1,万圣节（Halloween）.Halloween is a holiday celebrated on the night of October 31.[1] Halloween activities include trick-or-treating,ghost tours,bonfires,costume parties,visiting "haunted houses",and carving jack-o-lanterns.Irish immigrants carried versions of the tradition to North America in the nineteenth century.Other western countries embraced the holiday in the late twentieth century.Halloween is celebrated in several countries of the Western world,most commonly in Ireland,the United States,Canada,Puerto Rico,the United Kingdom,New Zealand,and occasionally in parts of Australia.
2.情人节（Valentine's Day）.Valentine's Day or Saint Valentine's Day is a holiday celebrated on February 14.In the Americas and Europe,it is the traditional day on which lovers express their love for each other by sending Valentine's cards,presenting flowers,or offering confectionery.The holiday is named after two among the numerous Early Christian martyrs named Valentine.The day became associated with romantic love in the circle of Geoffrey Chaucer in the High Middle Ages,when the tradition of courtly love flourished.