In the work summary part, you can write about your work in the first half of the year and evaluate your performance, and then make a summary. The summary can include the skills and experience you have learned, the deficiencies you are aware of, and so on.
In the part of work plan, first of all, from the self, put forward your own work plan in different aspects, and also make suggestions to departments or companies as appropriate.
After thinking about the above parts, you can use the PPT template you downloaded from the website to supplement the content in the template, and you can get a PPT about the work summary and work plan for the first half of the year.