Ireland （爱尔兰） is rich in music.The Irish people love to sing，dance and make music of all kinds.The harp（竖琴） has always been a very important musical instrument in Ireland. During the wars between Ireland and Britain，it was like a national flag for the Irish.In the seventeenth century it became more important than ever before.A very famous harper was O'Carloan.He was born in Westmeath in about 1670.When O'Carloan was about sixteen，he became blind.With the help of a kind，rich lady，he learned to play the harp.He also wrote poems and music for the harp.People have saved a lot of his music and harpers now still play O'Carloan's beautiful music.     When people hear the word "nocturne （夜曲）"，they usually think of Chopin.O'Carloan's nocturne are famous，but the first nocturne came from an Irishman called John Field.He was a pupil of the greatest pianist Clementi in London.We can't hear of him today because there were no records of music in his time.     Ireland also has its great pop and rock musicians.A very successful group is U2.It started in Dublin in 1979.U2 is a group that plays rock music.Its members speak for young Irish people，but they are even popular all over the world.Although Ireland is a country with only five million people，there are many Irish musicians.And a lot of them are world-class.

（1）What kind of musical instrument is important in Ireland？

The harp.

The harp.

（2）When did O'Carloan become blind？

When O'Carloan was about sixteen.

When O'Carloan was about sixteen.

（3）Who wrote the first nocturne？

John Field.

John Field.

（4）Where did the Irish group U2 start？

In Dublin.

In Dublin.

（5）What's the population of Ireland？

Five million people.

Five million people.