Simple Present tense of “be”一般现在时中 be 动词的用法 Unit 1 Grammar ( 语法 )学习目标：1. 理解并掌握 be 动词在一般现在时中的用法2. 掌握一般现在时的肯定句、否定句、疑问句的构成与基本用法Be Be 动词动词be 动词也叫系动词，表示“是”，具体体现形式有am, is,are,was,were,will be 等一般现在时isareambe 动词一般现在时能与不同的主语 (subjects) 连用1. am, is, are 与人称代词连用人称代词I weyou he she ittheyamII am “ 我是” 我是一个女生。I am a girl. I am tall. 我是高的。=I’m=I’m a girl.=I’m tall.ishesheitHe is a boy. She is a girl. It is a dog. 他是一个男生。她是一个女生。它是一只小狗。He is=He’sShe is=She’sIt is=It’sHe’sShe’sIt’sareyoutheyYou are a boy. You are boys.weWe are friends. 你是一个男生。你们是男生。They are classmates. 他们是同班同学。我们是朋友。You’reWe’reThey’reYou are= You’reWe are= We’reThey are= They’re用“ be” 的正确形式填空1.I ____ a tall girl.2. You___ Lily, right?3.She ____ my twin sister.4.We ____ good friends.5.You ____ all good students.6.They ____ Sandy’s parents. amareis are are are2. 与普通名词连用（ 1 ）单数名词 + is （ 2 ）复数名词 + are The students ______very happy.areThe girl ________tall and slim.isbebe 动词动词的的否定句否定句主语 + be + not am is are not = am not isn’t aren’t 将下列句子改为否定句1.This is a box. 2.I’m a student. 3.They are my classmates.This a box.is not/ isn’tI ________a student.They my classmates.are not/ aren’tam not1. These are my books. __________________2. She is Sandy’s sister.__________________3. We are in the classroom.____________________4. They are from the UK.___________________5. You are in Class6, Grade7.____________________These are not/ aren’t my books.She is not/ isn’t Sandy’s sister.We are not/ aren’t in the classroom.They are not/ aren’t from the UK.You are not/aren’t...
