精选优质文档-倾情为你奉上Unit 1 Festivals and Celebrations There are all kinds of festival/celebrations throughout the world, festival to satisfy and please the ancestors, to honour some famous people or important events , and to express peoples gratitude to God for bringing them a year of plenty For example , Japanese observe Obon , when people go to clean the graves and light incense in memory of their ancestors . In India , October 2 is a national festival to honor Mahatma G