_______ Millie was watching TV, Eddie was sleeping.A.WhileB.WhenC.AsD.Since
题型:不详难度:来源:
_______ Millie was watching TV, Eddie was sleeping. |
答案
A |
解析
此题重点考查when as和while引导的时间状语的区别。都表示主、从句的动作或状态同时发生,但三者意义不尽相同。as和when引导的从句既可表示一点时间,也可表示一段时间,从句中的谓语动词既可以是持续性动词,也可以为短暂性动词,经常可以互换使用;while引导的从句通常表示一段时间,从句中宜用持续性动词作谓语。当从句中的谓语动词为持续性动词时,这三者可以通用。 如果从句和主句要表示一个人的两个动作交替进行或同时完成时,则多用as,可译为“一边......,一边......”。(若表示两个短促动作几乎同时发生时,用as的场合多于when.) 当主从句之间表示转折或对比关系时,多用while, 不用as或when。 如果表示从句的动作在主句的动作“之前”或“之后”发生时,多用when(=after), 不用as或 while。此外,when还含有“at that moment”的意思(=" and" then),引起的句子不能放在句首,也不能用as, while来替换。 |
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