Unit 3 The world of science 第4课时Writing 实验报告（教师版）-【帮课堂】2022-2023学年高一同步讲义（外研版2019必修第三册）.docx

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1、2019外研版必修三Unit 3 The world of science3.4 Writing 实验报告四%学习内容写一篇实验报告实验报告是把实验目的、方法、过程、结果等记录下来，经过整理写成的书面汇总材料。 实验报告要明确体现实验目的、步骤和结果，对具体实验现象的描述要客观准确，分析要 全面具体，语言要简洁质朴、通俗易懂。常用句式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 .

2、描写实验用品：(l)To carry out/make/do/perform the experiment, you need.(2)The following things are needed.(3)The following apparatus is used.3 .描写实验方法或过程：(1) . make good preparations for.(2)It is important that.(3). do the experiment as follows.(firstly, secondly, thirdly, finally; first, then, next, after

3、 that, two hours9 later; after several days) (4)find a better way of doing(5). make a good study of.4.描写实验结论：(l)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.Conclus

4、ion : Magnesium, a lively metal, can react with air. In addition, after burning, it can form a kind of new substance called magnesium oxide.Exercise 2假如今天在物理老师的帮助下，你们做了一个有趣的实验。请根据以下实验步骤，用英 语写一篇100词左右的短文。1 .准备一支蜡烛，一个比蜡烛稍高些的玻璃杯、一个盆和一些水。2 .将蜡烛置于盆底，并向盆中倒入一些水；3 .点燃蜡烛，将玻璃杯罩在蜡烛上；4 .当蜡烛熄灭后，看到玻璃杯中水面高于盆中水面。参考

5、词汇：盆basin【审题谋篇】第一步明确要求本文为应用文，要求描写一个物理实验。第二步确定段落Part 1 实验准备Part 2 实验步骤Part 3 实验结果第三步词汇热身1 .在的帮助下 w汕the help of2.3.4.5.6.7.做实验准备在的底部点燃蜡烛用盖住 充满8. 熄灭carry out an experiment prepareat the bottom oflight the candle cover.with.be full ofgo out9 .使某人惊讶的是 to ones astonishment第四步句式升级1 .开始之前，我们准备了一支蜡烛、一个玻璃杯、一个

6、盆子和一些水。玻璃杯要比蜡烛高一（一般表达）Before we started, we prepared a candle, a glass, a basin and some water.The glass must be a little higher than the candle.（句式升级）Before we started, we prepared a candle, a glass that/which must be a little higher than the candle, a basin and some water.（定语从句）2 .我们吃惊地发现玻璃杯内的水位高于

7、盆里的水位Q（一般表达）We were astonished to see that the water level in the glass was higher than that in the basin.（句式升级）To our astonishment, we saw that the water level in the glass was higher than that in the basin.（to ones astonishment）3 .我们上了一堂多么有趣的实验课啊！（一般表达）We had an interesting experiment lesson.（句式升级

8、 1）What an interesting experiment lesson we had!（what感叹句）（句式升级 2）How interesting an experiment lesson we had!（how感叹句）【连句成篇】Today, with the help of our physics teacher, we carried out an interesting experiment in class.Before we started, we prepared a candle, a glass that must be a little higher than

9、 the candle, a basin and some water.First, we let the candle stand at the bottom of the basin and poured some water into the basin.Then we lit the candle and covered it with the glass that was full of air.We waited until the candle went out.To our astonishment, we saw that the water level in the gla

10、ss was higher than that in the basin.How interesting an experiment lesson we had!町:知识精讲写作指导【文体指导】本模块要求是根据内容提示写一篇实验报告。写作时应注意以下几点：1 .实验报告属于应用文。2 .写作内容一般包括五个方面：Aim实验目的；Apparatus实验器材一；Method实验步骤； Result实验结果；Conclusion实验结论。3 .句式以祈使句为主，时态以一般现在时为主。【常用句式】1. Below is a description of a simple scientific expe

11、riment.2. It aims to show us.3. To find out if., we carried out this experiment.4. Leave the tube for one week.5. . Boil the water for three minutes.6. Put.at the bottom of the test tube.7. Half-fillwith8. Put two or three nails in the water.9. Add some oil to the water.10. This will keep air out of

12、 the water.【写作积累】（一）增色词汇1 .实验 目 的：aim, goal, purpose, prove, phenomenon, whether, in the hope of, in order to , carry out an experiment2 .实验步骤： firstly, secondly, thirdly, then, react, prepare, besides, finally, whats more, in addition, as follows, at last, last bust not least, pay attention to, wat

13、ch carefully, take note of.3 .实验结论： data, show, conclude, draw/reach a conclusion, in conclusion, to sum up, in a word, on the whole, all in all, in other words（二）精彩句型1. To find out if/whether., we carried out this experiment.2. With the purpose of., we are going to carry out an experiment.3. Throug

14、h the experiment, you can further learn about the theory of.4. The result of the experiment shows.5. In conclusion, from what happened in the experiment, we can say. 写作题目假定你是李华，你校英文报最近开创了一个叫做“Interesting Experiment”的新栏目，现在 面向全体学生征集稿件。下表中罗列了你在化学课上刚刚做过的实验内容，请你写一份英文 实验报告向校英文报投稿。实验目的验证蛋壳在醋中是否会溶解实验用具水，碗，

15、小勺，鸡蛋，醋实验步骤1 .将带壳的生鸡蛋在清水中洗干净2 .将鸡蛋放入准备好的碗中3 .在碗中加入足够量的醋4 .静置两天实验结果蛋壳在醋中溶解参考词汇：生的raw蛋壳eggshell溶解 dissolve 碳酸钙 calcium carbonate注意：1.词数80左右2.可以适当增加细节，以使行文连贯。(1) experiment(2) Procedure Entirely(4) In other words换句话说思路点拨:主题蛋壳在醋中是否会溶解体裁说明文人称二，三人称时态一般现在时态布局1 .实验目的2 .实验用具3 .实验步骤4 .实验结果遣词造句1 .词汇和短语n.实验n.步骤

16、adv.完全地，彻底地Prepare v.准备(6) Dissolve 溶解Contain 包含(8) Break down 分解2.完成句子(1)把鸡蛋放在事先准备好的碗里。(2)它必须足够大，能放下鸡蛋和醋。(3)蛋壳完全溶解在醋里。(4)那是因为醋里含有酸。(5)它能分解蛋壳中的主要成分碳酸钙。答案：1, Put the egg in the prepared bowl.2, It must be big enough to hold the egg and vinegar.3, Eggshells dissolve entirely in vinegar.4, Thats becaus

17、e vinegar contains acid.5, It breaks down the calcium carbonate that is the main ingredient off eggshells.3.句式升级（6）用含有定语从句的句子合并句（1）和句（2）用含有定语从句的句子合并句（4）和句（5）答案：6, Put the egg in the prepared bowl, which must be big enough to hold the egg and vinegar.7, Thafs because vinegar contains acid, which brea

18、ks down the calcium carbonate that is the main ingredient off eggshells.连句成篇参考范文Aim：Do an experiment to find out whether/if the eggshells dissolve in vinegar.Materials: water, a bowl, a spoon, an egg, vinegarProcedure:1. Wash a raw egg with shell in the water.2. Put the egg in the prepared bowl, whi

19、ch must be big enough to hold the egg an vinegar.3. Add enough vinegar with the spoon to cover the egg.4. Cover the bowl, put it on the table, and then keep the egg in vinegar for 48 hours.Result：The eggshells dissolve. In other words, the eggshells disappear in vinegar.Conclusion: Eggshells dissolv

20、e entirely in vinegar. Thats because vinegar contains acid, which breaks down the calcium carbonate that is the main ingredient of eggshells. 写作积累 （三）增色词汇5. 实验 目 的：aim, goal, purpose, prove, phenomenon, whether, in the hope of, in order to , carry out an experiment6. 实验步骤： firstly, secondly, thirdly

21、, then, react, prepare, besides, finally, what飞 more, in addition, as follows, at last, last bust not least, pay attention to, watch carefully, take note of.7. 实验结论：data, show, conclude, draw/reach a conclusion, in conclusion, to sum up, in a word,on the whole, all in all, in other words （四）精彩句型6. T

22、o find out if/whether., we carried out this experiment.7. With the purpose of., we are going to carry out an experiment.8. Through the experiment, you can further learn about the theory of.9. The result of the experiment shows.10. In conclusion, from what happened in the experiment, we can say.实战应用化

23、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，然后用英语写一份词数80左右的实验报告，给出结论。实验目的观察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)实验方法1 .将水分别注入两个试管中，并确保水位相 等；2 .把两种物质分别放在装有水的两个试管 中；3. 5分钟后观察反应实验结果橘子汁溶解(dissolve) 了，食用油没有任何反 应注意：1.词数80左右2.可以适当增加细节，以使行文连贯。审题谋篇项目结论体裁说明文话题实验报告时态一般现在时人称第三人称词句准备1 .词汇实验的 目 的the aim/the pur

24、pose of the experiment查明find out把倒入pour.into.相等的equal同时at the sametime五分钟后five minuteslater2 .句式五分钟后，橘子汁已经溶解了，但食用油仍保留在表面上。普通表达： After five minutes, the orange juice has dissolved, but the oil remains on the surface.高级表达：（用高级词汇later, however改写上面的句子）【答案】Five minutes later, the orange juice has dissolv

25、ed. However, the oil remains on the surface.橘子汁很快溶解了，食用油没有任何反应。普通表达： Orange juice dissolves in water quickly. Oil is hard to dissolve in water.高级表达:（用while把上面的句子改写成并列句）_答案 Orange juice dissolves in water quickly while oil is hard to dissolve in water.课堂练笔【参考范文】Aim: To find out whether orange juice a

26、nd oil dissolve in water.Apparatus: test tubes; spoonsMethod: Pour water into two test tubes. Make sure the water level is equal in either tube. Put a spoonful of orange juice into one tube, and a spoonful of oil into the other. Put them into the tubes at the same time; leave the tubes for five minu

27、tes.Result: Five minutes later, the orange juice has dissolved. However, the oil remains on the surface.Conclusion: Orange juice dissolves in water quickly while oil is hard to dissolve in water.施巩固练习Exercise 1假定你是某国际学校的学生，在今天的化学课上，老师做了镁在空气中燃烧的实验，并 要求每人在课后为这次实验写一篇英文实验报告。请根据表格中的内容完成这篇报告。实验目的验证镁是否会和空气

28、发生反应实验用具钳子，本生灯，火柴，镁条实验步骤1 .用火柴点燃本生灯2 .用钳子夹住镁条3 .将镁条置于本生灯上方，观察现象实验现象镁条剧烈燃烧，发出耀眼的白光，放热，并生成白色的粉末实验结论镁会和空气发生反应本生灯 Bunsen burner参考词汇：镁条：magnesium bar 钳子tongs 注意：1.词数80左右2,可以适当增加细节，以使行文连贯。参考范文：Aim：Find out whether the magnesium reacts with air.Materials: a pair of tongs, a Bunsen burner, a box of matches,

29、 a magnesium barProcedure:1. Light the Bunsen burner with a match2. Use the tongs to hold the magnesium bar prepared in advance.3. Hang the magnesium bar over the Bunsen burner to see what will happen.Phenomenon:The magnesium bar releases strong white lights and heat, forming a small amount white powder.