2.reason n.理由.原因 [用法](1)reason后可接短语.构成reason for sth或reason for doing sth.或直接跟不定式.构成 reason to do sth.其意义都为“做某事的理由/原因 , (2)reason后也可接定语从句.一般由why引起, (3)当reason作主语接一个表语从句时.常常用that引导而不用why. [举例](1)Give your reason for changing the plan.你说说改变计划的原因. (2)There is reason to believe that he is dishonest. 有理由相信他不诚实. (3)Do you know the reason why he came late? 你知道他迟到的原因吗? (4)The reason why we are late is that our car did not come. 我们迟到的原因是车没有来. 【查看更多】