A
(2019·日照检测)When I was a child growing up in Ohio，the butterflies would sometimes pass through on their way to Mexico.And it was awesome to see football fields full of them—and I wanted to revisit that on a larger scale.I knew I had to go to see the migration(迁徙) in Mexico.
But I was on a budget.I didn't want to rent a car in Mexico or take a bus to Valle de Bravo，the starting point for most butterfly adventures，so I called the guys at The Muddy Boot，travel experts in Mexico who can make almost anything happen at a reasonable rate.
And so，on January 2，I found myself in The Muddy Boot van(面包车)，being driven for two hours from Mexico City to Valle de Bravo，a lovely town on a volcanic lake which is a central 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.
【语篇解读】 本文是一篇日志形式的记叙文，作者讲述了自己为参观大规模的蝴蝶迁徙的美景而搭车前往墨西哥的一个城镇的故事。虽然旅途劳累艰辛，但作者实现了愿望，看到了美丽的蝴蝶翩翩起舞，它们装扮了途经的森林。
1．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.
C [ 细节理解题。根据第二段中的“But I was on a budget”可知，作者预算有限，想节省钱。故选C。]
2．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.
A [推理判断题。根据第四段中的“and there is some hiking in thin air，so you must be patient，drink a lot of water，and be in reasonably good shape”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，旅行者需要有耐心，多喝水，身体还要不错。由此可以推断出Piedra Herrada是在高海拔处。]
3．What made the author's hiking worthwhile?
A．Becoming healthier.
B．Breathing in fresh air.
C．Finding trees of different shapes.
D．Seeing the butterfly migration.
D [推理判断题。根据第五至六段的描述可知，虽然作者达到目的地前经历了一段艰辛的徒步旅行，但最后看到美丽的蝴蝶的那一刻，作者感到辛苦是值得的，故选D。]
4．What type of writing is the text?
A．A news report. B．A scientific paper.
C．A travel diary. D．A commercial ad.
C [推理判断题。本文作者以第一人称叙述了自己观看蝴蝶迁徙的起因、经过和结果，是一篇旅行日志。]
