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動詞不定式和動名詞放句首有什么區別

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動詞不定式和動名詞放句首有什么區別


動詞不定式和動名詞(ing)作主語比較 一. 動詞不定式表示比較具體的意義 ， 經常和特定的動作和執行者聯系起來 ， 經常帶時間或地點狀語 ， 有時表示將要發生的動作 。To master a foreign language is no easy job. To do it well is my earnest desire To see this film is to waste time. To solve this problem is out of the question 動詞不定式（短語）作主語時 ， 常見的另一種形式是在句首用先行代詞it作形式主語 ， 而將動詞不定式（短語）移到謂語之后作真正主語 。用于這種形式是一些特定形容詞 ， 動詞和名詞 1)形容詞作表語（常見的形容詞有：important, difficult, easy hard possible） It is foolish to act in this way. It sounds reasonable to do it this way. It appears likely for them to arrive. 2) 動詞作謂語（常見的動詞有：require, cost, amuse, delight, irritate, annoy) It took much time to do this. It makes us excited to think about that. It needed hard work to finish the job. It does no good to say like that. It didn't occur to me to ask him to help me. 3)名詞作表語 It seems a pity to waste them. It is a great pleasure to do this It is a good idea to think this way. 二. 動名詞表求比較抽象（一般）和經常性的意義 ， 有時可同不定式互換 Collecting stamps is a good hobby. Swimming is a best sport in summer. There is no telling what will happen. There is no denying the fact. There is no need informing him of it. 動名詞短語作主語時 ， 常見的另一種形式是在句首用先行代詞it作形式主語面將動名詞短語移至謂語之后作真實主語 。用于這種形式是一些特定形容詞和名詞 1)形容詞作表語(常見的形容詞有：enjoyable, good, hard, worthwhile) It is nice talking to you. It's foolish behaving like that. It is useless doing that 2)名詞作表語 It's waste of time doing this. It's no good (use) doing that. It's an awful job doing this. It's fun doing thisIt is not an easy task doing this work.
【動詞不定式和動名詞放句首有什么區別】

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