句型全解08-2025-2026学年高中英语必修一句型全解（重大版）

高中·重大版 【必修第一册】 句型全解 必修第一册 句型全解：The key to..is to do sth 高中·重大版·必修第一册 基本结构 句型结构：The key to.is to do sth 'the key to.”中to”为介词，后接名词、代词或动名词作宾语；”is”后的'tod0sth”是不定式 短语作表语，说明the key”的具体内容。 例句展示： The key to solving this problem is to find the right method first. (解决这个问题的关键是先找到正确的方法) The key to success is to work hard and never give up. (成功的关键是努力工作且永不放弃) 句型精讲（核心考法） 考法1：区分to do sth前的逻辑主语（高中核心考点） 判断规则+例句对比 规则：The key to..中'to”为介词，后接名词/代词/动名词(doing);is后的”to do sth”为不 定式作表语，表示具体动作或方法，逻辑主语需通过for sb”引出（不能直接用ofsb,因ky描述 事物属性而非人的品质)。 1:The key to solving the problem is to find its root cause. (to”后接动名词solving,不定式to find表具体方法) 例句2：The key to success is for us to work hard persistently. (逻辑主语us通过for引出，说明“对我们而言”) 真题再现(2024重大版必修第一册单元检测) The key to (improve)your English is to practice daily. 高中·重大版 【必修第一册】 句型全解 答案：improving 解析：”to”为介词，后接动名词，填improving。 真题再现(2023重庆高考模拟改编) The key to achieving goals is (set)clear plans first 答案：to set 解析：is后需用不定式作表语，表具体动作，填tost。 考法2：句型的同义句转换 转换规则+例句转换 规则：将The key to.is to do sthi”转换为”To do sth is the key to.”（不定式短语作主语，谓 语动词用单数s),保持核心逻辑“做某事是…的关键”。 例句l:原句The key to mastering a language is to practice speaking. 同义句：To practice speaking is the key to mastering a language. 例句2：原句The key to a healthy life is to keep a balanced diet.. 同义句：To keep a balanced diet is the key to a healthy life. 真题再现(2024重大版必修第一册同步练习) The key to passing the exam is to review systematically.(改为同义句) systematically is the key to passing the exam. 答案：To review 解析：原句转换为不定式作主语结构，填To review。 考法3：对句型中核心成分提问 提问规则+例句提问 规则1：对'to do sth''提问→用What+is+the key to..? 例句：原句The key to learning math well is to do more exercises. 问句：What is the key to learning math well? 高中·重大版 【必修第一册】 句型全解 规则2：对the key to..”中的名词/动名词提问（即“…的关键”中的“.…”）→用What is+the key to doing sth? 例句：原句The key to this problem is to analyze the data. 间句：What is the key to solving by analyzing the data? 真题再现(2023重大版必修第一册期中测试) The key to protecting the earth is to reduce pollution.(对划线部分提间) is the key to protecting the earth? 答案：What 真题再现(2024重庆高一联考改编) The key to (solve))conflicts is to communicate patiently..(结合考法l提问) What is the key to conflicts? 答案：solving;solving 解析：第一空to”为介词，填solving:第二空提问“解决冲突的关键”，仍用solving。 句型综合训练 训练1：单项选择（考察o后接动名词/不定式辨析） 1.The key to (improve)your English is to practice every day. A.improve B.improving C.improved D.to improve 2.The key to success is (work)hard. A.work B.working C.to work D.worked 3.The key to (solve)this problem is to ask for help. 3 高中·重大版 【必修第一册】 句型全解 A.solve B.solving C.to solve D.solved 4.The key to learning math well is (do)more exercises. A.do B.doing C.to do D.done 5.The key to (keep)healthy is to exercise regularly. A.keep B.keeping C.to keep D.kept 训练2：同义句转换（考察句型变形） 1.The key to passing the exam is to study hard. hard is the key to passing the exam. 2.The key to a happy life is to be kind to others. kind to others is the key to a happy life. 3.The key to mastering English is to practice speaking. speaking is the key to mastering English. 4.The key to losing weight is to eat less and exercise more. less and exercise more is the key to losing weight 5.The key to winning the game is to practice together. together is the key to winning the game. 训练3：完成句子（考察语境运用） 1.学好语文的关键是多读书。 →The key to Chinese well is to read more books. 2.成功的关键是永不放弃。 →The key to success is give up. 高中·重大版 【必修第一册】 句型全解 3.解决这个问题的关键是保持冷静。 →The key to this problem is to stay calm. 4.保持健康的关键是多喝水。 -The key to keeping healthy is more water. 5.提高成绩的关键是认真听讲。 →The key to grades is to listen carefully in class. 训练4：写作高级句式（考察翻译与填空） 1.学好英语的关键是每天练习。 →The key to English well is practice every day. 2.保持友谊的关键是相互理解。 →The key to friendship is understand each other 3.实现梦想的关键是努力奋斗。 →The key to dreams is work hard. 4.保持快乐的关键是积极乐观。 →The key to happy is be positive. 5.提高能力的关键是不断学习。 →The key to abilities is keep learning. 参考答案 I训练1：单项选择 1.B2.C3.B4.C5.B Ⅱ.训练2：同义句转换 1.To study 2.To be 3.To practice 4.To eat 5.To practice I.训练3：完成句子 1.learning 2.to never 3.solving 4.to drink 5.improving V.训练4：写作高级句式 1.learning;to 2.keeping;to 3.achieving;to 4.staying;to 5.improving;to