You can’t pass the exam ______ you study harder.

A．unless            B．if                C．when             D．so

 

【答案】

A

【解析】

試題分析：unless除非；if   如果，是否； when既然，當(dāng)……時(shí)；so因此。句意：你不能通過這次考試，除非你努力學(xué)習(xí)。故選A。

考點(diǎn)：連詞辨析

點(diǎn)評：連詞在句子中主要其聯(lián)系上下文的作用，他們之間的區(qū)別就是表示邏輯關(guān)系的不同，所以在解題時(shí)先要理解上下文含義，然后根據(jù)上下文邏輯關(guān)系選擇合適的連詞。連詞的用法都比較多，語義之間還有交叉，熟記起基本應(yīng)用規(guī)則，了解其區(qū)別，并結(jié)合固定搭配，是做好此題題型的關(guān)鍵。

 

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