It happened to be very cold on the morning of our sports mee

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/06/13 08:16:33

It happened to be very cold on the morning of our sports meet这句中的it happened to be very cold的句型哪位大侠能给讲解下吗,这里面的to be的用法,在这个句子中起到什么样的作用呢?
我晕了…………

happen to be是碰巧,刚好的意思,固定用法,本句意思：我们开运动会那天早上天气刚好特别冷.
再问：那整个这句话It happened to be very cold on the morning of our sports meet的句子主语是什么？谓语就是be very cold吗？
再答： it 在这里是形式主语，真正的主语是 our sports meet运动会，on the morning 是时间状语，谓语是happen
再问：很多人都说这句话的结构是主系表…… 如果这句话换成It is very cold on the morning of our sports meet呢？能再深层讲解一下吗？太多答案了，我晕了……
再答： It is very cold on the morning of our sports meet换成这样也可以，结构没问题，只需把is 换成was 即可。It is very cold 是典型的主系表结构，但在这里有 on the morning of our sports meet，所以it是形式主语，
再问：也就是说on the morning of our sports meet不是修饰it的，而it是代替on the morning of our sports meet的？那么谓语为什么是happen而不是be呢？就因为it 是形式主语吗？It happened to be very cold on the morning of our sports meet把IT去掉，这句话应该怎么改呢
再答：呵呵，因为系动词不能做谓语啊！所以说主系表，不是主谓宾。只有实意动词可以做谓语，这里happen 就是一个实意动词。而cold 是形容词，只能跟在系动词后面，所以用了be ,这句话去掉所有修饰，最简化可以说成：morning happened to be cold ，但为了说明详细内容，只好借助it这个形式主语，是什么morning呢？是 morning of our sports meet，所以整句完整说法就是It happened to be very cold on the morning of our sports meet

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