1. It was dark and cold. They had to find a house _____ and some wood _____.

A. to stay in … to make a fire with B. to stay … to make a fire with

C. to stay in … to make a fire D. to stay … to make a fire

2. _____ you dislike ancient buildings, Warrick Castle is worth a visit.

A. As B. If C. Even if D. Now that

3. _____ the expense, I _____ a round-the-world tour.

A. Were it not … would take B. If it were not … take

C. Weren’t it for … will take D. If it hadn’t been for … would have taken

參考答案及解析：

1. A。動詞不定式to stay in和to make a fire with分別作定語修飾a house和some wood，與被修飾的名詞構(gòu)成了動賓關(guān)系，所以動詞不定式用及物動詞或不及物動詞加介詞構(gòu)成的相當于及物動詞的短語動詞。故答案為A。

2. C。主句與從句之間是讓步關(guān)系，所以用even if。意為“即使”。故答案為C。

3. D。與過去事實相反的虛擬語氣。主句用should/would/might/could +have +過去分詞，從句用had+過去分詞。故答案為D。