well,it's very kind of you.I will make it.

I think this is a question better answered by your teacher. There are huge cultural differences between the US and China, so she needs to clarify what she means by "write an article like an American".

Maybe you can write about guns and big cars and suing people :-) Just kidding!

I found some info about European vs USA and Asian style: http://writers.stackexchange.com/questions/12828/whats-the-difference-between-the-american-and-the-european-style-in-essay-writi / http://academia.stackexchange.com/questions/26751/do-asian-authors-have-a-different-style-of-academic-writing-from-european-author

Thanks for your reply.Actually,I want to know how to write an article in an American way.I am waiting for your idea.

I think that the answer is writing English articles in correct way.

Writing English articles needs follow English grammars. 

Do you think so?