You must know that Thanksgiving Day（感恩节）falls on the fourth Thursday in November every year．But do you know anything about the day following that day？In the USA，the day following Thanksgiving Day is called"Black Friday"．It's traditionally the beginning of the Christmas shopping season．On that day，many shoppers open at 4：00am，or earlier．Many people will （81）___ on that day．
At first，"Black Friday"is called because （82）___，owing to（由于）a great number of people who are shopping on that day．Later it was used to describe the day after Thanksgiving as the busiest shopping day of the year．
Across the country，prices are cut down on clothing，shoes and so on．People will enjoy discounts（折扣）as much as 80% in big or small stores．They often （83）___for their family members，friends，or themselves during Christmas shopping season．
