Zhongkao - independent subject foundations

This independent study page provides practice for Zhongkao - independent subject foundations. Its editorial learning areas include Lower-secondary number, algebra, geometry and data; English grammar, contextual language and reading evidence; Mechanics, fields, thermal behavior, waves and modern models; Chemical structure, reactions and organic models; Biological organization, inheritance, regulation and ecosystems; Scientific questions, evidence and quantitative reasoning. The questions develop subject knowledge and application through worked reasoning, distinctions between competing answers, and practical scenarios. Study the relevant guide before attempting a mixed set, then explain the evidence or calculation that supports each answer. Review the wrong alternatives to identify a misunderstood concept, a missed condition, or a unit error. Some foundational practice is shared with related qualifications where the subject matter overlaps. This does not make their official syllabuses, administrative rules, assessment formats, or difficulty identical. The cases and reference material support application rather than a claim to reproduce an official examination. Check the current official requirements for the intended qualification and use appropriate applied practice and feedback. Unverified administrative particulars remain unspecified, and the study allocations are editorial. Independent school-subject foundations with editorial study allocations. The actual mapped mathematics, science, language, textual, geographic or economic concepts are represented, but pathways and subjects differ across countries. English teaching or English inherited questions are not represented as equivalent to full native-language examination performance. Current local civics, legal institutions, national administrative counts, mandatory set texts and the exact current official syllabus or difficulty calibration remain gaps unless explicitly verified. No foreign national civic system is substituted. Lower-secondary number, algebra, geometry and scientific reasoning are kept separate from upper-secondary calculus and professional technical banks. Arabic or Chinese extended writing and complete native-literature coverage remain named gaps; retained Chinese questions are actual Chinese source text, not invented translations.