because of 与 just because　　

　　1 . because of 因为。如：

　　He lost his job because of his age. 由于年龄关系他失去了他的工作。

　　He left the company because of what the boss said at the meeting. 他离开了这家公司，是因为老板在会上讲的话。

　　注：because of 之后可接 what 从句，但不能接 that从句或没有引导词的句子。如：

　　他因病未来。

　　误：He didnt come because of he was ill.

　　误：He didnt come because of that he was ill.

　　正：He didnt come because he was ill.

　　正：He didnt come because of his illness.

　　2 . just because 只因为，就因为，虽然但。如：

　　Just because I dont complain, people think Im satisfied. 只是我没有发牢骚，人们就认为我心满意足了。

　　Just because they make more money than I do they think theyre superior. 就因为他们挣钱比我多，他们就认为他们在高人一等。

　　注：有时可引出一个名词性从句。如：

　　Just because Im married doesnt mean that I dont want to see my old friends anymore. 虽然我结婚了，但这并不意味着我就不再想见老朋友了。