2017_2018学年七年级英语上册Unit2Thisismysister语法专项突破课件.pptx

语法专项突破,.指示代词this,that,these,those 表示“这个;这些” “那个;那些” 等指示概念的词,叫指示代词。this,that,these,those是英语中四个最基本、最常用的指示代词。前两个常用来指代名词单数,后两个常用来指代名词复数。 1.this,that,these,those基本用法 语境领悟 Is this/that your dog?这/那是你的狗吗? No,it isnt.不,不是。/Yes,it is.是的,它是。 Are these/those your brothers? 这/那些是你的哥哥们吗? Yes,they are. 是的,他们是。,自主归纳 研读以上例句可知:“Is this/that your.?”用于询问“这/那是你的吗?”是一般疑问句,它的肯定回答为: , ;否定回答是“No,it isnt.”;“Are these/those your.?”用于询问“这/那些是你的吗?”也是一般疑问句,它的肯定答语为“Yes,they are.”;否定答语为“ , .”。指示代词作主语并用于问句中时,回答一般用 代替this和that,they代替these和those。,Yes,they are.作简单答语时不可以缩写成“Yes,theyre.”。,Yes,No,it is,they arent,it,2.给某人介绍第三者 语境领悟 Mom,this is Danny.妈妈,这是丹尼。 Tom,this is my friend Mary. 汤姆,这是我的朋友玛丽。 自主归纳 研读以上例句可知,把某人介绍给第三者时,常用“ .”句型,不用“That is.”或“She/He is.”。 拓展引申 打电话向对方介绍自己时,要用“This is.”;询问对方是谁时,用“Whos that?”或“Is that.?”。,This is,学以致用 用this,that,it,these,those,they填空 (1)Is your pen? No, isnt. is her pen. (2)What are ? are books. (3)What are over there? They are oranges.,this/that,it,It,these/those,They,those,.人称代词 人称代词分为主格(I,you,he,she,it,we,you,they)和宾格(me,you,him,her,it,us,you,them)两种形式,主格作主语,宾格作宾语或表语。 1.人称代词的格与数,me,us,you,you,him,her,it,them,2.be配对人称代词 语境领悟 I am your friend.我是你的朋友。 You are my friend.你是我的朋友。 She/He is my teacher.她/他是我的老师。 It is a book.它是一本书。 They/We/You are from London. 他们/我们/你们来自伦敦。 自主归纳 研读以上例句可知,人称代词与be的搭配情况如下:,am,are,is,are,学以致用 用am,is,are填空 (4)We good friends. (5)I a student. (6)He from Shanghai.,are,am,is,.用be动词的适当形式填空 1.They from Tianjin. 2.She a beautiful girl. 3.She and I students. 4.We their friends. 5.He a good boy.,are,is,are,are,is,.选词填空,I me him he they them my,1. am a middle school student. 2. are my good friends. 3. is a clever boy. 4.He is in hospital.You should (应该)go to see . 5.They are over there.You can go to play