C．Thrihnukagigur D．The Hotel Rangá.

　　解析：选B　细节理解题。根据第三段中的"each of which has a private chef"可知，在The Resort at Paws Up，每个营地都配有私人厨师，由此可知，游客在这里可吃到非常符合自己口味的食物，故选B。

　　3．What do the three vacations have in common?

　　A．They are adventurous.

　　B．They are animal­centered.

　　C．They have luxury hotel options.

　　D．They are intended for new travelers.

　　解析：选A　推理判断题。第一个项目提到"adventurers"，第二个项目提到"take a hot air balloon trip, or ride horses"，第三个项目提到寻求刺激的人可以下到700英尺深的休眠火山中。故这三个项目的共同点就是：adventurous"惊险的，刺激的"。

　　B

　　When he was 22, Rob Stewart traveled the world for four years. He wanted to call attention to the mistreatment of sharks. His 2007 film, Sharkwater, documents the cruel practice of removing sharks' fins (鳍) for money and leaving the animals to die. In his latest documentary, Revolution, Stewart takes on an even bigger challenge: climate change.

　　The Canadian filmmaker says that climate change has harmed people and places everywhere: "It is stronger than any government or organization. If we educate people, they will make better decisions about protecting natural resources."

　　According to a recent report on climate change, "The atmosphere and ocean have warmed, the amounts of snow and ice have reduced, and the sea levels have risen." These developments are endangering crops, wildlife, fish, and even people.

　　Stewart says that the consequences of climate change will be irreversible unless people take action, especially young people. "It's up to kids to be the moral compass (道德指南) of society，" he believes, "and say, 'Guys, this is not right.'"

　　Many kids took action after seeing Sharkwater. Elementary school students in the Northern Mariana Islands, for example, got their local government to ban the sale of shark fins.

　　Felix Finkbeiner, 17, of Germany is also part of the "revolution" to save the planet. In 2007, Felix started a youth group called Plant­for­the­Planet, whose motto is "Stop Talking. Start Planting." The group raises money to plant trees. So far, PlantforthePlanet has planted nearly 200 trees around the world. "Future generations are the ones who will be suffering the most from inaction (无作为)，" Felix says. His goal is to plant millions of additional trees.

"When we started four years ago，" Felix tells Stewart in Revolution, "we thought we had to save the polar bear. We thought we had to save the environment. But soon after, we found out