You can go to some ordinary high schools with districts and counties as the unit if you get 500 points in the senior high school entrance examination in the third grade, but you need better grades if you want to enter the key high schools in the city and the key high schools in the province. The following is a detailed explanation:

1. District and county ordinary high schools.

Ordinary high schools in districts and counties are schools run by districts and counties. There is generally no special restriction on the number of people, as long as they sign up. The score of about 500 points can be improved through various basic courses, cram schools and voluntary services in the first three years to the third year, which can be improved to a certain extent.

2. Private high schools.

Similar to public high schools, private high schools are also admitted according to the results of the senior high school entrance examination, and the missed places can be supplemented by separate examinations or interviews. It should be noted that because the enrollment of some private high schools is very limited, it is necessary to know more when choosing and prepare for the exam in advance.

3. Vocational high schools.

Vocational high schools pay attention to training students to become modern workers with certain professional knowledge and skills, so they have low requirements for academic performance. Candidates with about 500 points can still enter vocational high schools, and if necessary, they can improve their level and expand their development space by obtaining some skill certificates.

4. Establish institutions.

Candidates with a score of 500 can also choose to enter architecture colleges, which aim to recruit and train outstanding rural students and provide related courses including preparatory courses, engineering, agriculture and forestry science and technology, where they can gain certain professional knowledge.

5. remedial classes.

It is very necessary for candidates who want to enter key high schools in the city to attend cram schools and remedial classes. Through training, targeted review and test-taking ability training, it may improve the test scores and strive for more admission opportunities.

6. Other ways.

In addition to the above options, sometimes social networks such as resumes and index teachers' letters of recommendation will also become the key factors affecting admission. At the same time, award-winning qualifications, good moral character, and active participation in various scientific and technological cultural competitions will add points to high school admission and retain more opportunities.

In short, with a score of 500, candidates can find opportunities for self-development in ordinary high schools, private high schools, vocational high schools and architectural colleges in the county. At the same time, strengthening one's own basic courses and expanding ability, actively improving academic performance, participating in make-up classes and remedial classes, strengthening social networks, and persisting in various targeted efforts will bring more opportunities to improve the success rate of admission.