作业帮为何一篇文章中现在时与过去时可以混用？
来源：学生作业帮 编辑：拍题作业网作业帮 分类：综合作业 时间：2024/05/22 10:09:26
为何一篇文章中现在时与过去时可以混用？
新概念2，59课in or out中，通篇使用了过去时，不过中间有几句用的是现在时，这是为什么？
附原文：
Our dog, Rex, used to sit outside our front gate and dark. Every time he wanted to come into the garden he would bark until someone opened the gate. As the neighbours complained of the noise, my husband spent weeks training him to press his paw on the latch to let himself in. Rex soon became an expert at opening the gate. However, when I was going out shopping last week, I noticed him in the garden near the gate. This time he was barking so that someone would let him out! Since then, he has developed another bad habit. As soon as he opens the gate from the outside, he comes into the garden and waits until the gate shuts. Then he sits and barks until someone lets him out. After this he immediately lets himself in and begins barking again. Yesterday my husband removed the gate and Rex got so annoyed we have not seen him since.
针对3楼回答： 我的理解，As soon as he opens the gate from the outside, he comes into the garden and waits until the gate shuts. 也是过去发生的，现在狗已经跑掉了，那么这句不是应该用过去时吗？
新概念2，59课in or out中，通篇使用了过去时，不过中间有几句用的是现在时，这是为什么？
附原文：
Our dog, Rex, used to sit outside our front gate and dark. Every time he wanted to come into the garden he would bark until someone opened the gate. As the neighbours complained of the noise, my husband spent weeks training him to press his paw on the latch to let himself in. Rex soon became an expert at opening the gate. However, when I was going out shopping last week, I noticed him in the garden near the gate. This time he was barking so that someone would let him out! Since then, he has developed another bad habit. As soon as he opens the gate from the outside, he comes into the garden and waits until the gate shuts. Then he sits and barks until someone lets him out. After this he immediately lets himself in and begins barking again. Yesterday my husband removed the gate and Rex got so annoyed we have not seen him since.
针对3楼回答： 我的理解，As soon as he opens the gate from the outside, he comes into the garden and waits until the gate shuts. 也是过去发生的，现在狗已经跑掉了，那么这句不是应该用过去时吗？
1、前半截写的是这只狗过去如何如何，所以用过去时。 2、后半截写的是这只狗现在已经养成了习惯如何如何了，所以用一般现在时。 一般现在时除了表示真理、事实外，还表示习惯性动作以及常做的事。比如， I often go shopping in the evening. He never goes skating with me. 上面已经交待了，‘从那时起，它又养成了一个坏习惯......’Since then, he has developed another bad habit... 所以，‘习惯’就是：as soon as he opens ... he sits ...
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