与语数外相比高考理综的特点有二:一是内容多、时间紧、分值高,二是存在学科间的转换。建议第Ⅰ卷用时约40分钟,第Ⅱ卷用时约90分钟,留约20分钟机动时间。答卷时审题是形成正确解题思路的关键。审题时一要审关键的字,如“是”、“不是”、“正确”、“不正确”、“常温常压”、“标准状 Comparing with the number of languages, there are two characteristics of high school entrance examination: first, content, time is tight, score is high, and second, there is interdisciplinary transformation. It is recommended that Volume I take about 40 minutes, Volume II takes about 90 minutes and leave about 20 minutes for maneuver. Question answering questions when the problem is to form the correct solution to the problem of thinking the key. When the trial examines a key word, such as ”is “, ”not “, ”correct “, ”incorrect “, ”normal temperature and pressure “, ”standard