句型全解09-2025-2026学年高中英语必修二句型全解（重大版）

高中英语重大版 【必修第二册】 句型全解 核心句型 The reason why...is that... 高中·重大版·必修第二册 基本结构 句型结构：The reason why.is that.… The reason why..引导定语从句，修饰先行词reason,why在从句中作原因状语；is后的that 引导表语从句，说明具体原因，that不可省略。 例句展示： The reason why he was late for school is that he missed the early bus.(他上学迟到的原因是他错过了早 班车) The reason why we need to protect the environment is that it provides us with necessary resources. 需要保护环境的原因是它为我们提供了必要的资源) 句型精讲（核心考法） 考法1：that从句的时态一致性 规则+例句对比 规则：当主句主语'The reason'”为一般现在时(is/are)时，that从句通常用一般现在时；若主 句为一般过去时(was/were),从句常用一般过去时（客观真理除外）。 例句l:The reason why he is late is that he misses the early bus.(主句一般现在时，从句一般 现在时) 例句2：The reason why she cried yesterday was that she lost her wallet..(主句一般过去时，从句一般 过去时) 真题再现(2024重大版必修第二册单元测试) The reason why he(fail)the exam is that he never studies hard. 答案：fails 高中英语重大版 【必修第二册】 句型全解 解析：主句”is”为一般现在时，从句描述常态，用一般现在时，主语e为第三人称单数，故 填fails 真题再现(2023重庆高考模拟题) The reason why they didn't attend the meeting-(be)that they had an urgent task. 答案：was 解析：主句描述过去发生的事情，用一般过去时，主语the reason'”为单数，故填was 考法2：句型的被动转换 转换规则+例句转换 规则：将主动句中”hat”从句的主语作为被动句的动作承受者，谓语动词变为be+过去分词” 结构，保持时态与主句一致。 例句I:原句The reason why we canceled the picnic is that the weather becomes bad. a被动句：The reason why the picnic was canceled is that the weather became bad.. 例句2：原句The reason why she trusts him is that he always keeps his promise. a被动句：The reason why he is trusted by her is that his promise is always kept.. 真题再现(2024重大版必修第二册同步练习) The reason why people admire him is that he helps many homeless children..（改为被动句) The reason why he_-by people is that many homeless children_-by him. 答案：is admired;are helped 解析：第一空被动结构为'is admired,(一般现在时，主语he);第二空children”为复数，被 动结构为”are helped 考法3：对句型中不同成分提问 提问规则+例句提问 规则1：对that”从句内容提问→用What+is/was+the reason why..? 2 高中英语重大版 【必修第二册】 句型全解 例句：原句The reason why she left early is that she felt sick. 间句：What is the reason why she left early2 规则2：对'why”引导的定语从句修饰的先行词'reason”提问（即对”原因本身”提问）→用 Why+be+主语+that.? 例句：原句The reason why he refused the offer is that the salary was too low. 问句：Why is he refused the offer that the salary was too low?(注：实际应用中常简化为Why did he refuse the offer??此处严格按句型结构提问) 真题再现(2023重庆高三联考) The reason why the library closes early today is that the staff need training.(对划线部分提间) -is the reason why the library closes early today? 答案：What 解析：对'that”从句内容（原因的具体内容）提问，用What 真题再现(2024重大版必修第二册期末测试) The reason why they succeeded is that they worked together.(对划线部分提问) they succeed that they worked together? 答案：Why did 解析：对”原因本身”提问，简化为Why did they succeed?,此处按考纲要求保留that”从句 结构关联，故填Why did 句型综合训练 训练1：单项选择（考察that从句时态一致性） 1.The reason why she is happy today-that she passes the exam A.is B.was C.are D.were 3 高中英语重大版 【必修第二册】 句型全解 2.The reason why they missed the train-that they got up late yesterday. A.is B.was C.are D.were 3.The reason why he_(study)hard is that he wants to go to college. A.study B.studies C.studied D.will study 4.The reason why we_(cancel)the trip was that it rained heavily. A.cancel B.cancels C.canceled D.will cancel 5.The reason why the earth_(go)around the sun is known to us all. A.go B.goes C.went D.will go 训练2：同义句转换（考察句型被动转换） 1.The reason why we choose this hotel is that it offers good service. -The reason why this hotelby us is that good serviceby it. 2.The reason why people love pandas is that they look cute. -The reason why pandas__by people is that they look cute. 3.The reason why he bought the book is that his teacher recommended it. -The reason why the book_by him is that it_by his teacher. 训练3：完成句子（考察句型结构运用） 1.他迟到的原因是他错过了早班车。 -The reason why he was late__he missed the early bus. 2.我们努力学习的原因是我们想取得好成绩。 The reason why we study hard_we want to get good grades. 4 高中英语重大版 【必修第二册】 句型全解 3.她哭泣的原因是她丢失了她的新钢笔。 The reason why she cried_she lost her new pen. 训练4：写作高级句式（考察句型翻译与运用） 1.他受欢迎的原因是他总是乐于助人。 -The reason why he-popular_-he is always ready to help others. 2.我们举办这次活动的原因是为了帮助贫困儿童。 The reason why we hold this activitywe want to help poor children. 3.这棵树死了的原因是没有人给它浇水。 -The reason why the tree died_no one watered it 参考答案 I训练1：单项选择 1.A2.B3.B4.C5.B Ⅱ.训练2：同义句转换 1.is chosen;is offered 2.are loved 3.was bought;was recommended I训练3：完成句子 1.is that 2.is that 3.is that V.训练4：写作高级句式 1.is;is that 2.is that 3.is that 5