【正文】
not tell him about it. If he had not been ill and missed many classes, he would have made greater progress. 含義: He was ill and missed many lessons, so he did not make greater progress. c. 表示對將來的假想 句型: 條件從句 主句 一般過去時 should+ 動詞原形 were+ 不定式 would + 動詞原形 should+ 動詞原形 If you succeeded, everything would be all right. If you should succeed, everything would be all right. If you were to succeed, everything would be all right. 3 混合條件句 主句與從句的動作發(fā)生在不同的時間,這時主,從句謂語動詞的虛擬語氣形式因時間不同而不同,這叫做混合條件句。 If you had asked him yesterday, you would know what to do now. (從句與過去事實相反,主句與現(xiàn)在事實相反。) If it had rained last night (過去 ), it would be very cold today (現(xiàn)在 ). 4 虛擬條件句的倒裝 虛擬條件句的從句部分如果含有 were, should, 或 had, 可將 if省略,再把 were, should或 had 移到從句句首,實行倒裝。 Were they here now, they could help us. =If they were here now, they could help us. Had you e earlier, you would have met him =If you had e earlier, you would have met him. Had you e earlier, you would have met him =If you had e earlier, you would have met him. Should it rain, the crops would be saved. =Were it to rain, the crops would be saved. 注意: 在虛擬語氣的從句中,動詞 39。be39。的過去時態(tài)一律用 were,不用 was, 即在從句中 be用were代替。 If I were you, I would go to look for him. 如果我是你,就