1、如何写实验报告实验报告属于说明文，主要用来说明实验的目的、过程以及实验的结果。全文可以分为三个部分，首先说明实验的目的和实验所需要的实验器材；然后说明实验所采用的方法，实验具体过程以及实验所得到的结果；最后根据实验的情况得出相应的结论。句式要多用祈使句，时态多为一般现在时。基本框架1开头(beginning)交代实验的目的和所需器材2主体(body)介绍实验方法、过程及结果3结尾(ending)写出实验结论常用词块1make good preparations for the experiment为实验做好充分准备2do the experiment as follows按照如下做实验3fin
2、d a better way of doing it找到一个更好的方式来做它4be under observation正在观察中5make a good study做好充分研究常用语句精彩开头1We carry out the experiment to find out why it rusts.我们做实验是为了查明它为什么会生锈。2The aim of the experiment is to find the cause of giving away the gas.实验的目的是找到气体泄露的原因。3With the purpose of discovering how it react
3、s with acid，we carry out the experiment.为了发现它是怎么和酸发生反应的，我们进行了这次实验。 正文佳句1Before we started，we prepared a candle，a glass，a basin and some water.开始之前，我们准备了一支蜡烛，一个玻璃杯，一个盆子还有一些水。2The glass must be a little higher than the candle so that we can see the result more easily.玻璃杯必须比蜡烛稍高一点儿，以便于我们能够更容易看清结果。3We w
4、ere astonished to see that the water level in the glass was higher than that in the basin.我们很吃惊地发现玻璃杯里的水位高于盆子中的水位。余味结尾1We had an interesting experiment lesson.我们上了一堂非常有意义的实验课。2We were greatly impressed with the process of burning.我们对燃烧的过程印象非常深刻。3The experiment introduced us to a useful way of explor
5、ing the unknown field.这次实验为我们介绍了一种探索未知领域的有用的方式。请根据以下内容写一篇实验报告。实验目的：测量镁在空气中加热后重量是否有变化实验用品：镁(magnesium)，本生灯(Bunsen burner)，天平(balance)，坩埚(crucible)实验步骤：1.把镁放进坩埚内；2.把坩埚放在天平上称重；3.点燃本生灯，加热坩埚；再把坩埚放在天平上称重；5.比较两次称重的结果。试验结果：第二次称重数据大于第一次称重的数据实验结论：镁在空气中加热后重量有变化【学生习作】Aim：find out if theres a change in weight af
6、ter magnesium is heated in air.Things to use：magnesium, a Bunsen burner, a balance and a crucible.Process：First，put the magnesium in the crucible. And weigh them.Next，light the Bunsen burner and place the crucible over it to heat the magnesium.Finally, weigh them again, and compare the two weights.R
7、esult：a little heavier than before.Conclusion：There is a change in weight after magnesium is heated in air.点评1.要点不够齐全，不符合实验报告的严谨性原则。2.实验目的、实验用品和实验步骤单列条目，未能形成报告的形式。【升格作文】The aim of the experiment is to find out if theres a change in weight after magnesium is heated in air.To carry out the experiment,
8、 you need the following things: magnesium, a Bunsen burner, a balance and a crucible. When all these are ready, you can begin the experiment.First, put the magnesium in the crucible. Then put the crucible on the balance and weigh them. Next, light the Bunsen burner and place the crucible over it to
9、heat the magnesium. Finally, weigh them again, and compare the two weights.You can see the magnesium weighs a little heavier than before. Thats because there is a change in weight after magnesium is heated in air.请根据下列内容，写一篇短文，说明整个实验的内容。实验目的：不打烂鸡蛋取走蛋壳。实验器材：一个玻璃杯，一个小锅，水，一个鸡蛋，醋(vinegar)约250毫升实验步骤： 1把鸡
10、蛋放在锅中煮十五分钟左右； 2把煮熟的鸡蛋放到玻璃杯中；3往玻璃杯中倒醋，醋要漫过鸡蛋； 4让鸡蛋在醋中浸泡24小时。实验结果：24小时后，鸡蛋壳完全消失。实验结论：醋中的酸性物质(acid)与蛋壳中的碳酸钙(calcium carbonate)反应生成二氧化碳(carbon dioxide)蛋壳(shell)消失。 【参考范文】The aim of the experiment is to move the shell from an egg without breaking the egg.To carry out the experiment, you need the followin
11、g things: a glass，a small pot/boiler, some water, an egg and about 250 ml vinegar.When all these things are ready, you can begin the experiment.First, boil the egg for about 15 minutes in a pot filled with water.Next, place the egg in the glass and cover it with vinegar.After that，leave the egg in vinegar for 24 hours.24 hours later, you can see the shell disappear completely.The egg shell disappears because it is made up of calcium carbonate while the vinegar is an acid.The two substances react to form the gas, carbon dioxide.