2. 外语
  3. We used to swim in this lake, but now it is seriously ______.

We used to swim in this lake, but now it is seriously ______.

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问题 We used to swim in this lake, but now it is seriously ______.
选项 A、contemplated
B、contrived
C、corrupted
D、contaminated
答案D
解析 近义词辨析。这四个选项的词性都是动词，其中contemplate表示“注视；凝视；沉思；期望”，如：The young surgeon contemplated the difficult operation of kidney transplant．(年青的外科医生为肾移植这一棘手的手术苦思冥想。)contrive是指“发明，设计，图谋”，如：to contrive a new kind of engine (设计一种新的发动机)；corrupt表示“使腐烂，腐蚀，使恶化”，如：The businessman was sent to prison for trying to corrupt a tax official with money．(他因企图向税务官员行贿而被判入狱。)contaminate表示“弄脏；污染”，如：The river was contaminated with waste．(这河水被垃圾污染了。)根据句意，河水被严重污染了，应该选择D)。
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