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All, both 和 each 和含有 every 的復(fù)合代詞用在否定句中只表示部分否定?! 〔欢ù~還可作定語(yǔ)。但 none 和由 some, any, no, every 構(gòu) 成的復(fù)合不定代詞(如 somebody 等)只能作主語(yǔ)、 賓語(yǔ)和表語(yǔ)?! t做形式主語(yǔ),不定式放在謂語(yǔ)動(dòng)詞之后常用于下列結(jié)構(gòu)中: (1)It is/was +adj.+of sb. to do… (2) It is +adj.+for sb.+to do… It is easy / difficult / hard / foolish / unwise / right / wrong / unnecessary (3) it is +a +名詞+ to do... It is a pity / a pleasure / a pleasant thing / one’s duty / an honor / a shame / a crime / no easy job… to do It takes (sb.) some time / courage / patience …to do… It requires courage / patience / hard work… to do… 注意: probable和possible均可作表語(yǔ),但possible可以用不定式作真實(shí)主語(yǔ),而probable不能用不定式作真實(shí)主語(yǔ)?! ∪纾篒 hope to do morning exercises from today./ We have not seen each other since 199