Why not 动词原形-2025-2026学年八年级英语下册句型辨析（北师大版）

初二下册北师大版 【寒假专版】 C版句型辨析 寒假专版 【C版句型辨析】Why not+动词原形？结 构精讲 初中英语·北师大版初二下册 句型辨析精讲 辨析一Why not+动词原形？vs Why don'tyou+动词原形？ 维度 Why not+动词原形？ Why don'tyou+动词原形？ 核心含义提出建议或劝告 提出建议或劝告（语气更委 婉) 句子结构 直接以Why not开头，后接动 以Why don'tyou开头，后接 词原形 动词原形 例句对比 Why not go to the park with us?（直接建议) Why don't you go to the park with us?(语气稍委婉) 真题链接（北师大版初二下册期中真题） -I'm feeling a little bored. -go to see a movie? A.Why not B.Why don't C.How about 答案：A解析：空后是动词原形go,How about后接动名词，排除C;Why don't后需接you,排 除B,选A。 初二下册北师大版 【寒假专版】C版句型辨析 辨析二Why not+动词原形？vs How about+动名词？ 维度 Why not+动词原形？ How about+动名词？ 结构搭配后接动词原形 后接动名词(V-ing形式) 功能侧重多用于提出具体行动建议 可用于提出建议，也可用于询 问情况或看法 例句对比 Why not take a bus to school?(建议具体行动) How about taking a bus to school?(建议) How about your weekend?(询间情况) 真题链接（北师大版初二下册同步练习） playing basketball with us this afternoon? Good idea！ A.Why not B.What about C.Why don't you 答案：B解析：空后是playing为动名词，Why not和Why don'tyou后接动词原形，排除A、C, 选B。 辨析三Why not+动词原形？vs Let's+动词原形 维度 Why not+动词原形？ Let's+动词原形 语气特点建议的语气相对直接，有时暗 提议共同做某事，语气较为随 含”应该做某事”的意味 和、亲切 主语隐含 隐含主语”you”或”we”,建议明确包含说话者和听话者双 对象可明确或不明确 方，主语是"we 例句对比 y not ask the teacher for help?(建议对方或双方去问老师) Let's ask the teacher for help.(提议双方一起去问老师) 真题链接（北师大版初二下册期末真题） 2 初二下册北师大版 【寒假专版】C版句型辨析 -It's a nice day.go for a walk? Sure,I'd love to. A.Let's B.Why not C.How about 答案：B解析：空后是动词原形go,How about后接动名词，排除C:Lt's开头的句子后接动词 原形，但此句标点是问号，Lt's引导的是陈述句，句末用感叹号或句号，排除A,选B。 综合训练 1.-I don't know how to solve this math problem. -ask our teacher for help? A.Why not B.Why don't C.How about 2.-going shopping with me this Saturday? -I'd love to,but I have to finish my homework. A.Why not B.What about C.Let's 3.-The weather is fine.go to the beach? -That sounds great! A.Let's B.Why not C.How about 4.-You look tired.have a rest? A.Why not B.Why don't you C.Both A and B 3 初二下册北师大版 【寒假专版】C版句型辨析 从Why not+动词原形/Why don'tyou+动词原形/How about+动名词/Let's+动词原形中选择 合适的完成句子 1. go to the library to read books this afternoon?It's quiet there. 2. watching a movie tonight?There's a new one in the cinema. 3 clean the classroom together.We need to make it tidy for the open day. 4.You seem sad. talk to your best friend about it? 1.Let's play football after school.(用Why not改写) 2.How about taking a walk in the park?(用Why don'tyou改写) 3.Why not study hard for the exam?(用Let's改写) 阅读短文，选择合适的句型填空，使短文通顺连贯 Dear Peter, I heard you are feeling bored at home.1. go out for some fun?There are many things we can do.2. going to the zoo?I know you like animals.3. invite Tom to join us.He is free this weekend too.4. meet at the bus stop at 9:00 a.m.on Saturday.I'm sure we'll have a good time. I.单项选择 1.A2.B3.B4.C IⅡ.选短语填空/完成句子 1.Why not/Why don't you 2.How about 3.Let's 4.Why not/Why don't you ⅡL.句型转换 1.Why not play football after school? 2.Why don't you take a walk in the park? 4 初二下册北师大版 【寒假专版】C版句型辨析 3.Let's study hard for the exam. V.语篇填空 1.Why not 2.How about 3.Let's 4.Let's 5