2、条件句。如:Ifyouhadcomeyesterday,youwouldhavemetthatfamousprofessor.如果你昨天来,你就会见到那位著名的教授了。(隐含的事实是:你昨天没来,也没见到那位著名教授)。虚拟语气的基本形式和用法在含有虚拟条件句的复合句中,主从句的谓语都要用虚拟语气。1. 含有条件状语从句的复合句 wish(would rather)+宾语从句 suggest(…)+宾语从句2. 主 语从句 It is + adj./p.p/n.+ that+ S+ (should)
3、 +do表 语 从句S+is that +s + (should) +do同位语从句 S+that +s +(should) +do3. 定语从句 It is (high) time that + S + did 用过去式表现在情况 1. 时态后退型 用过去完成式表过去 两种形式 用过去将来表将来 2. should+动词原形型
4、 内 容 详 述I. 含有条件状语从句的复合句(以do为例;S=主语)时 间 条件状语从句 主 句与现在事实相反的假设 If +S+did… S+would/should/could/might+do…与过去事实相反的假设 If +S+had done… S+would/should/could/might+have done…与将来事实相反的假设 did…If+S should do
5、 were to do S+would/should/could/might+do…注意事项:1.倒装句。如果条件句中含有功能词had,should,were时,可以省去If,把功能词提前,构成倒装句。2.错综条件句。若条件句和主句动作不存在同一个时间,则谓语形式应根据具体情况而定。3.If there weren't/had not been +…=without…4.If it were not for…/ If it hadn't been for…= but for…5.otherwise
6、+虚拟语气的句子6.虚拟语气的句子,but+ 陈述事实的句子II. 虚拟语气用在宾语从句中 sb. did …(希望现在用过去式) 1. wish+that sb. had done…(希望过去用过去完成式)sb. would/should do(希望将来用过去将来)2. would rather后的从句要用虚拟语气。时 间 从 句虚拟现在 were, did (动词一般过去式)虚拟过去 had done虚拟将来 did (动词一般过去式)例:I would rather
7、I hadn’t said such unkind things to you. (虚拟过去)I'd rather you came here for the answer tomorrow morning. (虚拟将来)I’d rather you posted the letter right away. (虚拟现在) 3. suggest+(that)S+should+do… 表示愿望、建议、请求等主观意向的动词之后的宾语从句,谓语用should +动词原形,should常常省略。这类词有:
8、decide,demand,desire,insist,order,propose,suggest,recommend,requested, require等。 注意:1. suggest 当“建议”讲时,其宾语从句用虚拟语气;当“暗示、表明”时,用陈述语气 2. insist 当坚持“看法或建议”时,宾语从句用虚拟语气;当坚持“某个事实”时,用陈述语气。 判断改错:(错) Your pale face suggests that you(