【正文】
d been more careful. If my lawyer had been here last Saturday, he would have prevented me from going. If he had e yesterday, I should / would have told him about it. 含義:He did not e yesterday, so I did 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(shí) 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(shí)間,這時(shí)主,從句謂語動詞的虛擬語氣形式因時(shí)間不同而不同,這叫做混合條件句。2 非真實(shí)條件句1)時(shí)態(tài):可以表示過去,現(xiàn)在和將來的情況。1 真實(shí)條件句 真實(shí)條件句用于陳述語氣,假設(shè)的情況可能發(fā)生,其中 if 是如果的意思。注意:1) 在真實(shí)條件句中,主句不能用be going to表示將來,該用shall, will. (錯(cuò)) If you leave now, you are never going to regret it. (對) If you leave now, you will never regret it. 2) 表示真理時(shí),主句謂語動詞便不用shall (will) +動詞原形,而直接用一般現(xiàn)在時(shí)的動詞形式。句型 : 條件從句 主句 一般過去時(shí) should( would) +動詞原形 If they were