一般现在时中be的用法微课

1、一般现在时中一般现在时中be动词的使用动词的使用be动词动词的的种类种类be动词包括“am”, “is”, “are”三种形式。第一人称单数(I)配合am来用。句型解析析：I am+I am Lily.I am ten years old. I am a boy.be动词动词的的种类种类第二人称(You)配合are使用。句型解析：You are+You are my good friend. You are a good person.You are beautiful.be动词动词的的种类种类第三人称单数(He or She or It)配合is使用。句型解析：She(He, It) is

2、+She is a good girl.She is so cute.She is tender.be动词动词的的种类种类人人称复数称复数 (we /you/they)配合配合are使用。使用。句型解析：句型解析：We (You, They) are +We are in Class 5,Grade 7.They are my friends.You are good students.综合解析综合解析当使用be动词的时候，前面请先加上第几人称。be动词前面的人称，是不可随意替换的。例如：I am, You are, She is，并不会出现I is, You am, She are 这样的情

3、形。 Be动词的人称变化口诀：动词的人称变化口诀： I(我我)用用am； you(你你)用用are, is连着连着he(他他)，she(她她)，it(它它)； 单数名词用单数名词用is, 复数名词全用复数名词全用are。 rfrefmjm1、Heisateacher.be动词提句首动词提句首Isheateacher?2、Theyaretwins.Aretheytwins?Iamagoodstudent.练一练练一练AmIagoodstudent?rfrefmjm1.Heisateacher.Heisnotateacher.2.Theyaretwins.变否定，变否定，be动词后加动词后加not

4、Theyarenottwins.Iamagoodstudent.练一练练一练Iamnotagoodstudent.rfrefmjm Be的用法口诀 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 rfrefmjmIts She is Theyre We areShes I am Hes They areWere He isIm It is rfrefmjm改错：改错：1.I are very good.2.They is strong.3.He are old.4.She am slim.5.It are lovely. amareisi

5、s is把下列句子改为一般疑问句把下列句子改为一般疑问句2.We are from Beijing.3.Her father and her mother are teacher.Are you twenty-nine?Are you from Beijing?Are her father and her mother teacher?1.I am twenty-nine. 把下列句子改为否定句把下列句子改为否定句3.She is from Beijing.4.Her father and mother are teachers.She isnt from Beijing.1.I am twenty-nine.I am not twenty-