1.文章标题分析：Happy Birthday to You
借助文章开头的语句进一步了解文章主题：
The main problem in discussing American popular culture is also one of its main characteristics： it(指代American popular culture) won’t stay American.
推测该文章可能涉及到美国文化。
2.备选项分析：
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.
3.直接解题：
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.
One theory is that it has been “advertised” and marketed through American films， popular music， and more recently， television. ________1____ They are， after all， in competition with those produced by other countries.
1. B. 分析：空格后出现线索词They，空格前句中出现“One theory is that.。”，对比被选项发现B中提到了“this theory(这条理论)”，而且如果B是答案，B有复数词American films， music， television programs与后句中的They呼应。而且“美国电影，音乐，电视节目在和其他国家的同类产品竞争”的含义很通顺，因此判断B是答案。
线索：核心词语的重复构成前后句语意的承接来
A. As a result， its American origins and roots are often quickly forgotten.
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.
Another theory， probably a more common one， is that American popular culture is internationally associated with something called “the spirit of America.” ____2____