什么叫含蓄虛擬條件句

所謂含蓄虛擬條件句即指將條件從句隱藏在上下文一定的短語中的一類條件句，比如將條件隱含在不定式短語中，將條件隱含在分詞短語中，將條件隱含在介詞短語中，將條件隱含在名詞短語中，將條件隱含在某些連詞(如or, or else, otherwise等)中，將條件隱含在定語從句中，將條件隱含在一定的上下文中，等等。如：

To have studied harder, you would have passed the examination. 你學習更用功些，你早就考及格了。(=if you have studied harder, you…)

Failing this time, what would you do？ 假若這次失敗，那你怎么辦？(=If you failed this time, what…)

Without air, no one could live. 沒有空氣，人就不能活。(=If there were no air, no one could live.)

A true friend would not have betrayed me. 若是真正的朋友，就不會背棄我。(=If he had been a true friend, he would…)

I didn’t know that he was a cheat, or else I wouldn’t have believed him. 我不知道他是個騙子，不然我也不會相信他了。(or else=if I had known he was a cheat)

Anyone who had seen that painting might have taken it for a photo. 凡是看過那畫的人，都可能把它看成是照片。(=If anyone had seen that painting…)

Don’t bother to read all these papers. It would take too long. 不要費事看所有這些文件了，那會花太多時間。(=…If you read all these papers, It would take too long)