25. In 753 BC,_______ city of Rome was founded, and in 509 BC, it became________ republic.

A. the; the　　　 B. a; a　　　　　　 C. a; the　 D. the; a

[解析]选D。考查冠词。the city of Rome“罗马城”，此处是特指；a republic一个共和国，表示泛指。句意：公元前753年，罗马城建成，公元前509年，罗马成为共和国。

24. I’m afraid you will_____ your bright future if you continue to be so casual on your work.

A. destroy　　　　　 B. harm　　　　　 C. ruin　　　　 D. damage

[解析]选C。考查动词辨析。destroy是及物动词，指“拆毁”，也可以指精神上的“摧毁(名誉、努力等)”，造成的是彻底的毁坏；harm也是及物动词，“伤害，损害”，与injure有时可以通用，特指伤及一个人或其心智、健康、权利等; ruin是及物动词，指“使成为废墟，崩溃”，也可指“毁掉前程”；damage只是造成局部的破坏。

23. Most people are______ bringing down the price of housing because it’s too high for them.

A. in favor of　　　　 B. in honor of

C. in search of　　　　　　　 D. in memory of

[解析]选A。考查介词短语辨析。句意：大多数人赞成降低房价，对他们来说房价太高了。in favor of“支持；赞成”。in honor of为了纪念；in search of寻找；in memory of为了纪念；均不符合句意。

22. Most farmers in that area grow crops either to_____ their family_______ to sell for money.

A. feed; and　　　　　 B. feed; or

C. supply; or　　　　　 D. supply; nor

[解析]选B。考查动词辨析。either. . . or. . . “或者……或者……”；feed their family养家。句意为：在那个地区农民种庄稼或者养家或者卖了换钱。

21. Honestly speaking, it is my teacher’s_____ that made me finally take up my present career as a biology researcher. 　

A. advantage　 　　　 B. influence　　　　 C. taste　　　　　 D. guard

[解析]选B。考查名词辨析。句意：是老师的影响让我最终从事了现在的生物研究员事业。advantage优势；influence影响；taste口味；guard警戒。

15. Because of the economic crisis, the company stopped trading________ clothing.

A. for　　 　　　　 B. in　　　　　　　 C. with　　　　　　 D. between

[解析]选B。句意：由于经济危机，这家公司不再做服装生意了。trade in做(某方面的)生意；trade. . . for. . . 以……交换……；trade with与……做生意。between两者之间。根据句意选B。

14. -Which of those electronic dictionaries do you like most?

-_______. They are expensive and of little use.

A. None　 B. Neither　　　 C. All　　　　　　 D. Both

[解析]选A。考查代词。由上句的most可知有多本词典，三个以上的全部否定应该用none。Neither是两个的全部否定。而C、D两项为肯定，与“They are expensive and of little use”在意思上不一致。

13. _______ the parents look after their children,_______ their children depend on them.

A. The carefully; the more

B. The more carefully; the more

C. More carefully; more

D. The more careful; the more

[解析]选B。“the+比较级，the+比较级”表示“越……越……”。句意：父母对孩子照顾得越细心，孩子就越依赖他们。此处要用副词carefully修饰动词look after。

12．She was so angry and sad that she left and would come to the city________ .

A. no longer 　　　　　　　 B. once more

　C. more or less 　　　　　 D. no more

[解析]选D。句意：她是如此地生气和伤心以至于她走了再也不愿来这座城市了。no longer表示一种持续状态的终止；once more“又一次”；more or less“或多或少”，与句意不符；no more表示不再重复以前发生过的动作，故选D。