Can I get extra points for volunteering for the senior high school entrance examination in Huizhou?

No extra points. The senior high school entrance examination is called the junior high school academic level examination, which is a horizontal examination to test whether junior high school students reach the junior high school academic level. The scope of bonus points does not include volunteering, which is the same all over the country, including Huizhou. The examination subjects are all included in the scope of the junior high school level examination.