這四個單詞都是指示代詞
單數(shù)形式：this（這個）,that（那個）
復(fù)數(shù)形式：these（這些）,those（那些）
this（these）和that（those）的區(qū)別
通常this（these）指離說話人較近的物品,that（those）指離說話人較遠(yuǎn)的物品．指示代詞既可以單獨(dú)使用,也可以與名詞連用．例如：
Xiaofeng,this is Xiaoyun,my friend.
These people are my friends.
That is Tom near the door.
Those people in the car are his brothers and sisters.