeeasytripsbecausethetrafficintheUSAisconvenient（方便）andcomfortable．
1．把句子（1）改成含有if的从句______________．
2．Whofirststartedtomakecarsinlargenumbers?______________．
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______________．