In the first paragraph, begin by telling the employer the position you are applying for and how you come to know about the Job.
The second paragraph should respond directly to the job description written by the hiring manager. Describe how your previous job experiences, skills, and abilities will allow you to meet the company’s needs. To make that easier, you can (and should) literally include words and phrases from the job description in your cover letters.
The rest of this paragraph should briefly present basic info about yourself, including: degree, area of study/expertise, and your career goals in terms of how they align with the goals of the company.
It’s always better to use same templates for CV and cover letter. When I was student and searching for job I searched for CV templates but never find same templates for cover letter. Hope this will be helpful for you.