There is a saying in junior high school that "one mold of gold, two molds of silver, and three molds are not as good as iron." The reason why the first model test of senior high school entrance examination is so important is that it can first let candidates know their general ranking in the city according to their first model test results, have a clear understanding and positioning of themselves, and play a guiding role in filling in their volunteers. On the other hand, the pre-admission for the senior high school entrance examination in some schools will start after the first model examination, and some students will sign contracts before the second model examination. Therefore, the results of the first model test have become a stepping stone for candidates to pre-enroll in prestigious schools. Under normal circumstances, the scope of the one-mode examination in the senior high school entrance examination is not as wide as that in the senior high school entrance examination. All subjects are selected from the scope of the senior high school entrance examination. The test questions are modeled as much as possible after those in the senior high school entrance examination in previous years, but the overall difficulty will be above the senior high school entrance examination.