19.I have two sisters,both of them are doctors.them改為whom 或both前加and.

分析 我有兩個妹妹,她們都是醫(yī)生.

解答 答案:them改為whom  或both前加and 考查句子改錯.前后兩個單句,缺少連詞,將them改為whom構(gòu)成定語從句;或在both前加and,構(gòu)成并列句.

點評 單句改錯涉及詞匯、語法、句型結(jié)構(gòu)等方面的知識和邏輯情理的推斷和綜合辨析能力,是一種在較高層次上考查考生對英語知識的掌握和語言綜合運用能力的測試題型.它是專門針對考生們平時學(xué)習(xí)英語過程中,尤其是寫作練習(xí)中常犯的又是較為普遍的錯誤而設(shè)計的.

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