(2) “Hey, look where you are going!” “Oh, I’m terribly sorry. _____.”

A. I’m not noticing                                   B. I wasn’t noticing

C. I haven’t noticed                                   D. I don’t notice

答案選B，“我沒注意”是對方提醒之前的事，現經對方一提醒，當然注意到了。

(3) “Oh it’s you ! I ________ you.” “I’ve had my hair cut.”

A. didn’t realize                                        B. haven’t realized

C. didn’t recognize                                    D. don’t recognized 

答案選C。“沒認出是你”是說此話之前的事，說此話時顯然已經認出了對方。

(4) “What’s her new telephone number?” “Oh, I _____.”

A. forget                                                  B. forgot

C. had forgotten                                        D. am forgetting

此題應選A，從語境上看，“忘記”的時間應是現在，即指現在不記得了。

(5) “Since you’ve agreed to go, why aren’t you getting ready?” “But I ______ that you would have me start at once.”

A. don’t realize                                         B. didn’t realize

C. hadn’t realized                                      D. haven’t realized

答案選B。“沒意識到”是對方提醒之前的事。

(6) “It’s twelve o’clock, I think I must be off now.” “Oh, really? I ______ it at all.”

A. don’t realize                                         B. haven’t realized

C. didn’t realize                                        D. hadn’t realized

答案選C。“沒意識到”是在聽到的話之前的事。

5. Mr Smith ______ a book about China last year but I don’t know whether he has finished it.

A. has written                                           B. wrote

C. had written                                           D. was writing

【陷阱】容易誤選B或C。

【分析】此題應選D，這是由 but I don’t know whether he has finished it 這一句話的語境決定的，全句意為“史密斯先生去年在寫一本書，但我不知道他現在是否寫完了”。有的同學可能由于受 last year的影響而誤選B。但若選B，則句子前半部分的意思則變為“史密斯先生去年寫了一本書”，既然是“寫了”，那么這與下文的“但我不知道他現在是否寫完了”相矛盾。

6. He has changed a lot. He _______ not what he _______.

A. is, is                                                    B. was, was

C. is, was                                                 D. was, is

【陷阱】幾個干擾項均有可能誤選。

【分析】最佳答案選C，上文說“他”變化很大，即“他”現在不是過去的那個樣子了，故第一空填is，第二空填 was（其實第二空也可用 used to be）。請看類例：

“What place is it?” “Haven’t you found out we _____ back where we ______?”

A. were, had been                                     B. have been, are

C. are, were                                              D. are, had been

答案選C，We are back where we were 的意思是“我們（現在）又回到剛才來過的地方”。

7. He is very busy. I don’t know if he _____ or not tomorrow.

A. come                                                   B. comes

C. will come                                             D. is coming

【陷阱】此題容易誤選B。認為 if 引導的是條件狀語從句，從句謂語要用一般現在時表示將來意義。

【分析】其實，此題答案應選C，句中if引導的不是條件狀語從句(即if≠如果)，而是賓語從句(即if＝是否)，句意為“他很忙，我不知道明天他是否會來。”請看以下類似試題：

(1) I don’t know if she _____, but if she ____ I will let you know.

A. comes, comes        B. will come, will come

C. comes, will come     D. will come, comes

答案選 D，第一個 if 引導的是賓語從句，第二個 if 引導的是條件狀語從句。

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