18 is the age when senior three finishes the college entrance examination. Usually you go to school at the age of six and graduate from high school at the age of eighteen. I think everyone's reading age is a little different, and some people go to school early. Some people 17. 18 years old, in senior two. Generally speaking, I was 18 years old in senior three.

Courses offered in high schools:

There are many courses offered in high school, but only 6 courses were tested in the college entrance examination. Let's talk about the subjects in the college entrance examination, which are divided into liberal arts and sciences provinces. Liberal arts students take foreign languages and literature, among which mathematics takes literature, and literature includes politics, history and geography. Science students test words and comprehensive theory, among which mathematics tests rational numbers, and comprehensive theory includes materialization and biology.

After the implementation of the new college entrance examination, the subjects of the college entrance examination will become three plus three, and the number of languages will be a compulsory subject. The other three subjects can choose one of the six elective subjects as the college entrance examination subject, and the other three subjects should also be tested, but they are not included in the total score of the college entrance examination, which belongs to the qualified examination and is linked to the graduation certificate.

In addition to the above nine courses, high schools will also offer some other courses, which vary from high school to high school, such as sports, music, art, computer and so on. However, they are usually offered in Grade One and Grade Two, and there are few such courses in Grade Three, which will delay the study time.