Be 动词的用法口诀 我(I)用 am，你（you）用 are, is 连着他(he）、她（she)、它(it）。单数名词用 is，复数名词全用 are.变疑问，往前提，句末问号莫丢弃。变否定，更容易，be 后 not 莫忘记.疑问否定任你变，句首大写莫迟疑。1．我(I)用 am,你(you)用 are，is 连着他(he），她(she)，它（it）;这些是固定用法:I am a boy。(你不能说 I is a boy)You are a student.He is a boy.She is a girl。It is a cat.2．单数名词用 is，复数名词全用 are。(主语个数是一个时，谓语用单数 is,主语个数为 2 个或以上,谓语用复数are。)The book is over there.（一本书)The books are over there.（多本书）.They/We/You are students.3．变疑问，往前提，句末问号莫丢弃.（陈述句中谓语为 is，are,am 时,变疑问句只将其提前）如:It is a book。 变为：Is it a book?They are students。变为:Are they students?I am a student。 变为： Are you a student？(第一、第二人称要互换,be动词也相应变化。4．变否定,更容易，be 后 not 莫忘记.如：It is a book. 变为： It is not a book。(否定句)They are students.变为:They are not students.I am a student。 变为: I am not a stuent.5．疑问否定任你变，句首大写莫迟疑.如：It is a book. 变为：Is not it a book?（疑问否定句)They are students. 变为： Aren’t they students? （疑问否定句）不能缩略：1.this is,am not,these/those are 2。一般疑问句中，肯定回答时答语不能缩写.Yes,I am。一．用 be 动词适当的词填空。1. I ________ from Australia。2. She _______ a student。3.Jane and Tom _________ my friends。4。 My parents _______ very busy every day.5。Li Lei and I classmates.6.I ______ an English teacher now。7.Where _________ you from？8。You and he in the same class.9。—-What color these shoes？ -- They green。10。The light _________ green。11.My name _________ Li Dong. I _________ twelve。12._________ they your new friends？13. ——I ______ a boy. ______ you a boy? —-No, I _____ not.14。 The girl______ Jack’s sister。15。 The dog __...
