Unit 3 语法易错+巩固练习（导学案）新四年级英语暑假自学课（沪教版·新教材）

四年级上册暑假自学课（沪教版） Unit 3 How do we use numbers? 语法易错+巩固练习 语法易错01 奇数与偶数的区分（odd / even numbers） 【语法点拨】 英语中，数字可以分为奇数和偶数： • 奇数 odd numbers：不能被2整除的数，如 1, 3, 5, 7, 9, 11... 例：One, three and five are odd numbers. • 偶数 even numbers：能被2整除的数，如 2, 4, 6, 8, 10, 12... 例：Two, four and six are even numbers. 判断技巧： • 个位是 0, 2, 4, 6, 8 的数是偶数 • 个位是 1, 3, 5, 7, 9 的数是奇数 【易错提示】注意 odd 和 even 的拼写和含义！odd 表示"奇数"，even 表示"偶数"，不要混淆。错误：Three is an even number. 正确：Three is an odd number. 【知识演练01】判断下列数字是奇数还是偶数，用 odd 或 even 填空。 1. 2 is an ______ number. 2. 5 is an ______ number. 3. 8 is an ______ number. 4. 13 is an ______ number. 5. 20 is an ______ number. 语法易错02 加减法表达中 equal 的正确用法 【语法点拨】 用英语表达加减法时，要用 plus 表示"加"，minus 表示"减"，equal 表示"等于"： • 加法表达：数字 + plus + 数字 + equals + 答案 例：Two plus three equals five.（2加3等于5） 例：Four plus six equals ten.（4加6等于10） • 减法表达：数字 + minus + 数字 + equals + 答案 例：Ten minus four equals six.（10减4等于6） 例：Eight minus three equals five.（8减3等于5） • equal 的第三人称单数形式是 equals（主语是单数概念"结果"时） 【易错提示】注意 equal 要加 s！在数学算式中，结果是一个单数概念，所以要用 equals。错误：Two plus three equal five. 正确：Two plus three equals five. 【知识演练02】根据算式，用英语写出句子。 1. 3 + 4 = 7 Three plus four ______ seven. 2. 9 - 5 = 4 Nine minus five ______ four. 3. 6 + 8 = 14 Six plus eight ______ fourteen. 4. 12 - 7 = 5 Twelve minus seven ______ five. 5. 5 + 5 = 10 Five plus five ______ ten. 语法易错03 How many...? 询问数量的正确用法 【语法点拨】 询问可数名词的数量时，用 How many...? 句型： • 结构：How many + 可数名词复数 + are there? 例：How many apples are there?（有多少个苹果？） 例：How many books are there?（有多少本书？） 回答时用 There is/are...： • 单数回答：There is one... / There's one... 例：There is one apple. • 复数回答：There are + 数字 + 名词 例：There are five books. 也可以用具体数字直接回答： 例：— How many apples are there? — Five. 【易错提示】How many 后面必须接可数名词复数形式！错误：How many apple are there? 正确：How many apples are there? 【知识演练03】用所给词的适当形式填空。 1. — How many ______ (apple) are there? — There are six apples. 2. — How many ______ (book) are there? — There are ten books. 3. — ______ many students are there? — There are twenty students. 4. — How many ______ (pencil) are there? — There is one pencil. 5. ______ many birds are there in the tree? 综合提升（共55分） 一、情景选择。选择正确的应答语。（10分） (　　) 1. — What's three plus four? — ______ A. It's seven. B. They're seven. C. Seven apples. (　　) 2. — Is five an odd number? — ______ A. Yes, it is. B. No, it isn't. C. Yes, they are. (　　) 3. — ______ apples are there? — There are eight. A. How much B. How many C. What (　　) 4. Ten minus two ______ eight. A. equal B. equals C. is equal (　　) 5. — How many books are there? — ______ A. There is five. B. There are five. C. It's five. 二、判断正误。判断下列句子是否正确，正确的写 T，错误的写 F。（10分） (　　) 1. Four is an odd number. (　　) 2. Six plus three equals nine. (　　) 3. How many apple are there? (　　) 4. Ten minus five equals five. (　　) 5. Two, four and six are even numbers. 三、选词填空。用方框中所给词的适当形式填空。（10分） odd / even　　plus / minus　　equals　　How many 1. Three is an ______ number. 2. Two ______ three equals five. 3. ______ books are there on the desk? 4. Eight minus two ______ six. 5. Ten is an ______ number. 四、按要求完成句子。（10分） 1. Six plus four equals ten.（对画线部分提问） _________________________________________________ 2. Five is an odd number.（改为一般疑问句） _________________________________________________ 3. Is four an even number?（作肯定回答） _________________________________________________ 4. There are ten apples.（对画线部分提问） _________________________________________________ 5. Eight minus three equals five.（用 What 提问） _________________________________________________ 五、完形填空。阅读短文，选择正确的答案。（15分） Look at the numbers. Some numbers are 1 , and some numbers are 2 . Two, four and six are 3 numbers. Three, five and seven are 4 numbers. We use numbers to count things. Two 5 three equals five. Ten 6 four equals six. Numbers help us every day! (　　) 1. A. red B. odd C. big (　　) 2. A. even B. blue C. small (　　) 3. A. odd B. even C. big (　　) 4. A. even B. odd C. small (　　) 5. A. plus B. minus C. equal (　　) 6. A. plus B. minus C. equal 参考答案 【知识演练01】 1. even 2. odd 3. even 4. odd 5. even 【知识演练02】 1. equals 2. equals 3. equals 4. equals 5. equals 【知识演练03】 1. apples 2. books 3. How 4. pencils 5. How 【综合提升】 一、1. A 2. A 3. B 4. B 5. B 二、1. F 2. T 3. F 4. T 5. T 三、1. odd 2. plus 3. How many 4. equals 5. even 四、1. What is six plus four? 2. Is five an odd number? 3. Yes, it is. 4. How many apples are there? 5. What is eight minus three? 五、1. B 2. A 3. B 4. B 5. A 6. B 第 1 页 共 7 页 学科网（北京）股份有限公司 $