There is no doubt that it is the greatest light show on Earth. But before you get lost in the beauty of the Northern Lights, it's worth remembering there are some pretty impressive forces at work behind the scenes.

　　Caused by collisions (碰撞事故) between gaseous particles in the Earth's atmosphere, the Northern Lights commonly appear during the winter months in northern countries like Canada, Finland, Alaska, Greenland, Norway, Sweden and the place that seems to be on everyone's travel wish list right now, Iceland. That includes Akureyri, which topped Lonely Planet's "10 Best Places in Europe" list in June. Less than 100 kilometres from the Arctic Circle, it's Iceland's second­largest city and a best spot to watch the Northern Lights dance through the sky.

　　Sleep in an overwater bungalow (平房)

　　The Four Seasons Resorts Bora Bora has 100 overwater bungalows. Nothing says "my vacation is way more wonderful than yours" quite like a photo taken from the edge of your overwater bungalow-particularly when it's in Bora Bora, according to TripAdvisor's users.

　　The Four Seasons Resorts Bora Bora is consistently rated as one of the world's best overwater bungalow resorts. Not hard to see why. It's made up of 100 overwater bungalows with traditional teak (柚木) wood furnishings and roofs covered with pandanus (露兜树) leaves.

　　Admire the sunset over Santorini

　　Open any Greece travel brochure and chances are you'll see a shot of the famed blue and white domed houses of Santorini. But the island's sunsets, which rank_with some of the best in the world, are just deserving of travelers' attention. The village of Oia is where you'll find some of the best sunset views, whether you choose to take it all in from a restaurant or offshore on a boat.

　　Have you ever been to those places? If not, what are you waiting for? Take action.

　　语篇解读：本文是一篇应用文，介绍了不容错过的三大梦幻之旅。

　　8．Where can we enjoy the Northern Lights best?

　　A．Akureyri. B．Alaska.

　　C．Greenland. D．Hawaii.

　　解析：选A　细节理解题。根据第三段"That includes Akureyri ... a best spot to watch the Northern Lights dance through the sky."可知，阿库雷里(冰岛北部城市)是观看北极光的最佳位置。

9．Why do people want to go to visit the Four Seasons Resorts Bora Bora?