2014年秋高中英语 Module 5 A Lesson in a Lab(第三课时)课件 外研版必修.ppt
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1、Module 5 A Lesson in a Lab,2019/9/10,To know some metals and their reactions with some substances To learn how to do an experiment To be able to retell the main points in the text To build up the love for science,Goals,2019/9/10,potassium,sodium,calcium,magnesium,aluminium,zinc,iron,copper,2019/9/10
2、,1.The Different Uses of Metals 2.The Reaction of Metals 3.The Reaction of Metals with Oxygen,Choose the best title for Passage A.,Scanning,2019/9/10,Read Passage A again and answer the questions,Which metals react the most with oxygen and water? What happens when you heat calcium in oxygen? Which m
3、etals react with steam? 4. Does iron have a slow or fast reaction with steam? 5. Does copper react with water?,Potassium,sodium and calsium.,It burns to form an oxide.,Magnesium,aluminium,and zinc.,Slow.,No, it doesnt.,Do you think it is scientificto make Goujian Sword by using copper,After learning
4、 Passage A,?,What can we learn from Passage A? It is very important to know_ _. It is very useful in our daily life.,Harvest,metals can react with different substances,how,?,aim,result,conclusion,method,apparatus,How many stages are there in a scientific experiment report,Fast reading,Passage B,2019
5、/9/10,cotton wool,nails, _,_,_,_,_,ordinary water,rusty nails,oil,water,Keep the nails dry,Keep air out of the water,Air in the water,nails,2019/9/10,Conclusion,Iron rusts in_. Iron doesnt rust in _ and_,ordinary water,dry air,air-free water .,2019/9/10,half-fill with,boil ,put in,add to ,leave ,res
6、ult,Observe the following experiment carefully and then write down an experiment report,to find out if potassium reacts with cold water.,a container, cold water, potassium, filter paper(滤纸), a pair of tweezers(镊子),(1)Half-fill the container with cold water. (2)Take a piece of potassium out of the oi
7、l. (3)Dry the potasium with the paper. (4)Put the potassium into the water.,The potassium burns.,Potassium reacts with cold water.,An Experimennt Report,2019/9/10,Sum up,How can you do a scientific experiment successfully? First, we need to have an_ and prepare _ for the experiment before we do the
8、experiment. Second, we must use correct_to do the experiment and watch carefully. Then we can get the_and draw a_.,aim,apparatus,methods,result,conclusion,.短语运用 be proud of,used to,aimed at,add up to, keep out of,put.in order,keep ones balance,think of,react with,be supposed to 1.In nature,many kind
9、s of materials can each other under certain conditions. 2.You ask the teacher if you want to leave the classroom. 3.He lifted his gun and the bird in the tree.,react with,are supposed to,aimed at,4.All the money I had no more than one hundered dollars. 5.When I saw these photos,I my college days. 6.
10、Try to the trouble between them. 7.Books should again after you have finished reading them.,added up to,thought of,keep out of,be put in order,8.I struggled to on my new skates. 9.All the Chinese the success of Shenzhou . 10.Life now is much better than it be.,keep my balance,are proud of,used to,.翻
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