1、表示与现在事实相反的情况： 从句：主语+过去时 主句：主语+should/would/could/might+do eg： 1．If I were you,I would take an umbrella. 如果我是你，我会带把伞。（事实：我不可能是你） 2．If I knew his telephone number,I would tell you. ...
求讲解虚拟语气用法。，高悬赏哦~
1、表示与现在事实相反的情况： 从句：主语+过去时 主句：主语+should/would/could/might+do eg： 1．If I were you,I would take an umbrella. 如果我是你，我会带把伞。（事实：我不可能是你） 2．If I knew his telephone number,I would tell you. ...