Reading is nothing but a time management. Since you have to provide answer of 3 long passages within 60 minutes, you must be conscious about time management. To get a good score, you should have clear idea about reading module. Both academic and general reading modules are almost same. However, there is little difference between academic reading module and general reading module as passages for the general reading module are selected from the financial journal or from some statistics while for academic module the passages are chosen from some journals or from some research papers which are designed more academically.
