Question

54.[2001上海] What would have happened ________, as far as the river bank?

A. Bob had walked farther	B. if Bob should walk farther
C. had Bob walked farther	D. if Bob walked farther

 

Answer 1

答案：C
提示：

題目考察if連接的條件句中的虛擬語(yǔ)氣結(jié)構(gòu)： 表示未來(lái)實(shí)現(xiàn)的可能性極小, if從句用“should / were to + do”，主句中“should / would / could / might to do” 例如：If I should / were to so the experiment, I would do it some other way. 表示與現(xiàn)在事實(shí)相反，if從句用過(guò)去式，主句用“should / would / could / might + to do” 例如：If I had a bike, I would lend it to you. 表示與過(guò)去事實(shí)相反，if從句用過(guò)去完成式，主句用“should / would / could / might + to have done” 例如：If he had been here, he would have helped you. 并注意，if從句中，若有were, had, should三詞時(shí)，可省去if，同時(shí)采用主謂語(yǔ)倒裝形式來(lái)表示條件。 例如：Should anyone call, please take a message.