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1、A lesson in a labModule5 Learning Aims1)1)Learn some new words and Learn some new words and phrases about sciencephrases about science2 2）learn some knowledge about learn some knowledge about sciencescience3 3）To improve ssTo improve ssreading reading skillskill4)Learn to write a science 4)Learn to
2、write a science reportreport1.What can you see in the picture? 2.What other words can you think of when you look at the picture? science -scientific experiment apparatusequipmentBunsen burnerBunsen burnertest tubetest tubetube holdertube holdertongs balancecrucible beaker烧杯烧杯 & glass rod玻棒玻棒Watch &
3、saymetal:potassium钾钾burnreact with cold water form (new substance) GW: Match names of metals to picturespopotatassiumssiumsodiumsodiumcalciumcalciummagmagnenesiumsiumalualumiminiumniumzinczincironironcoppercopper1.Fast-reading Qs:1.What should we know when we use metals?It is important toIt is impor
4、tant to know how they react with know how they react withdifferent different substances. . Passages A2.Here is a table with the metals that react most 2.Here is a table with the metals that react most at the top,and react least at the bottom.at the top,and react least at the bottom.MetalHeated in ox
5、ygenReaction with water and steampotassiumBurns to form an oxideReacting with cold watersodiumcalciummagnesiumReacting with steamaluminiumzincironReacts slowlyPartial reaction copperPartial reaction No reacton3.Practice：Ask and answer in pairs 1.Which metal reacts the most with oxygen and water?2.Wh
6、at happens when you heat calcium in oxygen?3.Which metals react with steam?4.Does iron have a slow or fast reaction with steam?5.Does copper react with water?Potassium.Potassium.It burns to form an oxide.It burns to form an oxide.Magnesium, Magnesium, aluminium,zincaluminium,zincSlow.Slow.No, it doe
7、snt.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 ChineseHere is a
8、 table with metals that reactmost at the top, and the metals that react least at the bottom4.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.体验高考体验高考Answer the questions according to the Passages A1.For what purpos
9、e does the author show the table (within 10 words)To show how different metals reactwith 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 import
10、ant toknow how they react with different substances.Here is a table with metals that reactmost at the top, and the metals that react least at the bottom.这里有一个表格这里有一个表格, 反应强的金属在上反应强的金属在上面面, 反应弱的在下面。反应弱的在下面。3.Translate the following sentence into Chinese.4.Choose the best title for the passage.1. The
11、Different Uses of Metals2. The Reaction of Metals3. The Reaction of Metals with OxygenPut these words in the correct order to describe the stages of a scientific experimentConclusion aim result method aimaimMethod Method Result Result conclusionconclusionconclusion, method, result, aim, apparatus An
12、 Experiment Report1. _:2. _:3. _: (1) (2) (3)4. _:5. _:AimAimApparatusApparatusMethodMethodResultResultConclusionConclusionPassage BTask: Write an experiment reportCan we put iron nails in wet air?Can we put iron nails in wet air?rustrust1.ScanningRight or wrong.1.Iron rusts easily in dry air.2.To m
13、ake sure theres no air in the water, you have to boil the water for 3 minutes.3.We dont know whether iron rusts in ordinary water.F FT TF F 2.Detailed-reading1. Fill in the form on P45.2. Jigsaw reading & Fill & ActAim ApparatusMethodResultConclusionTo find out if.To find out if.Iron nails, test tub
14、es, oil, tube holders,Iron nails, test tubes, oil, tube holders, cotton wool, Bunsen burner cotton wool, Bunsen burner(3) half-fill.with, add, leave.for(3) half-fill.with, add, leave.forAfter a week, rustAfter a week, rust( not ) rust in( not ) rust in(1) put.at the bottom of; push.down(1) put.at th
15、e bottom of; push.down leave.for leave.for(2) half-fill.with., boil, put, add.to,(2) half-fill.with., boil, put, add.to, keep.out of, leave.for keep.out of, leave.for3.Jigsaw （线索）（线索）reading & Fill & say4.Complete the sentences using what we learntIn the first part of the experiment, the _ is dry. I
16、t 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.airairdoesnt rustdoesnt rustbo
17、ilboilmake suremake sureAddingAddingkeepkeepnailsnailsair-freeair-freehalf-fillhalf-fillordinaryordinary5.DiscussionDo 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 points1.react with sth. 化学反应化学反应 to sth. 反
18、应反应 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 按顺序排列按顺序排列 in order of 按按的顺序排列的顺序排列 in order to do sth. 为了做某事为了做某事3. 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 wh
19、en and where the meeting will be held. 4.add to 把把 加入加入 add to 增加增加 add up 加起来加起来 add up to 总计是总计是5.think 短语小结短语小结:think aboutthink overthink of asthink outthink highly/much ofthink lightly/little of考虑考虑仔细考虑仔细考虑把把看作看作想出来想出来, 想清楚想清楚看重看重轻视轻视_ and youll have a good idea.A. think it over B. think over i
20、tC. thinking of it D. if you think about it 6.leave1.1. 他把衣服忘在操场上了。他把衣服忘在操场上了。He left his clothes on the playground.2.Who left the door _(开开/关关)? Who left the lights _(亮着亮着)? open / closed on3. Leave the girl where she is.4. Just leave the engine _(run).runningHomework Homework : : write a simple ex
21、periment report about about potassium reacts with cold waterpotassium reacts with cold waterAim ApparatusMethodResultConclusionto find out if potassium reacts with cold water.to find out if potassium reacts with cold water.a breaker, cold water, a spoon, a breaker, cold water, a spoon, potassiumpota
22、ssium(1)Half-fill the container with cold water.Half-fill the container with cold water.(2) Put a spoonful of potassium into(2) Put a spoonful of potassium into the water. the water.The potassium burns.The potassium burns.Potassium reacts with cold water.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
