This is the first time that I have...为什么要用have

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This is the first time that I have...为什么要用have
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This is the first time that I have...为什么要用have
This is the first time that I have...为什么要用have

This is the first time that I have...为什么要用have
这个属于固定用法,就像一些phrases 和collocation一样,讲不出具体原因的.
固定句型是：This is the ……time that sb.have/has done sth.
This was the ……time that sb.had done sth.
e.g.:This is the first time that our whole class have gone out together for a picnic.
He said that this was his third time that he had been to New York.

have+ 过去分词 完成时的动词形式
这个句型要求要用完成时态
如：
This is the first time that I have seen the film
这是我第一次看这部电影
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这是固定句型the first time sb have done sth

This is not the first Around this world ,the last is first. This is my first bag中first前要加the吗 this is ____lesson 1.we first 2.us first 3.the our first 4.our first this is the first lesson=this is________. this is the first time this was the first time 怎么用,有什么区别? This has been the first time与this is the first time有什么区别 This is the first man ___(walk)to the moon . lesson the is first this week of the . This is the first two sections of the book. This is the first lesson ( )the new term day,term,of,this,the,the,is,first,new 英语翻译Hi Sarah,Sorry this is so late,I have been out of the country(China) for the past few weeks in Dubai in the UAE in the middle east,so your sister was right plus we only had limited access to the web,so this is the first time I have had ti This is My first This is the first time that I ______(be)there NO,This is the first time I chat with you This is the first time that I_the Summer Palace.(visit) the day this it is first term of造句