Unit 3 In my schoolbag（期中知识清单）三年级英语上学期（人教大同版·新教材）

Unit 3 In my schoolbag 单元知识清单 人教大同版三年级上册（新教材） 知识归纳 语音 Ii /aɪ/ I ink ice it Jj /dʒeɪ/ Joy jump juice James Kk /keɪ/ keep kite key kind Ll /el/ like look little long 必记单词 book n. 书 *notebook n. 笔记本 schoolbag n. 书包 pencil n. 铅笔 pencil case 铅笔盒 ruler n. 直尺 *eraser n. 橡皮 pen n. 笔；钢笔 常考短语 in my schoolbag 在我的书包里 I have a book. 我有一本书。 I have two erasers. 我有两块橡皮。 an eraser 一块橡皮 a pencil 一支铅笔 How many...? 多少个……？ How many erasers are there? 有多少块橡皮？ She has one schoolbag. 她有一个书包。 He has three pencils. 他有三支铅笔。 We have eight pens. 我们有八支钢笔。 What do you have? 你有什么？ in my pencil case 在我的铅笔盒里 必会句型 1. I have a notebook. 我有一个笔记本。 2. I have two erasers. 我有两块橡皮。 3. How many erasers are there? 有多少块橡皮？ 4. She has three pencils. 她有三支铅笔。 5. We have eight pens. 我们有八支钢笔。 核心语法 考点 01 I have / She has / He has / We have 表示“有” 考点 02 a和an的用法（a book / an eraser） 考点 03 How many...? 询问数量 知识点拨 考点 01 I have / She has / He has / We have 表示“有” “I have one schoolbag.” 我有一个书包。 “She has three pencils.” 她有三支铅笔。 ▸ I/We用have，He/She用has。have和has都表示“有”，但主语不同形式不同。 解析： 一、I have + 物品 I have表示“我有”，后接物品。 例句：I have a notebook. 我有一个笔记本。 例句：I have two erasers. 我有两块橡皮。 二、She has / He has + 物品 She has表示“她有”，He has表示“他有”。 例句：She has one schoolbag. 她有一个书包。 例句：He has three pencils. 他有三支铅笔。 三、We have + 物品 We have表示“我们有”。 例句：We have eight pens. 我们有八支钢笔。 四、名词复数 两个及以上物品用复数形式：erasers, pencils, pens, books, rulers 例句：I have two erasers.（✓）不是 I have two eraser.（✗） 易错提醒：I/We用have，He/She用has，不能混淆。I have a pen.（✓）不是 I has a pen.（✗）She has a book.（✓）不是 She have a book.（✗）两个及以上物品名词加s：two pencils（✓）不是 two pencil（✗）。 ✎ 大显身手 一、单项选择题 ( )1. I _______ a notebook. A. has B. have C. am D. is ( )2. She _______ one schoolbag. A. have B. is C. has D. am ( )3. He _______ three pencils. A. is B. has C. have D. are ( )4. We _______ eight pens. A. has B. are C. is D. have ( )5. I have two _______. A. eraser B. erasers C. a eraser D. an eraser 二、根据中文提示完成句子 1. 我有一个笔记本。I _______ a notebook. 2. 她有一个书包。She _______ one schoolbag. 3. 他有三支铅笔。He _______ three pencils. 4. 我们有八支钢笔。We _______ eight pens. 5. 我有两块橡皮。I have two _______. 考点 02 a和an的用法（a book / an eraser） “It is a schoolbag.” 它是一个书包。 “It is an eraser.” 它是一块橡皮。 ▸ 辅音字母开头的单词前用a，元音字母开头的单词前用an。 解析： 一、用a的情况 a用在辅音字母开头的单词前：a book, a pen, a pencil, a ruler 例句：I have a book. 我有一本书。 例句：It is a schoolbag. 它是一个书包。 二、用an的情况 an用在元音字母开头的单词前：an eraser, an ink-stone 例句：I have an eraser. 我有一块橡皮。 例句：It is an eraser. 它是一块橡皮。 三、判断方法 看单词第一个字母的发音：发元音用an，发辅音用a eraser以e开头，e发元音/iː/，所以用an eraser book以b开头，b发辅音/b/，所以用a book 易错提醒：a和an的选择看单词第一个字母的发音，不是看中文意思。an eraser（✓）不是 a eraser（✗），因为eraser以元音字母e开头。a book（✓）不是 an book（✗），因为book以辅音字母b开头。 ✎ 大显身手 一、单项选择题 ( )1. I have _______ book. A. an B. a C. two D. / ( )2. I have _______ eraser. A. a B. two C. an D. / ( )3. She has _______ pencil. A. an B. a C. two D. / ( )4. It is _______ notebook. A. a B. an C. two D. / ( )5. It is _______ eraser. A. a B. two C. an D. / 二、根据中文提示完成句子 1. 我有一本书。I have _______ book. 2. 我有一块橡皮。I have _______ eraser. 3. 她有一支铅笔。She has _______ pencil. 4. 它是一个书包。It is _______ schoolbag. 5. 它是一块橡皮。It is _______ eraser. 考点 03 How many...? 询问数量 “How many erasers are there?” 有多少块橡皮？ “There are ten little pencils.” 有十支小铅笔。 ▸ How many + 复数名词 + are there? 询问“有多少……”，回答用There are + 数字。 解析： 一、问句结构 How many + 复数名词 + are there? 例句：How many erasers are there? 有多少块橡皮？ 例句：How many pencils are there? 有多少支铅笔？ 二、回答方式 There are + 数字 + 复数名词. 例句：There are two. 有两个。 例句：There are ten little pencils. 有十支小铅笔。 三、How many后接复数名词 How many后面一定要用复数名词： How many erasers（✓）不是 How many eraser（✗） How many pencils（✓）不是 How many pencil（✗） 易错提醒：How many后面必须用复数名词（加s）。How many erasers（✓）不是 How many eraser（✗）。回答数量用数字，不用a/an。I have two pencils.（✓）不是 I have a two pencil.（✗） ✎ 大显身手 一、单项选择题 ( )1. —How many _______ are there? —There are two. A. eraser B. erasers C. a eraser D. an eraser ( )2. —How many pens do you have? —I have _______. A. second B. two C. a D. an ( )3. —_______ many pencils are there? —There are ten. A. What B. Where C. How D. Who ( )4. —How many books are there? —There are _______. A. three B. a C. an D. first ( )5. I have _______ ruler. A. a B. two C. three D. an 二、根据中文提示完成句子 1. 有多少块橡皮？How many _______ are there? 2. 我有三支铅笔。I have three _______. 3. 我们有四本书。We have four _______. 4. 她有两把直尺。She has two _______. 5. 我有一个铅笔盒。I have a pencil _______. 参考答案 考点01 一、B C B D B 二、have has has have erasers 考点02 一、B C B A C 二、a an a a an 考点03 一、B B C A A 二、erasers pencils books rulers case 第页，共页 学科网（北京）股份有限公司 $