4. 名词性从句
• 凡是与advice, suggest, propose, require, insist, order, deem等表示“愿望”，“请 求”，“建议”和“命令”含义的词相关 的各种从句其虚拟语气的拟语气总结
英语中虚拟语气的变化形式主要可以分为4类： 1. 时间向前推 2. 与主句谓语动词比先后 3. 表示“为了···” 4. 名词性从句
1.时间往前推
和现在比：did/ were
1. 条件状语从句
和过去比：had done 和将来比：were to do/ should do 和现在比：did/ were
2. Wish/ if only
和过去比：had done/ could have done 和将来比：would/ could do
3. It’s time/ high time that··· did/ were
2.和主句谓动比先后
与主谓动同时：did/ were
• As if/ though
先于主谓动：had done
晚于主谓动：would/ might do
3. 表示“为了···”
• • • • • Lest 以防 For fear that 为避免 In order that 为了 In case that 以防 So that 为了
Should/ would/ might do