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because在引导原因状语从句时具有明确的用法和功能 一、基本用法 "Because"是一个从属连词，用于引导原因状语从句，表达主句动作或状态发生的原因。它通常位于主句之后，但也可以放在主句之前，这时会用逗号与主句隔开。 **例句**： * I didn't go to the party because I was tired. （我没去参加派对，因为我累了。） * Because I was tired, I went to bed early. （因为我累了，所以我早睡了。） 二、表示直接原因 "Because"强调直接原因，即导致某个结果或动作发生的直接因素。它通常用于回答以"why"引导的疑问句。 **例句**： * Why are you late? Because I missed the bus. （你为什么迟到了？因为我错过了公交车。） 三、与其他连词的搭配使用 "Because"可以与其他连词搭配使用，以构成更复杂的句子结构。例如，它可以与"so"搭配使用，表示因果关系。 **例句**： * He didn't sleep well because he was sick, so he stayed home. （他生病了，没睡好，所以他待在家里。） 新概念英语mp3 高中英语单词听力 新概念英语mp3下载 人教版初中英语mp3 四、与"so"的区别 需要注意的是，"because"和"so"不能同时出现在一个句子中，以避免重复和冗余。如果两个词都出现，需要去掉一个。 **错误例句**：I didn't go to the party because I was tired, so I stayed at home. （错误用法） **正确例句**：I didn't go to the party because I was tired. （正确用法） 五、语气强弱的比较 相比其他表示原因的连词（如"as"和"since"），"because"的语气较强，强调直接和具体的原因。它通常用于需要明确说明原因的情况。 **例句**： * He was late because of the heavy traffic. （他迟到了，因为交通拥堵。） * He was late, as/since the traffic was heavy. （他迟到了，因为交通很拥堵。） 在上述例句中，"because"更强调交通拥堵是导致迟到的直接原因。 总结来说，"because"作为英语中的常见连词，在引导原因状语从句时具有明确的用法和功能。它强调直接原因，通常位于主句之后，并可以与其他连词搭配使用以构成更复杂的句子结构。了解并正确掌握"because"的用法，可以提高英语表达的准确性和流畅性。 选择题 1. I didn't go to the cinema ______ I had a headache. A. so B. but C. because D. and 2. ______ she is very busy, she doesn't have time to go out with us. A. Since B. Although C. Because D. As 3. ______ the weather was bad, we had to stay at home. A. Since B. Because C. As D. For 填空题 1. We couldn't go swimming _______ the river was too dangerous. 2. _______ she was tired, she went to bed early. 3. _______ the rain, we had to cancel the outdoor activity. 改写句子 1. He missed the train because he woke up late. (保持句意不变) ______________________________________________________________ 2. She didn't come to the party. She was ill. (合并为一句话) ______________________________________________________________ 选择题解析 1. 【答案】C 【解析】题干中需要的是表示原因的连词，而 "so" 是表示结果的连词，"but" 表示转折，"and" 表示并列。只有 "because" 符合题意。 2. 【答案】C 【解析】句子中需要表示原因的连词，而 "since" 和 "as" 虽然可以表示原因，但它们更多地用于强调已知的事实或已知的原因。"Although" 是表示让步的连词，不符合句意。因此，正确答案是 "because"。 3. 【答案】B 【解析】句子中需要表示原因的连词，而 "since" 和 "as" 通常用于强调已知的事实或已知的原因，"for" 用于表示理由，但不用于句首。只有 "because" 符合表示直接原因的用法。 填空题答案 1. We couldn't go swimming because the river was too dangerous. 2. She went to bed early because she was tired. 3. Because of the rain, we had to cancel the outdoor activity. 改写句子答案 1. He missed the train because of waking up late. 或 He woke up late, so he missed the train. 2. She didn't come to the party because she was ill. 一、基本用法 "Because"是一个从属连词，用于引导原因状语从句，表达主句动作或状态发生的原因。它通常位于主句之后，但也可以放在主句之前，这时会用逗号与主句隔开。 **例句**： * I didn't go to the party because I was tired. （我没去参加派对，因为我累了。） * Because I was tired, I went to bed early. （因为我累了，所以我早睡了。） 二、表示直接原因 "Because"强调直接原因，即导致某个结果或动作发生的直接因素。它通常用于回答以"why"引导的疑问句。 **例句**： * Why are you late? Because I missed the bus. （你为什么迟到了？因为我错过了公交车。） 三、与其他连词的搭配使用 "Because"可以与其他连词搭配使用，以构成更复杂的句子结构。例如，它可以与"so"搭配使用，表示因果关系。 **例句**： * He didn't sleep well because he was sick, so he stayed home. （他生病了，没睡好，所以他待在家里。） 四、与"so"的区别 需要注意的是，"because"和"so"不能同时出现在一个句子中，以避免重复和冗余。如果两个词都出现，需要去掉一个。 **错误例句**：I didn't go to the party because I was tired, so I stayed at home. （错误用法） **正确例句**：I didn't go to the party because I was tired. （正确用法） 五、语气强弱的比较 相比其他表示原因的连词（如"as"和"since"），"because"的语气较强，强调直接和具体的原因。它通常用于需要明确说明原因的情况。 **例句**： * He was late because of the heavy traffic. （他迟到了，因为交通拥堵。） * He was late, as/since the traffic was heavy. （他迟到了，因为交通很拥堵。） 在上述例句中，"because"更强调交通拥堵是导致迟到的直接原因。 总结来说，"because"作为英语中的常见连词，在引导原因状语从句时具有明确的用法和功能。它强调直接原因，通常位于主句之后，并可以与其他连词搭配使用以构成更复杂的句子结构。了解并正确掌握"because"的用法，可以提高英语表达的准确性和流畅性。 选择题 1. I didn't go to the cinema ______ I had a headache. A. so B. but C. because D. and 2. ______ she is very busy, she doesn't have time to go out with us. A. Since B. Although C. Because D. As 3. ______ the weather was bad, we had to stay at home. A. Since B. Because C. As D. For 填空题 1. We couldn't go swimming _______ the river was too dangerous. 2. _______ she was tired, she went to bed early. 3. _______ the rain, we had to cancel the outdoor activity. 改写句子 1. He missed the train because he woke up late. (保持句意不变) ______________________________________________________________ 2. She didn't come to the party. She was ill. (合并为一句话) ______________________________________________________________ 选择题解析 1. 【答案】C 【解析】题干中需要的是表示原因的连词，而 "so" 是表示结果的连词，"but" 表示转折，"and" 表示并列。只有 "because" 符合题意。 2. 【答案】C 【解析】句子中需要表示原因的连词，而 "since" 和 "as" 虽然可以表示原因，但它们更多地用于强调已知的事实或已知的原因。"Although" 是表示让步的连词，不符合句意。因此，正确答案是 "because"。 3. 【答案】B 【解析】句子中需要表示原因的连词，而 "since" 和 "as" 通常用于强调已知的事实或已知的原因，"for" 用于表示理由，但不用于句首。只有 "because" 符合表示直接原因的用法。 填空题答案 1. We couldn't go swimming because the river was too dangerous. 2. She went to bed early because she was tired. 3. Because of the rain, we had to cancel the outdoor activity. 改写句子答案 1. He missed the train because of waking up late. 或 He woke up late, so he missed the train. 2. She didn't come to the party because she was ill. 
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