Ⅰ.阅读理解
A
Although in the 17th century in the United States fine art and folk art had similar qualities，a difference between them began to appear as time went on.In the 18th and 19th centuries artists with ambition studied abroad and came back to paint portraits of upper－class families in American society.The less ambitious or less fortunate artists traveled around their own areas and created pictures of countryside society.Anyway，artists got trained and those simple creations improved a lot.
