1、P5 Listening and Writing,Module 5 A Lesson in a Lab,Listening,Listen and complete the description of the scientific experiment.,Aim: _ _ Apparatus: _ _ Method: _ _ Result: _ Conclusion: _ _,to find out if theres a change in weight when magnesium burns in air,First, put the magnesium in the crucible.
2、 Then put the crucible on the balance and weigh it. Next, heat the magnesium. Light the Bunsen burner and hold the crucible over it. Finally, weigh the magnesium.,It weighs a little more than before.,There is a change in weight when magnesium burns in air.,Magnesium, Bunsen burner, a balance, a cruc
3、ible,You will hear a conversation in which a teacher helps a student do an experiment.,Mr C=Mr Chen, ZK=Zhou Kai, LK=Li Kang Mr C: OK, boys and girls, were going to do an experiment. Come _ _ closer. _ _ you are, _ _ youll see! Thats right!Now, whats the aim of this experiment, Zhou Kai?,The closer,
4、a bit,the more,Listen again and fill in the blanks.,Z.K: We want to _ _ if theres a change in weight when magnesium burns _ _. Mr C: Thats right. So what do we _?ZK: Um We need some magnesium.How much do we need? Whatabout this piece? Is this piece OK?,need,first,find out,in air,Mr C: No, we need _
5、more than thatabout two and a half grams. We need a piece which is _ _ than that. ZK: OK And we need a _ _ _ and _ to put the metal in Here they all are Where do we_ _ _?,rather,bigger,much,bunsen,burner,a balance,crucible,a,go from here,Mr C: Well, _, put the magnesium in the crucible. _ put the cr
6、ucible on the balance and weigh it. ZK: OK Mr C: How much does it _? Take a look, everyone. Is it any heavier?ZK: Um It weighs _ _ _ _ grams. Do you want me to write that down?,first,Then,two and a half,weigh,Mr C: Yes, write it down. _ _?ZK: Yes Um, next, were going toheat the magnesium. So I light
7、 the Bunsen burner. _ _, I hold the crucible over it Oh look,its burning with a white light! Itsgetting _ _ _! Mr C: Its pretty, isnt? _ _ _, boys and girls, please.,What next,After that,brighter and brighter,Keep the noise,down,ZK: Um_, we need to weigh the magnesium again It weighs four grams now.
8、 Mr C: So what does that tell you?ZK: It weighs _ _ more thanbefore. Mr C: How much more?ZK: _ grams more. Mr C: And what does that mean?,1.5,a little,lastly,ZK: It means that there is _ _ in weight when magnesiumburns in air. Mr C: _ _ _! Well done! So now,lets do the same experiment withcopper. _
9、_. Li Kang,_ _ _ now. What do youthink will happen if you _? LK: I think itll be a lot heavier than magnesium. Shall I begin? Mr C: Yes, _ _!,a change,Youve got it,Come along,its your turn,heat,copper,go ahead,Writing,GUIDED WRITING,【写作任务】 本次写作任务是写一堂实验课或与实验相关的文章。 【写作内容】 以下是一堂化学小实验的相关信息。请用英语写一篇短文，简要描
10、述这次实验。,注意： 1. 词数：100左右；2. 可适当增加细节，以使行文连贯; 3. 参考词汇：洗衣粉 washing powder; 动手能力 hands-on ability,【写作步骤】 一、词语储备 A: conclusion, dissolve, scientific, happen, float, experiment, purpose, mix, mixture, pour, shake, description, enrich, develop B: 1. addto 往加入 2. find out 弄清楚 3. draw a conclusion 得出结论 4. leav
11、e sth aside 静置 5. in my view 依我之见 6. not onlybut also 不但而且,二、备用句型罗列 1. 下面是一个简单小实验的描述，目的是观察油和水能否混合。 Below is a description of a simple experiment, designed to see whether oil and water will mix. _ _ _ (使用whose引导的定语从句),Below is a description of a simple experiment, whose purpose is to see whether oil
12、and water will mix.,2. 向一个小玻璃瓶中倒入半瓶清水，再加入一些植物油，发现油漂浮在水面上。 Pouring some water and some vegetable oil into a small glass bottle, we can see the oil floating on the water. _ _ _ (使用祈使句+ and+一般陈述句),Pour some water and some vegetable oil into a small glass bottle and we can see the oil floating on the wa
13、ter.,3. 用手摇晃玻璃瓶，静置一会儿，油和水仍旧不能混合。 Shake the glass bottle and leave it aside for a while. But it turns out that oil and water still dont mix. _ _ _ (使用after + doing结构),After shaking the glass bottle and leaving it aside for a while, we can find out oil and water still dont mix.,4. 再往小玻璃瓶里加一点洗衣粉，然后充分摇晃
14、瓶子，再观察发现油和水混合在一起了。 Add some washing powder to the glass bottle and shake it fully and we can see a surprising thing that oil and water mix together. _ _ _ _ (使用after + which的定语从句),Add some washing powder to the bottle and then shake it fully, after which we can see a surprising thing that oil and wa
15、ter mix together.,5. 我们得出结论：放入洗衣粉后油和水能够混合。 We can draw a conclusion that oil and water will mix together after washing powder is put into them. _ _ _ (使用宾语从句),We can conclude that oil and water will mix together after washing powder is put into them.,6. 做实验能培养我们的动手能力，而且还能丰富我们的科学知识。 Not only can doin
16、g experiments develop our hands-on ability but also enrich our knowledge. _ _ _ (使用并列句),Doing experiments can develop our hands-on ability but also it can enrich our knowledge.,三、 统筹安排 Outline of the text: Paragraph 1: To bring in the experiment Paragraph 2: To describe the experiment in detail Para
17、graph 3: To state your opinion of doing experiments,四、扩充要点, 连词成句。 任务A：从文中括号内选择适当的词填入空格； 任务B：将下列选项填入文中适当的位置。 oil and water mix together oil and water still dont mix shake the glass bottle and leave it aside for a while develop our hands-on ability,Below is a description of a simple experiment, _ (who
18、se/which) purpose is to find out whether oil and water will mix.First, pour some water into a small glass bottle and add some vegetable oil. As we can see, the oil floats on the water. Second,_. But it turns out that _. Next, add some washing powder to the glass bottle and shake it fully, after _ (w
19、hich/what) we can see a surprising thing that _. Finally, we can draw a conclusion that oil and water will mix together with washing powder _(mixed/mixing) with them.In my view, doing experiments can not only _but also enrich our scientific knowledge.,whose,which,mixed,Homework,1. Do the listening exercises in Learning English. 2. Finish the exercises on Page 46&47.,
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