Check out the below mentioned weblinks. These will help you to prepare you for IELTS exams.
http://www.canadavisa.com/ielts/free-practice-tests.html
General English Grammar and Vocabulary Practice
Basic sentence structure. Find out about SIMPLE, COMPOUND and COMPLEX sentences. Do the quiz.
http://www.eslbee.com/sentences.htm.
Lots of general listening practice, including listening for academic purposes.
http://www.esl-lab.com/
General English practice from the BBC, including video-based work
http://www.bbc.co.uk/worldservice/learn...
Grammar practice, vocabulary practice and podcasts to practice listening
http://a4esl.org/
IELTS Practice
The Cambridge ESOL IELTS home page, which links to excellent introductory IELTS resources
http://www.cambridgeesol.org/teach/ielt...
Key administrative information for IELTS candidates.
http://www.ielts.org/
Introductory information and exercises in IELTS listening, reading and writing.
http://www.examenglish.com/IELTS/index.php
Academic module writing assessment and sample scripts (click on bottom link ‘sample scripts').
http://www.cambridgeesol.org/teach/ielts/academ...
General module writing assessment and sample scripts (click on bottom link ‘sample scripts').
http://www.cambridgeesol.org/teach/ielts/genera...
More IELTS writing samples with estimated grades suggested by teachers.
http://www.ielts-blog.com/category/ielts-writi...
A fairly wide range of resources, including writing practice tasks with model answers.
http://www.ielts-exam.net/index.php
Some free IELTS lessons.
http://www.ieltsgym.com/?id=FreeEnglishlessons
regards,
gauri