强调句与定语从句的区别

强调句中that不充当成分、不能省略
定语从句中that充当成分、当充当的成分是宾语时、可以省略、
区别定语从句和强调句的方法：
把句子中的it is（was）和that去掉后、如果剩下的是一个完整的句子、有主谓宾、则这个句子为强调句、如果缺少成分、则是定语从句.
如：It was in the park that I saw Kate last week.中把It was和that去掉后、剩下成分是I saw Kate in the park last week.主谓宾都有,所以它是强调句.

强调句去掉标志词，句式成份仍完整；定语从句先行词在从句中要作为某成份

强调句固定句型it is....who/that把it is...that 去掉。还可以成为一句话。如it is i that love you.
定语从句是修饰前面限定词的。如 i like the gift that/which he send to me.