Unit9OptimismandPessimism
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Unit 9 Optimism and Pessimism（精选2篇） 一. 教学内容：unit 9 optimism and pessimism. lesson 2 and lesson 3二. 重点、难点：（一）单词：optimism n. 乐观；乐观主义optimist n. 乐天派；乐观者optimistic adj. 乐观的pessimism n. 悲观；悲观主义pessimist n.
Unit 9 Optimism and Pessimism（精选2篇） 一. 教学内容：unit 9 optimism and pessimism. lesson 2 and lesson 3二. 重点、难点：（一）单词：optimism n. 乐观；乐观主义optimist n. 乐天派；乐观者optimistic adj. 乐观的pessimism n. 悲观；悲观主义pessimist n.