在各省市的中考英语题中，连词是高频考察的知识点。连词直接决定句子逻辑与结构完整度，是完形填空、语法填空、书面表达的高频考点。准确使用连词，可避免句式零散、逻辑混乱，让行文更流畅。掌握其用法，既能提升语法题正确率，又能优化作文句式层次，是中考英语拿分的关键基础知识点。
一、中考英语连词的知识和考点
连词是连接单词、短语或句子的虚词，无独立成分，不充当句子主干，却能体现逻辑关系。中考常考并列连词（and、but、or、so）与从属连词（when、if、because、though），前者表并列、转折、选择、因果，后者引导时间、条件、原因、让步等状语从句。
二、核心分类 & 必背知识点
1. 并列连词（连接并列关系）
- and 和、又、并且
-
- 表并列、顺承
- 例：I like English and math.
- but 但是
-
- 表转折
- 例：He is young but clever.
- or 或者；否则
-
- 表选择 / 警告
- 例：Hurry up, or you'll be late.
- so 因此、所以
-
- 表因果
- 例：It rained, so we stayed at home.
- both...and... 两者都
- not only...but also... 不但...... 而且......
- either...or... 要么...... 要么......
- neither...nor... 既不...... 也不......
就近原则：either...or... / neither...nor... / not only...but also... 谓语动词跟靠近的主语一致。
2. 从属连词（引导从句，中考最常考）
（1）时间状语从句
- when 当...... 时候
- while 当...... 时候（常接进行时）
- before 在...... 之前
- after 在...... 之后
- since 自从
- until 直到
（2）条件状语从句
- if 如果
- unless 除非 = if...not
（3）原因状语从句
- because 因为（直接回答 why）
（4）让步状语从句
- though / although 虽然（不能和 but 连用）
（5）结果状语从句
- so...that... 如此...... 以至于......
三、中考高频考点（必背）
- though/although 不与 but 连用✖ Although he is tired, but he works hard.✔ Although he is tired, he works hard.
- because 不与 so 连用✖ Because I was ill, so I didn't go to school.✔ Because I was ill, I didn't go to school.
- or 表 "否则" 祈使句 + or + 陈述句（将来时）例：Study hard, or you'll fail the exam.
- if 引导条件状语从句：主将从现 主句将来时 / 祈使句，从句一般现在时例：I will go camping if it is fine tomorrow.
- so...that... 与 too...to... / ...enough to... 互换He is so young that he can't go to school.= He is too young to go to school.
- 就近原则 Neither you nor he is wrong.Not only he but also I am right.
四、中考英语真题（带答案）
- ---Will you go to the cinema with me this weekend?---Sorry, I can't. I have to look after my sister, ______ I have too much homework.A. but B. and C. or
答案：B
解析：and 表示并列、递进，这里是 "我要照顾妹妹，而且作业很多"，两件事都是不能去的原因，用 and。
- The little boy is only four years old, ______ he can wash his clothes.A. so B. but C. and
答案：B
解析：前半句 "只有四岁"，后半句 "会洗衣服"，意思转折，用 but。
- Hurry up, ______ we'll miss the train.A. and B. or C. but
答案：B
解析：祈使句 + or + 陈述句，表示 **"否则，要不然"**，快点，否则我们会错过火车。
- ______ you don't go to bed early, you will feel tired tomorrow.A. If B. Though C. Unless
答案：A
解析：if 引导条件状语从句，意为 "如果"，如果不早睡，明天会累。
- He didn't go to school yesterday ______ he was ill.A. because B. so C. but
答案：A
解析：because 表示直接原因，没上学是因为生病了。
- Neither he nor I ______ wrong.A. is B. am C. are
答案：B
解析：neither...nor... 遵循就近原则，谓语动词和靠近的主语 I 一致，用 am。
- Although he is very rich, ______ he never wastes money.A. but B. so C. /
答案：C
解析：although/though 表示 "虽然"，不能和 but 连用，后面不加连词。
- I won't go to the party ______ I'm invited.A. if B. unless C. when
答案：B
解析：unless = if...not，意为 **"除非"**，除非被邀请，否则我不去派对。
