[解析]
(1)D.细节理解题。根据第一段Two men were sitting together in a plane.They were on a long journey.One of the men was a businessman.The other was a farmer.They sat without talking for a while,then the farmer said, "Let's do something to pass the time."两个人坐在一架飞机上.他们进行了漫长的旅程.其中一个人是商人.另一个是农民.他们坐了一会儿没说话,然后农夫说:"让我们做点什么来打发时间."可知,两个人互不认识.故选D.
(2)A.细节理解题。根据第二段 "What do you want to do?" the businessman asked. "We can ask each other riddles." The farmer said, "You start." "Let's make the rules first," the businessman said. "That's not fair.You are a businessman with much knowledge.You know more things than I do.I am just a farmer.""你想做什么?"商人问道. "我们可以互相问谜语." 农夫说:"你开始吧." "让我们先制定规则,"商人说. "这不公平.你是一个知识渊博的商人.你知道的事情比我多.我只是一个农民."可知,riddles指的是谜语.故选A.
(3)B.推理判断题。根据第二段中"That's not fair.You are a businessman with much knowledge.You know more things than do.I am just a farmer.""这是不公平的.你是一个有丰富知识的商人.你知道的比做的多.我只是一个农民."以及第三段"That's true." The businessman said.可知"说的没错"商人说.由此可知,如果商人输了,他同意给更多的钱,是因为他认为他知道的比农夫多.故选B.
(4)D.细节理解题。两个人都不知道答案,根据约定商人付100美元给农夫,农夫付50美元给商人,所以农夫玩谜语游戏赢了50美元.故选D.