"I am used to describe things use some simple or familiar words to build a sentence,and I think it`s a bad habit,although I have remembered some new words on purpose, but between the conversation，all the new words just disappeared from my mind，I just can not handled them."

That's the case in any language. When people leave school/college, they stop learning, Native speakers have a base upon which they can build so it's easier to, say, learn new words from a list. But unless there is a process of active learning and studying, foreign and native spakers alike wil stop advancing past a certain point. To speak freely and incorporate newly acquired knowledge into your dialogue, you simply have to find more opportunites for speaking. Of course, you should never abandon studying the language. Make your notes and charts, but don't worry. It's not normal to learn ten words daily. Slow it down, learn ten on paper but focus on using one word or phrase per day. Think of a child who is growing up. He can understand many things but does he talk like an adult? No. It takes a long time for one's speech to develop, even a longer time to improve your speech once it has already developed.

"are there many differences between the real dialogues and the moive dialogues?or just because my English is on a lower level,can you guys give some suggestions or some solutions?thank you."

-Sometimes. It depends on the movie. Sometimes I have to use subtitles to understand 100% of the dialogue because a poor job is done with sound editing.

I highly suggest that you watch English films in the original. Without subtitles the first time, Then with subtitles if need be, and afterwards, see it again without. Subtitles are false friends. We hear it, we see the word and everything makes perfect sense. But this is not passive learning through associating the spoken with the scripted. Subtitles actually make you understand less because, simply put, your brain stops searching for right answer. If you can't discern words in a dialogue, you should only use subtitles as a last resort, after you've tried to piece things together. Try this method, it really does work.

In general real life conversations are easier because most people you speak to will use direct body language that you can see, and most people will change the vocabulary they use to make it understandable for you. Memorising words does work for some people, and not for others. Perhaps you're the type of person who needs to practice, practice, practice speaking?

Two Questions

I have been studying English formally for five months, but still and yet when I use English to talk with people use English, I am used to describing things using some simple or familiar words to build a sentence, and I think it`s a bad habit. Although I have remembered memorised some new words on purpose, but between in a the conversation, all the new words just disappeared from my mind. I just can not handled remember them. [what is the question?]

And there is I have another question. I found that when I talk with someone face to face, I can mainly understand what does he or she means, but when I see a movie or a teleplay TV program/serial, I am so easy to get into confusion easily confused. Are there many differences between the real dialogues and the moive dialogues? Or is it just because my English is on at a lower level? Can you guys give some suggestions or some solutions?

Thank you.

Two questions

I have been studying English formally for five months. Still when I talk with people use in English,I am used to describe things using some simple or familiar words to build a sentence. ,and I think it's a bad habit. Although I have remembered learned some new words on purpose, but between the conversations，all the new words just disappear from my mind，I just can not handled remember them.
and there is another question,I found find that when I talk with someone face to face,I can mainly understand what does he or she means,but when I see a movie or a teleplay,I am so easy to get easily into confused. Are there many differences between the real dialogues and the moive dialogues? Or is it just because my English is on a lower level? Can you guys give some suggestions or some solutions?thank you.

I think your difficulties are shared by all new language learners. I have the same problems with French, which I have just begun studying.

It certainly depends on the movie, but in general, I don't think there is much difference between real dialogue and conversations heard in a film. Good luck, keep the faith!