where can I download some excellent grasshopper model

I'm a chinese architecture student and I learned grasshopper all by myself, I wanna learn more about grasshopper from this webside,but maybe you don't know, in china the Youtobe isn't available, so it is impossible for me to learn grasshopper by the video of this webside, the only way I could enjoy is learn from grasshopper model, but I can't find where I can download the model,who can tell me where I can download the grasshopper model, Thank you.