I will arrive Hangzhou airport at 10pm++ and will take a train to Shanghai on the next day.

Hi, you can find Honglou Hotel, Hanting Express Hotel and Zhejiang Railway Hotel within walking distance from HZ Railway Station. You are suggested to stay for a night in one of them. Upon landing, you can take airport shuttle bus to the train station directly and then check in. In the next morning, directly walk to the train station to catch your train then.

Thank you Nelly. I do not speak Mandarin. Can i survive travelling in CHina - I mean to speak to taxi driver, hotel assistant etc?. Thank you.

Yes, you can. To take a taxi, you can show the Chinese characters to the driver to get to your destination. If there is any difficulty, ask people around (especially young people), they may speak English to help you out. And if you have more detailed questions, find solutions on TCG, which is most helpful.