連接詞 as soon as、as long as
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康軒 九下 Unit 1
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連接詞 as soon as、as long as
連接詞 as soon as、as long as
文法
文法摘要
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as soon as 表「一…就…」，as long as 表「只要…就…／在…期間」
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時間子句規則：as 引導的時間子句談未來時用動詞現在式；主句可用 will/can/祈使句
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過去事件敘述：兩個動作皆用動詞過去式，表示先後緊接
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語序可互換：主句可在前或後，意思不變，逗號僅在子句置前時使用
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容易混淆：和 when/if/until/while 的差異在於「立即性、條件性、持續到…為止」
基本公式
As soon as + 主詞 + 動詞現在式, 主詞 + will/can/may + 動詞原形
表未來的立即反應；as 子句不可用 will
範例：
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As soon as he arrives, we will start the game.
他一到，我們就開始比賽。
As soon as + 主詞 + 動詞現在式, 祈使句
主句用祈使句表指示
範例：
As soon as you get home, call me.
你一到家，就打電話給我。
As soon as + 主詞 + 動詞過去式, 主詞 + 動詞過去式
表兩個過去動作緊接發生
範例：
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As soon as the bell rang, the students left the classroom.
鈴一響，學生就離開教室。
As long as + 主詞 + 動詞現在式, 主詞 + will/can + 動詞原形
表條件「只要…就…」
範例：
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As long as you study hard, you will pass the test.
只要你用功讀書，你就會通過考試。
主詞 + 動詞（現在式/過去式） + as long as + 主詞 + 動詞（現在式/過去式）
表在…整個期間內成立（時間涵義）
範例：
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The dog stays calm as long as I am with it.
只要我在牠身邊，這隻狗就很冷靜。
常見錯誤
✗
As soon as he will arrive, we will start.
✓
As soon as he arrives, we will start.
as 引導的時間子句談未來時用動詞現在式，不用 will。
✗
As long as you will study hard, you will pass.
✓
As long as you study hard, you will pass.
as long as 子句作條件時也不用 will。
✗
I will call you until I arrive.
✓
I will call you as soon as I arrive.
until 表「直到…之前一直」，本句要表「一到就…」，應用 as soon as。
✗
As soon as I finish my homework, I went to bed.
✓
As soon as I finished my homework, I went to bed.
敘述過去先後動作時，兩子句用過去式保持一致。
✗
As soon as possible, I will finish my homework.
✓
I will finish my homework as soon as possible. / As soon as I can, I will finish my homework.
as soon as possible 是副詞片語，不能當連接詞引導子句；要嘛作片語置於主句內，要嘛用 as soon as + 主詞 + 動詞。
✗
As soon as when he arrives, we will leave.
✓
As soon as he arrives, we will leave. / When he arrives, we will leave.
不可疊用連接詞；擇一使用 as soon as 或 when。
✗
As long as you don't hurry, you'll miss the bus.
✓
Unless you hurry, you'll miss the bus.
表「除非…」時，習慣用 unless 比用 as long as not 更清楚。
相似文法比較
vs. when
when 表一般時間點；as soon as 強調「一…就…」的立即性。
本文法（連接詞 as soon as、as long as）
We will go home as soon as the movie ends.
電影一結束，我們就回家。
對比文法（when）
We will go home when the movie ends.
電影結束時我們就回家。（不特別強調立即）
vs. if
if 表一般條件「如果」；as long as 表「只要」，常帶充分條件或持續條件的語氣。
本文法（連接詞 as soon as、as long as）
You can play as long as you finish your homework.
只要你完成作業，你就可以玩。
對比文法（if）
You can play if you finish your homework.
如果你完成作業，你可以玩。
vs. until
until 表動作持續到某時間為止；as soon as 表到達某時間點後立刻發生另一動作。
本文法（連接詞 as soon as、as long as）
I will text you as soon as I land.
我一降落就傳訊息給你。
對比文法（until）
I won't text you until I land.
我到降落之前都不會傳訊息給你。
出現於
康軒·九下·Unit 1
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