本期我们来讨论in case表示的逻辑语义关系。首先请看一道高考题:Leave your key with your neighbor you lock yourself out one day.(2012年辽宁卷)A.as long as B.even though C.in case D.as if不难看出,本题的正确答案为选项C。在本句中,in case之前的部分“leave your key with your neighbor”是主句;in case之后的部分“you lock yourself out one day”是从句,表达一个将来可能出现的情形——有一天“你”把自己锁在了门外。 In this issue we discuss the logical semantic relations in case. First look at a college entrance examination questions: Leave your key with your neighbor you lock yourself out one day. (2012 Liaoning volume) A.as long as B.even though C.in case D.as if not difficult to see that the correct The answer is Option C. In this sentence, the part before “in case” is the main clause; the part after in case “you lock yourself out one day” is a clause that expresses a possible future situation - - one day “you” locked yourself outside.