IF 條件句與現在事實相符之"條件交換" 這個考法是TOEIC高曝光題。判斷方式也極為簡單，只要主要句中的動詞為現在式或是未來式。IF所領導之條件句就搭配現在式。

1. TOEIC 假設語氣考試題型 PART III.
在假設語氣 PART I 及 PART II 中我們談到的都是有和實際狀況不符之假設。本章結我
們談的雖然仍然是 If 條件句，但它的使用方式比較偏向於”條件交換” 而非” 事後悔
恨”。
If + S + 現在簡單式…, S + will + V 原
If the plane is late, I will call.
(如果班機誤點了，我就打電話) -> 言外之意： 如果班機沒誤點，我就不打電話
If + S + 現在簡單式…, S + 助動詞 (現在式) + V 原
If the phone lines are damaged, we cannot send the fax.
(如果電話線路損毀了，我們就沒有辦法寄發傳真了)
-> 言外之意：如果電話線路正常，我們就可以寄發傳真
TOEIC 考題解析:
題型 1. If I _____ this report before 2:00, my secretary will type it. (A)
A) finish
B) finished
C) has finished 解題技巧: 只要看到主要句子中的動詞為 will (未來式)/ 助動詞
D) will finish (現在式), 那麼 if 所引導之條件句動詞只能選擇現在式。
有別於與事實不符合之假設語法，在 TOEIC 考試中，如果考的是
表達現在狀況之條件交換，通常挖空的位置都是在 IF 所領導的
條件句中。

2. 1. If the speaker _____ her presentation, she will have more confidence.
A) prepared B) prepares C) had prepared D) were preparing
2. Ask me for help if you _____ the questionnaire.
A) do not understand B) would not understand C) didn’t understand D) had not
understood
3. _____ a message if you can’t transfer the telephone call.
A) Take B) Will take C) Taken D) Would take
4. If the student _____ for tomorrow’s exam, she’ll be more confident.
A) prepares B) prepared C) prepare D) would prepare
5. If you _____ how to use the word processor, ask any one of us.
A) won’t understand B) don’t understand C) understood D) not understand
6. If you aren’t able to finish the letter now, _____ it later.
A) You could have done B) you can do C) you have done D) you will can do
7. If you _____ cancel your reservation, please do so forty-eight hours before that date.
A) Needed B) will need C) need D) had needed
8. If we don’t entertain our out –of-town buyers they _____ such big orders.
A) will place B) might not place C) would place D) wouldn’t place
9. Come to our next picnic if you _____ the chance.
A) have B) will have C) had D) don’t have