作业帮关于as if的虚拟语气该怎么用?
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/10/06 12:37:31
关于as if的虚拟语气该怎么用?
关键是时态问题,我有点乱
关键是时态问题,我有点乱
as if 的用法比较复杂一些：
1. as if 引导的从句经常用虚拟语气.从上面的句子可以看出,主句都是现在时态,as if从句都是过去时态,这说明as if 从句表示的意思与事实不符或者相反.例如：
He walks as if he were drunk.
My neighbor treats the child as if he were their own son.
2. 但是,如果句子表达的意思与事实并没有什么不符,那么就不使用虚拟语气.例如：
He heard a noise, as if someone was breathing.
It looks as if it is going to rain.
3. as if 经常和look, seem 连用.例如：
She looks as if she is (were) ill, because her face is pale.
It seemed as if there was a fight between the two sides.
4. as if 从句中的主语如果和主句主语相同,而且谓语动词有be, 则从句主语和谓语经常省略.例如：
She stood at the gate as if (she was) waiting for someone.
The teacher shouted at the boy as if (he was) angry.
再问： 什么情况下用had gone呢？能解释下吗？谢谢。
再答： 从句表示与过去事实相反，谓语动词用“had＋过去分词”。如： He talks about Rome as if he had been there before． 他说起罗马来好像他以前去过罗马似的。 The girl listened as if she had been turned to stone． 那女孩倾听着，一动也不动，像已经变成了石头似的。
1. as if 引导的从句经常用虚拟语气.从上面的句子可以看出,主句都是现在时态,as if从句都是过去时态,这说明as if 从句表示的意思与事实不符或者相反.例如：
He walks as if he were drunk.
My neighbor treats the child as if he were their own son.
2. 但是,如果句子表达的意思与事实并没有什么不符,那么就不使用虚拟语气.例如：
He heard a noise, as if someone was breathing.
It looks as if it is going to rain.
3. as if 经常和look, seem 连用.例如：
She looks as if she is (were) ill, because her face is pale.
It seemed as if there was a fight between the two sides.
4. as if 从句中的主语如果和主句主语相同,而且谓语动词有be, 则从句主语和谓语经常省略.例如：
She stood at the gate as if (she was) waiting for someone.
The teacher shouted at the boy as if (he was) angry.
再问： 什么情况下用had gone呢？能解释下吗？谢谢。
再答： 从句表示与过去事实相反，谓语动词用“had＋过去分词”。如： He talks about Rome as if he had been there before． 他说起罗马来好像他以前去过罗马似的。 The girl listened as if she had been turned to stone． 那女孩倾听着，一动也不动，像已经变成了石头似的。