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.
7（）
A.leads
B.begins
C.helps
D.prepares
参考答案：D
解析：
[考点] 词汇搭配
本题考查学生对词汇的掌握能力。从语义搭配上来看，只有prepare能与for搭配，表示“为……作准备”，在此处符合题意。
[干扰项分析] A选项lead一般与to搭配；C选项一般与with搭配；help一般是用help sb．do sth．，所以这三个也均可排除。