because & because of 不同的“原因”

1. because conj. （引导原因状语从句）

He didnt go to school yesterday because he was ill. 他昨天没去学校，因为他病了。

He is called Mitch， because his name is Mitchell. 人们叫他米奇，因为他名叫米切尔。

2. because of prep.

Shes worried because of her son. 她因为她的儿子而担心。

He is here because of you / that. 他为你/那事而来这里。

I would like to do everything for you because of loving you. 因为我爱你，我愿意为你做任何事。

It is because of his help that you can enter the university. 这是因为他的帮助，你才能够上大学。

3. because还可以回答why引导的句子。

—Why do you like pandas？ 你为什么喜欢熊猫？

—Because they are cute. 因为它们很可爱。

【注】 because和so不能一起连用，二者只能用其一。

【典型例题】

1. I didnt go to the party not ____ the weather， but ____ I didnt feel well.

A. because of； because B. because； because of

C. because； because D. because of； because of

【答案】 A

【解析】 句意：我没有去参加这个聚会不是因为天气，而是因为我的身体感觉不舒服。分析because of和because的区别：because of视为一个介词，其后跟名词、代词或动名词（短语）；而because是一个连词，后面引导一个成分完整的原因状语从句（有自己的主谓宾语等）。根据本句：the weather就是一个名词“天气”，所以用介词短语because of；I didnt feel well就是一个完整的句子，所以用连词because。故选A。

2. Tony didnt come to school last week ____ he was ill. And ____ his illness he missed a lot of lessons.

A. because； because B. because of； because of

C. because； because of D. because of； because

【答案】 C

【解析】 句意：Tony上周没有来上学，因为他生病了。并且因为他的病，他落下了很多课。because是一个连词，后面引导原因状语从句；because of后跟名词、动名词或名词性从句。根据它们的用法可知选C。