与将来事实相反的虚拟语气
请看下面的题目:
If we __________ 200 years old,we __________ everything.
A.
were to be,could change
B.
had been,changed http://yingyu.chazidian.com
C.
were,would have changed
D.
should be,changed
此题应选A。该题考查与将来事实相反的虚拟语气,此时的主句谓语通常用would(should,could,might)+动词原形,而从句谓语可能有以下几种情况:
1.
从句谓语用过去式:
If your father knew this,he would be angry. 要是你父亲知道了,他会生气的。
If it rained tomorrow,the sports meet would beput off. 要是明天下雨,运动会就推迟。
2.
从句谓语用should+动词原形(通常指可能性极小的事情,一般译为“万一”):
If it should rain,the crops would be saved. 要是有雨,这庄稼还有救。
此类句型的主句谓语有时可以用祈使句甚至将来时态:
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