be good at doing sth-2025-2026学年七年级英语上册句型全解（外研版）

初一上册外研版 【寒假专版】A版句型全解 寒假专版 【A版句型全解】be good at doing sth. 初中·外研版·初一上册 基本结构 句型结构：be good at doing sth. be动词根据主语的人称和数进行变化(am/is/are) at为介词，后接动词的-ing形式 doing sth.表示擅长的具体动作或活动 例句展示： She is good at playing the piano..(她擅长弹钢琴) They are good at swimming in the river..(他们擅长在河里游泳) 句型精讲（核心考法） 考法1：基本结构及be动词的正确形式 核心规侧+例句示范 规则：句型基本结构为”主语+be动词+good at+动词-ing形式'，be动词需根据主语的人 称和数保持一致(I→am,you→are,he/she/it一is,复数主语→are) 例句l:She is good at singing English songs.(主语she为第三人称单数，be动词用is) 例句2：They are good at playing basketball.(主语they为复数，be动词用are) 真题再现（2024外研版初一上册期中测试) He good at drawing pictures. A.am B.is C.are D.be 初一上册外研版 【寒假专版】A版句型全解 答案：B 解析：主语he是第三人称单数，be动词用is。 考法2：动词-ing形式的正确变化 变化规侧+例句对比 规则l:一般动词直接加-ing(如play→playing,read一→reading) 例句：My brother is good at playing football. 规则2：以不发音的e结尾的动词去e加-ing(如dance-→dancing,write-writing) 例句：She is good at dancing to music. 规则3：重读闭音节结尾且末尾只有一个辅音字母，双写该辅音字母加-ing（如un一→unning, swim→swimming) 例句：He is good at swimming in the river. 真题再现(2023外研版初一上册单元测试) She is good at (sing)songs.(用所给词的适当形式填空) 答案：singing 解析：sing是一般动词，直接加-ing变为singing。 考法3：句型的否定句转换 转换规则+例句转换 规则：在be动词后加not构成否定句，结构为”主语+be动词+not+good at+动词-ing形 式” 例句l:原句Tom is good at playing chess.否定句：Tom is not good at playing chess. 例句2：原句They are good at speaking English.否定句：They are not good at speaking English. 真题再现(2024外研版初一上册同步练习) We are good at drawing..(改为否定句) We good at drawing. 初一上册外研版 【寒假专版】A版句型全解 答案：are not 考法4：句型的一般疑问句及回答 转换与回答规则+例句示范 规则l:将be动词提到主语前构成一般疑问句，结构为Be动词+主语+good at+动词-ing 形式 规则2：肯定回答用Yes,主语+be动词.”，否定回答用No,主语+be动词+not” 例句：原句She is good at dancing.疑间句：Is she good at dancing??肯定回答：Yes,she is.否 定回答：No,she is not. 真题再现(2023外研版初一上册期末测试) you good at playing basketball??(补全一般疑问句) 答案：Are 句型综合训练 训练l:单项选择（考察be good at doing sth.核心考法） 1.My sister good at playing the piano. A.am B.is C.are D.be 2.Theynot good at swimming in the lake. A.am B.is C.are D.be 3. you good at drawing cartoons? A.Am B.Is C.Are 3 初一上册外研版 【寒假专版】 A版句型全解 D.Be 4.He is good at fast. A.run B.runs C.running D.ran 5.She good at dancing when she was young. A.am B.is C.are D.was 6.We good at speaking English now. A.am B.is C.are D.be 训练2：同义句转换（考察句型变形) 1.Tom is good at playing football.(改为否定句) →Tom good at playing football. 2.They are good at singing.(改为一般疑问句) good at singing? 3.She is good at swimming.(改为否定句) →She good at swimming. 4.We are good at drawing.(改为一般疑问句) good at drawing? 5.He is good at playing basketball.(改为否定句) →He good at playing basketball. 训练3：完成句子（考察语境运用） 1.她擅长弹吉他。 →She good at the guitar. 4 初一上册外研版 【寒假专版】A版句型全解 2.我们不擅长打篮球。 →We good at basketball. 3.你擅长游泳吗？ you good at 4.他们擅长唱歌和跳舞。 →They good at and 5.他擅长画画。 →He good at 训练4：写作高级句式（考察翻译与挖空） 1.他擅长打篮球，所以经常在比赛中得分。 →He good at basketball,so he often scores in games. 2.我的妹妹擅长弹钢琴，她的梦想是成为一名钢琴家。 →My sistergood at_ the piano,and her dream is to be a pianist. 3.我们擅长英语，所以可以和外国朋友交流。 We good at English,so we can communicate with foreign friends. 参考答案 I.训练1：单项选择 1.B2.C3.C4.C5.D6.C IⅡ.训练2：同义句转换 1.is not 2.Are they 3.is not 4.Are we 5.is not I训练3：完成句子 1.is;playing 2.are not;playing 3.Are;swimming 4.are;singing;dancing 5.is,drawing V.训练4：写作高级句式 1.is;playing 2.is,playing 3.are 5