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使用并列短語強調(diào)相似性 差 : If a is a root of the function f, then the function g has root b. 好: If a is a root of the function f, then b is a root of the function g. 好: If the function f has a root a, then the function g has a root b. 三、寫作規(guī)范 20 9. 避免單調(diào)重復(fù) 差 : First we solved an equation. Then we solved another equation. 好: First we solved an equation. The solution of the first equation allowed us to solve the second equation. 三、寫作規(guī)范 21 1. 保持主謂一致 例如: (1) One of the solutions is positive. (2) The positive solution and the negative solutions are… (3) The positive solution or the negative solutions are… (4) The positive solutions, as well as the negative solutions, are… 四、英語用法 22 2. 正確使用 that 和 which (1) that 是指句中某個特定的對象 . The car that was blue went through the stop sign. (2) which 是用來給句中的某個對象做補充說明 . The car, which was blue, went through the stop sign. 注意:只要 that 聽起來順耳,就用 that. 四、英語用法 23 3. 避免拼寫錯誤 四、英語用法 24 4. 正確使用冠詞 (1) 在表示單個物體的名詞前一定要加冠詞 . 如: The function is differentiable. 或 A function is differentiable. (2) 在表示某一類物體的名詞前不加冠詞 . 如: The derivatives are not necessa