13．Unemployment in USA is ______ to remain high in 2010，and possibly for the next few years．（　　）
A．normalB．necessaryC．gradualD．likely

分析 2010年美國失業(yè)率很可能仍然很高，并且在隨的幾年仍是如此．

解答 答案是D．本題考查形容詞詞義辨析．normal正常的，常規(guī)的；necessary有必要的；normal 和necessary在句中做表語時往往用it 做形式主語，構(gòu)成"It is normal/necessary to do sth（做…是正常的/有必要的）"，本句主語是unemployment，所以排除A和B；gradual逐漸的，不符合句意，排除C項(xiàng)；likely可能的；在句中做表語時既可以用it 做形式主語，構(gòu)成It is likely that^（可能…），也可以人或物做主語，構(gòu)成sb．/sth．be likely to do （某人或某物可能…）；本題中表示"失業(yè)率可能任然很高"，以物做主語，所以答案選擇D．

點(diǎn)評 形容詞辨析的關(guān)鍵在于積累詞匯和一些相關(guān)的固定搭配，在此基礎(chǔ)上結(jié)合語境，做出合理的判斷．

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