❶(なぜなら)（～が）～だから, （～が）～なので
He is absent because he is ill.
♔基本He is absent because he is ill.
彼は病気なので欠席しています.
⦣ 文＋because＋文.
She married him because she loved him.
She married him because she loved him.
彼女は彼と結婚けっこんした.（なぜなら）彼女は彼を愛していたから（です）.
Because I was very busy, I didn't go there.
Because I was very busy, I didn't go there.
私はとても忙いそがしかったのでそこへ行かなかった.
＊会話＊
Why are you so happy?—Because I passed the exam.
君はなぜそんなにうれしいのですか.—試験に受かったからです.
❷否定文の後で（～が）～だからといって（～ではない）
You should not be proud because you are rich.
You should not be proud because you are rich.
君は金持ちだからといってうぬぼれてはいけない.
She didn't marry Jim because she loved him. She married him for his money.
She didn't marry Jim because she loved him. She married him for his money.
彼女はジムを愛するがゆえに彼と結婚したのではない. 彼女は彼の金目当てに結婚したのだ.
⦣ 初めの文のdidn'tはmarryを否定するのではなく, She married Jim because ～ （彼女はジムを愛していたからジムと結婚した）という文全体を否定する.
