1、Period Five WritingDescribing a simple scientific experiment本模块的写作是学习描述一次实验报告。如何来设计实验、做实验和写实验报告呢？1此类写作要求从实验的目的、需要的器材、实验的步骤、实验的结果以及实验结论等方面，把实验的整个过程做详尽的叙述，让读者对所涉及的实验有一个完整的了解。2客观描述即可，不用发表个人见解。3时态使用一般现在时；介绍实验目的用不定式；介绍实验步骤用祈使句。4描写实验常用词汇：实验目的：aim， purpose，discover，if， happen，reaction，condition，degree，chan
2、ge，make sure，prove，find out实验器材：bottle，match，clamp(夹子) ，beaker(烧杯)，test tube，alcohol lamp(酒精灯)，thermometer(温度计)实验步骤：tie， mix，add，put，light，keep，watch carefully，leave，heat，put into，give off，keep out of实验结果：burn，violently ， heat，temperature，start，rise，rust实验结论：conclusion，conclude ，in a word，in conclus
3、ion1Below is a description of a simple scientific experiment.2It aims to show us.3To find out if.，we carried out this experiment.4Leave the tube for one week.5Boil the water for three minutes.6Put.at the bottom of the test tube.7Halffill.with.8Put two or three nails in the water.9Add some oil to the
4、 water.10This will keep air out of the water.化学课上学习了关于溶解的知识后，请你根据下表做一个化学实验，比较橘子汁和食用油在水中的溶解情况，然后用英语写一份实验报告，给出结论。实验目的 橘子汁和食用油这两种物质是否溶解于水实验器材 试管、小勺(spoon)实验步骤(1)将水分别注入两个试管中，并确保水位相等；(2)把两种物质分别同时放在装有水的两个试管里；(3)待 5 分钟后观察反应 实验结果 橘子汁溶解了，食用油没有任何反应注意：词数 80 左右。写作要求是写实验报告，写作时应注意下面几点：1确定文体：这是一篇实验报告，一般按照实验步骤和顺序来写
5、。2主体时态：文章应以一般现在时为主。3主体人称：实验报告要求客观描述实验目的、步骤、现象、结论等，不用发表个人见解，所以人称应该以第三人称为主。必备词汇1发现 find out2把倾倒在里面 put/pour.into.3确保 make sure4一勺 a spoonful of5同时 at the same time关键句式1Make sure the water level is equal in each tube.确保两个试管内的水位相等。2Put a spoonful of orange juice into one tube.在一个试管内放入一勺橘子汁。3Put a spoonf
6、ul of oil into the other.在另一个试管内放入一勺油。句式升级根据要求连接句 2 和句 3。1Put a spoonful of orange juice into one tube，and put a spoonful of oil into the other.(用并列句合并)2Put a spoonful of orange juice into one tube.Meanwhile/In the meanwhile，put a spoonful of oil into the other.(用 meanwhile 合并)用适当的过渡词语，把以上词汇和句式，再加上联
7、想内容，组成一篇 80 词左右的英语短文。Aim：To find out whether oil and orange juice dissolve in water or not.Apparatus：test tubes；spoonsMethod：(1)Pour water into two test tubes.Make sure the water level is equal in each tube.(2)Put a spoonful of orange juice into one tube，and put a spoonful of oil into the other at the same time.(3)Leave the tubes for five minutes.Result：Five minutes later，the orange juice has dissolved ，but the oil remains on the surface.Conclusion：Orange juice dissolves in water quickly while oil doesnt.
