1. 根据材料内容，选择正确答案。

    Toronto is the biggest city in Canada. It is famous for the CN tower, Niagara Falls(尼亚加拉大瀑布)and some other famous places.

    The CN tower is 553 metres high. It is the world's highest tower. You can stand on a glass floor. Do you think it may break? If you think so, you are wrong, because the glass is very strong. If you look down from the CN tower, you will see a large stadium, the Skydome (天虹体育馆). The Skydome has a special(特殊的) roof(屋顶). The roof can open and close. So don't worry about the rain when you are watching a match there.

    Niagara Falls is one of the biggest falls in the world. It is made up of two falls. One is in the US. People call it American Falls. The other is in Canada. People call it Canadian Horseshoe Falls. The Horseshoe Falls drops from 52 metres high. It is 679 metres long. The sound of the water falling is so loud there. You cannot hear yourself talk! It is very exciting!

1. （1） What is Canada famous for?

   A . Big Ben. B . The River Thames.    C . Cape Town. D . The CN tower and Niagara Falls.
3. （2） Where is the CN tower?

   A . In London. B . In Washington DC C . In Cambridge. D . In Toronto.
5. （3） The world's highest tower is          metres high.

   A . 528 B . 553 C . 605 D . 679
7. （4） What will you see if you look down from the CN tower?

   A . The Niagara Falls. B . The American Falls. C . The Skydome. D . The Horseshoe Falls.
9. （5） Which of the following is TRUE?

   A . Toronto is the capital of Canada. B . Rain can't fall into the Skydome. C . The American Falls is the biggest falls in the world. D . You can hear others talk near the Niagara Falls.