怎么辨別因?yàn)槭墙樵~還是連詞

because是介詞時(shí)后接名詞或名詞詞組，because是連詞時(shí)接一個(gè)完整的句子。如Because of the rain,the sports meeting has been put off. Because it rains,the sports meeting has been put off.

because的用法

（1）because的基本意思是“因?yàn)椤?，?qiáng)調(diào)直接造成某種結(jié)果的理由和原因，所引導(dǎo)的原因狀語從句多置于主句之后，有時(shí)為了強(qiáng)調(diào)，也可置于主句之前，并用逗號(hào)與句子的其他部分隔開。

（2）because還可用來引導(dǎo)讓步狀語從句，這時(shí)，通常用于否定句或疑問句中。

（3）because有時(shí)還可引導(dǎo)表語從句。

because和because of的用法區(qū)別

一般句型結(jié)構(gòu)為：

1.句子+because+句子

2.because+句子+句子

3.because of+名詞/代詞

從以上句型結(jié)構(gòu)可以看出，Because是連詞，連接兩個(gè)句子，如：

1.I was worried because Mary was late.我很著急因?yàn)楝旣愡t到了。

2.Because I was tired,I went home.因?yàn)槲液芾?，我回家了?/p>

Because of是復(fù)合介詞，其后接名詞、代詞、動(dòng)名詞、what從句等。如：

I was late because of the rain.我因?yàn)橄掠赀t到了。

Because of之后可接 what 從句，但不能接that從句或沒有引導(dǎo)詞的句子。如：

He left the company because of what the boss said at the meeting.

他離開了這家公司，因?yàn)槔习逶跁?huì)上講的話。

He didn't come because of his illness.他因病沒有來。