The main thing you could do, together with doing as many past papers as possible, to improve both your reading and writing is to read a lot of French. It's as simple as that. READ! However, you should read French that doesn't have wanky language and not many of those simple past tense verbs (you won't be tested on your knowledge of this, unless if you do Extension, but it won't hurt to learn it if you have the time as you will eventually get your head around it when you're fluent in due time. It's a lot of stuff to remember though, and you have to know them all by rote as there is no pattern like the regular verbs for the simple past tenses). The French articles on the French newspaper site 'Le monde' and the French worldwide radio service 'RFI' are perfect sites to read simple, yet elegant French. Read aloud if possible, as it will help you remember the French better.
http://www.lemonde.fr/
http://www.rfi.fr/
Also, get your head around French grammar and French verbs. Read the following books, BUT DO NOT DO THE EXERCISES IN THEM UNLESS IF YOU TRULY DON'T UNDERSTAND THE GRAMMAR (you will be wasting your time if you do so)-
http://www.amazon.com/Ultimate-French-Review-Practice-Communication/dp/0658000748
http://www.amazon.com/Blue-Pocket-B...=sr_1_1?s=books&ie=UTF8&qid=1323136396&sr=1-1
If you're short on money or just frugal, you could obtain a summary of French grammar instead by going to your teacher and asking for one or by photocopying one from a French textbook at your school or local library. I know
Tapis Volant for the HSC has one. I can't recall the exact name of the book, but you should find it.
You could get a French novella to help you. The French novella
Le Petit Prince by Antoine de Saint-Exupéry helped me a lot to improve my French and I treasure that book. The Harry Potter books in French are also good, but they take a while to read and chances are you won't have the time to finish even the 'Prisoner of Azkaban'. Also, at Abbeys Bookstore in the city, there are books of parallel text in French and English. I remember there was
Animal Farm by George Orwell as a book like this. You could get your hand on that and read it. It would help as you could extrapolate the meaning of the French phrase or word that you don't understand from the English translation on the opposite page, which will relieve you from dropping that book and referring to your dictionary every ten seconds.
This advice has probably become galling to everyone, both members and guests, on the French board, but anyway, go to the following site-
http://www.tv5.org/TV5Site/enseigner-apprendre-francais/accueil_apprendre.php
Instructions to use this are in multiple threads on this board. You should find it.
You could get a French pen pal if you have the time or go to a French forum dedicated to a subject that you like and correspond with fellow-minded Francophones there who will not hesitate to help you with your French. Doing this is probably a good idea as it will relieve pressure off your teacher and you will learn some French slang that your teacher probably doesn't know. Also, it will prepare you for writing tests that have an internet forum format. Plus, the French love seeing an Australian post on their boards! Tell me what your interests are and I will try to find a French forum that will be to your liking. The website to find a French pen pal is the following-
http://www.studentsoftheworld.info/menu_friendgroups.php
Immerse yourself in French when you have free time. Watch the French news on SBS, French movies or movies dubbed in French, with the French subtitles on if available, and documentaries on youtube with your dictionary close at hand.
That's about it, I could say.
Good luck with your studies. Study smart, not hard!