什么是 “Prepare to Do”？
“Prepare to do something” 表示为即将要做的事情做准备，强调的是计划或意图，动作尚未开始。
She is preparing to study abroad next year.
（她正在为明年出国留学做准备。）
（她正在为明年出国留学做准备。）
结构：prepare + to + 动词原形
什么是 “Doing”？
“Doing” 是现在分词形式，常用于进行时态，表示动作正在进行中。
He is doing his homework right now.
（他正在做作业。）
（他正在做作业。）
结构：be + doing（现在进行时）
对比分析
| 方面 | Prepare to Do | Doing (进行时) |
|---|---|---|
| 时间状态 | 动作尚未开始，处于准备阶段 | 动作正在进行 |
| 语法结构 | prepare + to + 动词原形 | am/is/are + doing |
| 例句 | We are preparing to launch the product. | We are launching the product now. |
常见误区
- ❌ 错误：She is preparing studying.
✅ 正确：She is preparing to study. - ❌ 错误：They prepare doing the project.
✅ 正确：They are doing the project. / They are preparing to do the project.
小测验
请选择正确的句子：