Unit 2 Section A Grammar Focus-3c课件2023-2024学年人教版七年级英语上册

Unit 2 This is my sister Grammar Focus Look and say This is an apple. That is an apple, too. Those are tomatoes. those These are bananas. Who is he/she? He/She is .. Who are they? They are. This is.. That is... These are... Those are.. my family photo This is my friend Jane. That's my grandfather. These are my brothers. Those are my parents. 指示代词： this、that、these、those Grammar Focus 近处 单数 复数 介绍 人物 远处 this 指代距离说话人较近的人或物，复数形式为these。 that 指代距离说话人较远的人或物，复数形式为those。 it 指性别不明的婴儿、身份不明的人或是只闻其声未见其 人，或代替前文中所提到的事物。 指示代词 ：用来指示或标识人或事物的代词。 指示代词、定冠词、人称代词一样，都具有指定的含义，用来起指示 作用，或用来代替前面已提到过的名词。 例： This is an apple tree.这是一棵苹果树。 That is an orange tree. 那是一棵桔子树。 Th e pen doesn't work.It' sLily's. 这支钢笔坏了。它是莉莉的。 注意： 在回答this 或that 作主语的疑问句时，通常用人称代词it 代替 this/that; 在回答these 或those 作主语的疑问句时，通常用they 代替 these/those。 例句： ①-Is this a notebook? -Yes, it is. ②-What's that ? -It 's a key. ③-Are these/those your apples? -Yes, they are. Who's she? She's my sister. Who's he? He's my brother Who're they? They're my grandparents. who引导的特殊疑问句： Who+be 动词+人称代词/人物名称 Grammar Focus 辨别 人物 who're = who are who's = who is they're = they are = that is that's 等连用时，为了简便常用缩写形式。 who are who're I am I'm he is he's what is what's 与be 动词am、is、are who is who's they are they're she is she's it is it's 不能缩写的情况： this is; these are; those are; am not; 一般疑问句的肯定回答中 that's是that is 的缩写形式。当人称代词、指示代词及疑问词 句子单数变复数，5变化： ①指示代词变 (this 变these,that 变those) ②主格人称代词变 (I 变we,you 变 you, she/he/it变they) ③单数名词变 ④be动词变 (is 变are) ⑤不定冠词a/an 去掉 this that it she he parent a friend these those they parents → friends that's = that is who're = who are who's = who is they're = they are sister sisters brother → brothers singular plural 1.This