how are the cratchet family presented in stave three of a christmas carol?

The Ghost transports Scrooge to the modest house of Bob Cratchit. His family, dressed in its best clothing, waits for Bob to return from church before they eat dinner. He comes in with his small, crippled son, Tiny Tim. They discuss Tiny Tim's good heart and his growing strength, then have a wonderful dinner. When Scrooge asks, the Ghost informs him that, unless the future is altered, Tiny Tim will die. At the dinner, Mrs. Cratchit curses Scrooge, but her husband reminds her that it is Christmas.