假設句 桃園大眾捷運公司

假設句

一、與現在事實相反的假設

(一)連接詞:

If

(二)條件子句

主詞 +   

1.were

2.過去式V

3.過去式助動詞 + 原形V

(三)主要子句

主詞 +    should

would

could

might       + 原形V

例:1. If he were rich, he would buy the bank.

(他若是有錢,他會買這間銀行。)

例:2. If I had time, I would study French.

(我若有時間,就要學法文。)

例:3. If I could fly, I would fly to London.

(我若能飛,我要飛去倫敦。)

(四)Be動詞,不論人稱,一律用were,如:

If I were a bird,......

If you were here,......

If he were rich,......

二、與過去事實相反的假設

(一)連接詞:

If

(二)條件子句:

主詞+had+p.p.

(三)主要子句:     

主詞 +    should

would

could

might       + have +p.p.

例:1.     If he had studied hard, he could have won the scholarship.

(假如他當時用功,他可能已經得了獎學金。)

〔但他當時沒有用功,所以他沒有得到獎學金。〕

例: 2.   If I had had enough time, I would have gone abroad with you.

(假如當時我有足夠的時間,我會跟你出國。)

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