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1、Chapter3 A dangerous servant,课时安排(two weeks),Reading 3课时Listening and speaking 1课时Language 2课时Using English 1课时Writing 1课时More Practice 1课时Mid-Term Progress File 1课时,教学目标,I.学习有关电的知识II.学习情态动词 can,must,may的用法III.学习如何书写规则,情感目标,通过对电的相关了解，告诉学生要在日常生活中节省电能,安全用电。,Reading(I),a vacuum cleaner,a light bulb,a f
2、an,a television,mobile phones,a radio,a rice cooker,a torch,an iron,How do these electrical appliances work?,Electricity,change into,forms of energy,radio,TV,torch,rice cook,fan,vacuumcleaner,iron,mobile phones,computer,heat energymovement energylight energysound energy,S,l s,l,h,m,m s,h,l s,s,What
3、is electricity?What can we change it into?III.Is electricity important or dangerous?,Group-work,I.To skim the whole text and think about the questions.1.Who were talking about electricity?2.What did Benny want to buy?3.Could Daisy buy electricity when she returned?4.Who was looking foolish at last?P
4、age30 B Look and think,A packet of sweets and a packet of batteries.,Electricity.,Benny.,I.To skim the whole text and think about the questions.,Because if not used carefully,electricity can hurt us.,Quiz,1.热能 2.动能3.一种能量 4.把变成5.能量形式 6.光能7.声能 8.看起来傻9.做家务 10.一个危险的仆人,Reading(II),1.Listen to the story c
5、arefully.2.Practice reading out the whole passage.3.Lets see who reads best.,Group,New words and expressions,1.battery batteries2.scratch ones head:think hard in order to find an answer3.a light bulb4.be careful with:give attention to sth.5.be connected to:join6.A dangerous servant:A person who work
6、s in another persons house,and cooks,cleans,etc,for them.v.serve/n.service/n.servant,7.invisible:that cannot be seen8.forms of energy:shapes or kinds9.an iron10.a rice cooker11.a grin:a wide smile12.get a bill13.a meter14.monthly:every month15.in a way:not completely partly,16.Thats not a bad explan
7、ation:words that make something clearv.explain17.movement energy:moving or being movedv.move18.at last:in the end finally19.a cable,P32.C1.C2 and C3,P32.C1.C2 and C3,P32.C1.C2 and C3,electricity,monthly,in a way,energy,buried,P32.C1.C2 and C3,Quiz,1.一包糖果 2.愚弄某人3.在某种程度上 4.一个坏的解释5.小心对待 6.得到账单7.最终 8.被连
8、接9.关掉 10.一个电灯泡,Reading(III),I.Read Paragraphs 1-3,What did Daisy want to buy?What did Benny want Daisy to buy?Do you think if Daisy can buy what Benny wanted?,2.To fill in the blanks.Electricity is a good _.It flows through a _.A _ measures the amount you use and you get a _ for it _.It is like wate
9、r in a _.Electricity is _.However,we can change it into _ that we can _,_and _.But sometimes electricity is much _ _.So we must _ it.,servant,wire,meter,bill,monthly,way,invisible,forms of energy,see,hear,feel,dangerous,more,be careful with,.Read Paragraphs 4-8 1.To think about the question“What doe
10、s Electricity look like?”,Paragraph 7.,.Read Paragraphs 9-13How does electricity get to Bennys flat?,It comes into our flat through thin wires,and these are connected to thick wires(cables)that are buried under the street.The thick wires are connected to a power station.,wires,meter,cables,street,po
11、wer station,be connected to,be buried,2.To do true or false.(1).()At first Benny thought his trick had been successful.(2).()Daisy bought packets of electricity for Benny when she returned from the shop.(3).()The chemicals inside the batteries produce electricity.,T,F,T,.Read Paragraphs 14-21 1.“Who
12、 looked foolish at last?”,Benny.,Discuss,How does electricity come to our classrooms?,Quiz,1.有礼貌 2.发电站3.以包计量 4.产生电5.更比较危险 6.进入7.测量数量 8.挠头9.一包电 10.粗线,LANGUAGE,Electricity is very important.,What do you think of electricity?,Electricity is dangerous.,1.use air conditioners to make us feel more comfort
13、able in summer and winter.2.use televisions to make our lives more enjoyable.3.Use light bulbs to make our lives more convenient,Why is electricity very important?,We can,I.We use can/cant to talk about what we are able or not able to do.,1.I can count.2.Mary cant/cannot spell.3.A:Can you type?B:Yes
14、,I can./No,I cant.4.A:What can he do?B:He can play football.,Look at the list and say what you can or cant do now.,1.drive a car2.fly to the moon3.stand on your head4.draw a picture with my left hand5.use a computer6.make a kite,7.make music 8.sell vegetables9.speak French10.climb a tree11.make a ro
15、bot12.swim in winter,II.We also use can or may to ask for and give permission.,1.You can/may sit down.2.You may not/cannot leave.3.A:May/Can they come in?B:Yes,they may/can.No,they may not/cant.,May I/we?Can I/we?Yes,/No,borrow your bicycleborrow your tennis rackethave some chocolateshelp you with y
16、our homeworkopen the windowsplay the pianoswitch off the radioturn on the fanuse the phone,Dialogue,III.We use must/mustnt(+infinitive)when its very important for someone to do or not to do something.,1.I must turn it on.2.You must not switch it off.3.A:Must we go now?B:Yes,we must./No,we mustnt.4.A
17、:Why must they get up early?B:They must get up early because they will attend an important meeting.,Say what you must do or mustnt do.,walk on the zebra crossing,enter,smoke,walk here,ride a bicycle,turn left,keep quiet,put the litter in the litter bin,We must We mustnt,How do you deal with electric
18、ity?,Discuss in group and show,Quiz,连词成句1.firemustantouchYouelectric not.2.some I moneyhavepocketmayDad?3.breathetheywhenarePeoplecantwaterunder.4.useprinterisYouitbrokenthebecausecant.5.mustYoujumpnotabusontoitstillismovingwhen.,Using English,QuestionsDo you want to know more about electricity?How
19、can you know more aboutelectricity?,Questions1.Do you know how to tell fiction books and non-fiction books?,Please read the conversation on Page 40 and answer the following question.,2.How many things should you know in order to find a book in the library?,HomeworkTo find a fiction book and a non-fi
20、ction book in our school library2.To make a dialogue about how to find your books.,Listening,To listen to the dialogue between Bennys mother and an electrician and circle on or off.,ON,ON,ON,ON,ON,ON,OFF,OFF,OFF,M:Well,the other flats in your building are all right._1_What about the washing machine?
21、Was that on?W:No,it was off.I wasnt doing any washing at that time.M:Can you remember what was on?W:The usual things.The lights were on,of course,and the air conditioner _2_M:And I suppose the fridge was on.W:Yes,the fridge was on.And the television.That seems to be on all the time in our flat!M:_3_
22、W No，the vacuum cleaner was off.It was in the cupboard.I think the iron was on，though.My son was doing some ironing.But its a brand new iron,and that should be all right.M:_4_ Was the kettle on?W:No,the kettle was off.But the rice cooker was on.M:Ah!W:Yes.And I think it was on last tome when all the
23、 electricity went off,too.M:Right._5_ Let me have a look at it and see if its working properly or not.Ill start by checking the plug.,A.What about the kettle?B.I think something is wrong with one of your machine.C.Were you doing any vacuuming or ironing?D.We always have the air conditioner on in the
24、 summer.E.It sounds like the rice cooker could be causing your problems.,B,D,C,A,E,Writing,answer the telephonebe politedress upkeep their deskslean out of read comicssleepstand on the desk,He/She must/mustnt,In the office,Office Rules,Members of staff must:1._immediately.(立即)2._tidy.3._to customers
25、.(顾客)4._properly in the office.Members of staff must not:5._on desks or chairs.6._the window.7._in the office.8._in the office.,answer the telephone,keep their desks,be polite,dress,lean out of,stand,read comics,sleep,What must/mustnt we do in our classroom?,Think and say,Our School Rules,Students m
26、ust:1._2._3._4._5._Students must not:6._7._8._9._10._,wear school uniforms in the school.,leave the school by half past five.,switch off the lights when school is over.,use the stairs when there is a fire.,keep the school clean.,eat and drink in the classroom.,smoke.,chew gum.,bring valuables to the
27、 school.,fight.,More Practice,Have a try,Almost everyone today uses electricity in one way or another.It is hard to imagine what life in our towns would be like without it.Electricity _ the streets and buildings,and _ people and animals.It _ food in cookers or _ it in refrigerators.It _ trains and t
28、rams and _ the traffic lights,lifts and the machines in factories making all kinds of goods.And the everyday wonders of radio and television use electricity to _ entertainment and news to millions of families.In villages and on farms,electrical machines _ the cows and _ their food.They also cool the
29、 milk and _ the butter.Indeed,electricity finds as much work to do in the country as it does in the towns.,heat light chop work milk cool bring warm drive churn,lights,warms,heats,cools,drives,works,bring,milk,chop,churn,To work in small groups to discuss what would happen if there was a blackout an
30、d there was no electricity(according to the text),Discuss,What must/mustnt we do to save electricity?,Competition,What must/mustnt we do to save electricity?,1,2,3,4,5,6,How to save electricity,1.You mustnt turn on more lights than we need.2.We must switch off the fan when there is nobody in the roo
31、m.3.We must not leave the kettle open when we boil water.,4,5,6,4.We must close the fridge or freezer after we have taken something out.5.We must not leave the light on after we leave a room.6.We must close all the window when we are using the air conditioner.,HomeworkWrite a short passage about how tosave electricity.,Thank you for listening,
