短语讲解：

1. This week, learn about a city in the South that helped give the world many kinds of American music.

learn about 获得，学得
例句：You'd learn about the pressure in a plane.
您会学到飞机中的气压。

2. More than one million people live in the Memphis area.

more than 不止
例句：We have more than a car!
我们可不止有辆车！
live in 居住
例句：You live in a really big place!
你住在一个很大的地方!

3. Is there something you’re more interested in than anything else?

interest in 对......的兴趣
例句：You think she had any real interest in you?
你以为她真的对你有兴趣？

4. B.B. King is known for songs like this one, called "Caldonia."    

be known for 因…而众所周知
例句：The truth will not be known for years.
几年中没人会知道真相。