A
Ottawa is the capital of Canada. It is the second largest city in Ontario and the fourth largest city in the country.
The Centre Block is the main building on Parliament Hill (国会山). It is also the location of several ceremonial spaces, such as the Hall of Honor and the Memorial Chamber. The present Centre Block is the second iteration of the building, after the first was destroyed by fire in 1916, and it is one of the most recognizable buildings in Canada.
Downtown Ottawa is the commercial and economic centre of the city. Most of the buildings are office towers. While most of Ottawa's high tech industry is based elsewhere, it has a significant presence in the downtown core. The downtown also contains a number of apartments, hotels, and the older single family homes and townhouses along its edges.
The National Gallery of Canada is one of Canada's premier art galleries. The Gallery has a large and varied collection of paintings, drawings, sculpture and photographs. Although its focus is on Canadian art, it also holds works by some noted American and European artists.
The Rideau Canal is the oldest continuously operated canal system in North America. At the very beginning, the purpose of the Rideau Canal was military, as it was intended to provide a secure supply and communication route between Montreal and the British naval base in Kingston. It remains in use today primarily for pleasure boating, with most of its original structures undamaged. The locks on the system open for navigation in midMay and close in midOctober.
【语篇解读】 文章描写了加拿大渥太华著名的几处地方，并分别对这几处地方进行详细的说明。
1．The underlined word “iteration” in the 2nd paragraph probably means “________”．
A．repair B．design
C．copy D．landmark
答案与解析：C 词义猜测题。从第二段“The present Centre Block is the second iteration of the building, after the first was destroyed by fire in 1916.”可知，现如今的中央街区是重新翻修的，以前的那一座在1916的大火中被毁坏了。所以iteration的意思相当于copy“复制品”，故选C。
2．In the core of Downtown Ottawa, we could see ________.
A．a large number of tall towers
B．head offices of Ottawa's high tech industry
C．a number of apartments and hotels
D．the older single family homes and townhouses
答案与解析：B 细节理解题。根据文章第三段“Most of the buildings are office towers. While most of Ottawa's high tech industry is based elsewhere, it has a significant presence in the downtown core.”可知在渥太华的市中心都是办公大楼，而且主要是高科技行业的办公大楼。
3．Collections in the National Gallery of Canada are mainly ________.
A．paintings and drawings
B．sculpture and photographs
C．works by Canadian artists
D．artwork by Americans and Europeans
答案与解析：C 细节理解题。根据倒数第二段“The Gallery has a large and varied... Although its focus is on Canadian art, it also holds works by some noted American and European artists.”可知，主要收藏的是各种各样的画以及雕像、照片。它主要是收藏加拿大人的艺术作品，同时也收藏一些著名的美国人和欧洲人的作品，故选C。
4．Which of the following is TRUE about the Rideau Canal?
A．It is the oldest canal system in North America.
B．It was originally for the military purpose.
C．The original structures remain never changed.
D．People can only go boating from May to October.
答案与解析：B 推理判断题。根据最后一段“At the very beginning, the purpose of the Rideau Canal was military”可知，最初的目的是用于军事。
