注意问题:
6 V6 ?5 I1 l, K4 _ C' ~1、If条件句中绝对不可出现“would”。5 v" N( W. P! V. h1 Z9 e" }
2、根据句中的时间状语,有时可能出现“混合虚拟”的情况,即主句可能是现在的情况,条件句也许是发生在过去的情况,但都是遵守上述句型。
' C' ]4 e3 ~- a* c( X0 D3、在条件句中如果出现were, had, should可省去if,将主语与这些词倒装,例如:% K6 k9 u. q% s
Had the doctor come last night, the boy would have saved.
1 z1 o* V' R8 U/ V2 h4 FWere I to go to the moon one day, I would see it with my own eyes.1 l, Y. v+ }/ H/ s/ h
Should it rain tomorrow, we would stay at home.9 Q3 Q: y% u- l
二、名词性虚拟语气:
5 {# m) Y; x% I+ Z& D在表示命令、建议要求、惊叹时的名词性从句中需用虚拟语气,基本句型:主语+(should)+动词原形,如:Mother insisted that John go to bed at 9 o’clock.(宾语从句)
$ x5 l* `* p! [' l# X: [5 G' RWe suggested that the meeting should not be held.7 F! r+ R5 ]" X
It was required that the crops should be harvested at once.(主语从句)7 y) P3 Z* U, D& s
The suggestion that he be invited was rejected.(同位语从句)
3 K9 T* z m/ iThat is their demand that their wages be increased.(表语从句)2 N* z) _5 t: t; W# K5 [7 z6 u; p( @
注意:在这种句子中绝不出现“would”“must”“could”等。 |