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與過(guò)去事實(shí)相反的虛擬語(yǔ)氣

請(qǐng)看下面的題目：

—If he __________，he __________ that food.

—Luckily he was sent to the hospital immediately.

A. was warned，would not take                B. had been warned，would not have taken

C. would be warned，had not taken           D. would have been warned，had not taken

此題應(yīng)選 B。該題考查與過(guò)去事實(shí)相反的虛擬語(yǔ)氣：此時(shí)條件從句的謂語(yǔ)用 had+過(guò)去分詞，主句的謂語(yǔ)用 would(should，could，might)+have+過(guò)去分詞(www.52ysedu.com)：

1. If she had worked harder，she __________.

A. would succeed                                      B. had succeeded

C. should succeed                                     D. would have succeeded

2. If my lawyer ________ here last Saturday，he _________ me from going.

A. had been; would have prevented              B. had been; would prevent

C. were; would                                          D. were; would have prevented 

3. I didn’t see your sister at the meeting. If she __________，she would have met my brother.

A. has come                                             B. did come 

C. came                                                   D. had come

4. You didn’t let me drive. If we ________ in turn，you

__________ so tired.

A. drove; didn’t get                                  B. drove; wouldn’t get

C. were driving; wouldn’t get                    D. had driven; wouldn’t have got

答案：1. D 2. A 3. D 4. D