A
Chugach State Park
Chugach State Park is the largest urban park in the world，spanning more than 200，000 hectares(公顷)．In fact，it is almost ten times as large as Table Mountain National Park，the world’s second-largest．Chugach State Park is located in Anchorage，Alaska．The park itself contains various different geographical features，including tall mountains，foothills，lakes，and rivers．It also includes hiking trails that are very popular with tourists．
Pedra Branca State Park
It is an urban park spanning 12，394 hectares in one of Brazil’s largest cities，Rio de Janeiro．It can more accurately be described as an urban forest．The park protects half of what is known as the Atlantic Forest remnant of Rio de Janeiro．It contains more than 900 species of plants and almost 500 different species of birds，mammals，reptiles，and fish．
MargaUa Hills National Park
The third-biggest urban park in the world，consisting of 17，386 hectares，is located in the city of Islamabad，which is the capital of the South Asian nation of Pakistan．The park was established in 1980．The park boasts several species of birds，reptiles，and mammals，and it is an extension of the Islamabad wildlife sanctuary(鸟兽保护区)．It also includes several hiking trails that are popular with tourists and locals．
Bukhansan National Park
It is located in Seoul，the capital of South Korea．The park itself，which has an area of 7，992 hectares，has been designated by the Guinness Book of World Records as the“Most Visited National Park per Unit Area，”and is visited by an estimated 5 million people a year．It is very popular with hikers and contains Buddhist temples．The park is also home to around 3，100 animal species．
21．What do we know about Table Mountain National Park?
A．It is located in the US．
B．It is the largest urban park．
C．It has an area of 20，000 hectares or so．
D．It’s the most famous for its different species．
22．Which is your best choice if you are interested in studying varieties of plants?
A．Chugach State Park． B．Pedra Branca State Park．
C．Bukhansan National Park． D．Margalla Hills National Park．
23．What do Margalla Hills National Park and Bukhansan National Park have in common?
A．Both of them lie in Asia．
B．Both of them are of the same size．
C．Both of them are especially popular with foreigners．
D．Both of them are home to endangered animal species．
