You will have no reason to think

You will have no reason to think about the merely statistical fact of the number of years you have already lived, still less of the probable shortness of your future.
A、It is not necessary for you to think about the past days and how short it is in your future time.
B、It is necessary for you to think about the days in your past • because you have little time for the future.
C、You need not think about your past days. You should consider your future life much.
D、You should think about the years you have already lived, and the future days you will live.
【正确答案】：A
【题目解析】：此题考查对句意的理解。have no reason意为“没必要，没理由”，“the merely statistical fact of the...”与"less of the probable...”并列作think about的宾语,此句可理解为：你没有必要考虑你已经活过了多少个时日，也没有必要考虑你未来的日子将会何等短暂。因此只有选项A符合题意。答案为A。