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3．Some began to reform their legal systems and forbade（禁止）research into human cloning．

分析一些人開始改革他們的法律制度，禁止克隆人的研究．

解答 forbade 考查動詞．根據句意：一些人開始改革他們的法律制度，禁止克隆人的研究．forbade是動詞"禁止"．

點評本題考查動詞的詞義．動詞詞義題一直都是高考考查的一個熱點，它注重考查考生結合語境準確選用詞語和正確時態語態的能力和．由于英語詞匯豐富，且用法多變，考生掌握起來有較大難度，因此在平時應注意詞匯的積累，理解詞語的含義及其常見的習慣搭配，再聯系句子所表述的意義和語境，選出正確的答案．

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