你好！
  我是内地大一的学生。去年，我参加了高考，但却失利了。半年的大学生活让我越来越感到高考失败的惨痛，我很苦恼，但却无法自拔。我不希望因为一次高考影响了一生前途。
  而香港大学一直是我向往的高等学府.我是想请教，对于我这样的学生，是否可以参加港大的某种考试，有机会申请??

please refer to 

www.hku.hk/cao/

to find some information suit to your case. Maybe HKU is very hard for students in your situation to apply, but just try to wirte eamils or even make phone calls if necessary.
Never give up & enjoy your study now.
Remember that all roads lead to Rome ^^
Hope to see you in HKU.

never forget your dream ! 
never give up !
never lose the inspire
to be a real man . a steel man

I am a student who want to enter the Univercity of Hong Kong.
Seeing all above I felt quiet nervous even though I try to encourage myself.
I hope I can come over all the hardship and entrance the univercity successfully.
And I do hope every one can make their dreams come true!.

From： sally-飘零