How do I write the first email to a professor that may accept me as his graduate student?

Thanks to my teacher so I hope that I like

Keep it short and sweet.  Attach a CV, transcript, and a paper you've done.  Say that you're planning to submit an application.  Have one additional sentence explaining why you're a good fit that is laser targeted on that faculty member.  This sentence shows that you're not spamming people and you thought carefully about why you're a good fit for this faculty.The important thing is the application that you'll soon submit.  The e-mail is to make sure that the professor looks at that application.