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 because 除經(jīng)常用于引導(dǎo)原因狀語(yǔ)從句外，還可引出表語(yǔ)從句或用于強(qiáng)調(diào)句等。如：　　

It is because you’re eating too much. 那是因?yàn)槟愠缘锰�多了�?SPAN lang=EN-US>　　

It was because I wanted to buy a dictionary that I went to town yesterday. 我昨天是由于想買本字典而進(jìn)城的。

參考文獻(xiàn)：http://www.hz123456.com/Article/201108/2383.html

because引導(dǎo)的從句是作表語(yǔ)，because 是一個(gè)連接詞，不作成分。意思是 “因?yàn)椤！！?BR>如That he didn't come to school was because he was ill then. 他沒來上學(xué)是因?yàn)樗��?dāng)時(shí)病了