The Amazon is a world of trees and water in the middle of South America. It's the world's mightiest river, __________ (1) through the world's largest tropical rainforest.Most trips to the Amazon are based in either a boat or a lodge. If you __________ (2) travelling by boat, many organised trips __________ (3) travelling on the main river with side trips on smaller tributaries, either in motorboats or in canoes. If you prefer __________(4) the rainforest on foot, you can usually find some local people who are ready to __________ (5) you through certain parts of it despite all kinds of difficulties. If you want a little more __________ (6), the upper Amazon flows off the Andes, creating ideal opportunities for rafting through __________ (7) visited areas.While the overwhelming beauty of the Amazon lies in its __________(8) and complex nature, it is also a place where plants are king, insects come a close second, and animals hide to __________ (9). With a good guide you will see many birds and some mammals, including monkeys, but only if you are very __________ (10) will you see a jaguar (美洲虎).