Default need sd 2 internal solution or how to instal apk directly into internal sd ?

I have Ainol Novo 7 Tornados which has 1Gb internal storage and 8gb internal SD

some heavy games apk are like upto 600 to 700mb and hard to install it in 1gb internal storage. I wanted to know is there any solution that I can instal apk directly into sd card or internal 8gb sd folder ?
or
is it posible to switch my internal SD into internal storage ? so I can able to instal big size apk

I'll be so thankful If you help me out with this issue

thanks again and take care