It is not long before they are so accustomed to swimming 这里的it is是什么用法
答案:3 悬赏:10
解决时间 2021-02-18 03:51
- 提问者网友:一人心
- 2021-02-17 19:51
It is not long before they are so accustomed to swimming 这里的it is是什么用法
最佳答案
- 二级知识专家网友:高冷不撩人
- 2021-02-17 20:14
代词 it 有四种用法:
1、人称代词:用于指代已经提到过的事物,或者无生命物体、性别不详或不知的有生命物体(包括人和动物)。如:
* Please polish the table until it shone. 请把桌子擦出光亮。(指代table)
* We couldn't find out who it was. 我们查不出是谁。(指代不知的人)
* Who is it outside? 外面是谁呀?(指代性别不详的人)
2、非人称代词:用于指代时间、天气、距离、情况以及各种度量衡。如:
* It is 5 o’clock. (指代时间)
* It is fine today. (指代天气)
* It is not far from here. (指代距离)
3、先行代词:用作形式主语或宾语,指代后置主语、不定式、动名词或从句。如:
* It is easy to do it. (指代不定式to do it)
* It is helpful going with the times. 与时俱进是有益的。(指代动名词going with the times)
* It is important that we get there in time. 我们及时到达那里是重要的。(指代动从句that we get there in time)
4、强调代词:用在强调句型“it is + 强调部分 + that …”如:
* It is him that we will pay a visit to. (强调宾语him)
* It was yesterday we paid a visit to him. (强调时间状语yesterday)
显而易见,It is not long before they are so accustomed to swimming(过了不久他们就习惯了游泳)中的 it 是指代时间的非人称代词。直译就是“时间没过多久,他们就习惯了游泳”。 其结构是——
主语:It (指代时间)
系动词:is
表语:not long
时间状语从句:before they are so accustomed to swimming
1、人称代词:用于指代已经提到过的事物,或者无生命物体、性别不详或不知的有生命物体(包括人和动物)。如:
* Please polish the table until it shone. 请把桌子擦出光亮。(指代table)
* We couldn't find out who it was. 我们查不出是谁。(指代不知的人)
* Who is it outside? 外面是谁呀?(指代性别不详的人)
2、非人称代词:用于指代时间、天气、距离、情况以及各种度量衡。如:
* It is 5 o’clock. (指代时间)
* It is fine today. (指代天气)
* It is not far from here. (指代距离)
3、先行代词:用作形式主语或宾语,指代后置主语、不定式、动名词或从句。如:
* It is easy to do it. (指代不定式to do it)
* It is helpful going with the times. 与时俱进是有益的。(指代动名词going with the times)
* It is important that we get there in time. 我们及时到达那里是重要的。(指代动从句that we get there in time)
4、强调代词:用在强调句型“it is + 强调部分 + that …”如:
* It is him that we will pay a visit to. (强调宾语him)
* It was yesterday we paid a visit to him. (强调时间状语yesterday)
显而易见,It is not long before they are so accustomed to swimming(过了不久他们就习惯了游泳)中的 it 是指代时间的非人称代词。直译就是“时间没过多久,他们就习惯了游泳”。 其结构是——
主语:It (指代时间)
系动词:is
表语:not long
时间状语从句:before they are so accustomed to swimming
全部回答
- 1楼网友:没感情的陌生人
- 2021-02-17 20:56
这是一个句型“不久就。。。”it指代时间
- 2楼网友:旧事诱惑
- 2021-02-17 20:50
系动词+表语(形容词)组成系表结构。
我要举报
如以上问答内容为低俗、色情、不良、暴力、侵权、涉及违法等信息,可以点下面链接进行举报!
大家都在看
推荐资讯