七年级上册练习题一、be（am、is、are）的基本用法,区别及其引导的一般疑问句和回答。am接在I之后，is放在单数的名词或代词之后，are放在复数的名词或代词之后，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 isntt.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：（一）用连系动词be( am, is, are)的正确形式填空。1. _
