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课时提升作业(一) 必修1 Unit 1 (建议用时40分钟) Ⅰ. 单项填空 1. (2017·合肥模拟)The manager put up a notice to keep the staff ________ of what to do this week. A. informB. informing C. informed D. to inform 【解析】选C。句意: 经理张贴了通知告知员工这周要做什么。staff与inform为被动关系, 故用过去分词。 2. ________ I had done it, I knew I had made a mistake. A. Hardly B. Directly C. Mostly D. Nearly 【解析】选B。directly/immediately/instantly等少数副词具有连词的功能, 用来引导状语从句, 意思是“一……就……”, 相当于as soon as, the moment等用法。 3. Businessman as he is, his main goal is not only to ________ a profit. A. earn B. challenge C. introduce D. develop 【解析】选A。句意: 虽然他是商人, 但他的主要目标不仅仅是获利。earn后可接表示金钱含义的词, 表示“挣得……”。profit意为“利润”。 4. —When will we start the restoration of the historical sites? —Not until our plan ________ by the committee. A. will be approved B. approve | 
