一 、完形填空（本大题共1小题，共30分）
1.Twelve years ago，a young traveler named Rhett Butler from San Francisco，California，visited the Sabah rainforest on Malaysian Borneo.In the rainforest，he watched a bird flying through the trees.The beautiful sight left quite an impression on him.But weeks later，back home，Rhett Butler got the news that trees in the area he visited had been cut down.
That experience led Rhett Butler to write a book about rainforests and threats to their existence.But he did not publish the book.Instead，in 1999，he created a website，using his research for the book.The site is www.mongabay.com.His purpose was to inform the public of tropical rainforests.But the subject quickly developed.As a former businessman，he became a respected writer of science and environmental stories.
The popularity of Mongabay.com attracted advertisers.Small ads on the site pay for its operations.www.mongabay.com has grown and led to other sites，for example，www.kids.mongabay.com，a site for children; www.wildMadagascar.org，which is about the island that Rhett Butler called his favorite place.
