be bad for sth doing sth对某事 做某事有害-2025-2026学年中考英语句型全解（全国版）

初中全国版 【中考必备】 句型全解 中考必备 句型全解：be bad for sth../doing sth. 初中·全国版·中考必备 基本结构 句型结构：be bad for sth./doing sth..(对某事/做某事有害) be动词随主语的人称和数变化(am/is/are/was/were等)，for为介词，后接名词、代词或动名 词(doing sth.) 例句展示： Smoking is bad for your health.(吸烟对你的健康有害) Eating too much candy is bad for teeth.(吃太多糖果对牙齿有害) 句型精讲（核心考法） 考法1：for后接名词或动名词的用法辨析 区分规则+例句对比 规则1：for后接名词时，表示“对某事物有害”，直接接名词原形 例句：Eating too much candy is bad for teeth. 规则2：for后接动作（即“做某事”）时，需用动名词形式(v.-ing) 例句：Staying up late is bad for health. 真题再现(2024全国版中考模拟题) Watching too much TV is bad our eyes. A.to B.for C.with D.at 答案：B 初中全国版 【中考必备】 句型全解 解析：“对眼睛有害”符合be bad for sth.结构，用for (2023湖北武汉中考) It's bad for you(smoke)so much.(用所给词的适当形式填空) 答案：to smoke 解析：此处虽为不定式结构，但核心考点为be bad for后接动作时的逻辑，原句隐含“吸烟 这个行为有害”，for后实际接动作时需符合语境语法，此处为it作形式主语结构，不定式to smoke 作真正主语，符合中考常考的be bad for(sb)to do sth.变体用法 考法2：句型的反义表达转换 转换规则+例句转换 规则：be bad for的反义表达为be good for(对…有益)，转换时直接替换形容词bad为 good,结构保持一致 例句l:原句Drinking cold water is bad for your stomach, 反义句：Drinking warm water is good for your stomach. 例句2：原句It is bad for children to play computer games too long 反义句：It is good for children to do sports every day.. 真题再现(2024江苏南京中考改编) Reading in the sun is bad for your eyes.(改为反义句) Reading in proper light is your eyes. 答案：good for 解析：bad的反义为good,直接替换后保持be good for结构 考法3：对句型中“有害对象”的提问 提问规则+例句提问 规则：对for后的名词（即“有害对象”）提问时，用疑问词what,结构为What+be+bad for.? 初中全国版 【中考必备】 句型全解 例句：原句Playing with fire is bad for safety. 间句：What is playing with fire bad for'? 真题再现(2023广东中考) Eating too much junk food is bad for health.(对划线部分提问) is eating too much junk food bad? 答案：What;for 解析：划线部分health为“有害对象”，用what提问，后接for保持结构完整 句型综合训练 训练1：单项选择（考察be bad for结构） 1.Eating too much ice cream is bad. your throat A.to B.for C.with D.at 2.Staying up late is bad our health A.in B.on C.for D.about 3.Running after meals is bad digestion. A.to B.for C.with D.at 4.What is smoking bad? A.to B.for C.with D.about 3 初中全国版 【中考必备】 句型全解 5.Watching movies on small screens for hours is bad eyesight. A.of B.for C.from D.with 训练2：同义句转换（考察反义表达转换） 1.Eating too many snacks is bad for your teeth. -Eating too many snacks is not your teeth 2.Staying indoors all day is bad for children's growth. -Staying indoors all day is not children's growth. 3.Reading in dim light is bad for eyes. Reading in dim light is not eyes. 4.Playing phone games for a long time is bad for study. -Playing phone games for a long time is not study. 5.Eating junk food often is bad for health. -Eating junk food often is not health 训练3：完成句子（考察be bad for用法） 1.吃太多甜食对牙齿有害。 -Eating too much sweet food is bad 2.熬夜对身体有害。 →Staying up late is bad 3.这对你的眼睛不好。 →It is bad 4.什么对我们的环境有害？ ->is bad our environment? 5.喝太多碳酸饮料对骨骼有害。 -Drinking too much soda is bad 训练4：写作高级句式（根据中文翻译） 初中全国版 【中考必备】 句型全解 1.众所周知，空气污染对我们的健康有害。 As we all know,air pollution our health. 2.医生说吃太多外卖对胃不好。 -Doctors say eating too much takeout the stomach. 3.长时间盯着屏幕对视力有害。 Staring at the screen for a long time eyesight. 4.这种坏习惯对学习成绩有害。 →This bad habit academic performance. 5.父母总是告诉我们，说谎对品格有害。 Parents always tell us that lying character 参考答案 1.训练1：单项选择 1.B2.C3.B4.B5.B IⅡ.训练2：同义句转换 1.good for 2.good for 3.good for 4.good for 5.good for I.训练3：完成句子 1.for teeth 2.for our health 3.for your eyes 4.What;for 5.for bones V.训练4：写作高级句式 1.is bad for 2.is bad for 3.is bad for 4.is bad for 5.is bad for 5