The doctor says that you will end up in hospital _________ you go on smoking like that.
A.unlessB.ifC.becauseD.until
B

試題分析:unless除非,如果不; if是否,如果; because 因為;until直到。句意:醫(yī)生說,如果你繼續(xù)那樣吸煙,你將會在醫(yī)院內(nèi)結(jié)束你的生命。結(jié)合語境可知選B。
點評:連詞在句子中主要起聯(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,熟記其基本應用規(guī)則,了解其區(qū)別,注意固定搭配對象,是做好此類題型的關(guān)鍵。
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