填空题

Memory is our most important possession. Without memory, you wouldn’t know who you are. You couldn’t think about the past or plan for the future. Memory is (36) for everything we do as human beings. Its (37) that we have this magical time machine in our heads that (38) us to record experiences and then use that information at a later time. (39) how the brain makes and (40) memories has to be one of the most important of all scientific (41) .
People who feel they must (42) for having a bad memory should stop using a poor memory as an excuse for forgetting things. The only people who have a poor memory are those whose memory function has been (43) by disease or damage. (44) . You must associate it with something. You must exercise it or risk losing its effectiveness. (45) . Second, cramming for finals is a very bad way to learn something that will last. Information from cramming will come in and go out. (46) .