精选优质文档-倾情为你奉上七年级上册总复习一、be（am、is、are）的基本用法:我（I）用am，你（you）用are，is用于他（he）她（she）它（it），单数用is复数用are。否定句在be后加not,一般疑问句将be提前。回答：Yes,人称代词+ be./ No, 人称代词+be + not. 如：1) He is Mr. Chen. He is not Mr. Chen.- Is he Mr. Chen? - Yes, he is. / No, he isnt.2) I am a student. I am not a student.- Are you a student? - Yes, I am. / No, I am not.3) They are teachers. They are not teachers.- Are they teachers? - Yes, they are. / No, they arent.练习:用系动词be( am, is, ar
