句型易错点精讲02-2025-2026学年七年级英语上册句型易错点精讲（外研版）

初一上册外研版 【寒假专版】 B版句型易错点精讲 寒假专版 【B版句型易错点精讲】be good at doing sth. 初中·外研版·初一上册 句型结构：be good at doing sth. 易错点l:误将be good at后的动词原形作宾语，忽略doing形式 核心知识点： be good at中的at是介词，后接动词时需用动名词(doing)形式。 典型例句对比： 典型错误：She is good at dance.(×) 正确表达：She is good at dancing.(√) 真题链接（外研版初一上册同步练习）： My sister is good at (swim)in the river. 答案：swimming 解析：be good at后接动词-ing形式，swim的动名词为swimming。 易错点2：混淆be good at与good for的介词搭配 核心知识点： be good at表示“擅长做某事”，后接doing:be good for表示“对…有益”，后接名词/代 词。 典型例句对比： 典型错误：Running is good at our health.(×) 正确表达：Running is good for our health.(√) 初一上册外研版 【寒假专版】 B版句型易错点精讲 真题链接（外研版初一上册基础训练）： Eating vegetables is good us,and my brother is good cooking them A.at;for B.for,at C.for;for 答案：B 解析：第一空“对我们有益”用be good for;第二空“擅长做饭”用be good at doing,故选 B。 易错点3：第三人称单数主语时be动词形式错误 核心知识点： 主语是第三人称单数(he/shel/it/单数名词)时，be动词用is:复数主语用are;第一人称I用 am 典型例句对比： 典型错误：Tom and Mary is good at playing tennis.(×,主语为复数) 正确表达：Tom and Mary are good at playing tennis.(√) 真题链接（外研版初一上册同步测试）： your father good at fishing? -Yes,he A.Are;is B.Is;are C.Is;is 答案：C 解析：主语your father是第三人称单数，be动词用is,答语也用is。 易错点4：否定句中be动词位置错误 初一上册外研版 【寒假专版】 B版句型易错点精讲 核心知识点： be good at的否定形式在be动词后加not,即be not good at doing sth. 典型例句对比： 典型错误：He good at not singing.(×) 正确表达：He is not good at singing.(√) 例句对比： She is good at drawing.(肯定句) She is not good at drawing.(否定句) They are good at English.(肯定句) They are not good at English.(否定句) 句型易错点精准训练 单项选择 1.My grandmother is good making dumplings,and it is good our health A.at:for B.for;at C.at;at 2. your parents good at playing badminton? -No,they A.Is;isn't B.Are;aren't C.Are;isn't 3.Neither my brother nor my sister good at singing,but both of them good at dancing. A.is;are B.are;is C.am;are 二、用所给单词的适当形式填空 1.My best friend is good at (draw)pictures of animals. 2.Swimming and running (be)good for our body. 3.The little girl」 (not be)good at playing the piano,but she likes it very much 初一上册外研版 【寒假专版】 B版句型易错点精讲 三、改正句子中的错误 1.He is good at play football with his friends. 2.Watching TV too much is good at our eyes. 3.My sister and I is good at English and math. 参考答案 I.单项选择 1.A2B3.A I用所给单词的适当形式填空 1.drawing 2.are 3.is not/isn't I改正句子中的错误 1.He is good at playing football with his friends. 2.Watching TV too much is good for our eyes. 3.My sister and I are good at English and math.