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1 # lilyzhang1988
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2 # 美美的小妮
原因狀語從句是由“because, as, since, for”引導的,用來說明主句所表達的情況或事實的原因,其中because 和 since 主要用於正面原因,as 和 for 則主要用於負面原因。它與主句之間一般是邏輯上的因果關係。
一、because/since/as/for引導的原因狀語從句
1、because/since/as/for + 從句
例句:
①Because the weather was bad, we didn't go out.
②Since he was ill, he didn't go to school.
③As the exam was approaching , she felt nervous.
④For the food was too expensive, few people bought it.
2、because/since/as/for + 主語 + 動詞
例句:
①Because of the bad weather, we had to change our plan.
②Since he was ill, he had to stay at home.
③As the exam was coming, she was studying very hard.
④For the food was too expensive, no one bought it.
二、because/since/as/for 的區別
1、because 和 since 用來引導原因狀語從句,表示“由於,因為”,意義相近,但是 because 引導的從句可以放在主句前,而 since 引導的從句要放在主句後。
2、as 和 for 用來引導原因狀語從句,表示“由於,因為”的意義,主要用於表示負面的原因。但是 as 引導的從句可以放在主句前,而 for 引導的從句要放在主句後。
回覆列表
原因狀語從句用於行為、事物、現象等的原因。
原因狀語從句介紹了一個行為、事物、現象等的原因,並一般位於一個句子的前面。
它由連詞“因為”、“由於”、“既然”、“由此可見”等開頭,表達一個因果關係,即主句所說的內容是由從句所述的原因所導致的。
原因狀語從句可以有多種形式,如單句、並列、複雜、省略等。
應當注意邏輯關系的準確把握,不能隨意使用原因狀語從句。
同時,原因狀語從句也可以和條件狀語從句一起使用,形成複合句,增加表達的準確性和複雜度。