That is后面加逗号再加一句话这个形式是什么意思，该怎么用？
it is/was ...that 是强调句,可以强调除了表语以外的其他句子成分，比如：
I met Li Ming at the railway station yesterday.
昨天我在火车站遇见了李明。
强调主语：It was I that (who) met Li Ming at the railway station yesterday.
昨天是我在火车站遇见了李明。
强调宾语：It was Li Ming that I met at the railway station yesterday.
我昨天在火车站遇见的是李明。
强调地点状语：It was at the railway station that I met Li Ming yesterday.
我昨天是在火车站遇见李明的。
强调时间状语：It was yesterday that I met Li Ming at the railway station.
我是昨天在火车站遇见李明的。
强调原因状语：It is because he is ill that he can’t come.
他不能来是因为他病了。
强调宾语补足语：It was chairman that they elected him.
他们选他为主席。
但是不能说" It is beautiful she is."因为"beautiful"在句中作表语的。可以用she is beautiful 以及 感叹句来强调。
how beatiful she is!
扩展资料
常见到的强调形式，共有以下七类：
1、用do\does\did + V可表强调
Some people do believe that nuclear power poses a threat to the world peace.
⒉、adv或adj可表强调：Never \ only\ Very
This is the very question that deserves careful analysis.
⒊、双重否定可表强调
Taking part-time jobs is never without drawbacks.
⒋、what引导的主从可表强调
What really matters is cooperation.
⒌、倒装可表强调(凡是倒装都可以表示强调)
Little do people take into account the seriousness of this problem.
⒍、比较状语从句可表强调
Nothing is more imperative than to learn from the past.
7、强调句型可表强调
It is \was +被强调部份+ that \ who +原句剩余部份
It is stability that destroys people’s ambition and barricades people’s steps.
参考资料来源：百度百科-强调句
I met Li Ming at the railway station yesterday.
强调主语：It was I that (who) met Li Ming at the railway station yesterday.
强调宾语：It was Li Ming that I met at the railway station yesterday.
强调地点状语：It was at the railway station that I met Li Ming yesterday.
强调时间状语：It was yesterday that I met Li Ming at the railway station.
强调原因状语 It is because he is ill that he can’t come.
强调宾语补足语 It was chairman that they elected him.
但是不能说 It is beautiful she is.因为beautiful在句中作表语的
可以用she is beautiful 以及 感叹句来强调
how beatiful she is!
一般一个强调句 就这么结束了 没有见过后面有逗号 再加别的成分的句子
帮你分析下 你的句子
动词的时态根据句子本来的时态而定
that is 换句话说；更确切地说
e.g. To an extent, that is the reason for the meeting.
在某种程度上，那就是召开这次会议的原因。
也可以用that is to say或in other words，意思相同
通常是用来解释说明前面提到的某个名词。
例如：1、 the growth rate of the number of consumers is positive, that is, R >=0.
2、 we find the reason why Tom did not come to the class, that is, he haven't weaken up yey.
I met Li Ming at the railway station yesterday.
强调主语：It was I that (who) met Li Ming at the railway station yesterday.
强调宾语：It was Li Ming that I met at the railway station yesterday.
强调地点状语：It was at the railway station that I met Li Ming yesterday.
强调时间状语：It was yesterday that I met Li Ming at the railway station.
强调原因状语 It is because he is ill that he can’t come.
强调宾语补足语 It was chairman that they elected him.
但是不能说 It is beautiful she is.因为beautiful在句中作表语的
可以用she is beautiful 以及 感叹句来强调
how beatiful she is!
一般一个强调句 就这么结束了 没有见过后面有逗号 再加别的成分的句子
帮你分析下 你的句子
动词的时态根据句子本来的时态而定
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对不起，我说的不是强调句。我想说的是That is,.....这个句式。之前在一些文章中见过，好像有解释说明的意思。我是想知道更确切的意思和用法
sxy0003真心为您解答~~
和我们的团队【小学生数学团】
~亲，如果你认可我的回答，请点击【采纳为满意回答】按钮~
~手机提问者在客户端右上角评价点【满意】即可。
~你的采纳是我前进的动力~~【如果我做错了欢迎大家指出我的错误，毕竟我不是万能的】
~如还有新的问题，请好评和采纳后重新另外起一题向我求助，答题不易，敬请谅解~~
O(∩_∩)O，记得好评和采纳，互相帮助
祝共同进步！
