用am,is或are填空,然后總結(jié)其用法。
(1)That's my father and this ________ my mother.
(2)This is my cousin and that ________ my sister.
(3)-________she your sister?
。璝es, she ________.
(4)-And ________ he your brother?
-No. He's my friend.
(5)-________ Guo Peng your brother?
。璝es, he ________.
(6)I ________ his friend. I'm not his brother.
(7)-________ you Jack's brother?
。璑o, I'm not. I ________ his cousin.
(8)These ________ my grandparents.
(9)-________ this your aunt?
。璝es, it ________.
(10)These ________ my parents, those ________ my grandfather and grandmother.
(11)These are my brothers. They ________ Jeff and Jack.
(12)They aren't my sisters. They ________ my friends.
am用于第一人稱單數(shù)I之后;is用于第三人稱單數(shù)ge,she,it以及相當(dāng)于he,she或it;are用于第二人稱或所有人稱的復(fù)數(shù),表達(dá)“是”的意思?捎孟旅娴目谠E來幫助記憶:“我用am你用are,is用于他她它,復(fù)數(shù)全都要用are”。
I am…可以縮寫成I'm,he is可以縮寫成 he's,she is可以縮寫成加she's,it is可以縮寫成it's,而we are,you are,they are可分別編寫成we're,you're,they're。am,is,are的否定形式是在后面加not,如:am not,is not,are not。is not通常縮寫為isn't,而are not通?s寫為aren't。如:
(1)I'm Alice, I'm not Mary. She's Mary.
(2)This isn't my brother. He's my cousin.
(3)They're my brothers. They aren't my friends.