【正确答案】正确答案：As to the first one, an immediate assumption coming to our mind would be the person is ask for the time. The assumption that the hearer gets arises out of the conventional meaning of the expression. The conventional meaning is related to the existing knowledge of the world, and is the meaning that is achieved by the conventions, and is generally accepted by the society. It can be accessed to when we turn to the knowledge towards the world that we have. The expression " 几点了 " is such an conventional meaning that when it is spoken out, everyone will unexceptionally accept it as a way of asking for the time. As to the explanation of the senond one, Levinson"s M-principle could come into use. Considering the context, which is in the bus stop, what it expresses is no longer a conventional one, but rather a conversational implicature. According to M-principle, the speaker normally will not use a prolix, obscure or marked expression without reason; on the hearer"s side, if the speaker used a prolix or marked expression, he did not mean the same as he would have had he used the unmarked expression. That is to say, in the normal situation, in a bus stop as the example above has shown, the intention of that the speaker asks others whether they wear the watch or not is not merely to care about the recipient has a watch or not, but has some other reason, because it would be bizarre to ask a stranger in the bus stop about such a personal staff. Therefore, the hearer has to assume that the expression is related to the situation, and this expression is not what it literally mean. Following this, the hearer reaches a connection between the bus stop and the watch, that is the time. As a consequence, he knows what the speaker intends is the inquiring of the time.