4．
One day a police officer managed to get some fresh mushrooms．He was so pleased with what he had bought that he offered to share the mushrooms with his fellow officers．When their breakfast arrived the next day，each officer found some mushrooms on his plate．
One officer looked at the mushrooms carefully and then suggested，"They look nice，but I heard that some mushrooms might be poisonous（有毒的）．Let's get Jimmy to examine a piece for us．"Jimmy was the dog they kept．They brought it in，and fed it one piece of mushroom．The dog quickly ate it，and seemed to enjoy his mushroom．Fifteen minutes later，Jimmy was still alive and kicking without showing any discomfort．The officers were relieved（放心的） and began to eat their meal，saying that the mushrooms had a very strange but quite pleasant taste．
However，an hour later，the gardener rushed into the room and reported in a sad voice that the dog was dead．The officers were astonished and their faces turned white out of fear．Immediately，they jumped into their cars and rushed to the nearest hospital．The doctors and nurses used pumps（吸物器） to help them get rid of the mushrooms that remained in their stomachs．Everyone had a hard time．
When they returned to the police station，they sat down and started to discuss the mushroom poisoning．Each man explained the pains he had felt and they agreed that it had grown worse on their way to the hospital．"The poor dog must have died a painful death，"said one officer．"Let's ask the gardener how it died．"
So they called the gardener in and asked him more details about Jimmy's death．The gardener sighed and said，"Jimmy was a good dog．It is said that a car hit him in the middle of the road．But I guess it didn't suffer much．It died the moment it was hit．"
88．What did the police officer want to do with the fresh mushrooms？He wantedtosharethemushroomswithhisfellowofficers．
89．Why did the officers get Jimmy to eat the mushrooms first？Because theyheardthatsomemushroomsmightbepoisonous，theygetJimmytoexamineapieceforthem．
90．When did the officers begin to eat the mushrooms？Fifteenminuteslater，Jimmywasstillaliveandkickingwithoutshowinganydiscomfort．Theofficersbegantoeattheirmeal．
91．Why did the officers rush to the nearest hospital？Because they thought the mushrooms were poisonous．
92．How did the officers feel on their way to the hospital？They are afraid．
93．What have you learned from this story？Seeing is believing!．
