UC知道有2道选择题
来源：百度知道 编辑：UC知道 时间：2024/06/05 17:23:32
请选择并讲讲为什么？
1. ___ I got home ___ that I had the wrong umbrella.
A. Not until; did I notice B. No sooner; than I noticed
C. Scarcely; did I notice D. Only when; I noticed
2. ___ your help, they'd never have been able to overcome the difficulties.
A. Were it not B. Had it not been for
1. ___ I got home ___ that I had the wrong umbrella.
A. Not until; did I notice B. No sooner; than I noticed
C. Scarcely; did I notice D. Only when; I noticed
2. ___ your help, they'd never have been able to overcome the difficulties.
A. Were it not B. Had it not been for
1、A
当主句是否定句时，它引出的意思是"直到（某时）（某动作）才（发生）" ，这时候常会出现"not until …"的结构，如果将 "not until …"的结构放在句首，那么主句要写成倒装句。如：
Not until we pointed out their fault to them did they realize it .
直到我们向他们指出了他们的错误，他们才意识到。
2、B
省略if的虚拟语气和过去的事实相反
1. a
2. b
1. A 注意倒装
2. B 省略if的虚拟语气与过去事实相反