1. Reasonable allocation of time: science is integrated into three disciplines, which is allocated according to the score. Biology takes 30 to 35 minutes to complete, chemistry takes 50 to 55 minutes to complete, physics takes 1 hour to complete, and the rest is mobile time, which is the most reasonable arrangement.

2、答题顺序，按照自己擅长科目答题，先做各科简单题，再做难的科目，但是尽量不要分科答题。

2. In the order of answering questions, according to the subjects they are good at, first do simple questions in various subjects, and then do difficult subjects, but try not to answer questions in different subjects.

3、速度不宜过快，对于没有把握的题随时标记，以后复查，审题要细，对于选项是定还是否要有根据，充分利用单选的特点，用好排除法和推理法。选择题做完后，对部分试题要进行复查。由于开考时心理因素的影响，前三题往往错误率较高，必须复查，其他加标记要复查的题。

3. The speed should not be too fast. Mark the uncertain questions at any time. Review the questions carefully in the future. There should be a basis for whether the options are determined or not. Make full use of the characteristics of single choice and make good use of exclusion and reasoning. After the multiple-choice questions are finished, some of the test questions should be rechecked. Due to the influence of psychological factors at the beginning of the exam, the error rate of the first three questions is often high, so they must be rechecked, and other marked questions to be rechecked.

4、认真阅卷，要看见和看懂每一句话，关键的每一处提示，可做简单的勾画，仔细审题时，要通过观察、对比、分析、推理、综合，弄清试题的考查意图。书写要规范，表达要清楚。

4. Read the paper carefully. You should see and understand every sentence and every key hint. You can make a simple sketch. When carefully examining the questions, you should clarify the examination intention of the questions through observation, comparison, analysis, reasoning and synthesis. The writing should be standardized and the expression should be clear.

5、理综试题，文字描述的可能是一个复杂的运动过程，它可以分成几个不同的阶段，每个阶段中可能有题中所给的已知量，也可能隐藏在题中未给的量或通过作图来描绘情景。

5. The text description of the comprehensive test question may be a complex movement process, which can be divided into several different stages. In each stage, there may be the known quantity given in the question, or the quantity not given in the question may be hidden, or the scene may be depicted by drawing.