Did you ever have someone’s name on the tip of your tongue and yet you were unable to recall it (1) this happens again, do no (2) to recall it. Do something (3) for a couple of minutes, (4) the name may come into your head. The name is there since you have met (5) person and his name. It (6) has to be dug out. The initial effort to recall (7) the mind for operation, but it is the subconscious (8) that go to work to dig up a (9) memory. Forcing yourself to recall (10) never helps because it doesn’t (11) your memory；it only tightens it. Students find the preparatory method help (12) examinations. They read over the questions (13) trying to answer any of them. (14) they answer first the ones (15) which they are most confident. Meanwhile, deeper mental activities in the subconscious mind are taking (16) ; work is being done on the (17) difficult questions. By the time the easier questions are answered, answers (18) the more difficult ones will usually begin to (19) into consciousness. It is often (20) a question of waiting for recall to come to the memory.
3（）
A.simple
B.apart
C.else
D.similar
参考答案：C
解析：
[考点] 词义辨析
空格前的句子提到，当你想不起来的时候，无须费力去想它。那么按照正常的逻辑推断，接下来应该是说你可以做点别的事情或者换换脑子。因此根据上下文，可确定答案为C，先做几分钟别的事情，符合逻辑关系。
[干扰项分析] A选项simple表示“简单的”；B选项apart是副词，表示“分开地”；D选项similar表示“相同的，相似的”，均不符合题意。