第三部分　阅读理解（共20小题；每小题3分，满分60分）
阅读下面短文，从每题所给的四个选项（A，B，C，D）中，选出最佳选项，并在答题卡上将该项涂黑。
A
Joyce Yuan and her host family
As I began to feel completely sick of the cold North American winter, spring break finally arrived! What made me even more excited was that we were going to Florida to enjoy the warm weather!
Just imagine wearing short sleeves or a swimsuit under the hot Florida sun!
Before the vocation started, we had a little episode at the airport. The alarm sounded when my host mom and I were walking through the security check. We were taken away to have further checks, but when they finally told us that we could go, we felt easy and amused. It was just because of the decorations on my pants and the tinfoil(锡纸) around my host mom’ chewing gum! －Just as a reminder, no overly fashionable pants or tinfoil on a plane!
Of course, I had a lot of first experiences during this special vacation. Since eight of us were living in a house, we had to share a room with my 4-year-old host sister. She is tiny compared to me, but she took up about two thirds of the bed. Moreover, because I was not used to sleeping in the same room with others, I was afraid of waking up and hardly slept at all.
Luckily, except for all that, everything went really well. My host family were really warm-hearted, and they wanted me to try everything new. With their “persuasion”, I was “forced” to go boating, which turned out to be really fun. We went through some canals and I saw manatees(海牛) and dolphins with my own eyes for the very first time!
When we finally landed in Wisconsin again, everyone looked brown and full of energy! 
56. According to the passage, the reason why we were taken away to have further checks was that___________.
A. my pants and my host mom’s chewing gum
B. we carried some things that are not permitted
C. they considered us to be thieves
D. we had not passports with us
57.During the travel, the author experienced the following things for the first time EXCEPT_________.
A. sharing a room with a 4-year-old girl               B. going boating
C. seeing manatees and dolphins with her own eyes      D. taking a plane 
58.According to the passage, how many people went to Florida for traveling with the author together?
A. Seven                B. Eight           C. We don’t know it    D. Nine
59. From the passage, we can infer that the author felt the vacation was_____.
A. frightening            B. amazing         C. memorable             D. challenging