1 . Located in Ontario, Canada, the Niagara Falls is the seventh wonder of the world and the fastest flowing waterfall in the world. When I went to tour it, I found there were some truly amazing ways to _________ the waterfall.

One way was to take a _________ to the center of the Niagara Falls. Everyone on board was given a raincoat that looked more like a garbage bag. We would need it later on when we got close to the waterfall. There were huge waves and thick mist (迷雾), although we were still far away from Niagara Falls. Inside the mist, another boat approached us. As that boat _________, we waved hello to the blue-coated _________. After a while, we were as _________ as possible to the waterfall, which was like a wall in front of the boat. The _________ here was white with huge waves that threatened (有……危险) to _________ over the boat. The _________ was so deafening that I couldn’t even _________ the person next to me shouting. __________, the boat turned around to __________ back to the dock (码头). A few minutes was enough to make this a very exciting __________.

Another __________ was to go behind the waterfall. This adventure started with everybody walking into a wet and __________ tunnel (隧道)one by one. It was __________ by several lanterns, making us see the tunnel clearly. As the tunnel came to an end, I could see that we had __________ onto a platform at the foot of the waterfall. Here, I had a good __________ of how thick the waterfall was. It was at least one meter __________.

__________ I experienced Niagara Falls, I was shocked by how __________ it was. And I look forward to taking the zip line (滑索) next time to view Niagara Falls from the sky. It will definitely be a wonderful time, too.