第04讲 be动词表身份、年龄、状态等【暑假自学课】2023年新七年级英语暑假精品课（外研版）

第04讲 be动词 ( 知识导航 )说明身份、年龄、状态等 ( 考 点 考点 方向 考点 内容 动词be说明身份、年龄、状态等。 命题 聚焦 1.考查重点： be动词的用法及句式结构 2.常考题型： 选择题、完形填空 1.be如何变化 2. 含be的不同句式结构 3. be的用法 ) 间表 ( 知识复习 ) 【定义】 be动词，意思和用法很多，一般的意思是：是，此种用法，有多种变化形式，今天主要讲一般现在时的情况下，be动词用来说明身份、年龄或状态等。具体用法如下： 【考点01】be的变化 I am twelve years old. I am a student. I am very well. 这几个句子谈论的都是现在的状态，可以使用一般现在时。be的形式随着主语的不同而有所变化，变化如下： 【用法详情】 人称 be动词 I. am He/She/It is They/We/You are 口诀如下： be动词三朵花，am，is还有are. 我(I)用am, 你(you)用are，is连着他(he)，她(she)，它(it)。 单数名词用is，复数名词全用are。 【例子】— Here _______a pair of trousers for you. —Wow，thank you.（　　） A． is B． are C． has D． have 【例子】This is my T﹣shirt.His T-shirt__________yellow.（　　） A．is B．am C．are 【考点02】句式结构 【用法详情】 肯定式 否定式 疑问式 回答 I am Chinese. I am not Chinese. Am I Chinese? Are you Chinese? Yes, I am. No, I’m not. He/She is an English boy/girl. It is cheap. He/She is not (isn’t) an English boy/girl. It is not(isn’t) cheap. Is he/she an English boy/ girl? Is it cheap? Yes, he/she/it is. No, he/she/it isn’t. They are our friends. We are from America. You are a good boy. They are not(aren’t) our friends. We are not (aren’t) from America. You are not(aren’t) a good boy. Are they our friends? Are we from America? Are you a good boy? Yes, they are. No, they aren’t. Yes, we are. No, we aren’t. Yes, I am. No, I’m not. No, I am not. 注意其缩写形式，am not一般不缩写。 【例子】— ___________these her hats？ — No，they___________.（　　） A．Is；isn't B．Am；are C．Are；isn't D．Are；aren't 【例子】 ﹣How old__________your cousin brothers？ ﹣Jim is ten and Jack is four.（　　） A．are B．do C．is D．does 【考点03】 be动词的用法 【用法详情】 一般来说，在一般现在时的表达式中，be可以用于以下几种情况，一般说明身份、年龄、状态等。 1. be+形容词 I am very happy. He is very kind. The fruit is very fresh. 2. be+名词 Mr Wang is our English teacher. They are our friends. He is a very close boy. 3.be+介词短语 The book is on the desk. She is at home. Are they from America? 4.be+副词 Class is over! We are off now. Thanks for the meal. He is away to the office. 【例子】﹣I_____a student._____you a teacher？