【精品】七年级英语上册 unit 1 this is me grammar课件 （新版牛津版精品ppt课件.ppt
七年级英语上册 Unit 1 This is me Grammar课件（新版）牛津版I am in Class1 Grade 7.He is tall.We are in the same class.一般现在时一般现在时 表示现在存在的状态。表示现在存在的状态。一一.当我们谈论以下几种情况时当我们谈论以下几种情况时,用用一般现在时：一般现在时：1.表示现在存在的状态表示现在存在的状态;2.表示经常性、习惯性的动作表示经常性、习惯性的动作;3.表示客观事实或普遍真理。表示客观事实或普遍真理。二二.“be”动词的一般现在时形式有动词的一般现在时形式有三种：三种：am,is,are。其用法如下：其用法如下：一般现在时一般现在时be动词在动词在 肯定句中的用法肯定句中的用法I am 或或 Imhappy.You/We/They are或或 Youre/Were/TheyreHe/She/It is 或或 Hes/Shes/Its用法口诀：用法口诀：“我我(I)”用用am,“你你(you)”用用are,“is用于用于“他他(he)”、“她她(she)”、“它它(it)”,复数人称都用复数人称都用“are”。一般现在时一般现在时be动词的否定句动词的否定句I am not或或 Im nothappy.You/We/They are not或或 You/We/They arentHe/She/It is not 或或 He/She/It isnt 一般现在时一般现在时be动词的动词的一般疑问句及其肯定回答一般疑问句及其肯定回答AmIhappy?Yes,Iam.Areyou/we/theyyou/we/theyare.Ishe/she/ithe/she/itis.一般疑问句的否定回答一般疑问句的否定回答No,I am not或或 Im not.you/we/they are not或或arent.he/she/it is not 或或 isnt.缩写形式小结：缩写形式小结：Im=I amyoure/were/theyre=you/we/they are hes/shes/its=he/she/it is isnt=is notarent=are not例句例句:(一一)一般疑问句及其肯定回答和否定一般疑问句及其肯定回答和否定 回答回答 1.Am I the first?Yes,you are.No,you arent.2.Are you good at swimming?Yes,I am./Yes,we are.No,Im not./No,we arent.3.Is Simon tall?Yes,he is.No,he isnt.(二二)be 动词一般现在时的否定句动词一般现在时的否定句:4.I am not a student.5.You arent good at swimming.6.Simon isnt tall.巩固练习巩固练习将下列句子变成将下列句子变成(1)一般疑问句并作肯定和否定回答一般疑问句并作肯定和否定回答;(2)变成否定句。变成否定句。We are good friends.(1)Are you good friends?Yes,we are./No,we arent.(2)We arent good friends.Simon and Sandy are classmates.(1)Are Simon and Sandy classmates?Yes,they are./No,they arent.(2)Simon and Sandy arent classmates.Her hair is long.(1)Is her hair long?Yes,it is./No,it isnt.(2)Her hair isnt long.将下列句子改为一般疑问句，并作否定回答。将下列句子改为一般疑问句，并作否定回答。1.I am a happy girl.2.My father is a doctor.3.Our books are new.4.Miss King is my teacher.5.The boys are playing football.6.His nose is big.
