1) the people who take part in the performance 2) this rises at the beginning of the performance and comes down at the end 3) the actors and actresses wear these 4) the objects or furniture used in the performance 5) the performances take place on these 6) the painted background that shows where the story takes place 7) the use of lights to give different effects during the show

the people who take part in the performance — cast (актёрский состав: актёры, актрисы и другие исполнители)

this rises at the beginning of the performance and comes down at the end — curtain (занавес)

the actors and actresses wear these — costumes (костюмы)

the objects or furniture used in the performance — props (реквизит: предметы и мебель, которые используют на сцене)

the performances take place on these — stage (сцена)

the painted background that shows where the story takes place — scenery / backdrop (декорации / задник — нарисованный фон, показывающий место действия)

the use of lights to give different effects during the show — lighting (световое оформление, световые эффекты)