hce_tcu
104年
英文
第 36 題
📖 題組：
While the left hemisphere in the brain is innately predisposed to specialize for language, there is also evidence of considerable plasticity in the right hemisphere during the early stages of language development. Under certain circumstances, the right hemisphere can take over many of the language functions that would normally reside in the left hemisphere. An impressive illustration is provided by children who have undergone a procedure known as hemispherectomy, in which one hemisphere of the brain is surgically removed. This procedure is used to treat otherwise intractable cases of epilepsy. In cases of left hemispherectomy after language acquisition has begun, the children experience an initial period of aphasia. However, depending on the underlying disease that leads to the epilepsy, some children may reacquire a linguistic system virtually indistinguishable from that of normal children. They also show many of the developmental patterns of normal language acquisition. UCLA researchers who have studied many of these children hypothesize that the latent linguistic ability of the right hemisphere is “freed” by the removal of the diseased left hemisphere, which may have had a strong inhibitory effect before the surgery.
While the left hemisphere in the brain is innately predisposed to specialize for language, there is also evidence of considerable plasticity in the right hemisphere during the early stages of language development. Under certain circumstances, the right hemisphere can take over many of the language functions that would normally reside in the left hemisphere. An impressive illustration is provided by children who have undergone a procedure known as hemispherectomy, in which one hemisphere of the brain is surgically removed. This procedure is used to treat otherwise intractable cases of epilepsy. In cases of left hemispherectomy after language acquisition has begun, the children experience an initial period of aphasia. However, depending on the underlying disease that leads to the epilepsy, some children may reacquire a linguistic system virtually indistinguishable from that of normal children. They also show many of the developmental patterns of normal language acquisition. UCLA researchers who have studied many of these children hypothesize that the latent linguistic ability of the right hemisphere is “freed” by the removal of the diseased left hemisphere, which may have had a strong inhibitory effect before the surgery.
Which of the following is the main idea of this article?
- A Both left and right hemispheres can develop innate linguistic ability for normal people.
- B Hemispherectomy affects patient’s linguistic ability temporarily.
- C Young children have the plasticity of developing the right hemisphere for language.
- D The left hemisphere is predisposed to language.
思路引導 VIP
請觀察文章第二段關於大腦手術的案例：當原本負責語言的左半球被移除後，為什麼孩子們仍然有可能重新獲得與常人無異的語言能力？這項證據主要是想證明大腦在發育早期具備什麼樣的性質？
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AI 詳解
AI 專屬家教
太棒了！你能精準地從文章細節中提取出核心論點，選出選項 (C) 說明你對文章的架構與「大腦可塑性」的概念掌握得非常紮實。這類主旨題考驗的是區分「背景資訊」與「論述核心」的能力，而你展現了極佳的判讀力。
大腦的可塑性與語言發展
這篇文章的核心在於探討大腦的可塑性（plasticity）。雖然文章一開始提到左半球天生具有語言處理的優勢（predisposed to language），但這僅是作為對照。作者花了大量的篇幅說明：在幼兒時期的特殊情況下（例如進行大腦半球切除手術後），原本潛伏在右半球的語言能力會被「釋放」出來。這種「功能轉移」的能力，正是選項 (C) 所強調的「幼兒大腦具有發展右半球來處理語言的可塑性」。
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