怎样判断判断主语从句和强调句.都是it is...that...

怎样判断判断主语从句和强调句.都是it is...that...

题目
怎样判断判断主语从句和强调句.都是it is...that...
答案
It is(或was)…that …句型中若去掉it is (或was)和that不影响句意,则此句式为强调句;
若去掉it is(或was)和that后句意不完整,则此句为主语从句.
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