在英语中，强调代词用于强调或突出一个人或物。它们可以用来代替名词，并在句子中引起注意。下面是一些常见的强调代词：
- It: 用于强调事物或情况，如“It was John who ate all the pizza.”
- This/That: 用于强调单数名词，如“This is the book that I was talking about.”
- These/Those: 用于强调复数名词，如“Those are the shoes that I want to buy.”
强调代词的位置通常在句子中很灵活。它们可以出现在句首、句中或句尾。例如：
- It was John who ate all the pizza.
- John ate it all.
- This is the book that I was talking about.
- I was talking about this book.
- Those are the shoes that I want to buy.
- I want to buy those shoes.
需要注意的是，在强调代词后面的动词形式通常与代词所指的人或物一致。例如：
- He is the one who broke the vase. -> It was he who broke the vase.
- She bought the dress. -> It was she who bought the dress.
在英语中，使用强调代词可以让句子更加生动有力，更加突出。希望大家能够灵活运用强调代词，让自己的英语表达更加地道自然。
