point for the butterfly journeys.I booked a two­night stay at the Hotel Rodavento, an all eco­friendly hotel with individual wooden houses spreading throughout the forest and around a lake.

　　The first sanctuary(保护区) I visited was Piedra Herrada, a popular destination, as it is only 40 minutes away from Valle de Bravo.The climb up is tiring.It is advisable to hire a horse.But the horse cannot take you all the way, and there is some hiking in thin air, so you must be patient, drink a lot of water, and be in reasonably good shape.

　　The walk is more than worth it though.As I struggled to catch my breath, I looked up and lost my breath again.At first glance, the trees had turned into different shapes, but on closer inspection, every inch of them was covered with butterflies.

　　A few flew through the air(Most of them were not warm enough)．As the sun rose, they began to come alive.Soon the air was filled with flying butterflies，transforming the forest into something magical and straight out of a fairy tale.

　　语篇导读　本文讲述了作者为观赏大规模蝴蝶迁徙的美景而搭车前往墨西哥的一个城镇的故事。

　　4．Why did the author choose to take The Muddy Boot van?

　　A．She couldn't afford to rent a car．

　　B．She preferred to travel alone.

　　C．She wanted to save some money．

　　D．She hoped to reach the destination earlier.

　　解析　C　细节理解题。根据第二段可知，作者预算有限，想节省钱，故选C项。

　　5．What can we learn about Piedra Herrada?

　　A．It is at a high altitude．

　　B．It is far from Valle de Bravo.

　　C．It is full of wild animals．

　　D．It is only accessible by riding a horse.

　　解析　A　推理判断题。根据第四段最后一句可知，在该地攀登时需要在空气稀薄的地方进行一段徒步旅行。结合常识可以推断出，Piedra Herrada海拔高，故选A项。

　　6．What made the author's hiking worthwhile?

　　A．Becoming healthier．

B．Breathing in fresh air.