14．I have worked all day，now I'm dog-tired．（　�。�
A．not tiredB．relaxedC．very tiredD．excited

分析 我已經(jīng)工作了一整天，現(xiàn)在我筋疲力盡了．

解答 答案：C 根據(jù)劃線短語dog-tired，并結(jié)合語境I have worked all day在工作一整天的情況下可以推知現(xiàn)在一定是很累，所以劃線短語的含義為筋疲力盡的；疲倦極的，是一種固定表達(dá)；結(jié)合選項(xiàng)的含義，not tired不累的；relaxed放松的；very tired很累的；excited興奮的．所以同意短語為very tired，意為"很累的，筋疲力盡的"．故選C．

點(diǎn)評 做同義詞與近義詞辨析的題關(guān)鍵是了解固定短語的含義；也可以結(jié)合語境及關(guān)鍵句推測出短語的含義；再結(jié)合選項(xiàng)選出可以替換的短語．

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