Sydney is a young city. Its history goes back just over 200 years. But inAustralia, it is the oldest city. It is also the country’s largest city. Sydney is the capital of New South Wales and the most populous(人口稠密的) city of Australia.

　　The climate(气候) of Sydney is very good. It’s not too cold during the winter and not too hot during the summer. The sky is blue，the air is fresh(清新的), birds sing in the garden. People who live inSydneyseem to have an easy life style. They will tell you, “Don’t worry. ”

　　Many people think thatSydneyis one of the most attractive cities in the world. It has many tall and modern buildings. Among them,CentrepointToweris the tallest. Standing on the 305--metre(80 storeys) tower, you will have a great view(视野) of the city.

　　Sydney is famous for its deep harbor(港口) .The harbor has many bays(湾) and beautiful surf beaches. Among them, Bondi beach is the most popular.SydneyHarboris not only beautiful, it also serves as a large port. Ships carry wool, wheat and meat fromSydneyto other countries.

　　People living inSydneylike to call themselves Sydneysiders. They are mostly friendly and easygoing. When they are not working, they love to have a good time at the beach, swimming and sailing.

　　根据短文内容回答下列各问题。

　　21. How old isSydney?

　　。 ________________________________________

　　22. How is the climate ofSydney?

　　。 ________________________________________