for、because .because of .since 表原因的区别?

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for、because.becauseof.since表原因的区别?for、because.becauseof.since表原因的区别?for、because.becauseof.since表原因的区

for、because .because of .since 表原因的区别?
for、because .because of .since 表原因的区别?

for、because .because of .since 表原因的区别?
I went back not because of the rain,but because I was tired.
because of
是最好区分的,词性与其他三个有些不同,只能跟名词或名词短语.
because是连词,所以后边跟句子 ,因果关系比较强,能用来回答“why”
for
1.介词,(表示原因)因为,由于,作为…的结果
I'm pretty angry with you for not telling me.
由于你没有告诉我,我对你很生气.
2.连词,因为,由于
Prepare to alight,for we are almost there.
我们马上要到了,准备下车吧.
since
因为; 既然; 由于,一般用于句首
Since it is late I shall go home now.
由于时间晚了,我现在要回家了.