Hi Angel,
Firstly, my computer doesn't type Chinese. So, I hope someone can translate this for me (does the "No typing in Chinese" rule apply here?)
Back to topic, I would suggest any beginner to start practicing on the two easier skills of any language: listening and speaking.
Try watching English TV programs (e.g. BBC world news, NBC etc. preferably formal programs.) or listening to the radio (ICRT is a good bet).
Here's the key point:
Speak out loud along with what they say as often as you can. Follow only one person at a time. i.e. if there are two voices, choose only one of them to follow.
Don't worry if you cannot comprehend what they say at the start. As you learn more from you English class (vocabulary and grammar), you will start to understand bit by bit on the content of the media.
The reason for copycating what they say is to help you:
1: to have a native accent.
2: to get used to English expressions and correct grammatical use of English.
Depending on your progress, later on in your use of English, you will be able to speak and write English with the correct grammar without even contemplating what tense or what grammar rule to use.
At that point, beacause of your practice of reading out loud, sentences will sound weird to you if it has incorrect grammar.
Also, find opportunities to chat with native speakers. Hopefully, your lecturer at university is native or close to native. In Autralia, there're always international students posting up in BBS for Language Exchanges. Language Exchange is a common way of learning by having native speakers from each country (e.g. English and Mandarin), chatting to each other. This will help the English learn Mandarin and the Mandarin learn English.
The more you try to interact in English and being in an native English environment, the easier it is for you to master the language.
Lastly, practice makes perfect and
don't be shy. If it is in your interest, come and join clubs like Happy English Club, Toastmasters and your university's English Clubs etc. These are all very good environments for you to practice English.
For example, Happy English Club: The people here are way too friendly
. The members there look out for each other like best of friends. It's the perfect environment to practice English and make friends that have common interests (interest = English, of course).
Sorry for such a long reply, and I didn't proof read what I wrote. I hope it will makes sense to everyone reading this.
cheers,
Darren