? 第四天课程安排： ? 上午： ? 1.虚拟语气 ? 2. 作业评讲 ? 下午： ? 1. 单词讲解 （198-263) ? 2. 听力练习
虚拟语气(subjunctive mood),表示说的话不是事实或者 是不可能发生的情况，而是一种愿望、建议或与事实相反 的假设等。
should do 表虚拟
(1 ) If I were a boy , I would have Adam’s Apple.
If I went around the moon, I would pick the moon off. 对现在情况的虚拟 ： If +主语+were/did +…, 主语+would/should/might/could +do
? (2) We said if we had bought a house, we would have sent it to our parents. ? 对过去情况的虚拟 ：
If +主语+had done +…, 主语 +would/should/might/could + have done
1、if 引导的虚拟条件状语从句 (3）If it were to warm up tomorrow, we would climb up the mountain. ? If it warmed up tomorrow, we would climb up the mountain. ? If it should warm up tomorrow, we would climb up the mountain. ? 对将来情况的虚拟 ： ? If +主语+were to do/ should do/did +…, ? 主语+would/should/might/could +do +…
与现在事实相反 的假设 与过去事实相反 的假设
If +S + were/did+…
S+ would/should/might/ could+ do +… S+ would/should/might/ could+ have done +… S+ would/should/might/ could+ do +…
If +S + had done+...
If +S + did/should do/were to do +…
? 1、 省略if 情况 ? 2、混合虚拟语气
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2、只虚拟从句的时态倒退 I wish I had one million. I wish I had gone to the moon long long ago. We wish we would pass the exam. 类似词： wish 希望，祝愿 would rather=would sooner 宁愿 as if =as though 似乎，好像 If only 要是、、、就好了 I would rather you had not come.
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without 如果没有… but for 要不是… otherwise 如果没有…；否则的话 Without your help, we would have fallen in trouble. ? He must failed to receive my letter, otherwise he would have replied me.
二、从句中用should do 表虚拟的情况
? 1.表命令，建议，要求，请求的词引导的名词性从句 ，that + (should) do
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表命令： order v./ n. ； ordered adj. command v./ n.; commanded adj. 表建议: advise v.; advice n.; advisable adj. suggest v. ; suggestion n. ; suggestive adj. Propose v.; proposal n. ; propositional adj.
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表要求； require v.; requirement n.; required adj. request v./ n.; requested adj. insist v./ n. 坚决要求；insistent adj. 表请求： demand v./