This’ 和 ‘that’
用 this 和 that 指示人和物。用 this 指代离你近的人或物，用 that 指代离你远的人或物。
陈述句 否定句 This is my desk. This is not your desk. That is your desk. That is not my desk. This is John. That is not Mary.用 this 介绍人认识。
John, this is Pamela. Pamela, this is John. John， 这位是 Pamela。Pamela，这位是 John。缩写：this is 没有缩写形式。请使用 that’s 作为 that is 的缩写形式。
That's not Jim. That's Bill. 那不是 Jim，那是 Bill。把 is 移到句首，构成 this is 和 that is* 的疑问句。你可以用简短的回答来回应。
疑问句 简短回答 Is this your computer? No, it isn't. Is that your computer? Yes, it is. Is that Bill? Yes, it is.