Ellen Parker was worried about her health．She couldn't walk very quickly and it was difficult for her to climb stairs, she was soon out of breath． “I suppose I had better go to the doctor,”she thought． She went to the doctor and told him her problem． “I'm not at all surprised,”he said．“It's clear what your problem is．” He examined her and then gave her some advice．“If you don't do what I say, Mrs Parker,”he said,“then you will have a heart attack．It could kill you．” Ellen was very worried as she left the doctor's． She knew that she had to take his advice but that it would not be easy and that it would take time． The next day she went shopping．The first shop she went into was a butcher's shop． “I'd like ten pounds of steak, please,”she said． “Certainly, madam,”the butcher replied and went into the cold storage room and found a large piece of steak． He brought the huge piece of meat back into the shop and placed it on the scale(秤)． “That's just under ten pounds,”he said． The butcher worked out the price． “At ＄4.99 a pound that will be ＄45.50 please．Shall I cut it up into small pieces for you?” “Oh, I don't want to buy the meat,”Mrs Parker said． “If you don't want to buy it,”the butcher replied,“why did you ask me to get it for you?” “I just wanted to see what 10 pounds of meat looked like．” | 
