今天是Thanksgiving Day(感恩节)，提到Thanksgiving Day，美国人就会想到Black Friday(黑色星期五)，也就是感恩节过后的星期五。这一天，不仅是感恩节后的血拼日，也是圣诞购物季的开始。美国人纷纷上街抢购圣诞礼物。即使平时赔钱的商家这一天也会转亏为盈。（热门英语高分课程）
The term "Black Friday" is said to have originated in Philadelphia during the 1960s to describe the difficulty of police and drivers to deal with exceptionally heavy traffic on that day as shoppers flooded the city's commercial center.
The phrase was later co-opted by retailers to refer to the holiday shopping period as a time of year when their business moves into the black, or turns a profit.
Black Friday is the day many stores sharply discount high-priced items such as electronics and the latest new toys. Its name signifies retailers' expectations of high sales, as profits were once recorded in account books in black ink, while losses were recorded in red. Stores also open their doors hours earlier than usual, which helps foster excitement among bargain hunters.Black Friday is one of the most important days for retail chains because it indicates what they can expect during the next month of holiday shopping — their most lucrative time of year.But not everyone is in favor of the phenomenon. Protesters with the anti-capitalist Occupy Wall Street movement were encouraging people to take part in "Buy Nothing Day," a day of protest against consumerism observed worldwide.