【正文】
it做形式主語,不定式放在謂語動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 doIt 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,但possible可以用不定式作真實主語, 而probable不能用不定式作真實主語。Only that time did he do his homework. 直到哪個時間,他才做作業(yè)。No sooner had she gone out than the phone rang. 她剛離開,電話就響了。Never shall I go there again. 我再也不去那了。Here is your letter. 你的信。Mike said that he would e to school to see me the next day, but he didn’t e to school to see me the next day.Mike said that he would e to school to see me the next day, but he didn’t.(省掉最后九個詞,句子簡潔了許多),結(jié)構(gòu)緊湊 省略也是使上下文緊密連接的一種修辭手段。例如:We are to mee