高普考/三四等/高員級◆英文題庫下載題庫

Derek was caught stealing money at school; the principal told him that he was not allowed to go back to school _____his behavior improved.

Derek在學校被抓到偷了錢，校長告訴他不允許回到學校，_____Derek改善行為前。

(A)since

(B)only if

(C)until

(D)provided that

Until「直到...時，到...為止」，不過要注意 until 是用在表示「一直做某件事直到某個時間」。

I lived in Taitung until I was 12 years old.This ticket is valid until December.I will not be here for five days, but I will not be back until Saturday.

Only if｜只有…才

Only if是一個限制條件句，表達唯一的條件，像是「只有…才能…」、「只有...
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Derek was caught stealing money at school; the principal told him that he was not allowed to go back to school _____his behavior improved.

Derek在學校被抓到偷了錢，校長告訴他不允許回到學校，_____Derek改善行為前。

(A)since

(B)only if

(C)until

(D)provided that

Until「直到...時，到...為止」，不過要注意 until 是用在表示「一直做某件事直到某個時間」。

1. I lived in Taitung until I was 12 years old.
2. This ticket is valid until December.
3. I will not be here for five days, but I will not be back until Saturday.
   

Only if｜只有…才

1. Only if是一個限制條件句，表達唯一的條件，像是「只有…才能…」、「只有在…的時候，才能…」或「除非…才會…」
   
2.  I will do it for you only if you ask me nicely.
3. 除非你好好的問我，我才會幫你做這件事。

If only｜但願

1. If only其實就是If的加強語氣，可以同時表達講者的願望與條件
2. If only I didn't have so much homework I could go to the party tonight.
3. 唉，要是沒那麼多作業我就可以去今晚的派對了。
4.  If only I had a girlfriend.
5. 但願我有個女朋友就好了。