2. 职称英语
  3. What is brain plasticity? Does it mean that our brains are made of plastic?

What is brain plasticity? Does it mean that our brains are made of plastic?

游客2024-12-03  31
问题     What is brain plasticity? Does it mean that our brains are made of plas
tic? Of course not. Plasticity, or neuroplasticity, is the lifelong ability of the
brain to reorganize neural pathways based in new experiences. As we learn, (1)______
we acquire new knowledge and skills through instruction or experience. In
order to learn or memorize a fact or skill, there must be persistent functional
changes in the brain that represents the new knowledge. The ability of the (2)______
brain to change with learning is that is known as neuroplasticity. (3)______
    To illustrate the concept of plasticity, imagine the film of a camera. Pre
tend that the film represents your brain. Now imagine using the camera to
take a picture of the tree. When a picture is taken, the film is exposed to new (4)______
information—that of the image of a tree. In order the image to be retained, (5) ______
the film must respond to the light and change to record the image of the tree. (6)______
Still, in order for new knowledge to be retained in memory, changes in the (7)______
brain representing the new knowledge must happen. (8)______
    To illustrate plasticity in another way, imagine making an impression of
a coin in a lump of clay. In order for the impression of the coin to appear in
the clay, changes must occur in the clay—the shape of the clay changes as
the coin is pressing into the clay. Similarly, the neural circuitry in the brain (9) ____
must reorganize in return to experience or sensory stimulation. (10)______ [br] (3)
选项
答案 that — what
解析 此题关键在于能否真正理解名词性从句。此句中主语补足语由名词性从句充当，那么应该用哪一个代词作名词性从句的引导词呢?这取决于引导词在名词性从句中可充当什么成分。如果名词性从句本身是一个完整的陈述句，那么用that引导。但是此句中，引导词充当的是从句的主语，所以应该用what。
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