结构:主语 + is\am\are + doing
- He is swimming in the river. 他正在河里游泳。
- He is reading on the grass. 他正在草地上读书。
- He is doing his homework. 他正在做作业。
- He is running on the road. 他正在路上跑步。
| 你正在干什么? | |
|---|---|
| What are you doing? 你在做什么? | I am eating. 我正在吃饭。 |
| Where are you eating? 你正在哪吃饭? | I am eating at home. 我正在家吃饭。 |
| What are you eating? 你在吃什么? | I am eating noodles. 我在吃面条。 |
| Who are you eating with? 你在和谁一起吃? | I am eating with my sister. 我和我妹妹一起吃。 |