Unit 3 In my schoolbag 语法易错+巩固练习（导学案）新三年级英语暑假自学课（人教大同版三起·新教材）

三年级上册暑假自学课（人教大同三起） Unit 3 In my schoolbag 语法易错+巩固练习 语法易错点 01 · 语法点拨 1.核心语法：a / an 的用法 1. a 和 an 都表示“一个”，用来修饰单数可数名词。 · a 用在辅音音素开头的单词前：a book, a schoolbag, a pencil · an 用在元音音素开头的单词前：an eraser 2. 常见文具类词汇 a book 一本书 a notebook 一本笔记本 a schoolbag 一个书包 a pencil case 一个铅笔盒 a pencil 一支铅笔 a ruler 一把尺子 an eraser 一块橡皮 a pen 一支钢笔 [口诀]名词单数要用a/an，元音音素开头就用an，其余情况都用a。 知识演练01 名词单数要用a/an，元音开头就用an，其余情况都用a。 1. This is ______ book. 2. That is ______ eraser. 3. I have ______ pencil. 4. It's ______ ruler. 5. Look! ______ notebook is new. 6. This is ______ pencil case. 7. I see ______ pen on the desk. 8. It's ______ big schoolbag. 语法易错点 02 · 语法点拨 2.重点句型：I have... 我有…… 1. 句型结构：主语 + have + 物品，用来表达“某人拥有某物”。 例句：I have a schoolbag. 我有一个书包。 I have two pencils. 我有两支铅笔。 2. 拓展：物品数量大于1时，名词要变成复数形式（一般直接在词尾加-s）。 单数：pencil → 复数：pencils; book → books; pen → pens [易错点]：have 后面可接单数物品，也可接复数物品，注意名词单复数变化。 知识演练02 一、用所给单词的正确形式填空。 1. I have two ______ (pencil). 2. She has three ______ (book). 3. I see five ______ (pen). 4. This is one ______ (ruler). 5. I have many ______ (notebook). 6. Two ______ (eraser) are on the desk. 7. I have a new ______ (schoolbag). 8. Three ______ (pencil case) are here. 二、选择题。 ( ) 1. I ______ a pencil. A. have B. has C. am ( ) 2. I have two ______. A. book B. books C. a book ( ) 3. —What do you have? —I have an ______. A. eraser B. pencil C. ruler ( ) 4. I have five ______. A. pen B. pens C. a pen ( ) 5. This is a ______. I like it. A. schoolbags B. schoolbag C. two schoolbags ( ) 6. I have three ______ and one ruler. A. pencil B. pencils C. a pencil ( ) 7. —Do you have a notebook? —Yes, I ______. A. am B. have C. do 语法易错点 03 · 语法点拨 3.句型：They are... / It is... 1. It is + 单数物品（它是……），对应单数名词。 例句：It is a pen. 它是一支钢笔。 2. They are + 复数物品（它们是……），对应复数名词。 例句：They are pencils. 它们是铅笔。 3. 用法区分：看到一个物品用 It is；看到多个物品用 They are。 知识演练03 一、选用 It is 或 They are 补全句子。 1. ______ a book. 2. ______ two pens. 3. ______ an eraser. 4. ______ three rulers. 5. ______ a new schoolbag. 6. ______ five notebooks. 7. ______ a pencil case. 8. ______ four pencils. 二、情景匹配，将左右两栏连线。 1. What is it? A. They are books. 2. What are they? B. It is a ruler. 3. Is it an eraser? C. Yes, it is. 4. Are they pencils? D. No, they aren't. 5. What do you have? E. I have a pen. 6. Is it a pencil? F. No, it isn't. 重难点特训 一、选词填空（a, an, have, has, is, are） 1. This is ______ English book. 2. That ______ a pencil. 3. I ______ a big schoolbag. 4. They ______ rulers. 5. It ______ an eraser. 6. She ______ two notebooks. 7. I have ______ new pen. 8. These ______ pencil cases. 9. It's ______ nice ruler. 10. We ______ many books. 二、单项选择 ( ) 1. I have ______ eraser. A. a B. an C. two ( ) 2. ______ are my pencils. A. It B. They C. This ( ) 3. —What's this? —______ a book. A. It's B. They're C. I'm ( ) 4. I have three . A. pencil B. pencils C. a pencil ( ) 5. This is ______ pencil case. A. an B. a C. two ( ) 6. —What are these? — pens. A. It's B. They're C. I'm ( ) 7. I ______ a ruler. My sister ______ a pen. A. have; has B. has; have C. have; have ( ) 8. There ______ two books in my bag. A.is B. are C. am 三、连词成句，注意大小写和标点符号 1. have, I, book, a (.) 2. are, they, pencils (.) 3. is, it, an, eraser (.) 4. two, I, have, rulers (.) 5. schoolbag, my, is, big (.) 6. notebooks, five, are, these (.) 7. have, she, pen, a (.) 8. pencil case, a, this, is (.)   四、根据中文提示，补全英文句子 1. 我有一块橡皮。 I ______ ______ ______. 2. 它是一把尺子。 ______ ______ ______ ______. 3. 它们是铅笔。 ______ ______ ______. 4. 我有三支钢笔。 I ______ ______ ______. 5. 这是我的书包。 ______ ______ ______ ______. 6. 它们是五本笔记本。 ______ ______ ______ ______. 7. 她有一个铅笔盒。 She ______ ______ ______ ______. 8. 它是一本书。 ______ ______ ______ ______. 五、阅读理解，判断正(T)误(F) Hello, I'm Mike. I have a new schoolbag. It's blue. Look! I have a book, a notebook and a ruler in it. I also have two pencils and an eraser. My friend Liu Tao has a big pencil case. He has four pens and three pencils. We love our school things. ( ) 1. Mike has a red schoolbag. ( ) 2. Mike has an eraser. ( ) 3. Mike has two rulers. ( ) 4. Liu Tao has a pencil case. ( ) 5. Liu Tao has four pens. ( ) 6. Liu Tao has three books. 六、情景交际，选择正确答案. ( ) 1. 你想告诉别人“我有一支铅笔”，可以说：___________ A. I have a pencil. B. It is a pencil. ( ) 2. 别人问这是什么，你回答“它是一块橡皮”，说：___________ A. They are erasers. B. It is an eraser. ( ) 3. 你想说“它们是尺子”，表达为：___________ A. It is a ruler. B. They are rulers. ( ) 4. 你想知道对方有什么文具，问：___________ A. What do you have? B. What is it? ( ) 5. 你想介绍这是你的新书包，说：___________ A. This is my new schoolbag. B. I have a book. ( ) 6. 对方问：Is it a pen? 你作否定回答：___________ A. Yes, it is. B. No, it isn't. ( ) 7. 对方问：Are they books? 你作肯定回答：___________ A. Yes, they are. B. No, they aren't. 参考答案 知识演练01 1.  a 2. an 3. a 4. a 5. A 6. a 7. a 8. a 知识演练02 一、1. pencils 2. books 3. pens 4. ruler 5. notebooks 6. erasers 7. schoolbag 8. pencil cases 二、1.A 2.B 3.A 4.B 5.B 6.B 7.C 知识演练03 一、1. It is 2. They are 3. It is 4. They are 5. It is 6. They are 7. It is 8. They are 二、1-B 2-A 3-C 4-D 5-E 6-F 重难点特训参考答案 一、1. an 2. is 3. have 4. are 5. is 6. has 7. a 8. are 9. a 10. have 二、1.B 2.B 3.A 4.B 5.B 6.B 7.A 8.B 【解析】 1. (B) an 解析：eraser（橡皮）是以元音音素开头的单词，表示“一个”要用 an；a 用于辅音音素开头的单词前，two 后接名词复数，均不符合。 2. (B) They 解析：句中 be 动词是 are，说明主语为复数。It/This 指代单数事物，搭配 is；They 指代复数物品，搭配 are。 3. (A) It's 解析：问句 What's this?（这是什么？）询问单数物品，答语要用 It's（它是）；They're 用于回答复数，I'm 表示“我是”，均错误。 4. (B) pencils 解析：three（三）是基数词，后面必须接可数名词复数。pencil 是单数形式，不能和 three 连用。 5. (B) a 解析：pencil case（铅笔盒）是单数名词，前面用 a；an 用于元音音素开头单词前，two 后接复数名词，故排除。 6. (B) They're 解析：问句 What are these?（这些是什么？）询问复数物品，答语要用They're（它们是）；It's 对应单数，I'm 语义不符。 7. (A) have; has 解析：第一空主语 I（我），后面用动词原形have；第二空主语My sister（我的妹妹）是第三人称单数，后面用 has。 8. (B) are 解析：there be句型遵循“就近原则”，后面two books（两本书）是复数，be动词用are；is搭配单数名词，am主语只能是 I。 三、 1. I have a book. 2. They are pencils. 3. It is an eraser. 4. I have two rulers. 5. My schoolbag is big. 6. These are five notebooks. 7. She has a pen. 8. This is a pencil case. 四、1. have; an; eraser 2. It; is; a; ruler 3. They; are; pencils 4. have; three; pens 5. This; is; my; schoolbag 6. They; are; five; notebooks 7. has; a; pencil; case 8. It; is; a; book 五、1.F 2.T 3.F 4.T 5.T 6.F 【解析】 阅读理解 答案+详细解析 答案：1.F 2.T 3.F 4.T 5.T 6.F 【原文翻译】： 大家好，我是迈克。我有一个新书包，它是蓝色的。看！我的书包里有一本书、一本笔记本和一把尺子。我还有两支铅笔和一块橡皮。我的朋友刘涛有一个大铅笔盒，他有四支钢笔和三支铅笔。我们都很喜爱自己的文具。 1. (F) 解析：文中提到 I have a new schoolbag. It's blue.（我有一个新书包，它是蓝色的），并非红色，所以该题错误。 2. (T) 解析：根据 I also have two pencils and an eraser.（我还有两支铅笔和一块橡皮），可知迈克有一块橡皮，该题正确。 3. (F) 解析：原文写明迈克书包里有 a ruler（一把尺子），不是两把，该题错误。 4. (T) 解析：由 My friend Liu Tao has a big pencil case.（我的朋友刘涛有一个大铅笔盒）可知，刘涛有铅笔盒，该题正确。 5. (T) 解析：文中提到 He has four pens and three pencils.（他有四支钢笔和三支铅笔），和题目描述一致，该题正确。 6. (F) 解析：短文只介绍刘涛有钢笔和铅笔，没有提到书本，该题错误。 六、 1.A 2.B 3.B 4.A 5.A 6.B 7.A 第 1 页 共 7 页 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $