Classes of Adjective(形容词)
1. Syntactic Function of Adjectives (形容词的句法功能)
2. Adjective + Preposition (形容词+介词)
3. Adjective + To-Verb (形容词+动词不定式)
4. Be + Adjective + That-Clause (形容词+从句)
5. The Comparative and Superlative Degrees of Adjectives (形容词的比较级和最高级)