1、该句式 有四种情况。
(资料图片仅供参考)
2、that从句是定语从句2、that从句是主语从句3、that从句是同位语从句4that是强调句型中的虚词。
3、（既然说的是that从句，第四种情况可排除掉。
4、）It is the best film that I have ever seen。
5、（定语从句）It is a good idea that we go to the cinema。
6、（主语从句）It is the very news that our team has won。
7、（同位语从句）扩展资料：It is / was＋被强调的部分＋that(who)+剩余的部分。
8、如：It wasn’t until he came back that I went to bed。
9、直到他回来我才睡觉。
10、(一定要注意被强调句型谓语动词否定的转移，及形式)。
11、It was because he was ill that he didn’t come to school today.只因为他有病了今天没有来上学.（只能用because而不能用for,as 或since）It is I who am a student.我确实是个学生。
12、（句中am不能用are来代替）2、It is high time (time/ about time) (that) 主语＋should do / did+其它。
13、（注意从句中的谓语动词用的是虚拟语气） It is high time that we should go / went home。
14、我们该回家了。
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