还有“自在，安然自得，得心应手”的意思，如：He is quite at home with the computer now.
2.Regardless of why it spreads：不管它(美国通俗文化)传播的原因是什么
3.No longer so: those bright colors，checkered jackets and trousers，hats and socks which were
once made fun of in cartoons are back again in Paris as the latest fashion.：情况不再如此，一度在卡通片里作为笑料的艳丽颜色、格子面料的上衣和裤子、帽子和袜子，作为最新的时尚重返巴黎。
4.Rock‘n’ roll and all its variations，county ＆ western music:摇滚乐及其变体，乡村音乐和西部音乐
练习：
A As a result，its American origins and roots are often quickly forgotten.
B But this theory fails to explain why American films，music，and television programs are so popular in themselves.
C American in origin，informal clothing has become the world’s first truly universal style.
D The BBC,for example，banned rock and roll until 1962.
E American food has become popular around the world too.
F This spirit is variously described as being young and free，optimistic and confident，informal and disrespectful.
答案：1.B 2.F 3.A 4.C 5.D
