一一、、忌解题时不分析时间状语及语境含义，机忌解题时不分析时间状语及语境含义，机械地由一半动词形式推断另一半动词形式械地由一半动词形式推断另一半动词形式例例1: If he had told me his telephone number yesterday, I ___ him now. A. would have phoned B. could have phoned C. could phone D. can phone例例2: If you had listened to the doctor, you ___ all right now. A. are B. were C. would D. would have been 二二. 忌不分析语境逻辑及意义，将不完全虚拟语忌不分析语境逻辑及意义，将不完全虚拟语气误判为完全虚拟语气气误判为完全虚拟语气例例1: You could have passed the exam, but you ___ hard. A. hadn`t studied B. didn`t study C. don`t study D. haven`t studied例例2: ---You could have walked to the station, it was so near. ---Yes, a taxi ___ necessary at all. A. hadn`t been B. weren`t not C. hasn`t been D. wasn`t 三三. 忌受思维定势影响，将非虚拟语气误判为忌受思维定势影响，将非虚拟语气误判为虚拟语气。
虚拟语气例例1: He insisted that he ____ (be) right in doing so.例例2: His expression suggested that he ____ (be) angry.例例3. 翻译：快点，否则你就会迟到翻译：快点，否则你就会迟到 ———————————————waswasHurry up, or you`ll be late. 四四、、忌将忌将as if / though与与if完成等同起来，完成等同起来，造成动词形式的误用造成动词形式的误用例例1. He treated her as if she ___ his own daughter. A. were B. had been C. has been D. is例例2. He looks as if he ___ the news. A. hears B. heard C. had heard D. has heard 五、忌不分析虚拟条件从句的创新形式，五、忌不分析虚拟条件从句的创新形式，因不会追根求源而乱选一气。
因不会追根求源而乱选一气一）句型还原（一）句型还原1、倒装句型还原、倒装句型还原例：例：___ he ___ time, he would certainly have come to the party last night. A. Has; had B. If; had C. Did; have D. Had; had2、省略句型还原、省略句型还原例：例：If only I ___ ten years younger! A. am B. would be C. should be D. were =If he had had time=If I were ten years young! I would be very happy 3、疑问句型还原、疑问句型还原例：例：---He didn`t ask me to go. -- ___ if he ___ you? A. Will you go; asked B. Do you go; asked C. Would you have gone; had asked D. Have you gone; had asked 4. if it were not for （对现在假设）或（对现在假设）或if it had not been for（对过去假设）创新句型还原（对过去假设）创新句型还原例：例：___ it ___ for your help, I couldn`t have made any progress. A. Had; not been B. Should; not been C. Did; not been D. Not; be=If he had asked you, you would have gone.=If it had not been for your help.=If you had not helped me. （二）创新语境还原（二）创新语境还原 if虚拟条件从句通常用虚拟条件从句通常用if从句来体现虚拟背景，但从句来体现虚拟背景，但有时也可用有时也可用with / without 短语短语、、or / otherwise短语短语、、but for短语短语、、介词短语介词短语、、but并列句和一个真实语气的句子，来代替虚并列句和一个真实语气的句子，来代替虚拟语境。
拟语境1.With / without 语境还原语境还原例：例：I ___ greater progress with his help. A. would make B. would have made C. should make D. have made析：选析：选B 该语境可还原为：该语境可还原为：I would have made greater progress if he had helped me. 2. or / otherwise 语境还原语境还原例例: I`m ill, or I ___. A. am still working B. would still be working C. still worked D. still work析：选析：选B该语境可还原为：该语境可还原为：If I were not ill, I would still be working.3. but for 语境还原语境还原例例: But for your help, I ___ the place. A. can`t find B. can`t have found C. couldn`t have found D. haven`t found析：选析：选C。
该语境可还原为：该语境可还原为：If you had not helped me, I couldn`t have found the place. 4. but真实语气语境还原真实语气语境还原例例: He ___ the test, but he wasn`t careful enough. A. could have passed B. were able to pass C. must have passed D. might be able to pass 析析: 选选A该语境可还原为该语境可还原为:He could have passed the test, if he had been careful enough.5. 陈述句真实语气语境还原陈述句真实语气语境还原 例：例：He was careless. Such mistakes ___. A. could be avoided B. could avoid C. could have avoided D. could have been avoided析：选析：选D。
该语境可还原为：该语境可还原为： If he had not been care-less, such mistakes could have been avoided. 6. 介词短语语境还原介词短语语境还原 例例: Under another social system, such floods ___ terrible trouble. A. will cause B. caused C. have caused D. would have caused 析：选析：选D该语境可还原为该语境可还原为: If we had been under another social system, such floods would have caused terrible trouble. 。