“is”用于主語是第三人稱單數(shù)情況下,如：he（他）,she（她）,this（這個(gè)）,who（誰）,it（它）,Li Ming(李明),Your mother（你的媽媽）,my name（我的名字）或the desk（這桌子）等.例句：
He is boy.
What is this?
My name is Danny.
Danny is playing ping-pong.
Is she a teacher?
are”常用于主語是第二人稱或第三人稱復(fù)數(shù)時(shí),如：you（你）,they（他們）,Li Ming and Danny（李明和丹尼）,your father and mother（你的父親和母親） 或these（這些）等.例句：
Are you hot?
You are hot.
They are my friends.
Li Ming and Danny are good friends.
What are these?
總上所述是第一個(gè)!