What's your earliest childhood memory？ Can you remember learning to walk？ Or talk？ The fir

st time you【C1】______ thunder or watched a television program？ Adults seldom【C2】______ events much earlier than the year or so before entering school, just as children younger than three or four【C3】 ______ retain any specific, personal experiences. A variety of explanations have been【C4】______ by psychologists for this "childhood amnesia" (儿童失忆症). One argues that the hippocampus, the region of the brain which is responsible for forming memories, does not mature【C5】______ about the age of two. But the most popular theory【C6】______ that, since adults do not think like children, they can not【C7】______ childhood memories. Adults think in words, and their life memories, are like stories or【C8】______ -- one event follows

【C9】______ as in a novel or film. But when they search through their mental【C10】______ for early childhood memories to add to this verbal life story, they don't find any that fits the【C11】______ . It's like trying to find a Chinese word in an English dictionary.

Now psychologist Annette Simms of the New York State University offers a new【C12】______ for childhood amnesia. She argues that there simply【C13】______ any early childhood memories to recall. According to Dr. Simms, children need to learn to use【C14】______ spoken description of their personal experiences in order to turn their own short-term, quickly【C15】______ impressions of them into long-term memories In other【C16】______ , children have to talk about their experiences and hear others talk about【C17】______ -- Mother talking about the afternoon【C18】______ looking for seashells at the beach or Dad asking them about their day at Ocean Park. With out this【C19】______ reinforcement, says Dr. Simms, children cannot form【C20】______ memories of their personal experiences.

【C1】

A．listened

B．felt

C．touched

D．heard