david_ye

i have a problem , when i listen to the middle listening resource ,i can catch most of it ,but when it come to the step by step 2000(3), i found it is very difficult to understand or  catch accurately the meaning of every words. maybe i am not very familar with the words and the expressions . could you give me some advices or suggestions ?
By the way , somebody know a good way to review the english grammars? Recently i found that i can hardly remember the contents  of grammars when i do the reading comprehensions , it is really awkward,can somebody help me ?
thanks a lot .