A
The Kentucky Derby is a horse race held every year in Louisville，Kentucky，United States on the first Saturday in May.Here are some helpful suggestions for your first trip to the Kentucky Derby!
Fashion vs.Comfort
In many ways，the Kentucky Derby is the world's largest and most entertaining fashion show，with impressive hats and clothes！You will be on your feet and walking a lot，so pack a pair of comfortable shoes to change into during the day.
Your Tickets
You MUST have your tickets in order to get through the gates.Please note the only place that has official permission to buy and resell Kentucky Derby tickets is the Kentucky Derby Tickets Exchange.Law enforcement officials will be on site to prevent people from selling tickets at a much higher price.
If you have questions about your tickets in advance of the Derby，please call Churchill Downs customer service at 5026364400.
Finding help
With over 14,000 employees throughout the track on Derby day，you aren't too far from someone who can help.If you cannot find an employee to help you，please text the word HORSE to 69050 and you will be placed in touch with Guest Services.
Safety & Security
For the safety of all our guests，your bag may be searched by security.A number of items are forbidden from entering the facility (场所)．
For security and crowd control reasons，you cannot enter the facility again after you get out.This means that you will not be able to go outside the gate to fetch items from your car once you have passed through security.Please be sure to bring everything you need.
文章大意：本文是一篇说明文。主要说明了Kentucky Derby的特色以及人们参加时应该要注意的事项。
21．What is the dressing tip？B
A．Dress in popular sports clothes.
B．Prepare a pair of comfortable shoes.
C．Bring several sets of clothes to change into.
D．Put on a hat to provide protection from the sun.
解析：细节理解题。由第二段“You will be on your feet and walking a lot，so pack a pair of comfortable shoes to change into during the day.”可知，参加Kentucky Derby时走一长段路，因此要准备一双舒服的鞋子。A，C，D文中均未提到，故B正确。
22．What should you do if you want to resell your tickets？A
A．Go to the Kentucky Derby Ticket Exchange.
B．Call Churchill Downs customer service.
C．Consult law enforcement officials.
D．Find a buyer by yourself.
解析：细节理解题。由第三段“Please note the only place that has official permission to buy and resell Kentucky Derby tickets is the Kentucky Derby Tickets Exchange.”可知，要转卖票务需要在Kentucky Derby Tickets Exchange进行，故A正确。
23．What can we learn from Safety & Security？D
A．You cannot enter the facility after the game begins.
B．You can bring whatever you need into the facility.
C．Your car needs to be examined by security.
D．You are not allowed to reenter the facility.
解析：推理判断题。由“A number of items are forbidden from entering the facility (场所)．”可知有些物品不能带进，故B错误；由“your bag may be searched by security”可知，要检查背包而不是汽车，故C错误；由“For security and crowd control reasons，you cannot enter the facility again after you get out.”可知，如果出了大门不能再次进入场内，得出D正确，而A文章未提及，错误。故D正确。
