Unit 3 Happy together（易错题专项训练·语法提升）英语外研版三起五年级上册（新教材）

**基本信息** 聚焦连词用法与动词三单变化两大核心语法点，通过“规则-易错-应用”三层体系实现专项突破，强化语言能力与思维品质。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |连词的用法|3类小练笔（单选5题、填空10题、句子改写5题）|并列/从属连词分类；and/or肯定否定区分、because/so不连用等6大易错点|定义→用法规则（表格归纳）→易错点对比→综合应用| |动词三单变化|2类小练笔（单选5题、填空5题）|4类变化规则（一般加s、ch/sh等加es、辅音+y变i加es、不规则has）|规则分类→典例示范→易错变形→语境运用|

Unit 3 Happy together 专题02 语法提升·易错题专项训练 · 内容导航 · 连词的用法 动词第三人称单数的变化规则 高频易错点、易错点提示、小练笔、答题点拨 易错精讲 连词的用法高频易错点01 一、定义 连词（Conjunction，缩写conj.）用来连接词与词、短语与短语或句子与句子。它像纽带一样只起连接作用，不单独作句子成分。连词按照其性质，可以分为并列连词和从属连词。 二、用法 连词 含义 用法 例句 and 和，又 表示并列关系，用来连接表示对等成分的单词、短语或者句子，表示意思的顺延或者增补。 Let’s sit down and have a rest. 让我们坐下休息一会儿。 but 但是 表示转折关系，所连接的成分意思相反或相对。 The dress is expensive but beautiful. 这件裙子很贵但是很漂亮。 because 因为 引导原因状语从句，表示后面的从句是主句的原因。 I stay at home because it’s raining outside.我待在家里因为外面正在下雨。 三、拓展 连词 含义 用法 例句 or 或者，还是 表示选择关系。 Is it a pen or a pencil? 它是一支钢笔还是一支铅笔？ 和 用在否定句中表示并列。 I don’t like bananas or pears. 我不喜欢香蕉和梨。 so 因此 表示后面的句子是前面句子的结果。 It’s my birthday, so I’m happy. 今天是我的生日，所以我很开心。 易错点提示 易错点 1：and 与 or 混用（肯定句、否定句并列区分） 肯定句并列用 and；否定句并列不用 and，要用 or。 I don’t like milk and juice. I don’t like milk or juice. 易错点 2：and、but 前后词性 / 句式不一致 and、but 连接并列成分时，前后单词、短语形式必须统一。 She likes draw but hate swim. She likes drawing but hates swimming. 易错点 3：because 和 so 不能同时出现在一个句子里 because 表原因，so 表结果，二者二选一，不能连用。 I stay at home because it rains, so I read books. I stay at home because it rains. It rains, so I stay at home. 小练笔 一、单项选择。 ( ) 1. I like ice cream, _______ it's sweet. A. and B. but C. because ( ) 2. Jimmy is short, _______ his brother is tall and strong. A. because B. so C. but ( ) 3. _______ eat _______ drink too much. It’s bad for you. A. Not; and B. Don’t; but C. Don’t; or ( ) 4. The duck has _______ hands, _______ it has legs. A. no; and B. no; but C. not; but ( ) 5. —What do you have _______ Mondays? —I have English _______ music. A. on; and B. at; and C. on; but 二、从方框中选择适当的连词填空。 and     but     or     because     so 1. I like spring there are beautiful flowers everywhere. 2. I want to watch TV the TV didn’t work. 3. Physics (物理) is so easy I like it very much. 4. Who’s taller, Kate Jack? 5. I forgot the key at home, I had to wait outside the door. 6. I’d like to go to your party, I will see the doctor tomorrow. 7. I must wear my sweater, it is very cold now. 8. Miss White likes singing dancing. 9. Which season do you like better, summer winter? 10. I had a cold, I didn’t go to school. 三、按要求完成句子，每空一词。 1. I like spring. I like summer, too.（用 and, but 或 because 合并为一句） I like spring ______ summer. 2. She is tired. She still keeps working.（用 and, but 或 because 合并为一句） She is tired ______ she still keeps working. 3. He can’t go hiking. He has a bad cold.（用 and, but 或 because 合并为一句） He can’t go hiking ______ he has a bad cold. 4. My friend likes playing football. He likes playing basketball.（用 and, but 或 because 合并为一句） My friend likes playing football ______ basketball. 5. —Why do you like winter?（用连词回答问题） —______ I can make a snowman in winter. 动词第三人称单数的变化规则高频易错点02 一般现在时表示经常发生的动作、存在的状态或现阶段的习惯以及客观存在的事实和普遍的真理等，常与 often、usually、sometimes、every day、on Sundays 等连用。 如：I often run in the morning. 我经常早上跑步。 动词第三人称单数的变化规则： ①一般在动词的词尾加s。 like→likes look→looks ②以ch、sh、s、x及辅音字母加o结尾，词尾加es。 teach→teaches wash→washes guess→guesses mix→mixes do→does ③以辅音字母加y结尾的词，变y为i，再加es。 study→studies fly→flies cry→cries ④不规则变化。 have→has 小练笔 一、单项选择。 ( ) 1. Sarah often ______ her room ______ Sundays. A. cleans; on B. clean; in C. cleans; of ( ) 2. Usually Amy ______ to school at 7:30 in the morning. A. goes B. go C. doing ( ) 3. Xiaohui has good habits. She ______ up early every day. A. get B. getting C. gets ( ) 4. Mr. Green ______ every day. Look! He ______ now. A. swims; swims B. swims; swimming C. swims; is swimming ( ) 5. Mike can ______ basketball. He often ______ basketball on Sundays. A. play; playing B. plays; plays C. play; plays 二、用所给单词的适当形式填空。 1. He (work) in a big shop. 2. He often (play) basketball on Sundays. 3. Nancy often (watch) TV at weekends. 4. Lucy often (go) shopping with her mum. 5. My father (have) a bottle of milk every morning. 综合训练 一、用连词 but, because, and 填空。 1. I like playing football my best friend doesn’t like it. 2. Lily didn’t go to the party she had to finish her homework at home. 3. Jack likes reading books he often goes to the library at weekends. 4. We have to stay at home it’s raining outside. 5. Amy takes a walk after dinner every day she wants to keep healthy. 二、用括号中所给单词的适当形式填空。 1. Why can you (be) friends with your new deskmate? 2. The little bird likes to play with (rabbit) in the garden. 3. The boy looks (worry) about the exam. 4. The bird’s and the dog’s (parent) all like their friendship. 5. Tiantian and Xiaoxiao are (difference), so they can’t play together. 三、单项选择。 ( ) 1. We are different from each other ____ we are good friends. A. and B. because C. but ( ) 2. We can share snacks ____ each other. A. for B. to C. with ( ) 3. —Lucy, you look ____. What’s wrong? —I forget to take my homework. A. worries B. worry C. worried ( ) 4. We should ____ each other when we are unhappy. A. walk away B. laugh at C. talk to ( ) 5. I often share my coloured pencils ____ my classmates during art class. A. to B. with C. of 四、按要求完成下列句子。 1. unhappy this me makes (.) (连词成句) 2. playing other Tutu with boys is two (.) (连词成句) 3. because not unhappy I’m your I’m friend (.) (连词成句) 4. I am unhappy because I’m not your friend now. (对划线部分提问） 5. Duoduo has three best friends at the end. (对划线部分提问） 五、根据上下文及首字母提示填写单词，补全短文。 How to Keep Our Friendship My best friend is Mia. She is 1. m and loves singing, while I like drawing. Our differences sometimes make us unhappy, but we both know the 2. k to friendship is talking openly. Once, I have a 3. p to make a funny rabbit craft (手工), but she wants to practise a song instead. “Er ... what can we do?” I say. Then I remember my parent's 4. w : find a way that works for both of us. We decide (决定) to make the craft first and then sing together. We can be happy friends again quickly. We also find we have 5. s hobbies, like playing games. We play together happily. 六、【新语篇·邀请函】阅读邀请函，判断下列句子正 (T) 误 (F)。 Dear Amy, How have you been lately? I’m excited to invite you to the lively Spring Festival Temple Fair in my hometown! Time: Feb. 10th (Tuesday), 9:00 a.m. ~5:00 p.m. Place: Local Cultural Square (old town centre) Activities: ・Watch AI-robot Yangko dance (Spring Festival Gala style) ・Make traditional red lantern souvenirs ・Taste tanghulu and fried dough twists (麻花) It is the most lively event of the year and a great chance to experience Chinese culture. We’ll have a good time, make great memories and strengthen (加强) our friendship. Could you let me know if you can come by Feb. 5th? I can help you plan your trip. Looking forward to your reply! Best wishes, Li Ming ( ) 1. Li Ming writes to invite Amy to a birthday party. ( ) 2. The temple fair is held in the new town centre. ( ) 3. They can watch AI-robot Yangko dance at the fair. ( ) 4. Amy needs to tell Li Ming her decision by Feb. 5th. ( ) 5. Li Ming hopes the trip can strengthen their friendship. 参考答案 小练笔 01 一、单项选择。 1. C 2. C 3. C 4. B 5. A 二、从方框中选择适当的连词填空。 1. because 2. but 3. that 4. or 5. and 6. but 7. because 8. and 9. or 10. so 三、按要求完成句子，每空一词。 1. and 2. but 3. because 4. and 5. Because 小练笔 02 一、单项选择。 1. A 2. A 3. C 4. C 5. C 二、用所给单词的适当形式填空。 1. works 2. plays 3. watches 4. goes 5. has 综合训练 一、用连词 but, because, and 填空。 1. but 2. because 3. and 4. because 5. because 二、用括号中所给单词的适当形式填空。 1. be 2. rabbits 3. worried 4. parents 5. different 三、单项选择。 1. C 2. C 3. C 4. C 5. B 四、按要求完成下列句子。 1. This makes me unhappy. 2. Tutu is playing with two other boys. 3. I’m unhappy because I’m not your friend. 4. Why are you unhappy? 5. How many best friends does Duoduo have at the end? 五、根据上下文及首字母提示填写单词，补全短文。 1. musical 2. key 3. plan 4. words 5. similar 六、【新语篇·邀请函】阅读邀请函，判断下列句子正 (T) 误 (F)。 1. F 2. F 3. T 4. T 5. T 第 1 页 共 18 页 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $