1.The free trade port needs to______ the possibility of sharpening the competitive edge of the island worldwide.
A. exploit B. explode C. explore D. export
【答案】C
【解析】
【详解】考查动词词义辨析。句意：自由贸易港需要探索提高这个岛在世界范围内的竞争优势的可能性。A. exploit开发；B. explode爆发；C. explore探讨，探索；D. export出口。根据下文说的可能性，这里用探讨更符合语，故选C。
2.Mr.White works with a chemical import-export company,but he________for this industrial exhibition, since he is on leave.
A. has worked B. works C. has been working D. is working
【答案】D
【解析】
【详解】考查现在进行时态。句意：怀特先生在一家化工制品进出口公司工作,但是,他现在正在为这工业博览会工作,因为他在休假中。此处表示动作的正在进行，且句子主语是he，故选D。
