Professor Smith, along with his assistants, _____on the Project day and night to meet the deadline.
A．workB．workingC．is workingD．a(chǎn)re working
C

試題分析：參考主謂一致。本句的主語是Professor Smith, along with his assistants，謂語動詞要和前面的名詞Professor Smith保持一致，故使用單數(shù)形式，排除AD項。B項不能單獨做謂語。句意：史密斯教授和他的助手在夜以繼日地做這項工作，以趕上最后期限。故C正確。
點評：主謂一致主要指“人稱”和“數(shù)”方面的一致關(guān)系。對大多數(shù)人來說，往往會在掌握主語和隨后的謂語動詞之間的一致問題上遇到困難。一般情況下，主謂之間的一致關(guān)系由以下三個原則的支配：語法一致原則 (grammatical concord) 意義一致原則 (notional concord) 就近原則 (principle of proximity)�！爸髦^一致”考查內(nèi)容涉及名詞單數(shù)或復(fù)數(shù)作主語、不可數(shù)名詞作主語、不定代詞作主語、并列結(jié)構(gòu)作主語、特殊名詞作主語時與謂語動詞數(shù)的一致等。
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