After + 先發生, 後發生. After Yuki talked to her cousin, she joined the water sports club.
Before + 後發生, 先發生. Before he joined the club, he was a poor swimmer.
When + 子句, 主要子句. When he heard about the club, he called his friend.
※ 子句在句首要加逗號;放句尾不加逗號。表未來時,子句用現在式。
先把兩件事排出時間順序,再決定用 before 還是 after;前後對調時,名字和代名詞也要跟著換。
After Yuki talked to her cousin, she joined the water sports club.
= Yuki joined the water sports club
after she talked to her cousin.
Yuki 跟表姊談過之後,加入了水上運動社。(Grammar Focus A)
Before he joined the club, he was a poor swimmer.
= He was a poor swimmer
before he joined the club.
他加入社團之前很不會游泳。(Grammar Focus B)
When Zoey has free time, she practices soccer.
Zoey 有空時就練足球。(習慣 → 兩邊都現在式)
You can design your own video games
after you
finish the lessons.
上完課後你就能設計自己的遊戲。(Reading;表未來 → 子句現在式)
✗ After you will finish the lessons…(子句不用 will) ✗ When I heard about it I thought of you.(句首子句後要逗號) ✗ Before I went out, I take an umbrella.(時態不一致)
27 / 28 校考——翰林第一次段考最常考的文法。19 校專考「先後與時態一致」。改寫題常見:A, and then B. = After A, B. = A before B.