as long as
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康軒 九下 Unit 1
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as long as
as long as
片語
片語摘要
•
as long as 用法：連接條件子句，意為「只要……就……」
•
句型：as long as + 主詞 + 動詞；條件子句常用現在式表未來
•
易混淆：與 if、as soon as、時間長度的 as long as 區分
•
替代表達：so long as、provided (that)（較正式）
形式與用法
as long as
作為條件連接詞，表示「只要……就……」。後面要接完整子句（主詞＋動詞）。在條件子句中通常用現在式表未來，不等於表示時間先後的 as soon as，也不同於表示「和……一樣長/久」的比較用法。
範例：
顯示全部 (4)
As long as you finish your homework, you can play video games.
只要你把作業寫完，就可以玩電動。
其他形式：
so long as
與 as long as 同義，語氣略偏正式或書面，但口語也常見。
範例：
顯示全部 (2)
You can sit here so long as you keep your voice down.
只要你小聲一點，就可以坐這裡。
provided (that)
較正式，多見於規定、條款；that 可省略。
範例：
顯示全部 (2)
You may leave early, provided (that) you finish the report.
只要你完成報告，就可以提早離開。
常見錯誤
✗
As long as I get home, I’ll call you.
✓
As soon as I get home, I’ll call you.
把表示時間先後的 as soon as（「一……就……」）誤用成表示條件的 as long as。此句要強調「一到家就打電話」，應用 as soon as。
✗
As long as you will study hard, you will pass the exam.
✓
As long as you study hard, you will pass the exam.
條件子句一般不用 will，而用現在式表未來（與第一類條件句規則相同）。
✗
As long as good weather, we'll go hiking.
✓
As long as the weather is good, we'll go hiking.
as long as 後面需接完整子句（主詞＋動詞），不能只用名詞片語。
✗
I have studied English as long as three years.
✓
I have studied English for three years.／I have studied English for as long as three years.
把 as long as 誤當成表示時間長度的介系詞使用。表持續時間用 for；若要強調「長達」，可用 for as long as + 時段。此處不涉及條件用法。
同義詞與反義詞
同義
so long as
(只要)
與 as long as 同義；語氣略偏正式或書面，但差異不大。
同義
provided (that)
(只要／倘若)
較正式，常見於規定、條款或書面語。
同義
on condition that
(以……為條件)
更強調「附帶條件」，語氣最正式，常見於契約或規章。
同義
if
(如果)
一般條件連接詞，語氣中性；as long as 帶有「只要達到最低條件就可」的限制感。
反義
unless
(除非)
以否定條件表達，與 as long as 的正向條件形成對比。
出現於
康軒·九下·Unit 1
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