“Also、as well” 和 “too” 都可以用来补充、添加句子的信息，表示 “也，还”。它们意思相近，但用法却稍有不同。通常情况下，“too” 和 “as well” 只能用在句尾；“also” 既能用在句首，也能用在句中。
用法总结
1. 我们可以用 “also” 修饰动词，放在句子中间使用，表示 “也，还……”。
- He’s really good at tennis, but he also plays football really well.
- Wei loves outdoor activities, but she also enjoys being at home.
2. “Also” 也可以用在句首，表示 “而且，此外……”，起到强调的作用。
- He’s really good at tennis. Also, he plays football really well.
- Wei loves watching films. Also, she knows a lot about them.
3. “As well（也，此外）” 和 “too（也，还）” 用在句末。
- He’s really good at tennis, and he plays football really well as well.
- He’s really good at tennis, and he plays football really well too.
- Wei loves watching films, and she knows a lot about them as well.
- Wei loves watching films, and she knows a lot about them too.
两者之间的区别是，美式英语中 “as well” 没有 “too” 常用；而在英式英语中，“as well” 的使用频率高于 “too”。
