2．The reason for your mistakes is because you lack confidence in yourself．because改為that．

分析 你犯錯誤的原因是你缺乏對自己的自信．

解答 答案：because改為that 考查句子改錯．reason后接句意完整的表語從句時引導(dǎo)詞用that，不用because．

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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