英语短语"as well as"是一个常用的并列或比较结构，核心含义可分为两类，用法需结合语境判断：
1、 并列关系：表示“也；以及；还有”（强调前者，即“A as well as B”中A是重点）；
2、 比较关系：表示“和…一样好”（用于两者能力、水平的比较）。
用于并列两个事物，强调前面的主语，因此谓语动词需与前面的主语（A）保持一致（而非后面的B）。
My mother as well as my father is a teacher.（我妈妈和爸爸都是老师。→ 强调“妈妈”）
Tom, as well as his friends, likes playing football.（汤姆和他的朋友都喜欢踢足球。→ 强调“汤姆”）
She invited me as well as you.（她邀请了我还有你。→ 强调“我”）
连接两个动作时，后面的动词通常与前面的动词形式一致（不定式可省to，动名词/谓语动词保持形式）。
He works hard as well as plays hard.（他既努力工作又尽情玩乐。→ 谓语动词一致）
I want to visit Paris as well as (to) see the Eiffel Tower.（我想参观巴黎还想看埃菲尔铁塔。→ 不定式省to）
She likes singing as well as dancing.（她喜欢唱歌也喜欢跳舞。→ 动名词一致）
用于描述主语同时具备两种特征，前后词性需一致。
The movie is interesting as well as educational.（这部电影既有趣又有教育意义。）
He speaks English fluently as well as accurately.（他英语说得流利又准确。）
可连接两个分句，通常省略重复的成分（如主语、助动词）。
I know he’s coming as well as (that) she’s staying.（我知道他要来还有她会留下。→ 省略从句引导词that）
She can cook as well as (she can) bake.（她会做饭也会烤蛋糕。→ 省略重复的主语和助动词）
此时as well as引导比较状语从句，需补充完整比较的对象（常用“do/does/did”代替前面的动作）。
He sings as well as his sister does.（他唱得和他姐姐一样好。）
I can run as well as you can.（我跑得和你一样好。）
相当于“besides”或“in addition to”，强调“额外的内容”。
As well as English, he speaks French and Spanish.（除了英语，他还会说法语和西班牙语。）
As well as being a doctor, she is also a writer.（除了是医生，她还是一位作家。）
1、 主谓一致：永远以前面的主语（A）为准，而非后面的B（易错点！）。
❌ 错误：Tom as well as his friends like sports.
✅ 正确：Tom as well as his friends likes sports.
2、 否定句不用：否定句中表示“也不”需用“neither...nor”或“not...either”，而非“as well as”。
❌ 错误：He doesn’t like coffee as well as tea.（易歧义）
✅ 正确：He doesn’t like coffee, and he doesn’t like tea either.（他既不喜欢咖啡也不喜欢茶。）
3、 与“and”的区别：
“and”是平等并列，谓语动词用复数（如：Tom and his friends like sports.）；
“as well as”是强调前者，谓语动词随前者变化（如：Tom as well as his friends likes sports.）。
“as well as”的核心是“强调前者的并列”或“两者的同等比较”，关键是区分语境（并列 vs 比较），并注意主谓一致的规则。通过例子记忆会更清晰！