阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。
A
The news that all teachers were expected to attend camp with their students left me feeling unsettled. For the first time in more than 20 years, I would need to spend three days in the early autumn bush with 120 14-year-olds.
I love spending time with teenagers. But I teach Grade 12 English and am 51 years old. There is a difference between a literary seminar (研讨课) on King Lear, no matter how lively it may be, and late-night party in a campground. Besides, my idea of “outdoors” is biking on the Ottawa bike paths or sitting in the backyard with a cup of tea and a good book.
Eventually, we turn down a long dirt track that dives deep into a forest. I read the schedule and note the impressive minute-by-minute detail for the next 72 hours. I’ve never faced such a structured time since, well, when I went to camp in Grade 9. I think of home.
The next morning, I arise early. It is 7 a.m. Time for the polar bear dip. Everyone asks if I am going to swim. I respond with lame excuses and then wander, like a Grade 8 boy at the edges of a middle-school dance. Kids charge in, great plumes (一缕，一股)of water rising up around them as they shout with joy. My colleagues link arms, count down and run into the water bravely. Toweling off, the swimmers discuss the water temperature. The regret that I knew I would feel starts to kill me. I will now forever be the guy who did not take part in the polar bear dip. I walk slowly up to the dining hall and decide that from that moment on I will commit fully to camp life. My unwillingness to do anything is replaced with a burning desire to do everything.
At 7 a.m. the next morning, I am the first person on the beach in my bathing suit. I dive into the water. I scream about how good it feels. Toweling off afterward, I talk to anyone within earshot about the temperature of the water.
Later that day, the camp winds down. Something has happened in this camp. To the students, for sure, but also to me. When the last camper leaves, I give the camp director a big hug.
21. How did the author feel before the camp?
A. Angry. B. Disappointed. C. Anxious. D. Excited.
22. Why does the author mention the literary seminar in Paragraph 2?
A. To stress its liveliness.
B. To explain its topic.
C. To introduce his preference.
D. To show its similarity to camping.
23. Why does the author decide to devote himself to camping?
A. He is fed up with making excuses.
B. He hates to be regret-stricken.
C. He desires to show off his swimming skills.
D. He is encouraged to do so by his colleagues.
24. What happened to the author at the end of the camp?
A. He has used up his energy. B. He misses home very much.
C. He turns into a camp director. D. He has become a camp lover.
