3、s.1)指示代词分单数(this / that)和复数(these / those)两种形式,既可作限定词又可做代词,例如: 单数 复数 限定词:This girl is Mary. Those men are my teachers. 代 词:This is Mary. Those are my teachers. 2)指示代词相关句子的否定和疑问形式否定形式:直接在be动词后加not疑问句形式:把be动词提于句首回答形式:this/that
5、others.(aren’t=arenot)疑问:Aretheseyourbrothers?回答:Yes,theyare./No,theyaren’t.Thosearemyparents.否定:Thosearen’tmyparents.(aren’t=arenot)疑问:Arethoseyourparents?回答:Yes,theyare./No,theyaren’t.3)指示代词的句法功能 指示代词主要有四个:this, that, these 和 those。它们在句中可作主语、宾语、表语、定语等。 This
6、 is my book.(主语) I want that.(宾语) My book is that.(表语) I like that dress.(定语) 注意: 1. 为避免重复,可用 that 和 those 代替前面提到的名词。 The playground of my school is bigger than that of your school. (That=the playground) My seat is next to that of the headmaster(that=headmast
7、er’s seat) 2. 用来回指上文提到的事情时,可用this 或 that,但是若要指下文叙述的事情,通常要用 this。如: ——She is a beautiful girl. ——Who said that? I want to know this: Is she beautiful? 我想知道这一点:她美吗? 3. 在打电话时,通常用 this 指自己,用that指对方: Hello. This is Jim. Is that John? 喂,我是吉姆,你是约翰吗? 1.掌握四个指示代词的
8、区别和用法。2.如何熟练的去把含有指示代词的陈述句变成一般疑问句或特殊疑问句并进行回答。1.--Look,what’s?--It’saneraser.A. this B. these C. that D. those答案:A解析:题意为“看,这是什么?”,故选A。相对于近的物体用this。2.Areyourwatchesoverthere?A.thisB.thatC