20．Shut the window，_________ it'll get too cold in here．（　　）
A．soB．yetC．butD．otherwise

分析 把窗戶關(guān)上，否則這里會(huì)太冷．

解答 答案是D．本題考查副詞詞義辨析． so因此；yet 然而；but 但是；otherwise否則；根據(jù)上下文的邏輯，"否則"這里會(huì)太冷，因此答案是D．

點(diǎn)評(píng) 本題考查副詞詞義辨析，要在熟悉各副詞詞義的基礎(chǔ)上結(jié)合語(yǔ)境做出合理的推斷．

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