Unit3语法专项课件- 并列复合句（and but so）2025-2026学年沪教版（五四学制）七年级英语下册

该初中英语课件聚焦并列复合句（and/but/so），系统讲解定义、基本结构、三大连词逻辑用法及标点规则。课堂导入从简单句过渡，以定义和结构为学习支架，帮助学生衔接前后知识，构建语法体系。 其亮点在于通过分层练习（如句型改写、单句改错）和逻辑辨析口诀，强化语言能力（精准表达句子）和思维品质（逻辑关系判断）。采用精讲+专项练习的教学方法，课堂小结提炼核心规则，助力学生掌握学习方法，提升学习效率，也为教师提供系统教学资源。

教学课件 沪教英语（五四学制）七年级下册 Unit3 语法专项 —— 并列复合句（and/but/so） 全解精讲+分层练习 1 1. 掌握并列复合句的定义及基本结构 2. 熟记 and、but、so 三大连词的逻辑用法 3. 掌握连词连接句子、短语的标点使用规则 4. 精准区分并列、转折、因果三种逻辑关系 学习目标 核心知识点——并列复合句定义 并列复合句由两个及以上独立简单句构成。 通过 and、but、so 三组并列连词衔接成完整句子。 每个简单句均可独立成句，互不依附。 主要用于描述生活中承接、转折、因果场景。 三大连词核心用法（表格） 连词 中文含义 逻辑关系 and 和、并且、于是 并列、顺承、递进 but 但是、然而 前后语义转折、相反 so 所以、因此 前因后果，因果关系 连词and用法详解 核心逻辑：前后句意一致，无对立、无因果。 可表示并列：罗列两件相似的事或特点。 可表示顺承：动作先后发生、层层递进。 例句：She likes reading, and she reads every day. 译文：她喜欢阅读，并且每天都读书。 连词but用法详解 核心逻辑：前后句意相反、相互矛盾。 专门用于语境转折，是考试最高频易错点。 例句：He studied hard, but he didn't pass the test. 译文：他学习很努力，但是没有通过考试。 关键：前褒后贬、前积极后消极优先用but。 连词so用法详解 核心逻辑：前句原因，后句引出结果。 只表因果，顺序固定：原因在前，结果在后。 例句：It rained heavily, so we stayed at home. 译文：雨下得很大，所以我们待在了家里。 易错：英语中because和so不能同时连用。 必考标点使用规则 1. 连接两个完整句子：连词前必须加逗号 例：I was busy, so I missed the party. 2. 连接两个单词/短语：无需加逗号 例：I like singing and dancing. 标点改错、句型改写常考查此规则。 逻辑关系精准辨析 同向叠加、动作承接 → 选用 and 语义相反、意料之外 → 选用 but 前因后果、引出结果 → 选用 so 口诀：同向and转折but，因果so来结尾 所有填空、改错题型均可按此判断 高频易错点总结 1. 切忌 because 和 so 连用（中英语法差异） 2. 转折语境误用and，因果语境误用but 3. 连接完整句子，遗漏连词前方逗号 4. 混淆前后逻辑，颠倒因果顺序 5. 短语连接多余逗号，句式不规范 选词填空 选用 and / but / so 填空，每词仅限合适语境 1. He got up late, ______ he missed the school bus. 2. The story is short, ______ it is very meaningful. 3. I finished my homework, ______ I watched TV. 4. She is young, ______ she is very helpful. 5. The weather is nice, ______ we go hiking often. so but and but and 连词填空 6. He has lots of toys, ______ he never shares them. 7. I was hungry, ______ I cooked some noodles. 8. Lily likes music, ______ she practices it every day. 9. The task is difficult, ______ I will try my best. 10. It was dark, ______ we turned on the light. but so and but so 单项选择 1. I wanted to play outside, ______ it snowed heavily.A. and B. but C. so 2. He is honest, ______ all people trust him.A. and B. but C. so 3. The bag is small, ______ it can hold many things.A. and B. but C. so 4. I practiced hard, ______ I won the game.A. and B. but C. so 5. She can draw, ______ she can also write poems.A. and B. but C. so B C B C A 句型改写and专项 要求：用and合并两个简单句，注意标点规范 1. He likes swimming. He likes running. 2. She is kind. She always helps others. 3. I clean my room. I keep it tidy. He likes swimming, and he likes running. She is kind, and she always helps others. I clean my room, and I keep it tidy. 句型改写but专项 要求：用but合并句子，突出转折逻辑 1. The math problem is easy. I can't solve it. 2. He is tall. He is not good at basketball. 3. The book is thin. It has much knowledge. The math problem is easy, but I can't solve it. He is tall, but he is not good at basketball. The book is thin, but it has much knowledge. 句型改写so专项 要求：用so合并句子，体现前因后果 1. I felt sick. I stayed at home yesterday. 2. The road was slippery. We walked slowly. 3. She studied well. She got good grades. I felt sick, so I stayed at home yesterday. The road was slippery, so we walked slowly. She studied well, so she got good grades. 中英互译 1. 他乐于助人，所以大家都喜欢他。 2. 这件衣服很漂亮，但是价格太贵了。 3. 我每天读书，并且积累了很多知识。 中英互译 4. I got up early, so I caught the first bus. 5. The journey is tiring, but it is very meaningful. He is helpful, so everyone likes him. This dress is beautiful, but it is too expensive. I read books every day, and I gain much knowledge. 我起得很早，所以赶上了首班车。 旅途很累人，但非常有意义。 根据逻辑填写正确连词，补全句子 1. I missed the bus, ______ I was late for school. 2. The movie is short, ______ it attracts many viewers. 3. He exercises every day, ______ he is very healthy. 4. She lives far from school, ______ she never be late. 5. The task is hard, ______ we finish it together. 6. It was windy, ______ we stopped our outdoor game. so but and but so so 单句改错 ，每句仅有一处错误，修改连词或标点 1. It is sunny, but we can go for a picnic. 2. He worked hard, so he failed the exam. 3. I like singing, but I also like dancing. 4. Because it rained, so we stayed indoors. 5. She is smart, and she doesn't study hard. 6. I was busy, and I refused the invitation. but → so so → but but → and 删去so and → but and → so 综合题型 句式判断 判断下列句子连词使用是否正确 1. He is poor, but he is kind. 2. I practiced a lot, but I won. 3. It snowed, so the ground is white. 4. She reads and writes well. T F, but → so T T 易混句式对比 1. He is tired, so he rests.（因果） 2. He is tired, but he keeps working.（转折） 3. He works hard, and he feels fulfilled.（顺承） 同一主语，不同连词，逻辑完全不同 解题技巧总结 第一步：通读句子，判断前后语义关系 第二步：同向顺承选and，相反转折选but 第三步：前因后果、推导结果直接选so 第四步：检查标点，规避because+so连用错误 课堂小结 核心知识点1 1. and：并列顺承，句意同向叠加 2. but：转折对立，句意前后相反 3. so：因果推导，前为因、后为果 4. 句子连接加逗号，短语连接无逗号 课堂小结 核心知识点2 1. 绝对禁止because与so连用 2. 所有并列句，前后句子独立完整 3. 解题核心：先判逻辑，再选连词 4. 三大连词是造句、改错核心考点 教学课件 Unit3 语法专项 —— 并列复合句（and/but/so） Thank you for listening! 25 $