状语从句是中考必考的语法热点,按其意义和作用可以分为时间、地点、条件、原因、目的、结果、让步、比较状语从句等。因作用的不同,各自所用的引导词也有所不同,详见下表:除了上表中的内容,时间状语从句作为初中阶段最为常见的一种,还需注意以下一些内容:1)when、as、while都 Adverbial clauses are the grammatical hotspots of the exams in the exam. According to their meanings and effects, they can be divided into time, place, condition, reason, purpose, result, concession, and comparative adverbial clause. Because of the different roles, the guide words used by each person are different. See the following table: In addition to the contents in the above table, the time adverbial clause is the most common type of junior high school. Note the following: 1) when, as , while