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A lesson in a lab,Module5,Learning Aims,Learn some new words and phrases about science 2）learn some knowledge about science 3）To improve ssreading skill 4)Learn to write a science report,1.What can you see in the picture? 2.What other words can you think of when you look at the picture?,science -scientific experiment,apparatus equipment,Bunsen burner,test tube,tube holder,tongs balance,crucible beaker烧杯 & glass rod玻棒,Watch & say,metal: potassium钾,burn react with cold water form (new substance),GW: Match names of metals to pictures,potassium,sodium,calcium,magnesium,aluminium,zinc,iron,copper,1.Fast-reading,Qs: What should we know when we use metals?,It is important to know how they react with different substances.,Passages A,2.Here is a table with the metals that react most at the top,and react least at the bottom.,3.Practice：Ask and answer in pairs,Which metal reacts the most with oxygen and water? What happens when you heat calcium in oxygen? Which metals react with steam? Does iron have a slow or fast reaction with steam? Does copper react with water?,Potassium.,It burns to form an oxide.,Magnesium, aluminium,zinc,Slow.,No, it doesnt.,1.For what purpose does the author show the table (within 10 words) 2.Which sentence in Passage A can be replaced by the following one? Using metals, we should know how the metals change when theyre mixed with other substances. 3.Translate the following sentence into Chinese Here is a table with metals that react most at the top, and the metals that react least at the bottom 4.Choose the best title for the passage. A The Different Uses of Metals B The Reaction of Metals C The Reaction of Metals with Oxygen,4.体验高考Answer the questions according to the Passages A,1.For what purpose does the author show the table (within 10 words),To show how different metals react with different substances.,2.Which sentence in Passage A can be replaced by the following one? Using metals, we should know how the metals change when theyre mixed with other substances.,When we use metals, it is important to know how they react with different substances.,Here is a table with metals that react most at the top, and the metals that react least at the bottom.,这里有一个表格, 反应强的金属在上面, 反应弱的在下面。,3.Translate the following sentence into Chinese.,4.Choose the best title for the passage. The Different Uses of Metals The Reaction of Metals The Reaction of Metals with Oxygen,Put these words in the correct order to describe the stages of a scientific experiment,Conclusion aim result method,aim,Method,Result,conclusion,conclusion, method, result, aim, apparatus,An Experiment Report 1. _: 2. _: 3. _: (1) (2) (3) 4. _: 5. _:,Aim,Apparatus,Method,Result,Conclusion,Passage B Task: Write an experiment report,Can we put iron nails in wet air?,rust,1.Scanning,Right or wrong. Iron rusts easily in dry air. To make sure theres no air in the water, you have to boil the water for 3 minutes. We dont know whether iron rusts in ordinary water.,F,T,F,2.Detailed-reading,1. Fill in the form on P45. 2. Jigsaw reading & Fill & Act,To find out if.,Iron nails, test tubes, oil, tube holders, cotton wool, Bunsen burner,(3) half-fill.with, add, leave.for,After a week, rust,( not ) rust in,(1) put.at the bottom of; push.down leave.for,(2) half-fill.with., boil, put, add.to, keep.out of, leave.for,3.Jigsaw （线索）reading & Fill & say,4.Complete the sentences using what we learnt,In the first part of the experiment, the _ is dry. It shows that iron _ in dry air. In the second part, you must _ the water to _ _ that there is no air in it. _ some oil to the water can _ the air out of it. It shows that _ dont rust in _ water. In the third part, _ the tube with water. It shows that they rust in _ water.,air,doesnt rust,boil,make sure,Adding,keep,nails,air-free,half-fill,ordinary,5.Discussion,Do you like doing scientific experiments? What should you pay attention to （注意）when you are carrying out an experiment（做实验） in a lab?,6Language points,react with sth. 化学反应 to sth. 反应 eg. An acid can react with a base to form a salt. How did your mother react to the news?,2.put sth. in order 按顺序排列 in order of 按的顺序排列 in order to do sth. 为了做某事 at the top of at the bottom of ,3.make sure of sth. that clause eg. I made sure of his arrival. Youd better make sure when and where the meeting will be held. 4.add to 把 加入 add to 增加 add up 加起来 add up to 总计是,5.think 短语小结:,think about think over think of as think out think highly/much of think lightly/little of,考虑,仔细考虑,把看作,想出来, 想清楚,看重,轻视,_ and youll have a good idea. think it over B. think over it C. thinking of it D. if you think about it,6.leave,1. 他把衣服忘在操场上了。,He left his clothes on the playground.,2.Who left the door _(开/关)? Who left the lights _(亮着)?,open / closed,on,3. Leave the girl where she is.,4. Just leave the engine _(run).,running,Homework : write a simple experiment report about potassium reacts with cold water,to find out if potassium reacts with cold water.,a breaker, cold water, a spoon, potassium,Half-fill the container with cold water.,(2) Put a spoonful of potassium into the water.,The potassium burns.,Potassium reacts with cold water.,Thank you very much! Bye-bye,同学们,来学校和回家的路上要注意安全,同学们,来学校和回家的路上要注意安全,同学们,来学校和回家的路上要注意安全,同学们,来学校和回家的路上要注意安全,
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