基本结构
“Spend something on something” 是一个常用的英语动词短语，表示“在某事上花费（时间、金钱等）”。其基本结构为：
spend + 时间/金钱 + on + 名词spend + 时间/金钱 + (in) + 动名词（-ing 形式）
常见例句
- I spent $50 on books yesterday.
- She spends a lot of time on her homework.
- They spent the whole afternoon (in) cleaning the house.
- We don’t want to spend too much money on unnecessary things.
注意事项
1. “Spend” 的主语通常是人，而不是物。
✅ 正确：He spent two hours on the project.
❌ 错误：Two hours were spent by him on the project.（虽然语法成立，但不符合自然表达习惯）
2. 不可说 “spend on doing” — 应使用 “spend ... (in) doing” 或 “spend ... on ...” 其中之一。
✅ 正确：I spent an hour reading.
❌ 错误：I spent an hour on reading.（虽偶见，但不如 “on a book” 等名词自然）
常见错误对比
- ❌ I spent on a new phone.
✅ I spent money on a new phone. - ❌ She spends on studying every night.
✅ She spends time studying every night.