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外研版必修1高中英语 Module 5 A lesson in a lab-reading课件 外研版必修1

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   Module5Module5  
AA  lessonlesson  inin  aa  lablab
   Learning Aims
1)Learn some new words and phrases  
 about science
2)learn some knowledge about 
 science
3)To improve ss’reading 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? BunsenBunsen  burnerburner
                                 testtest  tubetube
                                 tubetube  holderholder


•  science
   -scientific         apparatus
   experiment          equipment
   
   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


alualumiminiumnium ironiron zinczinc popotatassiumssium
coppercopper calciumcalcium sodiumsodium magmagnenesiumsium
Passages1.Fast-reading A         

  • Qs:
  vWhat should we know when we use 
   metals?ItIt  isis  importantimportant  toto  knowknow  howhow  theythey  reactreact  withwith
    differentdifferent  substancessubstances..  
2.Here2.Here  isis  aa  tabletable  withwith  thethe  metalsmetals  thatthat  reactreact  mostmost  
atat  thethe  top,andtop,and  reactreact  leastleast  atat  thethe  bottom.bottom.
Metal       Heated in oxygen Reaction with water 
                             and steam

potassium
sodium                       Reacting with  
calcium                      cold   water
            Burns to form  an 
magnesium   oxide            Reacting  with 
aluminium                    steam
zinc
iron        Reacts slowly    Partial  reaction 

copper      Partial reaction No reacton
   3.Practice:Ask and 
       answer in pairs 
vWhich metal reacts the most with oxygen 
 and water? Potassium.Potassium.
vWhat happens when you heat calcium in 
        ItIt  burnsburns  toto  formform  anan  oxide.oxide.
 oxygen?
                               Magnesium,Magnesium,  
vWhich metals react with steam? aluminium,zincaluminium,zinc
vDoes iron have a slow or fast reaction with 
          Slow.Slow.
 steam?                      No,No,  itit  doesn’t.doesn’t.
vDoes copper react with water?
 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)
2.Which sentence in Passage A can be replaced by 
  the following one? Using metals, we should know 
  how the metals change when they’re 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
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 they’re mixed with 
other substances.
When we use metals, it is important to
know how they react with different 
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.
 这里有一个表格, 反应强的金属在上
 面, 反应弱的在下面。
4.Choose the best title for the 
 passage.

v     The Different Uses of Metals
v     The Reaction of Metals
v     The Reaction of Metals with 
 Oxygen
Put these words in the correct 
order to describe the stages of 

 • Conclusiona scientific  aim     resultexperiment   method 


   aimaim MethodMethod  ResultResult  conclusionconclusion
  conclusion,   method,  result,  
         aim,   apparatus
          An Experiment Report
  AimAim
1. __________:
  ApparatusApparatus
2. __________:
  MethodMethod
3. __________:
   (1)
   (2)
   (3)ResultResult
4.ConclusionConclusion __________:
5. __________:
            Passage B
Task: Write an experiment report
   CanCan  wewe  putput  ironiron  nailsnails  inin  wetwet  air?air?

                      rustrust
1.Scan
  ning
• Right or wrong.     FF
vIron rusts easily in dry air.
vTo make sure there’s no air in the TTwater, 
 you have to boil the water for 3 minutes.
              FF
vWe don’t know whether iron rusts in 
 ordinary water.
 2.Detailed-
   reading
• 1. Fill in the form on P45.

• 2. Jigsaw reading & Fill & Act
3.JigsawAim   (线索)reading & Fill & say

  Apparatus         ToTo  findfind  outout  if...if...

             IronIron  nails,nails,  testtest  tubes,tubes,  oil,oil,  tubetube  holders,holders,
   Method      cottoncotton  wool,wool,  BunsenBunsen  burnerburner
              (1)(1)  put...atput...at  thethe  bottombottom  of;of;  push...downpush...down
                          leave...forleave...for
             (2)(2)  half-fill...with...,half-fill...with...,  boil,boil,  put,put,  add...to,add...to,
                         keep...outkeep...out  of,of,  leave...forleave...for

             (3)(3)  half-fill...with,half-fill...with,  add,add,  leave...forleave...for
    Result
 Conclusion   AfterAfter  aa  week,week,  rustrust
               ((  notnot  ))  rustrust  inin
    4.Complete the 
        sentences 
 • In the first part of the experiment, theairair ____ 
usingis dry. It  showswhat that we irondoesn’tdoesn’t  ___________learnt  rustrust  in 
  dry air.              boilboil
 • In themakemake second  suresure part, you must _____ the 
  AddingAdding             keepkeep
  water to ______ _______nailsnails  that there is no  
  air air-freeair-freein it. ______ some oil to the water can 
  ______ the air out of it. It shows that _____ 
  don’t rust in ____________ordinaryordinary water.
 • In the third part, _______ the tube with 
  water. It shows that they rust in _________ 
  water.
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

 1.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

3.   at the top of …
      at the bottom of …
 3.make sure   of sth.
                        that clause
   eg. I made sure of his arrival.
         You’d 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 考虑
think over 仔细考虑
think of …as… 把……看作……
think out   想出来, 想清楚
think highly/much of 看重
think lightly/little of 轻视
____ and you’ll have a good idea.

A. 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  open___________( / closed 开/关)?
   Who left the lights _____( on 亮着)?
3. Leave the girl where she is.
4. Just leave the engine _______(run).running
HomeworkHomework    ::  
write a simple experiment report aboutabout    
potassiumpotassium  reactsreacts  withwith  coldcold  waterwater
   Aim 
          toto  findfind  outout  ifif  potassiumpotassium  reactsreacts  withwith  coldcold  water.water.
Apparatus aa  breaker,breaker,  coldcold  water,water,  aa  spoon,spoon,  
 Method   potassiumpotassium
          (1)(1)Half-fillHalf-fill  thethe  containercontainer  withwith  coldcold  
            water.water.
           (2)(2)  PutPut  aa  spoonfulspoonful  ofof  potassiumpotassium  intointo
                     thethe  water.water.
  Result
Conclusion TheThe  potassiumpotassium  burns.burns.
          PotassiumPotassium  reactsreacts  withwith  coldcold  water.water.
Thank you very much!
      Bye-bye
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