Unit 3 Section Ⅳ Writing-(配套教参)【精讲精练】2025-2026学年高中英语必修第三册(外研版)

本讲义聚焦高中英语实验报告写作核心知识点，系统梳理实验报告的五大结构（目的、用品、方法过程、结果、结论），提供常用句型支架（如开头、主体、结论句式），并结合“点不着的纸”实验实例，通过审题构思、句式升级（如定语从句、同位语从句改写）搭建完整写作路径。 该资料以任务驱动为特色，融合语言能力（句型运用与句式优化）和思维品质（逻辑顺序梳理与结论推导），通过具体实验步骤解析和范文示范，课中辅助教师高效开展写作教学，课后助力学生自主掌握报告结构与表达规范，有效提升英语书面表达的准确性与逻辑性。

Unit 3　Section Ⅳ　Writing [对应学生用书P69] 实验报告 完成一个实验的步骤有设计实验、做实验和写实验报告。写实验报告时，要注意完整介绍实验过程，用恰当的表示顺序的词语来清楚地表述实验步骤。句式多为祈使句，时态多为一般现在时。实验报告通常包括以下内容： 1．实验目的：表明为什么要做这个实验。 2．实验用品：交代做实验要用的物品。 3．实验方法和过程：清楚、具体地写明实验步骤。在组织文字时，要正确运用表示顺序的词。 4．实验结果：如实且正确地记录实验现象或数据。 5．结论：通过实验得出相关的结论。 实验报告开头部分 ①This experiment is designed to... ②With the purpose of discovering... ③The aim of the experiment is to find out... ④To find out...，we carried out this experiment. 实验报告主体部 ①I prepared...to do this experiment. ②make good preparations for... ③do the experiment as follows. ④The following things are needed... ⑤To perform/conduct the experiment，you need the following things... 实验报告结论部分 ①After the experiment，I can draw the conclusion that... ②From this experiment we can conclude... ③We can learn from the experiment... ④Through the experiment，you can further learn about the theory that... ⑤The result of the experiment shows that... ⑥In conclusion，from what happened in the experiment we can say... 请根据以下内容，写一篇实验报告，介绍“点不着的纸”整个实验的内容。 实验名称 点不着的纸 实验器材 铜棒(copper rod)，两张相同的长条白纸，火柴 实验步骤 (1)用火柴直接点燃其中的一张纸条； (2)将另一张纸条先紧紧缠绕在铜棒上，再去点燃 实验现象 (1)前一张纸条迅速燃烧； (2)后一张纸条没有燃烧 实验结论 因为铜具有良好的导热性，这使得纸条点不着 [审题构思] 体裁 说明文 人称 第一人称 时态 一般现在时 内容 首段：介绍实验目的； 中段：描述实验所需材料及解释实验过程； 尾段：报告结果或结论 1．那天，我做了一个家庭小实验，这个实验旨在证明“点不着的纸”是否真的存在。 I did a little home experiment the other day.It was designed to find out if “unlit paper” really exists. 2．我准备了一根铜棒，两张相同的长条白纸及火柴来做这个实验。 I prepared a copper rod，two identical strips of white paper and matches to do this experiment． 3．实验过程如下：首先，用火柴点燃其中的一张纸条。其次，将另一张纸条先紧紧缠绕在铜棒上，再去点燃。 Experimental procedures are below：First，light one of the slips by a match.Then，wrap another slip of paper tightly around the copper rod before lighting the paper. 4．结果，前一张纸条迅速燃烧而后一张纸条没有燃烧。 As a result，the first one burned quickly but the second one did not. 5．在这个实验后，我得出了一个结论。因为铜具有良好的导热性，使纸条无法燃烧。 After this experiment，I came to a conclusion．Because copper has good thermal conductivity，the paper doesn't burn. [句式升级] 6．用定语从句改写第二步中的句1 I did a little home experiment the other day，which was designed to find out if “unlit paper” really exists. 7．用同位语从句改写第二步中的句5 After this experiment，I came to a conclusion that because copper has good thermal conductivity，the paper doesn't burn. [连句成篇] One possible version： Unlit Paper I did a little home experiment the other day，which was designed to find out if “unlit paper” really exists. I prepared a copper rod，two identical strips of white paper and matches to do this experiment.And the experimental procedures are below：First，light one of the slips by a match.Then，wrap another slip of paper tightly around the copper rod before lighting the paper.As a result，the first one burned quickly but the second one did not. After this experiment，I came to a conclusion that because copper has good thermal conductivity，the paper doesn't burn. 学科网（北京）股份有限公司 $