UNIT 3 Section Ⅳ Writing an experiment report(学用Word)-【优学精讲】2025-2026学年高中英语必修第三册(外研版)
2026-05-12
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教辅
摘要:
本讲义聚焦高中英语实验报告写作核心知识点,通过“品教材范文—析写作手法—背出彩佳句”的学习支架,系统梳理实验报告“总—分—总”结构,涵盖实验目的、材料、步骤、结论的规范表达,衔接词与强调句等语言技巧,以及从范文分析到实际写作任务的完整训练脉络。
该资料以语言能力培养为核心,通过范文解析(如用衔接词使步骤清晰)和改写练习(定语从句、同位语从句)提升表达准确性,结合“总—分—总”结构培养逻辑思维品质,出彩佳句与词汇积累助力学习能力提升。课中辅助教师引导学生掌握写作方法,课后学生可借助资料复习巩固,弥补语言组织与逻辑表达的薄弱点。
内容正文:
Section Ⅳ Writing an experiment report
【演练佳作·写美文】
写作步骤
二、1.Today we carried out an experiment.Its aim was to find out if there is a change in weight after aluminium is heated.
2.To carry out the experiment,we prepared the following equipment: pieces of aluminium, a Bunsen burner, a balance, a crucible and a pair of tongs.
3.The stages were as follows.
4.First, we put a piece of aluminium in the crucible.
5.Then we put the crucible on the balance and weighed it.
6.After that, we held the crucible with aluminium in it over the Bunsen burner’s flame.
7.Finally, we put the crucible with the aluminium in it on the balance and weighed it again.
8.We found it weighed a little more than before.
9.After the experiment, we drew a conclusion:There is a change in weight after aluminium is heated.
三、10.Today we carried out an experiment,whose aim was to find out if there is a change in weight after aluminium is heated.
11.After the experiment, we drew a conclusion that there is a change in weight after aluminium is heated.
四、
Today we carried out an experiment, whose aim was to find out if there is a change in weight after aluminium is heated.To carry out the experiment, we prepared the following equipment:pieces of aluminium, a Bunsen burner, a balance, a crucible and a pair of tongs.
The stages were as follows.First, we put a piece of aluminium in the crucible.Then we put the crucible on the balance and weighed it.Next,we lighted the Bunsen burner.After that,we held the crucible with aluminium in it over the Bunsen burner’s flame.Finally,we put the crucible with the aluminium in it on the balance and weighed it again.We found it weighed a little more than before.
After the experiment, we drew a conclusion that there is a change in weight after aluminium is heated.
【教材词汇·练续写】
第一步
1.Excited and surprised at the rare species found in the forest,Tim,a biologist,was immersed in shooting pictures of them.
2.It was when his cellphone battery ran out that he realised that he was lost in the forest.
3.Without a compass and a map, he thought he wasn’t capable of walking out.
4.He tripped and injured his leg.
5.After numerous attempts and failures, he saw the flash on the main road.
6.At that moment, he was excited beyond description.
7.“It was significant to take enough stuff for survival,” he said to himself.
第二步
Excited and surprised at the rare species found in the forest, Tim, a biologist, was immersed in shooting pictures of them.It was when his cellphone battery ran out that he realised that he was lost in the forest.Without a compass and a map,he thought he wasn’t capable of walking out.He tripped and injured his leg.After numerous attempts and failures, he saw the flash on the main road.At that moment, he was excited beyond description.“It was significant to take enough stuff for survival,” he said to himself.
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Section Ⅳ Writing an experiment report
Step 1|品教材范文
The experiment is designed to prove whether air pressure really exists.
At the beginning of the experiment, I prepared the materials, including a boiled egg, a glass bottle whose neck is a bit smaller than the egg and some hot water.With all the things prepared, the experiment began.
First, I removed the shell of the egg.Then, I carefully poured some hot water into the bottle, and shook the bottle gently.After a few minutes, I poured out the hot water.Just at the same time, I quickly placed the egg on top of the bottle.To my amazement, the egg squeezed into the bottle at once.
After the experiment, I can draw the conclusion that air pressure indeed exists, and it is very powerful.It is the force of the air that pushed the egg into the bottle.
Step 2|析写作手法
学语言
首段中使用动词短语be designed to,表明了实验目的。
第二段中使用介词including,列举了实验所准备的材料。使用with复合结构,对做实验前的准备工作做了总结。
第三段中使用first, then, after a few minutes, just at the same time,使实验步骤一目了然。
尾段中使用强调句,突出实验所得出的结论。
学结构
本文使用了“总—分—总”结构,开头部分介绍实验的目的;主体部分描述实验中使用的材料并解释实验步骤;结尾部分为结论,报告实验结果以及你所学到的东西。
Step 3|背出彩佳句
1.描写实验目的
(1)...carry out an experiment to find out ...
(2)The aim of the experiment is to find ...
(3)...with the purpose of discovering ...
2.描写实验器材
(1)To carry out/do/perform the experiment, you need ...
(2)The following things are needed ...
(3)The following apparatus is used ...
3.描写实验方法或步骤
(1)...make good preparations for ...
(2)It is important that ...
(3)...do the experiment as follows.
(firstly, secondly, thirdly, finally; first, then, next, after that, two hours later, after several days)
(4)find a better way of doing ...
(5)...make a good study of ...
4.描写实验结果和结论
(1)From this experiment we can conclude ...
(2)...draw/come to the conclusion that ...
(3)We can learn from the experiment that ...
(4)We can find out that ...
(5)You can see/discover ...
(6)In conclusion ...
假定你是李华,请你根据下面表格中的内容写一篇实验报告。
实验目的
查明铝(aluminium)在空气中加热后重量是否会发生变化
实验器材
铝片,本生灯(Bunsen burner),天平,坩埚(crucible),坩埚钳(tongs)
实验步骤
(1)把铝片放在坩埚里,然后放在天平上称重;
(2)点燃本生灯,将盛有铝片的坩埚移到本生灯上,加热三分钟;
(3)再称坩埚和铝片的重量
实验结果
比加热前略重些
实验结论
铝在空气中加热后,重量会发生变化
注意:(1)写作词数应为80个左右;
(2)可以适当增加细节,以使行文连贯。
一、审题谋篇,结构分明
二、要点陈述,语言规范
1.我们今天做了一个实验。实验的目的是查明铝加热后重量是否有变化。
2.为了进行实验,我们准备了以下器材:铝片、本生灯、天平、坩埚和坩埚钳。
3.步骤如下。
4.首先,我们把一片铝放在坩埚里。
5.然后我们把坩埚放在天平上称了称。
6.在那之后,我们把盛着铝的坩埚放在本生灯火焰上。
7.最后,我们把坩埚和里面的铝放在天平上,再称一称。
8.我们发现它比之前重了一点。
9.实验过后,我们得出结论:铝加热后重量有变化。
三、句间衔接,过渡自然
10.用定语从句改写句1。
11.用同位语从句改写句9。
四、检查誊写,卷面整洁
词汇
佳句
人物描写
capable adj.有能力的
never say never 别轻易说决不
brilliant adj.聪颖的,才华横溢的
biologist n.生物学家
①Dr. Smith, a brilliant biologist, always says, “Never say never.” His passion for science inspires everyone around him. (人物描写)
史密斯博士是一位才华横溢的生物学家,他总是说:“别轻易说决不。”他对科学的热爱激励着身边的每一个人。
②He raised the kite with a piece of string tied to it. A metal key was attached to the string. A flash of lightning hit the kite, and electricity was conducted through the string to the key. Franklin then touched the key with his finger and got an electric shock. (动作描写)
他在风筝上系了一根细绳,把风筝放上天,细绳上绑着一把金属钥匙。闪电击中风筝,电流通过绳子传导到钥匙上,富兰克林随即用手指触碰钥匙,感受到了电击。
动作描写
shoot v.射出(光线等),放射;拍摄
injure v.使受伤,弄伤
attach v.系,绑;贴
touch v.触摸,碰;接触
环境描写
species n.物种
battery n.电池
compass n.指南针,罗盘
flash n.闪光
stuff n.东西,物品
情境导语:生物学家蒂姆在森林里惊喜地发现了罕见物种,正沉浸在拍照中,等手机没电了才惊觉自己已迷失在森林,身上没带指南针和地图,还不小心绊倒摔伤了腿,多次尝试走出森林均失败,就在这时……
第一步:完成句子雏形现
1.生物学家蒂姆对在森林中发现的稀有物种感到兴奋和惊讶,他沉浸于拍摄它们的照片中。
2.当他的手机电池没电时,他才意识到自己在森林中迷路了。
3.没有指南针和地图,他以为自己不能走出去。
4.他被绊倒了,弄伤了腿。
5.经过无数次的尝试和失败,他看到了主干道上的闪光。
6.在那一刻,他激动得无法形容。
7.他自言自语地说:“为了求生带足物品是很重要的。”
第二步:过渡衔接连成篇
提示:完成课后作业 UNIT 3 Section Ⅳ
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