Why not do sth Why don't you do sth-2025-2026学年七年级英语下册句型全解（仁爱版）

初一下册仁爱版 【寒假专版】A版句型全解 寒假专版 【A版句型全解】Why not do sth.?/Why don't you do sth.? 初中·仁爱版·初一下册 基本结构 句型结构：Why not do sth.?/Why don't you do sth.? Why not do sth.?中'not'后直接跟动词原形，用于提出建议；Why don't you do sth.?中”don't”为助 动词否定形式，”yo”可替换为其他人称代词主格，同样用于向对方提出建议。 例句展示： Why not go shopping with me?(为什么不和我一起去购物呢) Why don't you read this book?(你为什么不读这本书呢) 句型精讲（核心考法） 考法1：句型基本结构及用法区分（教材核心考点） 结构规则+例句对比 规则1：Why not do sth.直接以Why not开头，后接动词原形，用于提出建议，语气简洁直 接 例句：Why not go shopping with me? 规则2：Why don't you do sth..以Why don'tyou开头，后接动词原形，同样用于提建议，语 气较委婉，更强调对你”的建议 例句：Why don't you join the English club? 真题再现（仁爱版七年级下册Unit5 Topic:3同步练习） go to the park this weekend?-Good idea! A.Why not B.Why don't 1 初一下册仁爱版 【寒假专版】A版句型全解 C.How about D.Let's 答案：A 解析：空后为动词原形go,How about后接动名词，Let's用于肯定句开头，Why don't后需 接you,故用Why not 考法2：句型的同义句转换 转换规则+例句转换 规则：Why not do sth.与Why don't you do sth.可直接转换，转换时只需在Why not后加 you并将not移至don't处，动词原形保持不变 例句l:原句Why not ask the teacher for help? 同义句：Why don't you ask the teacher for help? 例句2：原句Why don't you study harder? 同义句：Why not study harder? 真题再现（仁爱版七年级下册Unit6 Topic2单元测试） Why not buy a new pen?(改为同义句) buy a new pen? 答案：Why don'tyou 考法3：对句型中动词短语提问 提问规则+例句提问 规则：对句型中动词原形及其后的内容（即建议做的事情）提问时，用What开头，结构为 What Why not/Why don't you do? 例句：原句Why not play basketball after school? 问句：What Why not do after school? 原句Why don't you clean your room? 间句：What Why don't you do? 初一下册仁爱版 【寒假专版】A版句型全解 真题再现（仁爱版七年级下册期中复习卷） Why don't you watch TV in the evening?(对划线部分提问) in the evening? 答案：What Why don't you do 考法4：句型的情景交际应用 应用规则+例句对话 规则：用于日常对话中向对方提出建议，回答常用Good idea./That sounds good./Soy,Ican't. 等 例句1：-Why not go for a walk?-That sounds good. 例句2：-Why don't you go to bed early?一I have to finish my homework. 真题再现（仁爱版七年级下册Unit7 Topicl期末真题） -I'm tired. -OK,let's have a rest. A.Why not go to school B.Why don't you have a rest C.Why not play soccer D.Why don't you study 答案：B 解析：根据答语”let's have a rest'”可知，问句应是建议休息，B选项符合语境 句型综合训练 训练1：单项选择（考察句型基本结构及用法区分) 1.- join the music club with me? -That sounds great! A.Why not B.Why don't C.How about D.Let's 3 初一下册仁爱版 【寒假专版】A版句型全解 2 go swimming this afternoon? I'm sorry,I have to finish my homework A.Why not B.Why don't C.What about D.Let's 3.It's a fine day. go for a picnic in the park? A.Why not B.Why don't C.How about D.Let's 4. you ask your teacher for help? Good idea!I'll go now. A.Why not B.Why don't C.What about D.Let's watch a movie tonight? -OK,let's check the showtimes. A.Why not B.Why don't C.How about D.Let's 训练2：同义句转换（考察句型的同义句转换) 1.Why not visit the museum this weekend? visit the museum this weekend? 2.Why don't you read more English books? → read more English books? 3.Why not try this new restaurant? try this new restaurant? 4.Why don't you take a walk after dinner? take a walk after dinner? 5.Why not study for the test together? 4 初一下册仁爱版 【寒假专版】A版句型全解 study for the test together? 训练3：完成句子（考察对句型中动词短语提问） 1.Why not play football with us?(对划线部分提问) with us? 2.Why don't you clean the classroom?(对划线部分提问) _? 3.Why not go to the library this afternoon?(对划线部分提问) this afternoon? 4.Why don't you buy a new schoolbag?(对划线部分提间) 、2 5. Why not help your mom with housework?(对划线部分提问) 训练4：写作高级句式（考察句型的情景交际应用） 1.你看起来很累，为什么不休息一下呢？ →You look tired. a rest? 2.这个问题很难，为什么不向老师求助呢？ -This problem is difficult. the teacher for help? 3.周末天气很好，为什么不和朋友去爬山呢？ -The weather is nice this weekend. mountains with friends? 4.你还没完成作业，为什么不现在开始做呢？ -You haven't finished your homework. it now? 参考答案 I训练1：单项选择 1.A2.A3.A4.B5.A Ⅱ.训练2：同义句转换 1.Why don't you 2.Why not 3.Why don't you 4.Why not 5.Why don't you I训练3：完成句子 5 初一下册仁爱版 【寒假专版】A版句型全解 1.What Why not do 2.What Why don't you do 3.What Why not do 4.What Why don't you do 5.What Why not do V.训练4：写作高级句式 1.Why not have 2.Why not ask 3.Why not climb 4.Why not do 6